KR100608546B1 - Method and apparatus for remote control of digital television - Google Patents

Abstract

The present invention provides a method for controlling a screen of a digital television in a remote control system including a transmitter, a receiver, a screen contact recognizer, and a display, wherein the receiver receives a compressed video signal from the digital television, the compressed video signal Displaying on the display unit, when an event according to a user input is generated on the displayed screen, the screen contact recognition unit recognizing a position where the event is generated according to the screen, and detecting the recognized event occurrence position. And transmitting from the transmitter to the digital television, if the event does not occur due to a user input on the displayed screen for a certain period of time, stopping the display, and the screen contact recognition unit relative position according to the user input. By Includes a method for controlling the display of the digital television, it characterized in that to recognize a group event.

Remote controller, remote control, remote control unit

Description

Method and Apparatus for Remote Control of Digital Television {Method and Apparatus for remote controling digital television}             

1 shows a radio control device for controlling an existing digital television compared with one preferred embodiment of the present invention.

2 is a diagram schematically showing the appearance of an apparatus for remotely controlling a digital television according to a preferred embodiment of the present invention.

Figure 3 is a block diagram showing a schematic configuration of a remote control device according to an embodiment of the present invention.

4 is a block diagram showing a procedure of using a remote control device of a digital television according to a preferred embodiment of the present invention.

5 is a block diagram illustrating a change from a touch screen to a touch pad of a remote control device according to an exemplary embodiment of the present invention.

Figure 6 is a block diagram showing a case of manually changing the touch screen and the touch pad of the remote control device according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

301: control unit

303: transceiver

305: memory

307: display unit

309: screen contact recognition unit

311: keypad recognition unit

The present invention relates to a method and apparatus for remote control of a digital television.

Digital television refers to a system technology that digitally processes everything, including video, audio, and data, and then transmits it based on a digital transmission method. Digital processing refers to the conversion of analog signals into digital signals consisting of zeros and ones using a high degree of digital technology. The converted signal is then compressed with other information and then transmitted by digital transmission. The transmitted signal is converted back to the original video and audio by the receiver. Digital televisions using the above-described method have various advantages, but in particular, there is an advantage in that they can provide a broadcast having bidirectionality.

Accordingly, the viewer of the digital television may be actively engaged in broadcasting through the screen of the digital television.

However, the wireless control device of the digital television so far has a disadvantage that the screen selection or menu selection for the active participation of such viewers is quite inconvenient.

1 is a view showing a wireless control device for controlling an existing digital television compared to a preferred embodiment of the present invention.

Referring to FIG. 1, the digital television 101 may be controlled by the existing radio controller 103. The control device 103 generally communicates with the digital television 101 using infrared rays, but other frequencies may be used.

The wireless control device 103 that controls the digital television 101 is different from the conventional wireless control device of a conventional television. When the digital television 101 receives an interactive service, the screen of the digital television 101 is displayed. It may happen that the menu that appears on the screen is properly selected. In this case, the arrow 105 that appears on the screen of the digital television must be properly controlled by the radio control device 103 to accurately select a menu that appears on the screen.

In general, the conventional radio control device 103 has a direction key 107 to move the arrow in case of this case, but because of the nature of the television viewers are relatively far from the television it is not easy to control the arrow with the direction key There are disadvantages.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above problems, and an object thereof is to provide a method and apparatus for remotely controlling a digital television.

Another object of the present invention is to provide a method and apparatus for remotely controlling a digital television using a remote control device including a touch screen.

In order to achieve the above objects, according to an aspect of the present invention, a method for controlling a screen of a digital television in a remote control system comprising a transmitter, a receiver, a screen contact recognition unit, a display unit, the digital television at the receiver Receiving a compressed video signal from the computer; Displaying the received compressed video signal on a display unit; When an event according to a user input occurs on a screen displayed by the display unit, the screen contact recognition unit recognizing a position where an event according to the user input occurs corresponding to a position on a screen of the display unit; And transmitting the recognized event occurrence position from the transmitter to the digital television, wherein the display stops displaying the compressed video signal when there is no occurrence of an event by a user input for a predetermined period of time on the displayed screen. A method for controlling a screen of a digital television can be provided.
Here, the receiver may be a device capable of receiving at least one wireless signal of an infrared signal, a Bluetooth signal, and a WLAN signal.
In addition, the transmitter may transmit a signal encoded to receive only the digital television corresponding to the transmitter.
The remote control system may include a remote controller using general infrared rays and may be included in at least one of a portable terminal, a PDA, a notebook computer, and a DMB terminal.
In addition, the compressed video signal may be optimized to be displayed on the display unit of the remote control system.
According to another aspect of the present invention, there is provided a remote control system for controlling a screen of a digital television, including a transmitter, a receiver, a screen contact recognition unit, and a display, comprising: means for receiving a compressed video signal from the digital television at the receiver; Means for displaying the received compressed video signal on a display unit; Means for recognizing a position where an event according to the user input occurs in response to a position on the screen of the display unit, when an event according to a user input occurs on a screen displayed by the display unit; And means for transmitting the recognized event occurrence position from the transmitter to the digital television, wherein the display stops displaying the compressed video signal when there is no occurrence of an event by a user input for a predetermined period of time on the displayed screen. It is possible to provide a remote control system characterized in that.
Here, the receiver may be a device capable of receiving at least one wireless signal of an infrared signal, a Bluetooth signal, and a WLAN signal.
In addition, the transmitter may transmit a signal encoded to receive only the digital television corresponding to the transmitter.
The remote control system may include a remote controller using general infrared rays and may be included in at least one of a portable terminal, a PDA, a notebook computer, and a DMB terminal.
In addition, the compressed video signal may be optimized to be displayed on the display unit of the remote control system.

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Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a diagram schematically illustrating an appearance of an apparatus for remotely controlling a digital television according to an exemplary embodiment of the present invention.

The device 201 for remotely controlling the digital television may have a similar appearance to a remote control device of a general television, but not only a general remote control device having the above appearance, but also other mobile phones or PDAs having the remote control function. , Notebooks, handheld PCs, mobile phones, and the like.

The remote control device has a touch screen 203 as described above compared to the conventional remote control device. The touch screen 203 is displayed by receiving an image signal from the digital television controlled by the remote control device 201. When the selection is made on the displayed screen, the remote control device selects the same place on the digital television according to the selection. Make a choice.

The remote control also has a select button (205). When using the functions of a general television, that is, when not using the bidirectional function of a digital television, the remote control device needs only a function almost similar to that of watching a general television, so that a selection switch can be provided for convenient channel selection. have.

On the other hand, even when the bidirectional function is not used as described above, if the touch screen screen is continuously displayed, power consumption may be unnecessary as well as inconvenience of using a remote control device. Therefore, when the touch screen is not used for a predetermined time, the display may be automatically stopped, and the display of the touch screen may be stopped by the manipulation of a key. But even if the display freezes, you may suddenly have to choose from digital television. Since it is inconvenient and time consuming to display the touch screen again for a simple selection, when the screen display of the touch screen is interrupted, the touch screen screen may be changed to a touch pad, and thus selection may be made without a screen display.

3 is a block diagram showing a schematic configuration of a remote control apparatus according to an embodiment of the present invention.

Referring to FIG. 3, the controller 301 is a device that manages overall operations of the remote control apparatus. In particular, when selecting a screen displayed on the touch screen and moving the arrow of the digital television when the touch screen is turned off, the coordinates of event recognition may be different, and thus the coordinate change of the event recognition may be performed.

The transceiver 303 is a device for the remote control device to transmit and receive a digital television signal. In addition to transmitting and receiving a control signal of the remote control device, it is responsible for transmitting and receiving an image signal optimized for the screen displayed on the touch screen of the remote control device from the digital television.

The memory 305 is responsible for storing a signal used in the remote control device. In addition to storing general control signals, the memory 305 also stores signals displayed on the touch screen.

The display unit 307 is responsible for displaying the compressed video signal received from the transceiver unit 303 on the remote control device. The screen displayed by the display unit 307 is similar to the screen displayed by the digital television, but the display unit of the remote control system is displayed on the display unit in the digital television because the resolution and expressive power are different from those of the digital television. Compresses and converts the signal so as to be suitable for the following, and receives the signal from the transceiver of the remote control device and outputs the signal from the display unit.

The screen contact recognition unit 309 is a device associated with the display unit and detects a contact event when a specific portion of the display unit contacts, and converts the position into an electrical signal. The screen contact recognition unit may be a light film, an electrical stimulus, or a means for sensing a pressure that spreads thinly on the upper portion of the display, and converts the position of the physical contact stimulus detected by the various means into an electrical signal to control the controller. send.

The keypad recognition unit 311 recognizes a selection signal of a keypad mounted on the remote control device and transmits the signal to the controller. In the case of general channel selection or other commonly used number selection, the keypad recognition unit 311 may be used because it is more convenient to select through the existing keypad than the selection through the touch screen or the touch pad.

4 is a block diagram showing a procedure of using a remote control device of a digital television according to an embodiment of the present invention.

4, first, the digital television receives a broadcast signal (step 401). The digital television then projects the broadcast signal onto the screen of the digital television and simultaneously converts the signal to the appropriate screen on the display of the remote control device (step 403). Thereafter, the display unit transmits the compressed signal converted to the appropriate screen to the remote controller (step 405). Thereafter, the transceiver of the remote control device receives the sent signal (step 407), and the display unit displays the compressed signal in accordance with the signal (step 409). Then, if the owner of the remote control device sees the displayed screen and selects the appropriate menu (step 411), the screen contact recognition unit of the remote control unit recognizes the contact and the coordinates are calculated by the controller to calculate the digital. Transmit to television (step 415). The calculated coordinate signal is then received by the digital television (step 415). The digital television then calculates the coordinate signal to appropriately select a position corresponding to the contact position of the display portion of the remote control device in the actual screen size of the digital television to generate a selection event there and then display the screen of the digital television. Conversion takes place (step 417).

5 is a block diagram illustrating a change from a touch screen to a touch pad of a remote control apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 5, first, a screen is displayed on a display unit of a remote control apparatus according to the present invention (step 501). In this case, when the user selects a screen (step 503), the screen contact recognition unit of the remote control apparatus recognizes the coordinates and transmits a signal to the controller of the remote control apparatus (step 505). Compute with appropriate absolute coordinates (step 507). If the screen selection signal is not input for a predetermined time (step 509), the control unit causes the display unit to stop projecting the screen after a predetermined time (step 511). If is selected, the screen contact recognition unit of the remote control unit recognizes the coordinates and transmits a signal to the control unit of the remote control unit (step 513). The control unit then calculates the signal in a relative coordinate suitable for the touch screen (step 515). Thereafter, when the selection signal selects the touch screen (step 517) in the keypad recognition unit of the remote control device, the screen is displayed again.

6 is a block diagram illustrating a case where a touch screen and a touch pad of a remote control apparatus according to an exemplary embodiment of the present invention are manually changed.

Referring to FIG. 6, when the key for controlling the operation of the touch screen function existing in the keypad of the remote controller is turned on (step 601), the touch screen projects a screen on the display unit so that a screen such as a screen of a digital television is touch screen. Projected on the screen (step 603), the controller then recognizes the touch of the touch screen transmitted from the screen touch recognition unit as absolute coordinates and the function of the touch screen is applied (step 605). On the other hand, when the key for controlling the operation of the touch screen function existing in the keypad of the remote controller is turned off, the touch screen stops projecting the screen on the display unit (step 607), and then the control unit touches the screen contact recognition unit. The touch signal on the screen is recognized as relative coordinates to apply the function of the touch pad (step 605).

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

According to the present invention, a method and apparatus for remotely controlling a digital television can be provided.

In addition, according to the present invention, it is possible to provide a method and apparatus for remotely controlling a digital television using a remote control device including a touch screen.

Claims (12)

A method for controlling a screen of a digital television in a remote control system including a transmitter, a receiver, a screen contact recognition unit, and a display unit, Receiving a compressed video signal from a digital television by the receiving unit; Displaying the received compressed video signal on a display unit; When an event according to a user input occurs on a screen displayed by the display unit, the screen contact recognition unit recognizing a position where an event according to the user input occurs corresponding to a position on a screen of the display unit; And Transmitting the recognized event occurrence position from the transmitter to a digital television Including but not limited to: The display unit stops displaying the compressed video signal when no event occurs due to a user input for a predetermined period of time on the displayed screen. Method for controlling the screen of a digital television, characterized in that. The method of claim 1, The receiver is a device capable of receiving at least one wireless signal of an infrared signal, a Bluetooth signal, and a WLAN signal. Method for controlling the screen of a digital television, characterized in that. The method of claim 1, Wherein the transmitter transmits a signal encoded so that only the digital television corresponding to the transmitter is received. Method for controlling the screen of a digital television, characterized in that. delete The method of claim 1, The remote control system includes a remote controller using a general infrared, and may be included in at least one of a mobile terminal, a PDA, a notebook and a DMB terminal. Method for controlling the screen of a digital television, characterized in that. The method of claim 1, The compressed video signal being optimized for display on a display of the remote control system Method for controlling the screen of a digital television, characterized in that. In the remote control system for controlling the screen of the digital television, including a transmitter, a receiver, a screen contact recognition unit, a display unit, Means for receiving a compressed video signal from a digital television at the receiving unit; Means for displaying the received compressed video signal on a display unit; Means for recognizing a position where an event according to the user input occurs in response to a position on the screen of the display unit, when an event according to a user input occurs on a screen displayed by the display unit; And Means for transmitting the recognized event occurrence position from the transmitter to a digital television Including, The display unit stops displaying the compressed video signal when no event occurs due to a user input for a predetermined period of time on the displayed screen. Remote control system characterized in that. The method of claim 7, wherein The receiver is a device capable of receiving at least one wireless signal of an infrared signal, a Bluetooth signal, and a WLAN signal. Remote control system characterized in that. The method of claim 7, wherein Wherein the transmitter transmits a signal encoded so that only the digital television corresponding to the transmitter is received. Remote control system characterized in that. delete The method of claim 7, wherein The remote control system includes a remote controller using a general infrared ray, which may be included in at least one of a mobile terminal, a PDA, a notebook and a DMB terminal. Remote control system characterized in that. The method of claim 7, wherein The compressed video signal being optimized for display on a display of the remote control system Remote control system characterized in that.

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