JP2007334798A - Card by which code composition is possible, card reader and game play device using the card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a card, a card reader and a game play device by which mutually different codes are read, not only a code expressed from a plurality of binary bits but a code expressed from a plurality of multiple bits is created and codes constituting large-size data are composed by piling up one card facing front and back or piling up a plurality of same or different kinds of cards. <P>SOLUTION: A two-dimensional code is formed in a code printing area 4 constituted of a transparent member at a part of the card 1. A code formation part of the two-dimensional code is a translucent color and expressed by many colors. Since the code printing area 4 is a light transmitting part, it is also read from the back and when the card is loaded by turning the back upward, a different code is formed. In addition, a different code is further formed by piling up the same or different kinds of cards. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a card capable of synthesizing a two-dimensional code and the like, a reading device for reading the code of the card, and a game play device using the card.

  In a card game linked with a general computer game, a bar code or two-dimensional code representing information of each game card printed on the card has information for identifying the card on which the code is printed. When the reading device reads the code, information corresponding to the read code is selected internally. The selected information corresponds one-to-one with respect to the card on which the read code is printed. That is, a code that can be read by one card has been specified for that card.

Therefore, the Applicant can express another information by using one card upside down, and further having another meaning by stacking multiple cards and reading them into the device. We examined whether a card that can generate a two-dimensional code or the like, which cannot be realized with a single conventional card, can be realized.
As a method that can obtain substantially the same effect as described above, it can be realized to some extent by continuously reading a plurality of cards or providing a plurality of reading devices in the apparatus. This is not only troublesome, but also has the disadvantage of increasing the scale of the apparatus.

Therefore, a game card has been proposed as a device that reads a plurality of cards in a superimposed manner (Patent Document 1).
In this proposal, a card having a code consisting of a binary data group of a plurality of bits is bundled with light-sensitive ink on the thickness portion of each card, and light is applied to the end face of the card bundle to which these codes are attached. The light emitted in response to the irradiated light is captured and read by an image sensor and collated with a pre-stored code pattern to read the code of each card. In order not to be confused with overlapping cards, all cards are printed with a black border on the surface, and the end surfaces of the cards are white as the card paper material.

For this reason, when optically reading multiple cards, there is a black border on the card surface that is white, which is the color of the card end face material. Even if the cards are overlapped, the ID can be identified for each card.
This proposal is to optically read a plurality of cards at the same time in the thickness direction to obtain identification data for each card. Even if a large number of cards are stacked, they are read in a stacked state and differ. It does not obtain semantic identification data.
JP 2004-261603 A Japanese Patent Application No. 2006-083642

  Further, the applicant of the present application has proposed a structure of an information card that can obtain different data when one sheet is read, when two sheets are read, and when another three sheets are read (Japanese Patent Application 2006). -083642), but this proposal adds data for the second card when the second card is added to the data corresponding to the first card, and adds a third data when the third card is added. It does not create data that is completely different from the case of a single card.

It is an object of the present invention to read out different codes by stacking a plurality of cards of the same type or different types, with only one code being expressed from a plurality of binary bits. In addition to this, it is an object of the present invention to provide a card capable of synthesizing codes constituting large data by creating a code that can be expressed from a plurality of bits of multiple values.
Another object of the present invention is to provide a code reading device that reads a code created by one or a plurality of cards and recognizes code information.
Still another object of the present invention is to provide a game play device provided with the code reading device.

In order to achieve the above object, claim 1 of the present invention is a card having a code and optically reading the code by a reading device, wherein the code writing area for writing the code is composed of a light transmitting member. The code forming portion attached to the light transmitting member is formed in black or in one of a plurality of colors prepared in advance, and one card is faced up to the reader. The codes in the code entry area form different codes when they are installed on the card, when they are installed face down, and when a plurality of cards of the same type or different types are installed.
According to a second aspect of the present invention, in the first aspect of the invention, the code forming portion to which the color is attached is configured by a color filter that transmits a predetermined color, and a plurality of cards of the same type or different types are stacked. The code forming unit on which the color filters overlap forms a color different from the color at the time of one card.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the code is a two-dimensional code.
According to a fourth aspect of the present invention, there is provided a card mounting portion on which the card capable of synthesizing the code according to the first, second, or third aspect is mounted face-up, back-facing, and a plurality of cards stacked, and the code of the mounted card A reading unit that optically reads an entry area, and a color determination processing unit that determines a read color when the code read by the reading unit is a code expressed in color.
A fifth aspect of the present invention includes the card reading device according to the fourth aspect of the invention, and further includes game processing means for controlling the game execution by incorporating information based on the card code read from the code reading device into the game. It is characterized by that.

According to claim 1, different codes can be obtained by stacking a single sheet face up, face down, and a large number of sheets, and if there are many types of colors prepared in advance, it has a numerical level of that number, Can create code for large data.
According to the second aspect, when the number of cards is one, the color of the code forming portion is the color of the color filter. However, since the color filters transmit light, different colors are formed when a plurality of cards are overlapped. . For example, if the color filter that passes green overlaps the same code forming portion by overlapping the code forming portion of the color filter that passes red and the second card, the color becomes yellow. If each color is made to correspond to multiple values, a lot of card information can be obtained as compared with the case of binary values.
Further, when a large number of cards are stacked and the code forming part of the color filter overlaps with the same color or the code forming part of another color filter, a different color is obtained. However, if the cards are stacked more than a predetermined number, light hardly passes, so that the color of brightness below a certain level is determined to be black.
According to claim 4, when a large number of cards are stacked, various colors are obtained. When determining the color, for example, the frequency region from red to blue is divided at a predetermined interval, and the signal components detected by the code forming unit are separated. The color can be determined depending on which of the divided frequency regions most belong to.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing an embodiment of a code synthesis card according to the present invention, where (a) is a diagram showing the card front side, (b) is a diagram showing the card back side, and (c) is a cross-sectional view along the line AA of the card. is there.
In this example, a two-dimensional code is used. In addition to this, a bar code or another type of code can be used.
The card 1 is mainly composed of a title entry area 2, a card symbol description area 3, and a code printing area 4. “Chupacabra” is written in the title entry area 2, and the face of the monster is printed in the card symbol description area 3.
The code printing area 4 is composed of a light transmitting member, and a two-dimensional code is printed on the code printing area 4. The code forming portion, ie, the code printing piece 5 that forms the two-dimensional code, is a translucent color filter and can transmit light. A reference mark 7 of a two-dimensional code is entered in the upper left.

There is a card type entry area 6 above the back side of the card 1, “Biological King, Life King” is described, and the code printing area 4 is transparent below the back side.
Accordingly, the two-dimensional code in the code printing area 4 seen from the back side is seen as being reversed with respect to the two-dimensional code seen from the front side. When the reference mark 7 is rotated to the front side position, the two-dimensional code read from the back side Is different from the two-dimensional code read from the front side.
As shown in the AA sectional view of (c), when the card is placed face up, light is transmitted in the direction indicated by arrow 8, and when the card is placed face down, it is opposite to arrow 8. Light is transmitted and read in the direction indicated by the direction arrow 9.

FIGS. 2A and 2B are diagrams for explaining the reading state of a card. FIG. 2A shows a reading state of a two-dimensional code of one card, FIG. 2B shows a reading state of a two-dimensional code of another card, c) shows reading states when the cards (a) and (b) are stacked.
The two-dimensional codes in the states (a), (b) and (c) are different codes.
In FIG. 2, the color filters forming the code printing segment of the two-dimensional code are red for horizontal lines, green for vertical lines, blue for diagonal lines, magenta for horizontal lines + diagonal lines, yellow for horizontal lines + vertical lines, and cyan for vertical lines + Each is indicated by diagonal lines.
The code example (a) includes a red filter, a blue filter, and a green filter. The code example (b) includes a green filter and a blue filter. In the code example of (c), the non-overlapping color filters in (a) and (b) are the same color, and the overlapping part is a magenta, yellow or cyan filter, and (a) and (b) A completely different code is formed.

3 is a cross-sectional view taken along the lines BB, CC, and DD of FIG.
The BB cross-sectional position of the two-dimensional code in FIG. 2 is composed of a light transmitting portion without a red filter and a color filter, and the BB cross-sectional position is composed of a light transmitting portion without a green filter, a blue filter, and a color filter. Has been. The DD cross-sectional position where two cards are stacked is composed of a light transmitting portion without a yellow filter, a green filter, a blue filter, and a color filter.
In this way, for the code printing pieces that can be expressed in six colors, each color is associated with a different level value as shown in FIG. Red is associated with L ₁ level, green is associated with L ₂ level, blue is associated with L ₃ level, magenta is associated with L ₄ level, yellow is associated with L ₅ level, and cyan is associated with L ₆ level. In this way, each color is expressed in multiple values so that more card information can be expressed as compared with binary display.

FIG. 5 is a diagram for explaining the details of the card reader according to the present invention.
The card reading device 30 includes a memory unit 20, a bus 28, a CPU 21, an optical reading unit 23, and a reading control unit 22.
The optical reading unit 23 has a card placement unit 26 on which a card 27 having the same code print area configuration described in FIG. 1 can be placed face up, face down, or a large number of cards can be stacked.
When cards 27 are placed face-up, face-down, or a large number of cards 27 are placed on the card placement unit 26, the entire code printing area of the card 27 is scanned by the optical scanning unit 28, and the scanned light passes through the through holes of the card placement unit 26. 25, the light detecting unit 29 detects the light passing through each code printed piece of the card.

When the card 27 is placed on the optical reading unit 23 and an operation for instructing reading is performed by the user, the reading control unit 22 controls the optical scanning unit 28 to start optical scanning, and is detected by the light detection unit 29. A signal (a signal passing through each code printing piece) is transferred to the CPU 21.
The CPU 21 includes functions of a two-dimensional code recognition unit 21a, a color determination processing unit 21b, and a color-level conversion unit 21c. The signal of each printing piece transferred to the CPU 21 is transferred to the color determination processing unit 21b. The color determination processing unit 21b extracts a frequency component of the signal, analyzes the extracted frequency component, and selects a frequency region in which distribution is the largest. The color is determined by specifying.
For example, when the distribution within a predetermined wavelength range centering on 540 nm (for example, the wavelength range of 30 nm before and after 540 nm) reaches 50% or more, it is determined as yellow. In this manner, for example, wavelength ranges corresponding to six colors are determined, and a color is determined by determining which wavelength range is included.

  The memory unit 20 stores a color-level conversion table 20a that displays a level value for each color. The color-level conversion unit 21c compares the determined color with the color-level conversion table 20a and associates the level with the color of each code print piece. The two-dimensional code recognition unit 21a can recognize the code from the obtained multi-value level of each code printing segment of the read code, and obtain information that the two-dimensional code means.

FIG. 6 is a block diagram for explaining details of the game play apparatus according to the present invention.
The card reading device 30 is incorporated in the game play device main body, and the card reading information (information recognizing the two-dimensional code) placed on the card reading device 30 by the player is sent to the game processing unit 32. Here, the card reading information is, for example, information that it is a XXsaurus and is good at XX attacks, and a dinosaur battle game is started or performed in the game processing unit 32. For example, by operating the operation unit 31, a OOsaurus can appear in the game in a predetermined scene. When the game processing unit 32 receives the information of XXsaurus who is good at XX attacks, the game processing unit 32 reads out data such as the characters and attributes of the XXsaurus stored in the memory unit 34 and performs image processing. Is displayed on the display unit 33.
The player can control the behavior of the OOsaurus by operating the operation unit 31 so that the game processing unit 32 performs processing based on the signal.

  In this way, the game play device incorporating the card reader 30 can input a different two-dimensional code or the like that is more than the number of the plurality of cards. In addition, since each code printing piece can be expressed in multiple values by color, more card information can be used in the game play device with fewer cards.

In the above embodiment, the example in which the code forming unit of the two-dimensional code is expressed by the six color filters has been described. However, the number of colors is not limited to six colors. You may express with many colors. Further, the case where two cards are stacked has been described, but three, four, or more may be stacked. However, since the light transmittance of the color filter portion decreases when a large number of cards are stacked, the color determination unit can also determine that this is black when the predetermined darkness (lightness is below a predetermined value). . Further, if the configuration in which the code forming part is black or a light transmitting part is adopted, the code can be expressed only in binary. In such a case, the color determination process is unnecessary, and the code is recognized as it is. In the case of black, the code forming unit does not transmit, so that the card reader is configured to detect the reflected light from the code surface.
Further, the color code forming portion may be formed of a member that reflects light instead of a member that transmits light. In such a case, the code reader needs to be configured to detect light reflected by applying light to the code surface. In such a case, however, the color does not change even if the colored code forming portions are overlapped.

  Used in card game machines installed at event venues and game centers.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating the external appearance of the card | curd which can carry out the code | synthesize | combination by this invention, (a) is a figure which shows the front side of a card, (b) is a figure which shows the back side of a card, (c) is AA cross section of a card | curd FIG. It is a figure for demonstrating the reading state of a card | curd, (a) is the reading state of the two-dimensional code of one card | curd, (b) is the reading state of the two-dimensional code of another card | curd, (c) is ( The reading states when the cards a) and (b) are stacked are shown. It is BB, CC, and DD sectional drawing of FIG. It is a figure for demonstrating the relationship of the level with respect to the color of the code | cord | chord formation part which forms a code | cord | chord. It is a figure for demonstrating the detail of the card reader by this invention. It is a block diagram for demonstrating the detail of the game play apparatus by this invention.

Explanation of symbols

1, 11, 12, 27 cards
2 Title entry area
3 Card design area
4 Code printing area
5, 5a, 5b, 5c Print element (color filter)
6 Card type entry area 20, 34 Memory section
21 CPU
DESCRIPTION OF SYMBOLS 22 Reading control part 23 Optical reading part 25 Through-hole 26 Card mounting part 28 Optical scanning part 29 Optical detection part 30 Card reader 31 Operation part 32 Game processing part 33 Display part

Claims (5)

A card having a code and having the reader optically read the code,
The code entry area for entering the code is composed of a light transmitting member,
The cord forming portion attached to the light transmitting member is formed in black, or formed in one color among a plurality of types of colors prepared in advance,
When one card is installed face up in the reader, when it is installed face down, and when a plurality of cards of the same type or different types are installed in piles, the codes in the code entry area are different from each other. A code synthesizable card characterized by forming. The code forming portion to which the color is attached is configured by a color filter that transmits a predetermined color,
2. The code composition according to claim 1, wherein the code forming unit in which the color filters are overlapped by overlapping a plurality of cards of the same type or different types forms a color different from the color at the time of one card. Card.   3. The code synthesizable card according to claim 1, wherein the code is a two-dimensional code. A card reading section for mounting the code-synthesizable card according to claim 1, 2 or 3, face-up, face-down, and a plurality of stacked cards, and optically reading a code entry area of the card mounted And
A card reading apparatus comprising color determination processing means for determining a read color when the code read by the reading unit is a code expressed in color. A card reader according to claim 4,
A game play apparatus comprising game processing means for controlling game execution by incorporating information based on a card code read from the code reading apparatus into a game.

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