JP2003052001A - Storage type tv receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of impossibility of obtaining the lost content of the main program for a user when returning in TV selection to a main program, after the view of the counter program and a problem of no means for a user to recognize the stream from the viewed content of the program when the main program is recorded and reproduced. SOLUTION: When a main program is viewed, a signal of a first tuner is used, and when the main program is recorded, a signal of a second tuner is recorded in a recording device. When the counter program is viewed during the recording of the main program, the signal of the first tuner is used. In the recording device, a switching time recording position for starting the recording of the main program at the switching to the counter program is provided. Then, when returning to the view of the main program, the reproducing signal read from the switching time recording position is generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage type television receiver having a function of receiving a television broadcast and recording / reproducing it.

[0002]

2. Description of the Related Art FIG. 5 shows, for example, JP-A-7-130150.
FIG. 1 is a block diagram showing a configuration of a conventional storage-type television receiver as shown in Japanese Patent Publication No. JP-A-2003-242, in which 6 is a recording device, and 25 is a recording device 6 for recording received information such as image information and audio information. It is a control unit. A reproducing unit 27 reproduces the received information recorded from the recording device 6. Two
1 is a control unit, 22 is a selector, 29 is an output signal processing unit,
Reference numeral 14 is a display device, and 15 is a speaker. Reference numeral 20 denotes a positioning unit that is controlled by the control unit 21 and that aligns the head with the recording start position or the recording position in the recording device 6.

Next, the operation will be described. Digitized reception information such as a television reception signal is the selector 2
Entered in 2. The received information is composed of demodulated image information and audio information, and is selected by the control unit 21. The selected image information is output to the display device 14 via the output signal processing unit 29, and the selected audio information is directly output to the speaker 15 to be reproduced as video and audio. In this state, when the recording start signal is given to the control unit 21, the selector 22 is controlled and the recording device 6 is selected as the output destination of the reception information. Next, in this state, when the recording / playback start signal is given to the control unit 21, the control unit 21 issues a playback request to the positioning unit 20. As a result, the positioning unit 20 positions the reproducing head (not shown) at the reproducing position (that is, corresponding to the recording start position) and reproduces. The signal read from the recording device 6 is reproduced by the reproducing unit 27 into predetermined image information and audio information, and the output signal processing unit 29
Is generated as an output signal to be supplied to the display device 14 and the speaker 15. At this time, the positioning unit 20 is still instructed by the control unit 21 that recording is in progress,
The recording head is still positioned at the recording position and recording continues.

[0004]

Since the conventional storage-type television receiver is constructed as described above, it can only record and reproduce only the selected program. As described above, when watching a program that is difficult to understand unless you are watching it based on a series of flows (hereinafter, the program you are watching as the main program is referred to as “main program” or “recorded program”). Call), programs of other stations (hereinafter,
If you tune in to the "back program"), the content of this program will not be recorded and will be missed. Therefore, when the channel returns to this program again, the user cannot obtain the content of the lost part of the program, and it becomes difficult to understand the content of the program, and the flow of the program becomes difficult. There was a problem that I had to continue watching without grasping. In addition, when recording and reproducing this program, there is a problem that there is no means for re-recognizing the flow of the program from the state in which it was previously viewed.

The present invention has been made in order to solve the above problems, and when the main program is continuously recorded while watching the back program, and when the back program returns to the main program. The purpose of the present invention is to obtain a storage-type television receiver that can be viewed and listened to without missing some of the contents of this program.

[0006]

A storage-type television receiver according to the present invention is a storage-type television receiver having means for recording and reproducing a received television broadcast signal in a recording device, the first tuner and the second tuner. A tuner is provided, and the signal received by the first tuner is used when viewing the main program being received, and the second signal is used when recording the main program.
The signal received by the tuner is recorded in the recording device,
When the back program is viewed while recording the main program, the signal received by the first tuner is used, and the recording device sets a recording position at the time of switching to start recording the main program when switching to the back program. In order to return to the viewing of the main program, the recording device outputs a reproduction signal read from the switching recording position so that the recording device records and reproduces the contents up to the end of the main program. It is the one.

A storage-type television receiver according to the present invention is a storage-type television receiver having means for recording and reproducing a received television broadcast signal in a recording device, which comprises a first tuner and a second tuner. The signal received by the first tuner is used when viewing the main program, and the signal received by the second tuner is recorded in the recording device when recording the main program. When watching a back program during recording, the signal received by the first tuner is used, the recording device records a predetermined period of the main program before switching to the back program, and A switching recording position for recording the main program when switching to the program is provided, and when returning to viewing the main program, the recording device reads from the switching recording position from a position traced back for the predetermined period. Outputting the reproduced signal, in which the recording device has to continue to record and reproduce the contents until the end of the present program.

In the storage-type television receiver according to the present invention, the signals received by the first tuner and the second tuner are transport stream signals of digital television broadcasting,
The signal recorded in the recording device is the output transport signal of the second tuner.

In the storage-type television receiver according to the present invention, the signal received by the first tuner and the second tuner is a composite video signal of analog television broadcast, and the signal recorded in the recording device is the output of the second tuner. It is a digital signal obtained by encoding a composite video signal into a predetermined digital code, and the digital signal read from the recording device is decoded into a composite video signal.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. Embodiment 1. 1 is a block diagram showing the configuration of a storage type television receiver according to Embodiment 1 of the present invention. In the figure, 1 is an antenna for receiving digital broadcasting, 2 is a first tuner for receiving television broadcasting waves received by the antenna 1 for direct viewing, and 3 is an antenna 1 mainly for recording.
The second tuner, which receives the TV broadcast wave received at, each of the tuners 2 and 3 is a separate transport stream (T
A transport stream (hereinafter referred to as TS) signal can be received. Here, the TS will be supplemented.
A "stream" is a data array method or array data that starts playback before receiving all data when playing a moving image or music. MPEG-2 defines a method for multiplexing an arbitrary number of coded video, audio, and additional data streams such as additional data, and playing them back in synchronization with each other, but supports a wide range of applications. One of the streams specified to do so is TS. A TS can be composed of a plurality of programs (each program is composed of an array of digital video, audio, and data packets) in one stream so as to be compatible with broadcasting. Redundancy is set high assuming that it will be applied to environments where data transmission errors occur such as communication networks. TS
Is used in a communication path with a fixed transmission rate.

A demultiplexing unit 4 is a means for demultiplexing the TS signals from the first tuner 2 and the second tuner 3 and generating digital video and digital audio as continuous signals from each packet information. Reference numeral 6 is a recording device for directly recording the TS signal, and 7 is a recording control unit for controlling the read position and the write position of the recorded content of the recording device 6. Reference numeral 8 is a selector for selecting distribution of the output TS signals from the first tuner 2, the second tuner 3 and the recording device 6 to the recording device 6 and the demultiplexing unit 4. Reference numeral 11 is a recorded program selection unit for selecting a recorded program. Reference numeral 12 denotes a switching control unit, which switches the recorded program selected by the recorded program selection unit 11 to the back program, switches from the back program to the recorded program, and switches the back program for the first tuner 2 to another back program. Etc., and requests the selector 8 to switch the TS signal.

Reference numeral 13 is a decoder which decodes the signal demultiplexed by the demultiplexing unit 4 and extracts a video signal, an audio signal and a data broadcast signal. Reference numeral 14 is a display device for displaying an image according to an image signal output from the decoder 13.
Reference numeral 5 is a speaker that receives a voice signal and extracts voice.
Reference numeral 9 is a remote controller, and 17 is a program button. Reference numeral 16 is a recorded program selection button for instructing the recorded program selection unit 11 to select a recorded program. After pressing this recorded program selection button 16,
When the program button 17 is pressed within a certain period, it is registered as a recorded program. A timer 30 sets a certain period after the recorded program selection button 16 is pressed, and during that period, the recorded program selection unit 11 enables registration of the recorded program. Reference numeral 31 is a light receiving unit that receives an optical control signal from the remote controller 9. Reference numeral 32 denotes a storage device that stores the TS_id of a program selected as a recorded program and the service (a unit constituting the TS, which corresponds to a channel of the current terrestrial analog broadcast, and is hereinafter referred to as “channel”). TS_id is the I assigned to each TS
In D, a frequency band is assigned to each TS in digital broadcasting, and TS switching is performed by changing the tuner tuning process using this TS_id.

FIG. 2 is an explanatory view schematically showing the recording structure of the recording device 6, in which each rectangle represents a memory block having a predetermined memory size. In FIG. 1, if the recorded program selection button 16 of the remote controller 9 is pressed, the recording control unit 7 does not start recording the recorded program in that state. When the recorded program is switched to the back program by the remote control operation (state S1), writing to the recording device 6 is started. While the back program is being viewed (state S2), writing to the recording device 6 is performed, and the "current recording position" is sequentially updated. When the back program is switched to the recorded program again (state S3), the reading from the recording device 6 is started, and the “current recording position” and the “switching recording position” are updated. The memory blocks that have been read are sequentially released.

Next, the operation will be described. During normal times when the user is watching a television program, the TS signal received by the first tuner 2 is given to the demultiplexing unit 4 via the selector 8 and demultiplexed. The demultiplexed signal is decoded by the decoder 13 into a video signal and an audio signal, which are given to the display device 14 and the speaker 15, respectively. In this state, the recorded program selection button 16 of the remote controller 9 is pressed and the program button 17 of the remote controller 9 is pressed within a certain period. Then, the recorded program selection unit 11 sets the recorded program and selects the first tuner 2. Simultaneously with the channel selection, the recorded program selection unit 11 requests the switching control unit 12 to switch the program. The switching control unit 12 that has received the request controls the selector 8 to input the output TS signal from the second tuner 3 to the demultiplexing unit 4. The decoder 13 decodes the signal from the demultiplexing unit 4, supplies the output video signal to the display device 14, and supplies the audio output to the speaker 15. The switching control unit 12 causes the storage device 32 to store the TS_id and the channel selected by the recorded program selection unit 11. In the explanation that follows,
With respect to the operation of the demultiplexing unit 4 and thereafter, since the same processing is performed on the output TS signal from the selector 8, the description thereof will be omitted.

Next, after a lapse of a certain period of time, the user who is viewing the program (main program) selected by the second tuner 3 presses the program button 17 of the remote controller 9 to select another TS program (back program). ). Then, the switching control unit 12, which has received the tuning notification from the remote controller 9, reads the TS_id and the channel of the recorded program stored in the storage device 32, and the switched TS is the T of the recorded program.
It judges that it is not S, and issues a tuning request to the first tuner 2. At the same time, the switching control unit 12 causes the selector 8
In response to the request, the output from the second tuner 3 is directed to the recording device 6, and the output from the first tuner 2 is reconnected to the demultiplexing unit 4. The selector 8 receiving this request,
The output TS signal from the second tuner 3 output to the demultiplexing unit 4 is directed to the recording device 6, and the output TS signal from the first tuner 2 is directed to the demultiplexing unit 4. In response to a recording request from the selector 8, the recording control unit 7 starts control of the “switching recording position” and the “current recording position”, and the recording device 6 outputs the output TS from the second tuner 3 as shown in FIG. Record the signal.

The user who was watching the program (behind-the-scene program) selected by the first tuner 2 again turns to the second program.
It is assumed that the program is switched to the program of the tuner 3 (main program). Then, the remote controller 9 sends a switching notification to the switching control unit 12. Upon receiving this switching notification, the switching control unit 12 reads the TS_id and the channel of the recorded program stored in the storage device 32, and the switched TS is the TS of the recorded program (main program).
Then, the selector 8 is requested to switch the output to the demultiplexing unit 4. Then, the selector 8 requests the recording control unit 7 to reproduce the recorded program, and causes the recording device 6 to perform the reading process. The recording device 6 reads from the “recording position at switching” according to an instruction from the recording control unit 7, and sequentially outputs it to the selector 8. The selector 8 is
When the reproduction TS from the recording device 6 is accepted, the output TS from the first tuner 2 that the selector 8 is currently outputting.
To the reproduction TS of the recording device 6. On the other hand, in this state, the output TS from the second tuner 3 continues to be recorded in the recording device 6 via the selector 8 in sequence, and the reproduction STs thereof are sequentially read and viewed as the main program. .

In the TS digital broadcasting signal,
Since the data indicating the start and end times of the program are incorporated, the recording control unit 7 is used at the end of the recorded program (main program).
Thus, it is possible to detect the end data and stop the writing operation of the recording device 6. When the reproduction of the recorded program (main program) is completed, the first tuner 2 may be automatically switched to receive the original channel of the program, and the receiver may be turned off. You may In FIG. 1 described above, the input to the selector 8 is each output of the first tuner 2, the second tuner 3 and the recording device 6, and the input to the demultiplexing unit 4 is only the selection output of the selector 8. . Since the input of the demultiplexing unit 4 can be made one in this way, the structure of the demultiplexing unit 4 can be simplified, and switching between the programs from the first tuner 2 and the second tuner 3 and the recorded programs can be performed. Making it easy. In FIG. 1, most of the components can be replaced by using a microcomputer and software.

As described above, according to the first embodiment, a plurality of tuners 2 and 3 are provided and the recording timing of this program is set as shown in FIG. Even if the program is switched to another program, the contents of the main program being recorded can be recorded without fail and can be played continuously, so that the main program can be played while watching the back program. The effect of being able to confirm the flow up to the previously viewed state without losing sight of the contents of this program when the recording is continued and the program returns to the main program from the back program.

Embodiment 2. In the above-described first embodiment, the program content recorded in the recording device 6 is the content from the time point when the recorded program is switched to the back program, and at the time of reproduction, the video and audio from that time point are switched. Is played. On the other hand, the second embodiment shows a configuration in which the reproduction is performed before the time point when the recorded program is switched to the reverse program, that is, before the predetermined period.

1 and 3 are used for the description. Figure 3
FIG. 3 is an explanatory diagram schematically showing the recording structure of the recording device 6, as in FIG. 2. The recording control unit 7 controls the "reading position at the time of reproduction" in addition to the "recording position at switching" and the "current recording position" with respect to the output of the selector 8 to the recording device 6. In the second embodiment, the recording control unit 7 writes the content of the recorded program in the recording device 6 immediately after pressing the recorded program selection button 16 (state S4). When the writing progresses and the content of the recorded program is written in a predetermined number of blocks (state S5), the old block is released from time to time and the predetermined number of blocks is maintained (state S6). "Readout position during playback" is
This shows the position where the information before the certain interval from the "recording position during switching" (at the time when the program button 17 is pressed to switch to another program) is recorded. When the back program is switched to the recorded program while the recorded program is being recorded, the reading is performed from the "read position at the time of reproduction". Here, when the position of the block read from the "read position during reproduction" exceeds the "recording position during switching", the "read position during reproduction" is also maintained for "the read position during switching" while maintaining the predetermined number of blocks. It will be updated together with the "recording position".

Next, the operation will be described. While watching a television program, the recorded program selection button 16 is pressed by the user's remote control operation, and the program button 17 is pressed within a certain period. Then, the recorded program selection unit 11 sets the recorded program and selects the second tuner 3. The TS signal from the second tuner 3 is input to the selector 8. Simultaneously with the channel selection, the recorded program selection unit 11 requests the switching control unit 12 to switch the program. Switching control unit 12 that has received the request
Requests the selector 8 to switch the input to the demultiplexer 4 to the output TS of the second tuner 3. The output TS of the second tuner 3 is input from the selector 8 to the demultiplexer 4 and at the same time to the recording device 6. At this time, as shown in FIG. 3, the recording control unit 7 stores the “read position at the time of reproduction”, records a predetermined number of blocks (5 blocks in FIG. 3) (state S5), and then sequentially deletes the old blocks. Is released (state S6) and the information newly input from the selector 8 is written.

Next, the switching control section 1 is operated by operating the remote controller.
In 2, it is assumed that the recorded program (present program) is switched to the back program. The switching control unit 12 issues the original recording request to the selector 8 to the recording control unit 7 as described in the first embodiment. The selector 8 issues the recording request to the recording control unit 7. Upon receiving the recording request, the recording control unit 7 fixes the “reading position during reproduction” and the “recording position during switching”, writes the output content from the selector 8 at any time, and updates the current recording position.

Further, when the switching control unit 12 receives the switching notification from the back program to the recorded program (main program) again, the switching control unit 12 instructs the selector 8 to input the input to the demultiplexing unit 4 to the reproduction T of the recording device 6.
Request to switch to S. The selector 8 notifies the recording control unit 7 of switching from the back program to the recorded program. Then, the recording device 6 displays the “readout position during reproduction”.
The information is read out and output to the demultiplexing unit 4 via the selector 8. At this time, in the recording device 6, the update of the "reading position during reproduction" is started from the time when the reading position of the block advances from the "reading position during reproduction" to the "recording position during switching". For example, if the position 30 minutes back from the recording position at the time of switching is set as the “reading position at the time of reproduction”, when the recorded program is switched, the reproduction is started from the “reading position at the time of reproduction”, but another program will be started in 20 seconds. When it is switched again to, the reading position at the time of reproduction is not updated.

As described above, according to the second embodiment, a plurality of tuners 2 and 3 are provided so that the timing for recording the main program is set as shown in FIG. 3 when the back program is switched to the recorded program. As a result, the user can reproduce and watch the part that he / she was watching before, that is, the part that has been traced back for a predetermined period of time, remember the rough outline in advance, and obtain the effect that the continuation can be viewed without a sense of discomfort.

Embodiment 3. Embodiment 3 shows a case where the present invention is applied to analog broadcasting, and FIG. 4 is a block diagram showing a configuration of a storage type television receiver according to a third embodiment of the present invention. In the figure,
The parts corresponding to are indicated by the same reference numerals, and the description thereof will be omitted. Reference numeral 18 is an encoder that converts an analog video signal output from the selector 8 into a digital code. 19
Is a decoder for converting the digital code recorded in the recording device 6 into an analog signal. A signal processing unit 10 separates analog video signals and audio signals and outputs them to the display device 14 and the speaker 15.

In operation, the outputs of the first tuner 2 and the second tuner 3 are analog composite video signals,
Digital code when inputting to the recording device 6,
It is almost the same as the first embodiment except that the original composite video signal is encoded at the time of reproduction. Therefore, the timing at the time of recording and reproducing is the same as in the first embodiment, and the description thereof will be omitted.

As described above, according to the third embodiment, by installing the encoder 18 and the decoder 19 between the selector 8 and the recording device 6, the same as in the first embodiment for analog broadcasting. It is possible to perform various kinds of operation processing and obtain the same effect.

[0028]

As described above, according to the present invention, a storage type television receiver having means for recording and reproducing a received television broadcast signal in a recording device is provided with a first tuner and a second tuner. , The signal received by the first tuner is used when viewing the present program being received, and the signal received by the second tuner is recorded in the recording device when the main program is recorded. When the back program is viewed, the signal received by the first tuner is used, and the recording device is provided with a switching recording position for starting the recording of this program when switching to the back program, and when returning to viewing this program. The recording device outputs the reproduction signal read from the recording position at the time of switching, and the recording device is configured to continue recording and reproducing the contents until the end of this program, so even while watching the back program. Program recording continues Is, without Misokonau for the contents of this program when you return to this program from the off-screen program, there is an effect that can check the flow of up to the state that has been seen before.

According to the present invention, in the storage type television receiver having means for recording and reproducing the received television broadcast signal in the recording device, the storage type television receiver is provided with the first tuner and the second tuner, and the main program being received is received. When viewing, the signal received by the first tuner is used, when recording the main program, the signal received by the second tuner is recorded in the recording device, and when viewing the back program while recording the main program. Is a signal received by the first tuner, the recording device records a predetermined period of this program before switching to the back program, and records this program at the time of switching to the back program. Is provided
When returning to the viewing of this program, the recording device outputs a reproduction signal read from a position traced back for a predetermined period from the recording position at the time of switching so that the recording device records and reproduces the contents until the end of this program. Since it is configured as described above, when switching from the back program to the recorded program, the user can reproduce and watch from the part that he / she had watched before, so that the rough outline can be remembered in advance and the continuation can be viewed without a feeling of strangeness. effective.

According to the present invention, the signals received by the first tuner and the second tuner are the transport stream signals of digital television broadcasting, and the signal recorded in the recording device is the output transport signal of the second tuner. Since it is configured like this, it adapts to a television receiver that receives digital broadcast signals, and when returning from the back program to the main program, without losing sight of the contents of this program, check the flow to the state you were watching before It has the effect of making it possible.

According to the present invention, the signal received by the first tuner and the second tuner is a composite video signal for analog television broadcasting, and the signal recorded in the recording device is a predetermined composite video signal output by the second tuner. This is a digital signal encoded into a digital code, and the digital signal read from the recording device is configured to be decoded into a composite video signal. When returning to, there is an effect that you can check the flow to the state you were watching before without losing sight of the contents of this program.

[Brief description of drawings]

FIG. 1 is a first embodiment and a second embodiment of the present invention.
FIG. 3 is a block diagram showing a configuration of a storage-type television receiver according to FIG.

FIG. 2 is an explanatory diagram schematically showing the recording structure of the recording apparatus according to the first embodiment.

FIG. 3 is an explanatory diagram schematically showing the recording structure of the recording apparatus according to the second embodiment.

FIG. 4 is a block diagram showing a configuration of a storage type television receiver according to a third embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a conventional storage-type television receiver.

[Explanation of symbols]

1 antenna, 2 first tuner, 3 second tuner,
4 demultiplexing unit, 6 recording device, 7 recording control unit, 8 selector, 9 remote controller, 10 signal processing unit, 11 recorded program selection unit, 12 switching control unit, 13 decoder, 14
Display device, 15 speaker, 16 recorded program selection button, 17 program button, 18 encoder, 19 decoder, 20 positioning unit, 21 control unit, 22 selector, 25 recording control unit, 27 reproducing unit, 29 output signal processing unit, 30 timer , 31 light receiving unit, 32 storage device.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toyoji Makino             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. (72) Inventor Shigehiro Tamaki             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. F term (reference) 5C025 AA23 BA30 CA03 DA01 DA04                       DA08                 5C053 FA20 FA30 GB38 KA08 KA24                       LA06 LA07                 5D044 AB07 BC01 CC04 DE15 EF02                       GK08                 5D080 BA03 DA07 EA01 GA01

Claims (4)

[Claims] 1. A storage-type television receiver having means for recording and reproducing a received television broadcast signal in a recording device, which comprises a first tuner and a second tuner and is used for viewing the present program being received. Uses the signal received by the first tuner, when recording the main program, records the signal received by the second tuner in the recording device, and when viewing a back program while recording the main program The signal received by the first tuner is used for the recording device, the recording device is provided with a switching recording position for starting recording of the main program when switching to the back program, and when returning to viewing the main program, The storage device is characterized in that the recording device outputs a reproduction signal read from the recording position at the time of switching, and the recording device records and reproduces the contents up to the end of the main program. Bi receiver. 2. A storage-type television receiver having means for recording and reproducing a received television broadcast signal in a recording device, which comprises a first tuner and a second tuner, and is for viewing the present program being received. Uses the signal received by the first tuner, when recording the main program, records the signal received by the second tuner in the recording device, and when viewing a back program while recording the main program The signal received by the first tuner is used for the recording device, the recording device records a predetermined period of the main program before switching to the back program, and at the time of switching to the back program, A switching recording position for recording is provided, and when returning to the viewing of the program, the recording device outputs a reproduction signal read from a position traced back from the switching recording position by the predetermined period, and the recording is performed. Storage-type television receiver location is characterized in that so as to continue to play and record the contents to the end of the present program. 3. A signal received by the first tuner and the second tuner is a transport stream signal of digital television broadcasting, and a signal recorded in a recording device is the second stream.
3. The storage type television receiver according to claim 1, wherein the storage type television receiver is an output transport signal of a tuner. 4. The signal received by the first tuner and the second tuner is a composite video signal of analog television broadcasting,
The signal recorded in the recording device is a digital signal obtained by encoding the output composite video signal of the second tuner into a predetermined digital code, and the digital signal read from the recording device is decoded into the composite video signal. The storage-type television receiver according to claim 1 or 2.