JP2007027973A - Remote control apparatus and video display system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote control apparatus for a video apparatus that prevents the power of a television receiver from being interrupted due to the operation of an off-timer provided to the television receiver even if an external video source is viewed on the television receiver, and to provide a video display system. <P>SOLUTION: The remote control apparatus 51 for the video apparatus (video recorder) 50 for supplying a video source to the television receiver 10 provided with the non-operation off-timer for interrupting power when receiving no operation signal for a prescribed time includes a control section 54 that allows a signal output section 57 to transmit an operation signal to the video recorder when a key operation section 52 is operated. When the operation signal is given to the video recorder 50, the control section 54 allows the video recorder 50 to wirelessly transmit the operation signal and a prescribed television operation signal to the television receiver 10 so as to release the non-operation off-timer of the television receiver 10. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a remote control device and a video display system, and more particularly to cancellation of an off timer of a television receiver.

For example, when a conventional TV receiver goes to sleep or goes out while watching TV, the power is kept on. For this reason, in order to avoid such a situation, for example, a device having an off timer function for automatically turning off the power when there is no operation for a certain time has been proposed (for example, see Patent Document 1).
JP 2000-36143 A

  However, in recent years, it is often used in place of monitors for viewing video sources such as external digital tuners, video recorders, and DVD players. Since this is not done, the television receiver side is considered to have continued to be in a non-operating state, and there is a problem that the power is turned off due to the off-timer operating even during viewing.

  The present invention has been made to solve such problems, so that even when an external video source is viewed, a situation in which the power is turned off due to the off timer working. An object of the present invention is to provide a remote control device and a video display system for the video equipment.

  A remote control device according to the present invention provides a video device remote control device that provides a video source to a television receiver having a no-operation off timer that turns off power when no operation signal is input for a first predetermined time. , An operation unit for inputting various operation signals, a signal output unit for wirelessly transmitting the operation signals to the video equipment and the television receiver, and output of the operation signals when the operation unit is operated. A control unit that transmits the operation signal to the video device when the operation signal is input to the video device by the signal output unit. The TV operation signal is transmitted wirelessly to the TV receiver by the signal output unit, and the no-operation-off timer of the TV receiver is canceled. To. In the present invention, even the operation signal of the video equipment is wirelessly transmitted to the television receiver as a predetermined television operation signal, and the no-operation off timer of the television receiver is canceled. Therefore, even if the television receiver is not operated, a situation in which the no-operation off timer works and the power is turned off during viewing is avoided.

  In the remote control device according to the present invention, after the control unit has transmitted a second predetermined time (first predetermined time> second predetermined time) after transmitting an operation signal to the television receiver. When an operation signal for the video device is input, the operation signal is wirelessly transmitted to the video device, and a predetermined television operation signal is wirelessly transmitted to the television receiver. In the present invention, the processing when the operation signal of the video equipment is wirelessly transmitted as a predetermined television operation signal is transmitted after the operation signal (including the predetermined television operation signal) is transmitted to the television receiver. 2 is performed when a predetermined time of 2 (first predetermined time> second predetermined time) has elapsed, and the number of times of processing is reduced within a necessary range.

  The remote control device according to the present invention includes a timer for measuring time, and the control unit receives the operation signal of the television receiver and transmits the predetermined television operation signal wirelessly. Restart the time measurement.

  In the remote control device according to the present invention, the control unit compares the measurement time of the timer with the second predetermined time, and transmits the operation signal of the television receiver to determine the second predetermined time. Determine if it has passed.

  In the remote control device according to the present invention, the control unit transmits an operation signal that does not affect normal video display and audio output as the predetermined television operation signal.

  The remote control device according to the present invention is attached to the video equipment and can operate a part of the television receiver, or is applied to the video equipment and the operation of both the television receiver.

  A video display system according to the present invention provides a television receiver having a no-operation off timer that turns off power when no operation signal is input for a first predetermined time, and provides a video source to the television receiver. And a remote control device that transmits operation signals to the video device and the television receiver. The remote control device includes an operation unit that inputs various operation signals, the external device, and a television receiver. A signal output unit that wirelessly transmits an operation signal to a device, and a control unit that causes the signal output unit to transmit the operation signal when the operation unit is operated. After the operation signal is transmitted, the operation signal for the video equipment is input after a second predetermined time (where the first predetermined time> the second predetermined time) has elapsed. In this case, the signal output unit wirelessly transmits a code signal corresponding to the operation signal to the video equipment and wirelessly transmits a predetermined television operation signal to the television receiver. Cancel the no-operation off timer of the TV receiver.

Embodiment 1. FIG.
FIG. 1 is a block diagram showing a configuration of a video display system according to Embodiment 1 of the present invention. In this video display system, a video recorder 50 is connected to the television receiver 10, and the video source of the video recorder 50 can be viewed on the television receiver 10. The video recorder 50 includes a remote control device (hereinafter referred to as a remote control) 51. The remote controller 51 includes a key operation unit 52, a key input processing unit 53, a control unit 54, a timer 55, a remote control code holding unit 56, and a signal output unit 57. When the key operation unit 52 is operated, the key input processing unit 53 outputs an operation signal corresponding to the key operation to the control unit 54. The control unit 54 reads a code signal corresponding to the operation signal from the remote control code holding unit 56 and outputs the code signal to the signal output unit 57. The signal output unit 57 transmits the code signal to the outside using, for example, infrared rays. The video recorder 50 receives the infrared signal and performs various controls. The television receiver 10 also receives the infrared signal for the corresponding operation signal (for example, volume adjustment) and performs control corresponding thereto. Further, when an operation signal for the video recorder 50 is input in a state where the timer 55 measures a predetermined time (second predetermined time), the control unit 54 sends a code signal corresponding to the operation signal to the signal output unit 57. In addition to transmitting a code signal corresponding to a specific television operation signal.

  FIG. 2 is a block diagram showing a configuration of the television receiver 10 of FIG. The television receiver 10 includes a television broadcast receiver 11, an image processing circuit 15, a frame memory (field memory) 16, a video output circuit 17, a display device 18, an audio signal processing circuit 19, an amplifier 20, and a speaker 21. . The television broadcast receiver 11 includes a tuner 12, a demultiplexer 13, and a video signal processing circuit 14.

  The television receiver 10 further includes an external video signal terminal 26 including a composite video signal terminal 22, an S terminal 23, a D terminal 24, and an analog YUV signal terminal 25, and audio signal terminals 27 to 27 corresponding to the video signals, respectively. 30 external audio signal terminal 31, A / V switch 32, video decoder 33, audio decoder 34, remote controller (for TV) 35, receiving unit 36, operation unit 37, interface (IF) 38, off timer 39, power control Unit 40, power supply unit 41, and control unit 42. The control unit 42 includes a CPU 43, a ROM 44 in which programs to be executed by the CPU 43 and fixed data are written, and a RAM 45 that functions as a work area of the CPU 43. The tuner 12, demultiplexer 13, video signal processing circuit 14, audio signal processing circuit 19, image processing circuit 15, receiving unit 36, interface 38, off timer (non-operation off timer) 39, power supply control unit 40 and control unit 42 The entire circuit is controlled by the control unit 42.

  The television broadcast receiver 11 of the television receiver 10 is assumed to be an example for digital broadcasting, for example. When the control unit 42 receives an operation signal from the operation unit 37 via the interface 38 and outputs a channel selection signal based on the operation signal to the tuner 12, a channel corresponding to the channel selection signal in the tuner 12 can be obtained. Is set. An antenna (not shown) connected to the tuner 12 includes a frequency converter. For example, a digital broadcast signal transmitted from a CS (Communication Satellite) is received and the frequency-converted signal is output to the tuner 12. To do. The tuner 12 includes a demodulation circuit, a deinterleave circuit, an error correction circuit, and the like, and performs a process of extracting a signal of a specific frequency from a high frequency digital modulation signal including video / audio data. That is, a process of selecting one from a plurality of transponders for digital broadcasting is performed. The demultiplexer (DEMUX) 13 separates the transport stream into, for example, a moving picture expert group 2 (MPEG2) video stream, an audio stream, and PSI / SI (Program Specific Information / Service Information). The video stream is output to the video signal processing circuit 14 and the audio stream is output to the audio signal processing circuit 19.

  The video signal processing circuit 14 incorporates a video decoder and the like, decodes the input variable length code to obtain a quantization coefficient and a motion vector, performs inverse DCT transform, motion compensation control based on the motion vector, etc. A video signal (digital format RGB or YUV video signal) corresponding to the channel selection signal of the tuner 12 is output to the image processing circuit 15.

  When a video signal corresponding to the terminal (external video source) is input to any one of the composite video signal terminal 22, S terminal 23, D terminal 24, and analog YUV signal terminal 25, the video signal is A. The video signal (decoded RGB video signal / YUV video signal) decoded by the video decoder 33 via the / V switch 32 is output to the image processing circuit 15.

  When the image processing circuit 15 takes in the video signal from the TV broadcast receiving unit 11 or the video decoder 33, the image processing circuit 15 performs a process such as resizing according to the resolution of the display device 18 including a subsequent liquid crystal panel, for example, in the frame memory 16 The image is developed and the video signal of the frame image is output to the video output circuit 17. The video output circuit 17 processes the video signal of the frame image, such as D / A conversion, to drive a display device 18 at the subsequent stage, and the display device 18 displays a video corresponding to the frame image.

  The audio signal processing circuit 19 includes an audio decoder and the like, decodes the input encoded signal to generate an audio signal (audio data), further D / A converts the audio signal, For example, a right (R) sound analog signal and a left (L) sound analog signal are generated and output to the amplifier 20. The amplifier 20 amplifies the analog signals of the right (R) sound and the left (L) sound and outputs the amplified signals to the speaker 21, so that sound can be obtained from the speaker 21. When an audio signal corresponding to the external video signal terminal 31 (27 to 30) corresponding to the external video signal terminal 26 is input to the audio decoder 34 via the A / V switch 32. The audio decoder 34 decodes the audio signal according to the audio signal, and the decoded audio signal is D / A converted, and is output to the amplifier 20 and output from the speaker 21 in the same manner as the audio signal processing circuit 19 described above. Voice is obtained.

  The off-timer 39 resets the measured value every time an operation signal is input via the receiving unit 36 and the interface 38, starts measurement, and when the measured value passes a predetermined time (first predetermined time), The control unit 42 causes the power supply unit 41 to be turned off via the power supply control unit 40.

  As shown in FIG. 1, a video recorder 50 is connected to the television receiver 10, and a video signal and an audio signal are supplied to corresponding terminals of the external video signal terminal 26 and the external audio signal terminal 31. Assume that video corresponding to the video signal from the video recorder 50 is displayed on the display device 18, and audio corresponding to the audio signal from the video recorder 50 is obtained by the speaker 21. In this state, for example, when the remote controller 51 is operated, the video recorder 50 performs control (for example, playback, fast forward, rewind, etc.) according to the operation signal, but the receiving unit 36 of the television receiver 10 also receives the operation signal. If the operation signal is for the television receiver 10, control is performed accordingly. The operation of the remote controller 51 at this time will be described with reference to FIG.

  FIG. 3 is a flowchart showing the operation of the remote controller 51. When the user operates the key operation unit 42, the control unit 54 inputs the operation signal through the key input processing unit 53. When the key input is detected (S11), whether the key input is an internal setting key or not. Is determined (S12). If it is determined whether the key is an internal setting key, an internal setting corresponding to the key input is made (S13). For example, maker / code model setting, TV key selection, transmission timer value setting, etc. are performed. Then, the timer 55 is restarted (S14). That is, the measurement value of the timer 55 is reset and measurement is started again.

  If the key input is not an internal setting key, it is determined whether it is a TV operation key (S15). As a TV operation key, for example, when a volume key (volume adjustment), a channel up / down key, or the like is operated, the TV operation key is determined to be a TV operation key, and the timer 55 is restarted (S16). Then, the code signal corresponding to the operation key is read from the remote control code holding unit 56 and transmitted as an infrared signal from the signal output unit 57 (S17). When the infrared signal is transmitted from the remote controller 51, the receiving unit 36 of the television receiver 10 receives the infrared signal, and when the control unit 42 captures the signal, the off-timer 39 is restarted and the remote controller 51 receives the infrared signal. Control according to the operation signal. For example, when the operation signal is volume adjustment, the amplification degree of the amplifier 20 is adjusted.

  When the key input is neither the internal setting key nor the TV operation key, the control unit 54 of the remote controller 51 determines whether the measurement time of the timer 55 has passed the second predetermined time (S18). If the measurement time of the timer 55 has not passed the predetermined time, the code signal corresponding to the key input is read from the remote control code holding unit 56, and the code signal is transmitted as an infrared signal from the signal output unit 57 (S21). ). The video recorder 50 receives the infrared signal and performs control corresponding to the infrared signal (operation signal).

  When the control unit 54 of the remote controller 51 determines that the measurement time of the timer 55 has passed the second predetermined time, it reads a predetermined TV code signal from the remote control code holding unit 56 and outputs the TV code signal as a signal. An infrared signal is transmitted from the output unit 57 (S19). As the television code signal, for example, “screen display” is transmitted twice in succession, and the normal viewing operation is not affected. When the receiving unit 36 of the television receiver 10 receives the infrared signal and the control unit 42 captures the infrared signal, the time measurement of the off-timer 39 is restarted and the control corresponding to the operation signal from the remote controller 51 (“screen” Display "). By restarting the time measurement of the off-timer 39, even if the television receiver 10 is not operated for a predetermined time, a situation in which the power supply unit 41 is turned off can be avoided.

  After transmitting the television code signal, the control unit 54 of the remote control 51 restarts the time measurement of the timer 55 (S20), reads the code signal corresponding to the key input from the remote control code holding unit 56, and outputs the code signal. It transmits as an infrared signal from the signal output part 57 (S21). The video recorder 50 receives the infrared signal and performs control corresponding to the infrared signal (operation signal).

  As described above, in the first embodiment, even the operation signal of the video recorder 50 is transmitted together with a predetermined television operation signal, and the off-timer 39 of the television receiver 10 is canceled. Even if the receiver is not operated, a situation in which the power is turned off due to the off timer 39 working during viewing is avoided. Further, the processing when the operation signal of the video recorder 50 is transmitted as a predetermined television operation signal is the second predetermined time after the operation signal is transmitted to the television receiver 10 (first predetermined time> second When the predetermined time) elapses, the processing frequency is reduced.

Embodiment 2. FIG.
In the first embodiment described above, the TV receiver has a format for receiving digital broadcasts. However, the TV receiver may have a format for receiving analog broadcasts. Although an example has been described, the present invention is similarly applied to a digital tuner, a DVD player, or the like having a function of providing a video source. Moreover, although the remote controller for a video recorder has been described, the present invention is similarly applied to a general-purpose remote controller that can be applied to both a video recorder and a television receiver. In any case, it is possible to prevent the TV receiver off timer 39 from working and turning off the power by providing the remote control for controlling the video equipment with the function of transmitting the TV code signal as described above.

1 is a block diagram showing a configuration of a video display system according to Embodiment 1 of the present invention. The block diagram which showed the structure of the television receiver of FIG. The flowchart which shows operation | movement of the remote control of FIG.

Explanation of symbols

10 TV receiver, 11 TV broadcast receiver, 12 tuner, 13 demultiplexer, 14 video signal processing circuit, 15 image processing circuit, 16 frame memory, 17 video output circuit, 18 display device, 19 audio signal processing circuit, 20 amplifier , 21 Speaker, 32 A / V switch, 33 Video decoder, 34 Audio decoder, 35 Remote controller, 36 Reception unit, 37 Operation unit, 38 Interface, 39 Off timer, 40 Power supply control unit, 41 Power supply unit, 42 Control unit, 50 Video recorder, 51 remote control, 52 key operation unit, 53 key input processing unit, 54 control unit, 55 timer, 56 remote control code holding unit, 57 signal output unit.

Claims (7)

In a remote control device of a video equipment that provides a video source to a television receiver having a no-operation off timer that turns off the power when no operation signal is input for a first predetermined time,
An operation unit for inputting various operation signals;
A signal output unit for wirelessly transmitting the operation signal to the video equipment and the television receiver;
A control unit that causes the signal output unit to transmit the operation signal when the operation unit is operated,
When an operation signal for the video device is input, the control unit wirelessly transmits the operation signal to the video device by the signal output unit, and sends a predetermined television operation signal to the television receiver. On the other hand, the remote control device is characterized in that the no-operation off timer of the television receiver is canceled by wireless transmission by the signal output unit.   The control unit inputs an operation signal for the video equipment after a second predetermined time (first predetermined time> second predetermined time) has elapsed since the operation signal was transmitted to the television receiver. 2. The remote control device according to claim 1, wherein the operation signal is wirelessly transmitted to the video equipment and a predetermined television operation signal is wirelessly transmitted to the television receiver. . It has a timer that measures time,
The remote control device according to claim 1, wherein the control unit restarts the time measurement of the timer when the operation signal of the television receiver is wirelessly transmitted.   The control unit compares the measured time of the timer with the second predetermined time to determine whether or not a second predetermined time has elapsed since the operation signal of the television receiver was transmitted. The remote control device according to claim 3, wherein   The remote control device according to claim 1, wherein the control unit transmits an operation signal that does not affect normal video display and audio output as the predetermined television operation signal.   6. The video device attached to the video device and capable of operating a part of a television receiver, or applied to both the video device and a television receiver. The remote control device according to any one of the above. A television receiver including a no-operation off timer that turns off the power when no operation signal is input for a first predetermined time;
A video device that provides a video source to the television receiver;
A remote control device that transmits an operation signal to the video equipment and the television receiver,
The remote control device is
An operation unit for inputting various operation signals;
A signal output unit for wirelessly transmitting an operation signal to the external device and the television receiver;
A control unit that causes the signal output unit to transmit the operation signal when the operation unit is operated,
The control unit inputs an operation signal for the video equipment after a second predetermined time (first predetermined time> second predetermined time) has elapsed since the operation signal was transmitted to the television receiver. The signal output unit causes the operation signal to be wirelessly transmitted to the video equipment and a predetermined television operation signal to be wirelessly transmitted to the television receiver. An image display system, wherein a no-operation off timer is canceled.

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