CN1917925B - Double-sided playing card and its production method and equipment - Google Patents

Abstract

A deck of two-sided playing cards is disclosed that allows two independent playing card games to be played simultaneously. The deck includes a plurality of cards having a first set of values on a first side and a second set of values on a second side. A first game of playing cards is played with values assigned to symbols disposed on a first side of each of the playing cards, and an outcome of the first game is determined. The outcome of the second card game is determined with the same hand of playing cards used to play the first game but with the values assigned to the symbols disposed on the second side of each of the playing cards held during the first game. To prevent counting, the symbols appearing on the first side of the playing cards may be pseudo-randomly generated and linked with the symbols appearing on the second side of the playing cards.

Description

Double-sided playing card and its production method and equipment

technical field

The present invention relates generally to games of skill and chance, and more particularly to methods, apparatus and products for playing poker games.

Background technique

The game of poker is a well-known form of entertainment. Poker games, especially wagering poker games played in modern casinos, are more exciting, providing players with greater entertainment interest when the game is played quickly and quickly, allowing the player to concentrate on influencing the outcome of the game decision. Games are also more exciting to players when there are multiple betting opportunities during the game session, when there are multiple chances to win, and/or when a substantial bonus or jackpot is involved.

Wagering games that offer quick succession, multiple betting opportunities, and multiple winning opportunities are known. For example, for quick games, US Patent No. 5,154,429 to LeVasseur discloses a game in which the dealer plays multiple hands versus a single hand so that more hands can be played in the same amount of time. For multiple wagering opportunities, US Patent No. 4,861,041 to Jones et al. discloses a wagering method in which a player may place an additional bet at the beginning of a hand. These extra bets accumulate into the progressive bet, and the player who placed the extra bet wins the progressive bet if the cards received match a predetermined sequence of cards.

While the above mentioned methods and apparatus are aimed at wagering games designed to attract players and provide high entertainment value, there is a constant need in the entertainment industry for new exciting games that provide quick results and multiple wagering opportunities and / or multiple chances to win.

Contents of the invention

In one aspect, the invention discloses a playing card deck for wagering comprising a plurality of playing cards, each of the playing cards comprising: a first face; and a Second side; the first side has at least a first main symbol, the first main symbol is selected from a first main symbol group, each first main symbol in the first main symbol group is represented according to the first set of game rules a playing card symbol, the first set of game rules specifying the value of various combinations of the playing card symbol; Each first sub-symbol in the sub-symbol group represents a playing card identity according to the second set of game rules, and the second set of game rules stipulates the value of various combinations of playing card identifications.

In another aspect, the present invention discloses a playing card deck comprising a plurality of playing cards for wagering, wherein each playing card comprises: a first side having at least a first main symbol and a second main symbol , the first main symbol is selected from a set of standard playing card ranking symbols including 2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q, K, and Ace, while the second main The symbol is selected from a set of standard playing card suit symbols Hearts, Clubs, Diamonds and Spades; and a second side having at least one first symbol from the first set of symbols, the first symbol Each first deck of symbols in the set represents a playing card identity according to the second set of game rules.

In another aspect, the present invention discloses a method of making a playing card having a face and a back, the method comprising the steps of: forming at least a first primary symbol on the face of the playing card, the first primary symbol being derived from The first main symbol group represents the identification of a playing card according to the first group of game rules, and the first group of game rules stipulates the values of various combinations of the playing card identification; pseudo-randomly generates at least one first pair of symbols from the first pair of symbol groups. a pair of symbols, each side symbol in the first set of symbols representing a playing card identity according to a second set of game rules, the second set of game rules specifying the value of the playing card identity; and forming the first deck on the back of the playing cards symbol.

In yet another aspect, the present invention discloses an apparatus for making playing cards, the apparatus comprising: a housing; a media path extending through the housing along which playing card blanks are transported; at least one media path adjacent to the media path; and a printhead connected to receive print data for printing playing card blanks passing the printhead along the media path; at least one processor configured to pseudo-randomly generate at least a plurality of first secondary identifiers, each The first sub-identifiers correspond to respective first sub-symbols taken from a first set of sub-symbols, wherein the at least one processor is coupled to provide a representation of the first sub-symbol and representation of at least several first primary symbols printing data, the first primary symbol is taken from a first set of primary symbols, and the at least one processor is configured to cause the printhead to print the first secondary symbol onto the back of the playing card blank and the first primary symbol to the back of the playing card blank On the face, wherein each primary symbol within a first set of primary symbols represents a playing card identity in accordance with a first set of game rules, the first set of game rules specifying the value of various combinations of playing card symbols, and in the first set of symbols Each side symbol in the set represents a playing card identity according to the second set of game rules.

In another aspect, the invention discloses a method of making a playing card having a front face having a first main symbol from a first main symbol set and a second main symbol from a second main symbol set. Two main symbols, the first and second main symbols are pre-printed on the front of the playing card, and represent the identification of a playing card according to the first set of game rules, the first set of game rules stipulates the value of various combinations of the playing card identification, which A method comprises the following steps: pseudo-randomly generating at least one first sub-symbol from the first sub-symbol group, each sub-symbol in the first sub-symbol group represents a poker identification according to the second group of game rules, and the second group The rules of the game dictate the value of the playing card identification; and forming the first deck of symbols on the back of the playing card.

In yet another aspect, the present invention discloses an apparatus for making playing cards from pre-printed playing card blanks having a set of First and second symbols selected from suit symbols, the apparatus comprising: a casing; a media path extending through the casing along which playing card blanks are conveyed; at least one media path adjacent and connected to a printhead receiving print data for printing playing card blanks passing the printhead along the media path; and at least one processor configured to pseudo-randomly generate at least a plurality of first deck identifiers, each first deck The identifier corresponds to a respective first subsymbol taken from the first subsymbol group, wherein the at least one processor is coupled to provide print data representing the first subsymbol such that the printhead converts the first subsymbol to Printed onto the back of the playing card blanks.

In another aspect, the present invention discloses a method of simultaneously playing two poker games with a deck of double-sided playing cards, the method comprising the steps of: dealing a number of playing cards to at least a first player, each having at least one first primary symbol on a first face and at least one first secondary symbol on a second face, the first primary symbol being taken from a first set of primary symbols and the first secondary symbol being taken from a first set of secondary symbols ; determine the result of the first game according to the first set of game rules, at least in part according to the first main symbol on the first face of at least one of the plurality of playing cards; and according to the second set of game rules, at least in part according to the number of The first set of symbols on the second face of at least one of the playing cards determines the outcome of the second game.

In yet another aspect, the present invention discloses a method of playing a wagering game, the method comprising the steps of: dealing to each of a number of players a number of hands of playing cards, each playing card having at least one The first main symbol and at least one first sub-symbol on the second face, the first main symbol is taken from the first main symbol group and the first sub-symbol is taken from the first sub-symbol group; according to the first set of game rules, determining the outcome of the first game based at least in part on the first primary symbol on the first face of at least one of the plurality of playing cards in each hand; In each of the plurality of hands in which the first primary symbol is determined to win, the second set of symbols is determined at least in part based on the first set of symbols on the second face of at least one of the plurality of playing cards according to a second set of game rules. The result of the game.

In yet another aspect, the present invention discloses a method of playing a wagering game, the method comprising the steps of: dealing to each of a number of players a number of hands of playing cards, each playing card having at least one A first main symbol on a face and at least one first sub-symbol on a second face, the first main symbol being taken from a first main symbol group and the first sub-symbol being taken from a first sub-symbol group; according to the first group game rules, determining an outcome of the first game based at least in part on a first primary symbol on a first face of at least one of the plurality of playing cards in each hand; and for each of the losing hands, according to a second set of game The rules determine an outcome of the second game based at least in part on the first set of symbols on the second face of at least one of the plurality of playing cards.

In yet another aspect, the present invention discloses a method of playing a poker game, the method comprising the steps of: for each of a plurality of players, determining whether the player placed a main bet; Each of the players who placed their respective main bets in is dealt a number of hands of playing cards, each playing card having at least one first primary symbol on the first face and at least one first secondary symbol on the second face , the first primary symbol is taken from the first primary symbol set and the first secondary symbol is taken from the first secondary symbol set; according to the first set of game rules, at least in part based on the first face of at least one of the plurality of playing cards per hand The first primary symbol of determining the outcome of the first game; according to the second set of game rules, at least partly based on the first sub-symbol on the second side of at least one of the plurality of playing cards to determine the outcome of the second game; and for A prize is provided to the player for each of the plurality of hands determined to be winning based at least in part on the first deck of symbols on the second side of at least one of the plurality of playing cards in each hand, if any.

In yet another aspect, the present invention discloses a method of playing a poker game comprising the steps of: for each of a plurality of first players, determining whether the player placed a main bet; Players who place their respective main bets are dealt hands of playing cards each having at least one first main symbol on a first face and at least one first secondary symbol on a second face, the first The main symbol is taken from a first set of main symbols and the first secondary symbol is taken from a first set of secondary symbols; according to a first set of game rules, at least in part based on the first face of at least one of the plurality of playing cards per hand. The primary symbol determines the outcome of the first game; for each player in the number of second players, determining whether the player placed a side bet; and for each player who placed the side bet, according to the second set of game rules , determining an outcome of the second game based at least in part on the first deck of symbols on the second face of at least one of the plurality of playing cards in the respective poker hand.

In yet another aspect, the present invention discloses an apparatus for making playing cards, the apparatus comprising: means for pseudo-randomly generating at least some first pair of identifiers; Corresponding to the device associated with the first sub-symbol, the first sub-symbol is taken from the first sub-symbol group, each sub-symbol in the first sub-symbol group represents a poker identification according to a set of game rules; and the first sub-symbol is printed Apparatus to the back of a playing card blank having a first primary symbol and a second primary symbol on the front of the playing card blank, the first and second primary symbols being taken from a standard set of playing card ranks and a standard set of playing card suits, respectively .

Description of drawings

In the drawings of this specification, the same reference numerals designate similar components or actions. The size and relative positions of components within the drawings are not necessarily drawn to scale. For example, the shapes and angles of the various components are not drawn to scale, and some of them are arbitrarily enlarged and positioned for clarity of the drawing. In addition, the specific shapes of the components depicted in the drawings are not intended to express the actual shapes of these specific components, but are only used to facilitate the identification of these components in the drawings. In these drawings:

Figure 1 is an isometric view of a wagering environment, such as a casino, showing tables at which one or more poker games are played;

Figure 2 shows several playing cards having primary symbols for a first poker game on a first face and secondary symbols for a second poker game on a second face;

Fig. 3 is the chart of the various symbols that are used as primary and secondary symbols on the playing cards of Fig. 2;

Figures 4A and 4B are schematic illustrations of multiple playing cards using standard rank and suit indicia on the front and back of the playing cards;

5A and 5B are schematic illustrations of a deck of playing cards using standard rank and suit indicia on the front of the playing cards and graphical symbols such as standard silver slot machine symbols on the back of each playing card;

6A and 6B are schematic illustrations of multiple playing cards using standard rank and suit indicia on the front of the playing cards and number symbols on the back of the playing cards;

7A and 7B are schematic illustrations of multiple playing cards using numerical symbols on the front of each playing card and graphic symbols on the back of each playing card;

Figure 8 is a schematic diagram of the backsides of three playing cards each having a graphic symbol forming a rebus;

Figure 9 is a schematic diagram of a printer capable of printing symbols onto one side of a playing card;

Figure 10 is a schematic diagram of a printer capable of printing primary and secondary symbols onto the front and back of playing cards, respectively, in a single pass;

Figure 11 is a flow diagram of a method of forming playing cards, including pseudo-randomly generating values corresponding to secondary symbols to be formed on the back of the playing cards;

12 is a flowchart of a method of forming playing cards, including pseudo-randomly generating values corresponding to the main symbols on the front of the playing cards and pseudo-randomly generating values corresponding to the secondary symbols on the back of the playing cards;

13 is a flowchart of a method of forming a playing card comprising pseudo-randomly generating values corresponding to secondary symbols to be formed on the back of a playing card bearing a pre-printed primary symbol on the front;

14 is a flowchart of a method of forming a playing card comprising pseudo-randomly generating values corresponding to secondary symbols on the back of the playing card based on values associated with primary symbols pre-printed on the front of the playing card;

15 is a flowchart of a method of playing a wagering game, including determining the outcome of a first game based on the primary symbols on the front of the playing cards and determining the outcome of the second game based on the secondary symbols on the back of the playing cards for each losing hand;

16 is a flowchart of a method of playing a wagering game comprising determining the outcome of a first game based on the primary symbols on the front of the playing cards and determining the outcome of the second game based on the secondary symbols on the back of the playing cards for each hand won;

17 is a flowchart of a method of playing a poker game, including determining the outcome of a first game based on the primary symbols on the front of the playing cards and determining the outcome of a second game based on the secondary symbols on the back of the playing cards for players placing side bets ;

Figure 18 is a flowchart of a method of playing a wagering game, including determining the outcome of a first game based on the primary symbols on the front of the playing cards and by players who also placed side bets on cards with winning cards based on the secondary symbols on the back of the playing cards determining the outcome of the second game;

19 is a flowchart of a method of playing a wagering game, including determining the outcome of a first game based on the primary symbols on the front of the playing cards and by players who also placed side bets on cards with winning cards based on the secondary symbols on the back of the playing cards. The outcome of the second game is determined.

Detailed ways

In the following description, specific details are given so as to provide a thorough understanding of various embodiments of the invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these details. In other instances, well-known structures associated with playing cards, printers, processors, and gaming or wagering devices have not been shown or described in detail in order not to unnecessarily obscure the description of the embodiments of the invention.

Throughout the specification and claims that follow, the word "comprises" is to be read in the open sense of "comprising" as meaning "including but not limited to", unless the context requires otherwise.

The headings added here are for convenience only and do not interpret the scope or meaning of the present invention.

game environment

Figure 1 shows a poker game, such as blackjack, played at a card table 10 by a game operator or dealer 12 and customers or players 14, 16 employed by a gaming room or casino. While blackjack is used as an example, the material here is generally applicable to various poker games, baccarat or poker to name a few.

During play, the dealer 12 draws playing cards 18 from a card shoe 20. The banker 12 can take out the playing cards 18 one by one from the card shoe 20, or after taking out some playing cards 18 from the card shoe 20, deal the cards by hand. Many players 14, 16 appreciate a game in which cards are dealt from a deck 18 held in hand, rather than being drawn or generated from a card shoe 20 one by one.

Players 14 , 16 each bet by placing a number of chips 22 within a betting circle 24 defined on the table 26 of the poker table 10 . Chips 22 typically come in various denominations, as will be described in more detail below. Players 14, 16 exchange money or credit for chips at a casino cashier. Casinos usually require chips to bet 22 instead of actual money. In some games, the player 14 may choose to play multiple hands by placing a multi-bet as shown in FIG. 1 . Players 14, 16 typically have some chips 28 in reserve for wagering. In some cases, the table top 26 may also be marked with some side bet circles 29 for playing side or bonus wager (bonus wager) 31 settings. Side bets 31 are bets placed in addition to primary bets 22 within betting circle 24 and may correspond to bets on secondary games, jackpots, or other types of bonus bets, as described in more detail below like that.

In blackjack, after players 14, 16 place some chips 22 as initial bets on their respective betting circles 24, 29, the dealer 12 deals each player two face-down cards from a deck 18 of cards. 30, and deal yourself a face-down card 32 (dark card) and a face-up card 34 (bright card). In some casinos, the playing cards 30 dealt to players 14, 16 are also dealt face up. Players 14, 16 can accept additional cards (gain cards) from the deck 18 in order to try to reach a total card value of 21 points without exceeding 21 points, wherein face cards are counted as 10 points, and A can be counted by the card holder The choice counts as 1 point or 11 points. The dealer 12 also tries to reach 21 without exceeding 21, although there are rules that usually require the dealer to take a gamble card when holding a soft 17. Players 14, 16 may vary their bets (ie, chips 22 and/or 31) after being dealt starting hands 30, 34 based on their own hands and the dealer's face-up card 34. For example, the players 14 and 16 can "gamble" or "count", they can also "double down" or "buy insurance".

At the end of a hand or game, the dealer 12 takes the betting chips 22 from the losing player and pays out the winning chips to the winning player. What is won is a set of odds for the game multiplied by the amount of betting chips 22. What you lose is usually the amount of betting chips 22 and 31. The dealer 12 deposits the betting chips 22 collected or "taken in" from each losing hand into a dealer's chip bank presented as a chip tray 36 on the poker table. The dealer 12 withdraws the required number of chips 38 from the chip tray 36 to pay winning hands. Chip tray 36 typically includes several recesses, with different recesses receiving chips 38 of different values. The change of the chips in the chip tray 36 means winning or losing at the table 10 for the casino. Many casinos allow the dealer 12 to exchange an item of value 40 , such as currency, for chips at the table 10 . The dealer 12 places an item of value 40 into a drop box 42 on or near the table 10 . Periodically, such as at the turn of a dealer, the contents of the betting box 42 must be checked against the contents of the chip tray 36 to ensure that the correct number and value of chips have been dispensed.

double sided playing cards

Figure 2 shows a deck of playing cards 18 in which each card 44 has a first face 44a and a second face 44b. As described herein, the first or front side 44a refers to the surface of the playing card 44 that bears the primary symbols used in the primary or first game, while the second or back side refers to the surface of the playing card 44. A surface bearing sub-symbols used in a sub-game or a second game.

As shown in FIG. 2 , the front face 44a of the playing card bears a first primary symbol (ie, K) 46 and a second primary symbol (ie, hearts) 48 . In this embodiment, the first primary symbol 46 is selected from a first group of primary symbols that make up the standard playing card ranking symbols (ie, 2-10, J, Q, K, A). Also in this embodiment, the second primary symbol 48 is selected from a second group of primary symbols including standard playing card suit symbols (ie hearts, diamonds, spades, clubs).

As also shown in FIG. 2 , the back side 44b of the playing card 44 includes at least a first set of symbols 50 . In this embodiment, the first secondary symbol 50 is selected from a first set of secondary symbols, such as a set that includes all or some of the standard silver slot machine symbols (eg, cherries, bars, bells, stars, lemons).

various appropriate symbols

FIG. 3 shows some examples of suitable symbols for use on the front face 44a and/or the back face 44b of each playing card 44 of the playing card deck 18 . The first and second, primary and secondary symbols may take the form of standard playing card line symbols as shown in row 52 and/or standard playing card suit symbols as shown in row 54 . The first and second primary and secondary symbols may take the form of pictorial or graphical symbols as shown in row 56 , numerical symbols as shown in row 58 and/or textual symbols as shown in row 60 . Graphical and/or textual symbols may represent specific items, services or other rewards to be awarded, and/or may form part of a puzzle to be solved. For example, pictorial or word symbols may form a rebus or riddle to be solved, the solution of which determines the prize to be won. The first and second primary and secondary symbols may take the form of color symbols as shown in row 62 and/or monetary symbols as shown in row 64 . Amount symbols may indicate an amount to be awarded or an amount to be multiplied or added to other winning amounts. In some cases, these symbols can be used in matching games, such as games that require two or more symbols to match in unison or combinations of individual symbols to achieve a desired outcome, as will be explained in more detail below.

4A and 4B illustrate a deck 18 of playing cards, the illustrated deck 18 including fifty-two playing cards, according to one illustrated embodiment. Other embodiments may use more or fewer playing cards 44 in a deck 18 of playing cards. For convenience of expression, this pair of boards 18 are organized into the same suit in the same row and the same rank in the same column. The individual playing cards 44 in FIG. 4B are arranged in the same order as in FIG. 4A. Thus, FIGS. 4A and 4B illustrate a mapping between the front face 44a and the back face 44b of the playing cards 44 forming the deck 18 .

Specifically, FIG. 4A shows the front face 44a of each playing card 44 within the deck 18. As shown in FIG. The face 44a of each playing card 44 has a first primary symbol 46 and a second primary symbol 48 . The first primary symbol 46 is selected from a first set of primary symbols, such as a set of standard playing card ranking symbols. The second primary symbol 48 is selected from a second set of primary symbols, such as a set of standard playing card suit symbols. Thus, the deck of playing cards 18 forms a deck of standard playing cards based on the primary symbols 46,48.

FIG. 4B shows the back side 44b of each playing card 44 within the deck 18 . The back 44b of each playing card 44 has a first set of symbols 50 and a second set of symbols 66 . The first and second sets of symbols 50, 66 also take the form of standard playing card rank and suit symbols, respectively, to form a standard playing card deck from the primary symbols 46, 48.

The mappings shown in Figures 4A and 4B are not absolute. As can be seen, it is beneficial to change the relationship between the primary symbols 46, 48 appearing on the front 44a and the secondary symbols 50, 66 appearing on the back 44b so that the players 14, 16 cannot move from the primary symbols 46, 48. Guess the sub-symbols 50, 66. Thus, while the players 14, 16 may know the value or identity of the playing card 44 as given by the primary symbols 46, 48 on the front face 44a of the playing card 44, the players 14, 16 do not know and cannot determine the The value or identity of the playing card 44 as defined by the secondary symbols 50, 66 on the back 44b of the card 44.

Figures 5A and 5B show a deck 18 according to a second embodiment, comprising 52 playing cards. Equally, these playing cards 18 are organized into the same suit in the same row and the same rank in the same column for convenience of illustration. In FIG. 5B each card 44 is arranged in the same order as in FIG. 5A. Thus, FIGS. 5A and 5B illustrate a mapping between the front face 44a and the back face 44b of the playing cards 44 forming the deck 18 .

Specifically, FIG. 5A shows the front face 44a of each playing card 44 within the deck 18. As shown in FIG. The face 44a of each playing card 44 has a first primary symbol 46 and a second primary symbol 48 . The first primary symbol 46 is selected from a first set of primary symbols, such as a set of standard playing card ranking symbols. The second primary symbol 48 is selected from a second set of primary symbols, such as a set of standard playing card suit symbols. Thus, the deck of playing cards 18 forms a deck of standard playing cards based on the primary symbols 46,48.

FIG. 5B shows the back side 44b of each playing card 44 within the deck 18 . The back 44b of each playing card 44 has a first deck of symbols 50 . The first secondary symbol 50 takes the form of a graphic symbol such as selected from a first set of secondary symbols consisting of all or some of the standard silver slot machine symbols (e.g., cherries, bells, stars, lemons, bars, double bars). form. In this embodiment, a winning poker hand may be formed by matching several decks of symbols 50 in a manner similar to that used in silver slot machine games.

Figures 6A and 6B illustrate a deck of playing cards 19 according to another embodiment. Equally, these playing cards 18 are organized into the same suit in the same row and the same rank in the same column for convenience of illustration. In FIG. 6B each card 44 is arranged in the same order as in FIG. 5A. Thus, FIGS. 6A and 6B illustrate a mapping between the front face 44a and the back face 44b of the playing cards 44 forming the deck 18 .

Specifically, FIG. 6A shows the front face 44a of each playing card 44 within the deck 18. As shown in FIG. Each face 44a has a first primary symbol 46 and a second primary symbol 48 . The first primary symbol 46 is selected from a first set of primary symbols, such as a set of standard playing card ranking symbols. The second primary symbol 48 is selected from a second set of primary symbols, such as a set of standard playing card suit symbols. Thus, the deck of playing cards 18 forms a deck of standard playing cards based on the primary symbols 46,48.

FIG. 6B shows the back side 44b of each playing card 44 within the deck 18. As shown in FIG. The back 44b of each playing card 44 has a first deck of symbols 50 . The first subsymbol 50 is selected from a first group of subsymbols, for example a group of numerical symbols such as integers (eg, 5, 10, 20). As will be explained below, these number sub-symbols can be used in games that require number symbol matching, number symbol sums, multiples of prize amounts, or can otherwise represent a prize.

Figures 7A and 7B show a deck 18 according to a second embodiment, comprising 52 playing cards. Likewise, the individual playing cards 44 in FIG. 5B are arranged in the same order as in FIG. 5A. Thus, FIGS. 7A and 7B illustrate a mapping between the front face 44a and the back face 44b of the playing cards 44 forming the deck 18 .

Specifically, FIG. 7A shows the front face 44a of each playing card 44 within the deck 18. As shown in FIG. The face 44a of each playing card 44 has a first primary symbol 46 . The first primary symbol 46 is selected from a first set of primary symbols, for example a set of numeric symbols such as integers (eg, 5, 10, 20). These number sub-symbols can be used in some games that require matching of number symbols, sum of number symbols, multiples of prize amount, or can represent a kind of reward in addition.

FIG. 7B shows the back side 44b of each playing card 44 within the deck 18 . The back 44b of each playing card 44 has a first deck of symbols 50 . The first sub-symbol 50 is selected from a first group of sub-symbols such as a group of graphic symbols, text symbols, color symbols and/or monetary symbols. As explained herein, these subsymbols can be used to need to match symbols, to collect symbols to match a specified combination, to add symbols together to reach a specified total and/or to solve a rebus or puzzle game. These sub-symbols may additionally or alternatively represent an award, an amount of an award, a multiple of an amount of an award, or may otherwise represent an award or bonus.

Figure 8 shows the back faces 44b of three playing cards 44 each having a first deck symbol 50 presented as a graphic symbol. These graphical symbols form a rebus (ie, a pictorial or symbolic representation of a word) to be solved by the player 14,16. As illustrated, these first secondary symbols 50 represent eyes, hearts, and sheep, which the player can guess as the phrase "I love you." Card 44 can form additional or alternative rebuses with other symbols, and can form rebuses or other puzzles with word symbols.

Thus, the embodiments described above allow a player to play a second poker game while playing a first poker game (eg, blackjack). The embodiment shown is exemplary and those skilled in the art will appreciate that aspects of different embodiments may be combined or substituted by aspects of other embodiments. In addition, symbols other than those illustrated may be used for the playing cards 44 .

Typically, a player 14, 16 in order to achieve a winning outcome (e.g., a hand with a total value approaching but not exceeding blackjack) in a first game (e.g., blackjack) played according to a first set of rules according to The main symbols 46, 48 make a decision (eg, whether to gamble or count). The players 14, 16 can independently make decisions in the first game independent of the side symbols or the rules of the second game. Alternatively, players 14, 16 may simultaneously base their decision in the first game on a desired outcome in the second game. For example, players 14, 16 may hold a hand with a primary symbol totaling 17 points. Although the player 14, 16 who holds such a hand of cards will firmly consider no more cards, another card will increase the probability of winning the hand formed by the sub-symbols and may cause the player 14, 16 to ask for another card. cards. For example, where the side symbols are standard silver slot machine symbols, an additional playing card can significantly increase the likelihood of forming a hand with two or more matching side symbols and/or can increase Great possibility of winning higher or additional bonuses or prizes.

Equipment for forming double-sided playing cards

Figure 9 illustrates an apparatus 70 for forming the individual playing cards 44 of a deck, designed in accordance with one embodiment. The device 70 may be located at the poker making location away from the casino or on a gaming floor away from the casino. Alternatively, the device 70 may also be located in a casino, either in an area near the patrons or on the gaming floor, such as in the form of a card shoe 20 on a poker table 10 (FIG. 1). When placed on a poker table 10, the device 70 can dispense playing cards 44 in real time for the dealer 12 to deal to the players 14,16.

Device 70 includes a housing 72 at least a portion of which defines a media path 74 along which media such as playing cards or playing card blanks 76 are conveyed. As shown in FIG. 9, the playing card blank 76 may be in the form of a plurality of blank playing cards. The device 70 includes a controller, such as a microprocessor (Mp) 78 , connected to control the printhead 80 to print on the playing card blank 76 , for example, through a print controller 82 . The microprocessor 78 is also connected to control a motor 84 such as a stepper motor, for example through a motor controller 86 . Motor 84 is coupled to drive platen 88 to advance playing card blanks 76 along media pathway 74 .

Microprocessor 78 may receive instructions and/or data from one or more memories, such as random access memory (RAM) 90 and/or read only memory (ROM) 92 . One or both of memories 90, 92 may store print data corresponding to instructions for controlling printhead 80 to print primary and/or secondary symbols. Printhead 80 may be of any form including thermal, inkjet, impact or laser.

Microprocessor 78 is programmed to generate at least one secondary identifier for each playing card 44 that identifies at least one secondary symbol in a set of secondary symbols.

The pseudo-randomly generated secondary identifiers such that the pseudo-randomly generated secondary symbols 50 , 66 may be independent of the primary symbols 46 , 48 to be printed or pre-printed on the front face 44 a of the playing card blank 76 . For example, microprocessor 78 may use a seed value independent of primary symbols 46, 48 in a standard pseudo-random number generation algorithm.

Alternatively, the secondary identifiers may be pseudo-randomly generated such that the pseudo-randomly generated secondary symbols 50 , 66 relate to the primary symbols 46 , 48 to be printed or pre-printed on the front face 44 a of the playing card blank 76 . For example, microprocessor 78 may use a seed value associated with primary symbols 46, 48 in a standard pseudo-random number generation algorithm.

Additionally or instead the pseudo-random number generation algorithm is weighted according to the seed value. The weighting can be increased in the event that the primary symbol has a "low" value (e.g. low value rank such as 2-6) pseudo-randomly selects a "high" value secondary symbol 50, 66 (e.g. cherry or such as 10, 66). High value ranking like J, Q, K, A) possibility. Similarly, the weighting can be reduced pseudo-randomly to select a "high" valued secondary symbol 50, 66 if the primary symbol has a "high" value (e.g., a high valued rank such as 10, J, Q, K, A). (e.g. cherries or high value ranks such as 10, J, Q, K, A). Weighting can be achieved by varying the probability or group length for a particular seed value. For example, the pseudo-random number generation algorithm may define a 100% probability of generating a secondary identifier corresponding to a cherry for a seed value associated with a high value primary identifier and a probability of generating a secondary identifier corresponding to a cherry for a seed value associated with a low value primary identifier. The probability of the corresponding secondary identifier is 20%. The pseudo-random number generation algorithm may be defined to generate primary and secondary identifiers in pairs based on the player's probability of winning one game, the other game, or a combination of both games.

Accordingly, the microprocessor 78 may pseudo-randomly generate a secondary identifier corresponding to one of the previously described standard playing card ranking and/or suit symbols, graphic symbols, numerical symbols, text symbols, color symbols and/or monetary symbols.

Device 70 may optionally include a sensor 94 that automatically reads indicia identifying primary symbols 46,48. This sensor can be an optical or magnetic sensor. For example, sensor 94 may be an optical scanner or imager. The sensor 94 may detect the primary symbol 46 , 48 or may detect other symbols indicative of the primary symbol 46 , 48 . For example, sensor 94 may be embodied as a barcode reader that reads the barcode carried by each card. The barcode may encode the identity of the playing card 44 and/or the primary symbols 46, 48, or may encode an identifier such as a unique serial number that may determine the identity of the playing card 44, eg, by a look-up table or algorithm.

The apparatus 10 of FIG. 9 is particularly suitable where the playing card 18 includes one or more primary symbols 46, 48 pre-printed on the front face 44a, or where the playing card passes through the apparatus 70 twice, once face-up and face-down.

FIG. 10 shows another embodiment of the device 70 . This embodiment and other embodiments and other alternatives described herein are substantially similar to the previously described embodiment, and common acts and structures will be designated with the same reference numerals. Only significant differences in work and structure will be described below.

The apparatus 70 of FIG. 10 includes at least a second printhead 96 disposed on the opposite side of the media path 74 relative to the first printhead 80 for printing the front face 44a of the playing card blank 76 in a single pass through the media path. The microprocessor 78 or another microprocessor (not shown) controls the second printhead 96 via the second print controller 98 to print one or more primary symbols 46 , 48 onto the front face 44 a of the playing card blank 76 . As shown in FIG. 10, playing card blanks 76 may be in the form of rolls. A driven or undriven platen 99 opposes the second printhead 96 to provide a substantially smooth surface for printing.

Although terms such as print head and print are used in the description, device 70 may take any form of device suitable for forming a visible image on playing card blank 76, including but not limited to Xerox PARC (Palo Alto, California). ) developed GYRICON ^TM technology and/or leuco dye thermochromic ink devices.

How to make double-sided playing cards

FIG. 11 illustrates a method 100 of operating the device 70 of FIG. 10 designed in accordance with one illustrated embodiment. At step 102 , the microprocessor 78 pseudo-randomly generates at least one secondary identifier for each playing card 44 .

The "identifier" mentioned here is a value, typically a numerical value identifying a playing card. The use of numerical identifiers is particularly advantageous where the identifiers are generated by a computer or microprocessor 78 using standard pseudorandom number generation algorithms. Generating random numbers on a computer is well known in the computing arts. Mathematicians generally do not consider computer-generated random numbers to be truly random, so they generally refer to such numbers as pseudo-random. However such a number is random enough for most practical purposes such as dealing playing cards to players. Thus, while designating a computer-generated identifier as a pseudo-random identifier, such phraseology as used herein and in the claims shall include any identifier having a suitably random distribution, regardless of mathematical Whether it is truly random.

Map an identifier to one or more human-recognizable symbols. For example, the identifier can be one of 52 numbers (for example, 0-51), which can be mapped to 52 combinations of ranking and suit symbols of a standard deck of playing cards. Thus, microprocessor 78, for example, may generate a single identifier that maps to multiple symbols (e.g., numeric identifier 1 for square 2), or may generate identifiers that map to individual symbols (eg, numeric identifier 1 Indicates that the ranking is 2 and the numerical identifier 52 indicates that the suit is a square).

At step 104, the microprocessor 78 associates the secondary identifier with the print data stored in the memory 90,92 representing the corresponding secondary symbol 50,66. At step 106, the microprocessor 78 provides print data representing the secondary symbols 50, 66 and the primary symbols 46, 48 to the printheads 80, 96, respectively. At step 108 , the printhead 80 prints at least one secondary symbol 50 , 66 onto the back 44 b of the playing card blank 76 . At step 110 , the printhead 96 prints at least one primary symbol 46 , 48 onto the front face 44 a of the playing card blank 76 . Thus, primary and secondary symbols 46, 48, 50, 66 are formed on each playing card 44 in a single pass.

FIG. 12 illustrates a method 120 of operating the device 70 of FIG. 10 in accordance with another illustrated embodiment. At step 122 , the microprocessor 78 pseudo-randomly generates at least one primary identifier for each playing card 44 . At step 124 , the microprocessor 78 associates the master identifier with the print data stored in the memory 90 , 92 representing the corresponding master symbol 46 , 48 . At step 126, the microprocessor 78 pseudo-randomly generates at least one secondary identifier for each playing card 44 based at least in part on the primary identifier. At step 128 , the microprocessor 78 associates the secondary identifier with the print data stored in the memory 90 , 92 representing the corresponding secondary symbol 50 , 66 . At step 130, microprocessor 78 provides print data representing secondary symbols 50, 66 and primary symbols 46, 48 to printheads 80, 94, respectively. At step 132 , the second printhead 96 prints at least one primary symbol 46 , 48 on the front face 44 a of each playing card 44 . At step 134 , the first printhead 80 prints at least one secondary symbol 50 , 66 on the back 44 b of each playing card 44 . Thus, primary and secondary symbols 46 , 48 , 50 , 66 are formed on each playing card 44 in a single pass, with the secondary symbols 50 , 66 being related to the primary symbols 46 , 48 .

FIG. 13 illustrates a method 150 of operating the device 70 of FIG. 9 in accordance with one illustrated embodiment. At step 152 , the device 70 receives the playing cards 44 with one or more primary symbols 46 , 48 pre-printed on the front face 44 a of each playing card 44 . At step 154 , the microprocessor 78 pseudo-randomly generates at least one secondary identifier for each playing card 44 . At step 156, the microprocessor 78 associates the secondary identifier with the print data stored in the memory 90,92 representing the corresponding secondary symbol 50,66. At step 158 , microprocessor 78 provides print data to printhead 80 via print controller 82 . At step 160 , the printhead 80 prints at least one secondary symbol 50 , 66 on the back 44 b of each playing card 44 . Thus, the device 70 forms the secondary symbols 50 , 66 independently of the primary symbols 46 , 48 on the single-pass playing cards 44 .

In another approach, the apparatus 70 of FIG. 9 may be used with blank playing card blanks 76 or playing card blanks without any pre-formed primary symbols 46,48. In such an embodiment, the device 70 may form one or more primary symbols 46, 48 on the face 44a of another pass of the playing card 44 either before or after the secondary symbols 50, 66 are formed.

FIG. 14 illustrates a method 170 of operating the device 70 of FIG. 9 in accordance with another illustrated embodiment. At step 172, the apparatus 70 receives playing card blanks 76 with one or more primary symbols 46, 48 pre-printed on the front face of each playing card. At step 174, the microprocessor 78 determines the primary identifier associated with the primary symbol 46,48. At step 176, the microprocessor 78 pseudo-randomly generates at least one secondary identifier for each playing card 44 based at least in part on the determined primary identifier. At step 178, the microprocessor 78 associates the secondary identifier with the print data stored in the memory 90,92 representing the corresponding secondary symbol 50,66. At step 180 , microprocessor 78 provides print data to printhead 80 via print controller 82 . At step 182 , the printhead 80 prints at least one secondary symbol 50 , 66 on the back 44 b of each playing card 44 .

game played with double-sided playing cards

FIG. 15 illustrates a method 200 of playing a wagering game in accordance with one illustrated embodiment. In step 202 , the dealer 12 determines the players 14 , 16 who have placed the main bet 22 . At step 204, the dealer 12 deals cards to the players 14, 16 who placed the main bet 22 and optionally to the dealer himself. In step 206, the dealer 12 determines the outcome of the first game based on the one or more primary symbols 46, 48 according to the first set of game rules. In step 208, the dealer 12 pays out winning hands in the first game.

In step 210, for each losing hand, the dealer determines the outcome of the second game based on the one or more secondary symbols 50, 66 according to the second set of game rules. The rules of the second game may be the same as the rules of the first game, for example where both games are blackjack and the deck is similar to that shown in Figures 4A and 4B. Or, it may also be that the rules of the second game are different from the rules of the first game, for example, when one game is blackjack, the second game is a matching game and the deck of cards is the same as that shown in Figures 5A and 5B, 6A, 6B, 7A, A similar case is shown in 7B.

In step 212, the dealer 12 pays out winning hands in the second game.

FIG. 16 illustrates a method 220 of playing a wagering game according to another illustrated embodiment. At step 222 , the dealer 12 determines the players 14 , 16 who placed the main bet 22 . At step 224, the dealer 12 deals cards to the players 14, 16 who placed the main bet 22 and optionally to the dealer himself. In step 226, the dealer determines the outcome of the first game based on the main symbols 46,48.

In step 228, for each winning hand, the dealer 12 determines the outcome of the second game based on the secondary symbols 50,66. In step 230, the dealer 12 pays out base payouts to hands that win only the first game and increases payouts to hands that win both the first and second games. The increased payout can be, for example, a certain multiple of the basic payout, or a specified bonus or amount based on accumulation based on a progressive betting system.

Figure 17 illustrates a method 250 of playing a wagering game according to yet another illustrated embodiment. At step 252 , the dealer 12 determines the players 14 , 16 who placed the main bet 22 . At step 254, the dealer 12 deals cards to the players 14, 16 who placed the main bet 22 and optionally to the dealer himself. In step 256, the dealer 12 determines the outcome of the first game based on the primary symbols 46,48.

In step 258 , the dealer 12 determines the players 14 , 16 who placed the side bet 22 . In step 260 , for each player 14 , 16 who placed a side bet 31 , the dealer 12 determines the outcome of the second game based on the side symbols 50 , 66 . In step 262, the dealer 12 pays out the winning bet. Paying a winning bet may include paying a winning bet independently for the first and second games, respectively, or for any given hand based on a combination of game outcomes. For example, winning hands in both the first and second games may receive increased payouts as explained above.

Figure 18 illustrates a method 270 of playing a wagering game according to yet another illustrated embodiment. In step 272 , the dealer 12 determines the players 14 , 16 who placed the main bet 22 . At step 274, the dealer 12 deals cards to the players 14, 16 who placed the main bet 22 and optionally to the dealer himself. In step 276, the dealer 12 determines the outcome of the first game based on the primary symbols 46,48.

In step 278 , the dealer 12 determines the players 14 , 16 who placed the side bet 31 . In step 280, the dealer 12 determines the outcome of the second game based on the side symbols 50, 66 for players who also placed side bets with a winning hand in the first game. In step 282, the dealer 12 pays out winning bets as explained above.

FIG. 19 illustrates a method 290 of playing a wagering game according to yet another illustrated embodiment. Method 290 is similar in many respects to method 280, and thus common actions are marked with the same reference numerals. Method 290 replaces step 280 of method 270 with step 292 . In step 292, the dealer 12 determines the outcome of the second game based on the side symbols 50, 66 for players who also placed a side bet with a losing hand. Thus, the method 290 gives players 14, 16 who lost the first game the opportunity to win the second game.

Although some specific implementations and examples of double-sided poker game methods, devices and products have been illustrated here, various equivalent modifications can be made as can be seen by those familiar with the relevant technical fields. It does not deviate from the spirit of the present invention and the scope of patent protection. The principles of the invention presented here can be applied to other poker games and are not limited to the blackjack poker game as generally described above. These principles can be applied to devices other than printers that form symbols on playing cards. The device may use any pseudorandom symbol generation algorithm. Pseudo-randomly generated sub-symbols can be irrelevant to or related to the main symbol according to specific applications.

The various embodiments described above can be combined to provide some other implementation manners. All U.S. patents, U.S. patent application publications, U.S. patent applications, foreign patents, foreign patent applications, and non-patent publications incorporated by reference in this specification and/or listed in the Application Data Sheet include, but are not limited to : U.S. Provisional Application No. 60/296,866 "METHOD, APPARATUS AND ARTICLE FORRANDOM SEQUENCE GENERATION AND PLAYING CARDDISTRIBUTION" filed on June 8, 2001; U.S. Patent Application No. 10/017,276 "METHOD, APPARATUS AND ARTICLE FORRANDOM SEQUENCE GENERATION AND PLAYING CARDDISTRIBUTION"; and U.S. Patent No. 6,638,161 "METHOD, APPARATUS AND ARTICLE FOR VERIFYING CARDGAMES, SUCH AS PLAYING CARD DISTRIBUTION" issued October 28, 2003, all incorporated herein by reference quote. Aspects of the invention can be modified, if necessary, to use the systems, circuits and concepts of these patents, applications and publications to provide further implementations of the invention.

These and other changes to the invention can be made in light of the above detailed description. Generally, in the following claims, the terms used should not be construed to limit the invention to the specific embodiments disclosed in the specification and claims, but should be construed to include all aspects according to the claims. Book-operated playing cards, poker games and/or devices for forming or distributing double-sided playing cards. Therefore, the present invention is not limited to the disclosed situation, and the patent protection scope of the present invention is determined entirely by the following claims.

Claims (50)

1. many playing card that are used to make a bet, every sheet playing card comprises in these playing card:

First; And

With first relative second,

First mask has at least one main symbol; At least one main symbol is selected from main symbols; Each main symbol in the main symbols is represented first playing card sign according to first group of game rule; First group of game rule stipulated the value of first playing card sign, wherein at least partly confirmed the result of first recreation by first group of game rule and main symbols; And

Second mask has at least the first secondary symbol; The first secondary symbol is selected from the first secondary symbols; The first secondary symbol be can not be from least one the main symbol on first of playing card each distinguish; Each first secondary symbol in the first secondary symbols is represented second playing card sign according to second group of game rule; Second group of game rule is independent of the value of main symbol ground regulation second playing card sign in the main symbols, wherein at least partly confirmed the result of second recreation by the second group of game rule and the first secondary symbols, and the result of wherein first recreation confirmed by the result of second recreation also.

2. according to the described many sheet playing cards of claim 1, wherein the first secondary symbols is different with main symbols.

3. according to the described many sheet playing cards of claim 1, wherein the first secondary symbols is identical with main symbols.

4. according to the described many sheet playing cards of claim 1; Wherein at least one main symbol is the first main symbol; And wherein at least one main symbol is the second main symbol; Wherein main symbols comprises the first main symbols and the second main symbols; The first main symbol is selected from the first main symbols, and the second main symbol selects from the second main symbols, and the first secondary symbol on second of playing card is to distinguish from the first main symbol and the second main symbol on first of playing card; Each second main symbol in the second main symbols is represented the playing card sign with the first main symbol combination of taking from the first main symbols according to first group of game rule, the value of the various combinations of first group of game rule regulation playing card sign.

5. according to the described many sheet playing cards of claim 4, wherein the first main symbols comprises playing card rank symbols 2,3,4,5,6,7,8,9,10, J, Q, K and the A of one group of standard.

6. according to the described many sheet playing cards of claim 5, wherein the second main symbols comprises playing card pip red heart, plum blossom, square and the spade of one group of standard.

7. according to the described many sheet playing cards of claim 6; Wherein second mask has at least the second secondary symbol; The second secondary symbol is selected from the second secondary symbols; Each second secondary symbol in the second secondary symbols is represented the playing card sign with the first secondary symbol combination of taking from the first secondary symbols according to second group of game rule, the value of the various combinations of second group of game rule regulation playing card sign.

8. according to the described many sheet playing cards of claim 7, wherein the first secondary symbols comprises playing card rank symbols 2,3,4,5,6,7,8,9,10, J, Q, K and the A of one group of standard.

9. according to the described many sheet playing cards of claim 8, wherein the second secondary symbols comprises playing card pip red heart, plum blossom, square and the spade of one group of standard.

10. according to the described many sheet playing cards of claim 9; Wherein the first and second main symbols on first of any playing card are to be first kind of color under the situation of one of red heart and square at the second main symbol on first; And the first and second main symbols on first of any playing card are to be second kind of color under the situation of one of plum blossom and spade at the second main symbol on first; And wherein the first and second secondary symbols on second of any playing card are to be first kind of color under the situation of one of red heart and square at the second secondary symbol on second, and the first and second secondary symbols on second of any playing card are to be second kind of color under the situation of one of plum blossom and spade at the second secondary symbol on second.

11. according to the described many sheet playing cards of claim 1, wherein first group of game rule is the game rule that is used for one of Blackjack, Baccarat, Caribbean Stud Poker and LET IT RIDE.

12. according to the described many sheet playing cards of claim 11, wherein second group of game rule is the game rule that is used for one of Blackjack, Baccarat, Caribbean Stud Poker and LET IT RIDE.

13. according to the described many sheet playing cards of claim 11, wherein second group of game rule is identical with first group of game rule.

14. according to the described many sheet playing cards of claim 11, wherein second group of game rule is different with first group of game rule.

15. according to the described many sheet playing cards of claim 1, wherein the first secondary symbols comprises the subclass that at least one comprises the standard slot machine symbols of cherry, whippletree and bell.

16. according to the described many sheet playing cards of claim 1, wherein the first secondary symbols comprises one group of number.

17. according to the described many sheet playing cards of claim 1, wherein the first secondary symbols comprises a block graphics.

18. according to the described many sheet playing cards of claim 1, wherein the first secondary symbols comprises a block graphics, has at least some figures to form at least one picture puzzle in this block graphics.

19. according to the described many sheet playing cards of claim 1, wherein second group of game rule is according to the secondary symbol of the playing card number of the secondary symbol of being collected that on second of playing card, has coupling and the coupling value with respect to the various combinations of the relative order regulation playing card sign of other secondary symbols that comprise the first secondary symbols.

20. according to the described many sheet playing cards of claim 1, wherein second group of game rule counted the value of the various combinations of regulation playing card sign according to the playing card of being collected that on second of playing card, have the secondary symbol of coupling.

21. according to the described many sheet playing cards of claim 1, wherein second group of game rule is according to the value of the various combinations of passing through the represented determined accumulated value regulation of the value addition playing card sign of secondary symbol on second with each playing card of a playing card collective.

22. according to the described many sheet playing cards of claim 1, wherein two sheet playing cards in many sheet playing cards have identical sign.

23. the secondary playing card of the one-tenth that is used to make a bet, every sheet playing card comprises:

Have at least the first main symbol and the second main symbol first; The first main symbol is to comprise 2,3,4,5,6,7,8,9,10, select the standard playing card rank symbols of J, Q, K and A from one group; And the second main symbol is from playing card pip red heart, plum blossom, square and the spade of one group of standard, to select, and the first corresponding playing card sign is represented in the first main symbol on every sheet playing card and the combination of the second main symbol; And

Have second of at least the first secondary symbol; The first secondary symbol on second is selected from the first secondary symbols; The first secondary symbol on second of playing card is to distinguish from the first main symbol and the second main symbol on first of playing card, and each the first secondary symbol in the first secondary symbols is represented the second corresponding playing card sign according to one group of game rule.

24. according to the secondary playing card of the described one-tenth of claim 23, wherein the first secondary symbols comprises the subclass that at least one comprises the standard slot machine symbols of cherry, whippletree and bell.

25. according to the secondary playing card of the described one-tenth of claim 23, wherein the first secondary symbols comprises one group of integer.

26. according to the secondary playing card of the described one-tenth of claim 23, wherein the first secondary symbols comprises a block graphics.

27. according to the secondary playing card of the described one-tenth of claim 23, wherein the first secondary symbols comprises a block graphics, has at least some figures to form at least one picture puzzle in this block graphics.

28. according to the secondary playing card of the described one-tenth of claim 23, the secondary playing card of wherein said one-tenth comprise 52 sheet playing cards, first mask of every sheet playing card has the respective combination of the first main symbol and the second main symbol.

29. a making has the method for the playing card of front and back, said method comprises the following steps:

On the front of playing card, form at least the first main symbol, the first main symbol is taken from the first main symbols, and representes that according to first group of game rule first playing card of playing card identify, and first group of game rule stipulated the value of first playing card sign;

Produce at least the first secondary symbol of taking from the first secondary symbols according to the first seed pseudorandom relevant with the first main symbol; Each first secondary symbol in the first secondary symbols is represented second playing card sign according to second group of game rule, and second group of game rule regulation is independent of the value of second playing card sign of first playing card sign; And

On the back side of playing card, form the first secondary symbol.

30. according to the described method of claim 29, said method also comprises the following steps:

On the front of playing card, form at least the second main symbol, the second main symbol is taken from the second main symbols, and wherein the first main symbols is the playing card seniority among brothers and sisters group of a standard, and the second main symbols is the playing card pattern group of a standard.

31. according to the described method of claim 30, said method also comprises the following steps:

The second seed pseudorandom according to being independent of first seed produces the first and second main symbols.

32., wherein comprise the first secondary symbol is printed on the part at the playing card back side in the step that forms the first secondary symbol on the back side of playing card according to the described method of claim 29.

33. according to the described method of claim 29, wherein the pseudorandom step that produces at least the first secondary symbol take from the first secondary symbols comprises that part produces the said at least the first secondary symbol according to the first main symbol pseudorandom at least.

34. according to the described method of claim 29, the step that wherein produces at least the first secondary symbol take from the first secondary symbols according to the first seed pseudorandom that is not independent of the first main symbol comprise at least part according to the first main symbol and part at least according to the one group probability pseudorandom generation said at least the first secondary symbol of desired combined probability according to first and second groups of game rules regulations.

35. according to the described method of claim 29; Wherein the basis first seed pseudorandom relevant with the first main symbol step that produces at least the first secondary symbol of taking from the first secondary symbols comprises that also pseudorandom produces the first secondary symbol and the second secondary symbol; The second secondary symbol is taken from the second secondary symbols; The combination of the first and second secondary symbols is represented playing card signs according to second group of game rule, and wherein the first secondary symbols comprises the playing card seniority among brothers and sisters of one group of standard and the second secondary symbols comprises the playing card pattern of one group of standard.

36. according to the described method of claim 35; Wherein, The second main symbol on the playing card is under the situation of one of red heart and square; The step that forms the first and second main symbols comprises with first kind of color to be printed, and is under the situation of one of plum blossom and spade at the second main symbol on the playing card, and the step that forms the first and second main symbols comprises with second kind of color printing; And be under the situation of one of red heart and square at the second secondary symbol on the playing card; The step that forms the first and second secondary symbols comprises with second kind of color to be printed, and is under the situation of one of plum blossom and spade at the second secondary symbol on the playing card, and the step that forms the first and second secondary symbols comprises with first kind of color printing.

37. according to the method for claim 29, said method also comprises the following steps:

From printer, take out playing card behind the symbol in forming the first main symbol and the first secondary symbol;

Before another symbol in forming the first main symbol and the first secondary symbol playing card are inserted printer again.

38., after wherein the first main symbol and the first secondary symbol all form, from symbol-forming mechanism, take out playing card according to the described method of claim 29.

39. an equipment of making playing card, said equipment comprises:

Casing;

Pass through the media access that casing extends, the playing card blank transmits along this media access;

At least one next-door neighbour's media access and quilt connect to receive the printhead of print data, are used for to printing along the playing card blank of media access through printhead; And

At least one processor; Be configured to pseudorandom and produce several first secondary identifiers at least; Each first secondary identifier is corresponding with the first secondary symbol separately; The first secondary symbol is taken from the first secondary symbols; Wherein said at least one processor is connected the expression first secondary symbol to be provided and to represent the print data of several first main symbols at least; The first main symbol is taken from the first main symbols; Said at least one processor is configured to make printhead one of first secondary symbol to be printed on the back side of playing card blank and one of first main symbol is printed on the front of playing card blank, and wherein each the main symbol in the first main symbols is represented a playing card sign according to first group of game rule, and wherein said at least one processor uses first seed relevant with the corresponding first main symbol to come pseudorandom to produce the corresponding first secondary symbol; The value of the various combinations of first group of game rule regulation playing card sign, and each the secondary symbol in the first secondary symbols is represented a playing card sign according to second group of game rule.

40. according to the described equipment of claim 39, wherein processor further is configured to first primary identifier that pseudorandom produces each first main symbol of expression of at least the first quantity.

41. according to the described equipment of claim 39, wherein processor further is configured to pseudorandom and is produced the expression first main symbol of at least the first quantity and the primary identifier of each combination of the second main symbol of taking from the second main symbols.

42. according to the described equipment of claim 39, said equipment also comprises:

At least one relative first print head configuration is at second printhead of the opposite side of media access, is used for that relative with first printhead of playing card blank simultaneously printed.

43. a making has the method for the playing card of front and back; The front has the first main symbol of taking from the first main symbols and the second main symbol of taking from the second main symbols; The first and second main symbols are printed on the front of playing card and according to first group of game rule in advance representes first playing card sign; First group of game rule stipulated the value of first playing card sign, and said method comprises the following steps:

Pseudorandom produces at least the first secondary symbol of taking from the first secondary symbols; At least the first main symbol on the front of the first secondary symbol and playing card is relevant; Each secondary symbol in the first secondary symbols is represented second playing card sign according to second group of game rule, and second group of game rule stipulated the value of second playing card sign; And

On the back side of playing card, form the first secondary symbol.

44. according to the described method of claim 43; Wherein the first main symbols is the playing card seniority among brothers and sisters of one group of standard and the second main symbols is the playing card pattern of one group of standard; And wherein the pseudorandom step that produces at least the first secondary symbol take from the first secondary symbols comprises that pseudorandom produces the first secondary symbol of at least one subclass of taking from the standard slot machine symbols, and wherein the standard slot machine symbols comprises cherry, whippletree and bell at least.

45. according to the described method of claim 43; Wherein the pseudorandom step that produces at least the first secondary symbol take from the first secondary symbols comprises: part is according in the first and second main symbols on the front of playing card at least one at least, utilizes weighting and pseudorandom produces the first secondary symbol.

46. one kind with the equipment of making playing card through the playing card blank of printing in advance; Have respectively first symbol and second symbol of selecting from the playing card pip of the playing card rank symbols of one group of standard and one group of standard through the playing card blank of printing in advance, said equipment comprises:

Casing;

Pass through the media access that casing extends, the playing card blank transmits along this media access;

At least one next-door neighbour's media access and quilt connect to receive the printhead of print data, are used for to printing along the playing card blank of media access through printhead; And

At least one processor; The relevant seed pseudorandom of first symbol that is configured to have on basis and the playing card blank produces several first secondary identifiers at least; Each first secondary identifier is corresponding with the first secondary symbol separately; The first secondary symbol is taken from the first secondary symbols, and wherein said at least one processor is connected so that the print data of the expression first secondary symbol to be provided, and makes printhead that the first secondary symbol is printed on the back side of playing card blank.

47. according to the described equipment of claim 46, wherein said at least one processor comprises the first processor and second processor that is configured to provide the print data of representing the first secondary symbol of the identifier that is configured to pseudorandom generation at least the first quantity.

48. an equipment of making playing card, said equipment comprises:

Pseudorandom produces the device of several first secondary identifiers at least;

With these first secondary identifiers and the related device of the first secondary symbol, the first secondary symbol is taken from the first secondary symbols, and each the secondary symbol in the first secondary symbols is represented a playing card sign according to one group of game rule; And

The first secondary symbol is printed to the device on the back side of playing card blank; The front of playing card blank has the first main symbol and the second main symbol; The first and second main symbols are taken from the playing card seniority among brothers and sisters of one group of standard and the playing card pattern of one group of standard respectively, and wherein the first secondary symbol is relevant with the first main symbol.

49. according to the described equipment of claim 48, said equipment also comprises:

Pseudorandom produces the device of first primary identifier;

With first primary identifier and the related device of the first main symbol; And

The first main symbol is printed to the device on the front of playing card blank.

50. according to the described equipment of claim 49, it is relevant with first primary identifier that wherein pseudorandom produces the device of the first secondary identifier.

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