JP2002158889A - Television receiver with remote controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a television receiver with remote controller where a snap shot which is temporarily stored can be viewed without affecting a picture on reception at present. SOLUTION: The remote controller 2 is provided with an LCD display unit 38, a snap shot switch 44 and a snap shot selection switch 45. When the snap shot switch 44 is depressed, picture data on one frame is compressed and stored in the television receiver 1. When the snap shot switch 44 is depressed again, picture data on one frame is compressed and stored again. When the snap selection switch 45 is depressed, the frame which is compressed and stored at first is displayed on the LCD display unit 38. When the snap selection switch 45 is depressed again, the frame which is compressed and stored for the second time is displayed on the LCD display unit 38.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver with a remote control, which has an expanded remote control function.

[0002]

2. Description of the Related Art In television broadcasting, a contact telephone number, a destination address, and the like are displayed in a quiz program, a television shopping program, and the like, and an interested viewer needs to immediately write down the telephone number. There is. However, note papers and pencils are not always placed nearby, and it often happens that you cannot write down the phone number you want to write down. Therefore, in recent years, a television receiver has been developed in which a screen of a television is stored in a memory so that the stored screen can be reproduced when a user desires (see Japanese Patent Application Laid-Open No. 7-30843).

[0003]

However, such a conventional television receiver displays the stored screen instead of the currently broadcast screen when reproducing the stored screen. Therefore, there is a drawback that the screen currently being broadcast cannot be temporarily viewed. The present invention has been made in view of such circumstances, and has as its object to provide a television receiver with a remote control that can view a temporarily stored screen without affecting the screen currently being received. Is to do.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the invention according to claim 1 has the following features.
In a television receiver with a remote control comprising a television receiver and a remote controller for remotely controlling the television receiver, the television receiver includes one frame based on a snapshot instruction signal transmitted from the remote controller. Storage means for storing a video signal, and transmission means for transmitting the video signal in the storage means to the remote control, the remote control is a snapshot switch, and when the snapshot switch is turned on, Transmitting means for transmitting a snapshot instruction signal to the television receiver; receiving means for receiving and demodulating a signal transmitted from the transmitting means of the television receiver; and performing display based on the output of the receiving means. And a display means.

[0005] Further, the invention according to claim 2 is based on claim 1.
In the television receiver with a remote control according to the above, the television receiver, provided with power control means for turning off the power of the unused circuit, the remote control, the power of the unused circuit is turned off The power supply control means is provided. According to a third aspect of the present invention, in the television receiver with remote controller according to the first or second aspect, the television receiver has a compression unit for compressing data in the storage unit. The transmitting means transmits the video signal compressed by the compression means to the remote control, the remote control has decompression means for decompressing the signal output from the receiving means and returning it to the original video signal, The display means performs display based on the output of the decompression means.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the overall configuration of a television receiver with a remote controller according to the embodiment, in which reference numeral 1 denotes a television receiver, 2 denotes a remote controller, and 3 denotes headphones. FIG. 2 is a block diagram illustrating a configuration of the television receiver 1. In this figure, 5 is a receiving antenna, 6 is a first tuner /
RF processing circuit, 7 is a second tuner / RF processing circuit, 8 is an audio signal AS from the output of the first tuner / RF processing circuit 6.
An A / V separation circuit 9 for separating the audio signal AS2 and the video signal VS2 from the output of the second tuner / RF processing circuit 7 and separating the audio signal AS2 and the video signal VS2 from the output of the second tuner / RF processing circuit 7 / V separation circuit. Reference numerals 11 and 12 denote video signals VS output from AV equipment such as an external video deck, respectively.
3 and a terminal to which the audio signal AS3 is applied.

Reference numeral 15 denotes a selector, which outputs a video signal VS1 based on a control signal SWS output from the control unit 20.
To VS3 and outputs it to the video processing circuit 19. Similarly, 16 to 18 are selectors, and the video signals VS1 to VS3 and the audio signal A based on the control signal SWS.
One of S1 to AS3 is selected and output.

[0008] The video processing circuit 19 reproduces a synchronizing signal and an RGB color signal from the video signals VS1 to VS3 supplied through the selector 15, and outputs them to a CRT (CRT) display 27. PS is a power save signal output from the control unit 20, and the power on / off of the video processing circuit 19 is controlled by this signal PS. A /
The D (analog / digital) converter 21 is
The video signals VS1 to VS3 supplied via the selector 16 are converted into digital data in accordance with the control signal SWS from the controller 16 and output to the frame memory 22. The frame memory 22 stores the video data output from the A / D converter 21. The compression circuit 23 reads the data in the frame memory 22 according to the control signal SWS from the control unit 20, compresses the data, and writes the data in the memory 24. In this case, the memory 24 has a capacity to write video data of a plurality of frames. When the supplied video signal is compressed in real time, the frame memory 22 can be omitted. It is also conceivable that the data is stored in the memory 24 without being compressed. However, it is preferable to compress the data to reduce the memory capacity.

The audio processing circuit 26 amplifies the audio signals AS1 to AS3 supplied via the selector 17 and outputs the amplified signals to the speaker 29. The audio processing circuit 32 includes the selector 18
The audio signals AS1 to AS3 supplied via the are converted into digital data, and further encoded (data compressed) according to the MP-3 standard, and output to the wireless transmission unit 28. The power on / off of the audio processing circuits 26 and 32 is controlled by a power save signal PS output from the control unit 20.

Reference numeral 30 denotes an operation switch circuit.
A first video channel selection switch for selecting a channel of a tuner, and a second video channel selection switch for selecting a channel of a second tuner
A video channel selection switch, a volume adjustment switch for adjusting the volume of the audio signal output from the audio processing circuit 26,
A headphone use / non-use selection switch is provided,
The output of each switch is supplied to the control unit 20. Control unit 2
0 is the output of the operation switch circuit 30 and the wireless receiving unit 31
, A control signal SWS is generated based on the output of the control signal SWS, and is output to each unit. In addition, a power save signal PS is generated and output to the circuits 19, 26, and 32 described above. The wireless receiving unit 31
The wireless signal transmitted from the remote controller 2 is received, demodulated, and output to the control unit 20. The wireless transmission unit 28 includes the control unit 20
The data in the memory 24 is read out in accordance with the control signal SWS from the remote controller 2 and transmitted to the remote controller 2 on a carrier wave.
The output of the audio processing circuit 32 is transmitted to the remote controller 2 on a carrier wave. The communication between the wireless receiving unit 31 and the wireless transmitting unit 28 and the remote controller 2 uses wireless communication based on the Bluetooth standard or the IEEE1394 standard.

FIG. 3 is a block diagram showing the configuration of the remote controller 2. In this figure, reference numeral 35 denotes a wireless receiving unit which receives and demodulates a wireless signal transmitted from the television receiver 1. Then, the data read from the memory 24 of the television receiver 1 is output to the still image decompression circuit 36, and the audio processing circuit 3 of the television receiver 1 is output.
2 is output to the MP-3 decoding circuit 37. The still image decompression circuit 36 decodes the data supplied from the wireless reception unit 35 back to the original video data, generates a synchronizing signal and an RGB color signal from the video data, and generates an LCD (liquid crystal) display 38 ( (See FIG. 1). The MP-3 decoding circuit 37
5 is decoded into the original audio signal, and the audio signal is amplified and output to the headphone output terminal 3.
9 (see FIG. 1). These circuits 36 and 37 respectively provide a power save signal PS output from the control unit 42.
Controls power on / off.

The remote control switch circuit 41 comprises a snapshot switch 44, a snap selection switch 45 and other operation switches provided on the panel surface of the remote control 2 shown in FIG. Is done. The control section 42 generates and outputs a control signal for controlling each section of the remote control based on the output of each switch of the remote control switch circuit 41, and also sends a control signal for controlling the television receiver 1 to the wireless transmission section 43. And a power save signal PS for controlling the power on / off of the circuits 36 and 37. Wireless transmitter 4
3 transmits a control signal output from the control unit 42 to the television receiver 1 on a carrier wave.

Next, the operation of the above-described television receiver with remote control will be described. First, when the user turns on the power supply by the operation switch of the operation switch circuit 30 of the television receiver 1 and selects the first tuner by the operation switch, the control signal SWS
The selectors 15 and 17 select the video signal VS1 and the audio signal AS1, respectively, whereby the video and audio based on the output of the first tuner / RF processing circuit 6 are CR
It occurs in the T display 27 and the speaker 29.

Further, the user operates the operation switch to activate the second operation.
When the tuner is selected, the control signal SW from the control unit 20
S causes the selectors 15 and 17 to select the video signal VS2 and the audio signal AS2, respectively, whereby the video and audio based on the output of the second tuner / RF processing circuit 7 become C
It occurs in the RT display 27 and the speaker 29. When the user selects a video disk with the operation switch, the video signal VS3 and the audio signal AS3 are selected by the selectors 15 and 17, and the video and audio based on the output of the video disk are generated in the CRT display 27 and the speaker 29.

In these cases, the control unit 20 outputs a signal PS for turning on the power of the video processing circuit 19 and the audio processing circuit 26 and turning off the power of the audio processing circuit 32.
As a result, the power of the unused audio processing circuit 32 is turned off. When the user selects the first tuner and wants to listen to the sound of the television through the headphones 3 connected to the remote controller 2, the user selects the remote control sound by the operation switch of the operation switch circuit 30. When this selection is made, the control unit 20 sets the selector 18
Is set to the audio signal AS1, and a signal PS for turning off the power of the audio processing circuit 26 and turning on the power of the audio processing circuit 32 is output. Thereby, a sound based on the sound signal AS1 is generated in the headphones 3 connected to the remote controller 2.

The user selects the first tuner and sets C
If the user wants to take a snapshot while watching the RT display 27, he turns on the snapshot switch 44 of the remote controller 2. When the switch 44 is turned on, the control unit 42 receives the output signal, forms a control signal (referred to as a control signal SN), and outputs the control signal to the wireless transmission unit 43. The radio transmission unit 43 puts the control signal SN on a carrier wave and transmits the control signal SN to the television receiver 1. The wireless receiving unit 31 of the television receiver 1 receives the signal from the remote controller 2, demodulates the signal into the original control signal SN, and outputs the signal to the control unit 20. The control unit 20 receives the control signal SN and selects the selector 1
6 is set to the video signal VS1, and the A / D converter 2
Output a conversion command to 1. As a result, the video signal of one frame is converted into digital data and written into the frame memory 22. At the end of this write,
The control unit 20 outputs a compression command to the compression circuit 23. The compression circuit 23 receives this command, reads out the data in the frame memory 22, compresses the data, and writes it into the memory 24.

Next, after a lapse of time, if the user wants to take a snapshot again,
Is turned on. When the switch 44 is turned on, one frame of compressed data is stored in the memory 24 again by the same process as described above.

Next, when the user wants to view the snapshot, the user selects the snap selection switch 4 of the remote controller 2.
Turn 5 on. When the switch 45 is turned on, the control unit 42 receives the output signal, forms a control signal (referred to as a control signal SS), and outputs the control signal to the wireless transmission unit 43. The wireless transmission unit 43 puts the control signal SS on a carrier wave and transmits the control signal SS to the television receiver 1. The wireless receiver 31 of the television receiver 1 receives the signal from the remote controller 2, demodulates the signal into the original control signal SS, and outputs the signal to the controller 20. Control unit 2
0 receives the control signal SS and outputs a transmission command to the wireless transmission unit 28. The wireless transmission unit 28 receives this command,
4, the first stored compressed video data of one frame is read out, put on a carrier wave, and transmitted to the remote controller 2. The wireless receiver 35 of the remote controller 2 receives this signal, demodulates the signal into the original compressed video data, and outputs it to the still image decompression circuit 36. The still image decompression circuit 36 decompresses the compressed video data and returns it to video data, and displays this video data on the LCD display 38.

Next, when the user turns on the snap selection switch 45 of the remote controller 2 again, one frame of the compressed video data stored in the memory 24 is read second by the same process as described above, and is displayed on the LCD. Is displayed on the display 38. Thereafter, every time the user turns on the snap selection switch 45 of the remote controller 2, the compressed image data stored in the memory 24 is repeatedly read out in frame units and displayed on the LCD display 38.

As described above, according to the above embodiment, the snapshot is stored in the LCD display 38 of the remote controller 2.
, The video on the CRT display 27 is not disturbed by the snapshot. Further, since the power supply of the circuits not used by the control units 20 and 42 is turned off, power can be saved. Further, according to the above embodiment, since the output of the second tuner / RF processing circuit 7 is stored in the memory 24, the video of the counter program can be displayed on the remote controller 2 intermittently. You can know the outline of the program. If such a function is unnecessary, circuits such as the second tuner / RF processing circuit 7 can be omitted.

[0021]

As described above, according to the present invention, the snapshot can be displayed on the remote controller, so that the snapshot can be viewed without affecting the screen currently being received by the television receiver. There is an effect that can be. According to the second aspect of the present invention,
Power supply control means for turning off power to unused circuits in the television receiver and power supply control means for turning off power to unused circuits in the remote control are provided. Electric power can be saved. According to the third aspect of the present invention, the television receiver compresses the data in the storage means and transmits the data to the remote controller, and the remote controller expands the signal output from the receiving means to perform display. The capacity of the storage means for storing the video signal can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a block diagram showing details of a television receiver 1 in the embodiment.

FIG. 3 is a block diagram showing details of a remote controller 2 according to the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Television receiver, 2 ... Remote control, 3 ... Headphones, 6 ... 1st tuner / RF processing circuit, 7 ... 2nd tuner / RF processing circuit, 20 ... Control part, 21 ... A / D converter, 22 ... Frame memory, 23 compression circuit, 24 memory, 26 audio processing circuit, 27 CRT display, 28 wireless transmission unit, 31 wireless reception unit, 32 audio processing circuit, 35 wireless reception unit, 36 stationary Picture expansion circuit,
37 ... MP-3 decoder, 38 ... LCD display, 39 ...
Headphone output terminal, 44: snapshot switch, 45: snapshot selection switch.

Claims (3)

[Claims] 1. A television receiver with a remote controller comprising a television receiver and a remote controller for remotely controlling the television receiver, wherein the television receiver is configured to output a signal based on a snapshot instruction signal transmitted from the remote controller. Storage means for storing a video signal of one frame, and transmission means for transmitting the video signal in the storage means to the remote control, wherein the remote control has a snapshot switch and the snapshot switch is on And transmitting means for transmitting the snapshot instruction signal to the television receiver, receiving means for receiving and demodulating a signal transmitted from the transmitting means of the television receiver, And a display means for performing display based on output. Down the receiver. 2. The television receiver is provided with power control means for turning off power of an unused circuit, and the remote control is provided with power control means for turning off power of an unused circuit. The television receiver with a remote controller according to claim 1, wherein: 3. The television receiver has compression means for compressing data in the storage means, the transmission means transmits a video signal compressed by the compression means to the remote control, And a decompression means for decompressing a signal output from said reception means and returning it to an original video signal, wherein said display means performs display based on an output of said decompression means. 3. The television receiver with a remote controller according to 2.