JP2008271314A - Time-shifted reproduction system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a time-shifted reproduction system which can automatically perform time-shifted reproduction when a TV channel is the same as the channel of broadcast data being timer recorded. <P>SOLUTION: In the time-shifted reproduction system 1, when a TV broadcast receiving device 11 is powered on while timer recording is performed by an HDD recorder 12 as set up in a timer recording control portion 14 and the channel received by the TV broadcast receiving device 11 is the same as the channel of the broadcast data being timer recorded, a time-shifted reproduction control portion 16 outputs a time-shifted reproduction command signal to a reproduction control portion 15 and, at the same time, outputs a display data selection signal to a display data selecting portion 13 to instruct it to select broadcast data to be reproduced by the HDD recorder 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a time shift reproduction system.

  2. Description of the Related Art There is a time-shift playback device that uses a recording medium with excellent random accessibility such as a hard disk (hereinafter referred to as HDD) to record a TV program and simultaneously perform time-shift playback that plays back a recorded part. (For example, refer to Patent Document 1).

  By using such a time-shift playback device, for example, even when a program reserved for recording is being recorded, the program can be viewed from the beginning of the program.

  By the way, a normal TV has a function of holding a channel setting when the power is turned off and displaying the channel when the power is turned on next time. Therefore, when a TV program is turned on while a program reserved for recording on an HDD recorder or the like is being recorded, the channel when the power was turned off before that is the same channel as the channel reserved for recording. The TV receives the same program as the program being recorded, and the program being recorded is displayed on the TV.

  In other words, in a conventional time-shift playback device, when a viewer turns on a TV to perform a time-shift playback and wants to see the program being recorded from the beginning, he or she sees the middle of the program. There was a problem that interest in watching the program faded.

Also, when a program reserved for recording is being recorded, if the viewer matches the channel of the TV being viewed to the channel of the program, the middle of the program being recorded is also projected on the TV. There was a problem.
JP 2000-350130 A (page 6-7, FIG. 3)

  Accordingly, an object of the present invention is to provide a time shift reproduction system capable of automatically performing time shift reproduction when a TV channel matches a channel of broadcast data being reserved for recording.

  According to one aspect of the present invention, when the power is turned on, the TV broadcast receiving means for receiving the broadcast of the channel received at the time of the previous power-off, the recording / reproducing means capable of time-shift reproduction, and the input Display data selection for selecting whether display data to be output to the display device is broadcast data received by the TV broadcast receiving means or broadcast data reproduced from the recording / reproducing means in accordance with an instruction of a display data selection signal Means, reservation recording control means for instructing recording / reproducing means to record from the recording start time to the recording end time of the broadcast data of the designated channel of the TV broadcast based on the reserved recording information, and the recording / reproducing means, Reproduction control means for controlling reproduction and instructing the recording / reproduction means to perform time shift reproduction when receiving a time shift reproduction instruction signal; and When the reception channel of the TV broadcast receiving unit after power-on is coincident with the channel of the broadcast data being recorded during the reserved recording, the time shift reproduction instruction signal is output to the reproduction control unit. There is provided a time shift reproduction system comprising: time shift reproduction control means for outputting a display data selection signal for instructing display data selection means to select broadcast data reproduced from the recording / reproduction means.

  According to the present invention, time-shift playback can be automatically performed when the TV channel matches the channel of broadcast data being reserved for recording.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing an example of the configuration of a time shift reproduction system according to Embodiment 1 of the present invention.

  The time-shift playback system 1 of the present embodiment is a TV broadcast receiver 11 that receives a broadcast of a channel that was received when the power was turned off when the power was turned on, and recording / playback means that can perform time-shift playback. Whether the display data to be output to the display device is broadcast data received by the TV broadcast receiving device 11 or broadcast data reproduced from the HDD recorder 12 in accordance with the instruction of the HDD recorder 12 and the input display data selection signal Instruct the HDD recorder 12 to record from the recording start time to the recording end time of the broadcast data of the designated channel of the TV broadcast based on the display data selection unit 13 for selecting, and the recording reservation setting input from the outside. When the reproduction of the reserved recording control unit 14 and the HDD recorder 12 is controlled and the input of the time shift reproduction instruction signal is received When the playback control unit 15 for instructing the HDD recorder 12 to perform time-shifted playback and the HDD recorder 12 is performing scheduled recording and the reception channel of the TV broadcast receiving apparatus 11 after power-on coincides with the channel of the broadcast data being recorded. The time-shift reproduction control unit 16 outputs a time-shift reproduction instruction signal to the reproduction control unit 15 and outputs a display data selection signal that instructs the display data selection unit 13 to select broadcast data reproduced from the HDD recorder 12. And comprising.

  Next, an example of the internal configuration of the time shift reproduction control unit 16 will be described.

  The time-shift playback control unit 16 observes the state of the power switch (SW) of the TV broadcast receiving device 11 that is turned on / off from the outside, and monitors the power-on status of the TV broadcast receiving device 11. A reception channel data acquisition unit 162 that acquires information about the channel of the TV broadcast data being received by the TV broadcast reception device 11 from the TV broadcast reception device 11 as reception channel data, and a scheduled recording control unit that is output to the HDD recorder 12 13, a reservation recording execution determination unit 163 that determines whether the HDD recorder 12 is executing reservation recording by monitoring instructions from the HDD 13, and information on the channel of TV broadcast data being recorded by the HDD recorder 12 as a recording channel A recording channel data acquisition unit 164 that acquires data from the timer recording control unit 14 as data, and a reception channel A channel that compares the reception channel data acquired by the data acquisition unit 162 with the recording channel data acquired by the recording channel data acquisition unit 164 and outputs a channel data match signal when the reception channel data and the recording channel data match. Playback control based on the power-on status of the TV broadcast receiver 11 detected by the data comparison unit 165 and the power-on status monitoring unit 161, the determination result of the scheduled recording execution determination unit 163, and the comparison result of the channel data comparison unit 165 A display control unit 166 that controls output of the time shift reproduction instruction signal to the unit 15 and output of the display data selection signal to the display data selection unit 13.

  Here, the display control unit 166 operates as follows.

  That is, when the power-on status monitoring unit 161 detects the power-on to the TV broadcast receiving apparatus 11, the reservation recording execution determination unit 163 determines that the reservation recording is being executed, and the channel data comparison unit 165 determines the channel. When the data coincidence signal is output, the display control unit 166 outputs the time shift reproduction instruction signal from the recording start time set in the reserved recording control unit 14 to the reproduction control unit 15 and the display data selection unit 13. A display data selection signal for instructing to select broadcast data reproduced from the HDD recorder 12 is output.

  As a result, when the power switch of the TV broadcast receiving apparatus 11 is turned on, the HDD recorder 12 is performing scheduled recording, and the power switch of the previous TV broadcast receiving apparatus 11 is turned off for the reserved recording channel. If the channel is the same as the channel received at the time, the HDD recorder 12 automatically starts time-shifted playback, and playback broadcast data from the recording start time is output to the display device.

  As a result, even if the viewer turns on the power of the TV broadcast receiving apparatus 11 during the reserved recording of the HDD recorder 12, the viewer does not have to encounter a situation in which the broadcast during the reserved recording is viewed.

  In this way, when the channel of the TV broadcast receiving apparatus 11 is changed after time shift reproduction is automatically started, the display control unit 166 operates as follows.

  That is, when the channel of the TV broadcast receiving apparatus 11 is changed after the time shift reproduction instruction signal is output to the reproduction control unit 15 and the channel data comparison unit 165 detects a mismatch between the reception channel data and the recording channel data. The display control unit 166 outputs a reproduction pause signal to the reproduction control unit 15 and instructs the display data selection unit 13 to select broadcast data received by the TV broadcast receiving device 11.

  After that, when the channel of the TV broadcast receiver 11 is changed again and the channel data comparison unit 165 outputs a channel data match signal, the display control unit 166 releases the reproduction pause to the reproduction control unit 15. A signal is output and the display data selection unit 13 is instructed to select broadcast data reproduced from the HDD recorder 12.

  As a result, when the channel of the TV broadcast receiving apparatus 11 is changed to a channel other than the reserved recording channel after the start of the time shift reproduction, the time shift reproduction of the HDD recorder 12 is temporarily stopped and the TV broadcast receiving apparatus 11 The received broadcast data is output to the display device. Therefore, the viewer can view the TV broadcast of the changed channel.

  After that, when the channel of the TV broadcast receiving apparatus 11 is returned to the channel during the reserved recording, the pause of the time shift playback of the HDD recorder 12 is released, the time shift playback is resumed, and the playback broadcast data is Output to the display device. Therefore, the viewer can continue to watch the continuation of the broadcast during the time-shift playback that has been suspended.

  FIG. 2 is a flowchart showing the flow of the time shift playback operation when setting the recording reservation of the time shift playback system 1 of this embodiment. The flow of the time shift reproduction operation of the time shift reproduction system 1 will be described using this flowchart.

  After the operation of the time shift playback system 1 is started, a recording reservation is set to the reserved recording control unit 14 (step S01), and when the recording start time comes, the reserved recording control unit 14 instructs the HDD recorder 12 to record the designated channel. Then, the HDD recorder 12 starts recording (step S02).

  At this time, the power-on status monitoring unit 161 monitors the power-on status of the TV broadcast receiving apparatus 11, and determines whether the power of the TV broadcast receiving apparatus 11 is turned on (step S03).

  When the power-on state monitoring unit 161 does not detect that the power is on (N), it is not necessary to perform time shift reproduction, and thus the operation of this flow ends.

  On the other hand, when it is detected by the power-on state monitoring unit 161 that the power is on (Y), the reserved recording execution determining unit 163 determines whether or not the reserved recording is being executed ( Step S04).

  At this time, if the recording end time in the recording reservation setting has already passed, the reservation recording execution determination unit 163 determines that the reservation recording is not being executed (N). In this case, even if the channel of the TV broadcast receiving device 11 matches the channel reserved for recording, since the broadcast reserved for recording has already ended, the broadcast currently received by the TV broadcast receiving device 11 is not received. It may be displayed as it is. Therefore, in this case, the display control unit 166 instructs the display data selection unit 13 to select broadcast data received by the TV broadcast receiving device 11 (step S14).

  On the other hand, when it is determined in step S04 that the reserved recording execution determining unit 163 determines that the reserved recording is being executed (Y), it is subsequently determined whether or not a channel data matching signal is output from the channel data comparing unit 165. (Step S05).

  At this time, if the channel data coincidence signal is not output (N), it indicates that the channel of the TV broadcast receiving apparatus 11 is different from the broadcast channel during reserved recording. Therefore, in this case as well, the broadcast currently received by the TV broadcast receiving device 11 may be displayed as it is, and the display control unit 166 displays the broadcast data received by the TV broadcast receiving device 11 to the display data selection unit 13. The selection is instructed (step S14).

  On the other hand, when a channel data match signal is output from the channel data comparison unit 165 in step S05 (Y), it is confirmed that the channel of the TV broadcast receiver 11 matches the channel of the broadcast being reserved for recording. For this reason, if the broadcast received by the TV broadcast receiver 11 is displayed as it is, the broadcast during the reserved recording will be seen. Therefore, in order to avoid such a state, the display control unit 166 outputs a time shift reproduction instruction signal from the recording start time set in the reserved recording control unit 14 to the reproduction control unit 15 (Step S1). At the same time, a display data selection signal for instructing the display data selection unit 13 to select broadcast data reproduced from the HDD recorder 12 is output (step S07).

  As a result, the HDD recorder 12 starts time-shifted playback from the start of reserved recording, and the playback data is output to the display device.

  Thereafter, the display control unit 166 monitors whether or not the output of the channel data match signal from the channel data comparison unit 165 is continued, and determines whether or not the channel of the TV broadcast receiving device 11 has been changed (step S08). .

  If the channel data matching signal is no longer output from the channel data comparison unit 165, it is determined that the channel of the TV broadcast receiving apparatus 11 has been changed (Y). In this case, the display control unit 166 outputs a reproduction pause signal to the reproduction control unit 15 (step S09), and at the same time, selects the broadcast data received by the TV broadcast receiving device 11 to the display data selection unit 13. (Step S10).

  Thereby, the time shift reproduction of the HDD recorder 12 is temporarily stopped, and the broadcast data of the changed channel received by the TV broadcast receiving device 11 is output to the display device.

  Subsequently, the display control unit 166 monitors whether or not the channel data comparison signal is output again from the channel data comparison unit 165, and determines whether or not the channel of the TV broadcast receiving apparatus 11 has been restored (original channel). Step S11).

  At this time, when the channel data matching signal is not output from the channel data comparison unit 165, it is determined that the channel of the TV broadcast receiving apparatus 11 has not been restored (N), and the process returns to step S10.

  On the other hand, when a channel data match signal is output from the channel data comparison unit 165, it is determined that the channel of the TV broadcast receiver 11 has been restored (Y). In this case, the display control unit 166 outputs a reproduction pause release signal to the reproduction control unit 15. Thereby, the time shift reproduction of the HDD recorder 12 is resumed (step S12).

  Further, display control unit 166 outputs a display data selection signal that instructs display data selection unit 13 to select broadcast data to be reproduced from HDD recorder 12 (return to step S07).

  On the other hand, when the channel data comparison signal 165 continues to be output from the channel data comparison unit 165 in the determination in step S08, the display control unit 166 indicates that the channel of the TV broadcast receiving device 11 has not been changed. Then, it is determined (N), and it is subsequently determined whether or not the time shift reproduction of the HDD recorder 12 is reproduced until the recording end time based on the information from the reproduction control unit 15 (step S13).

  At this time, when it is determined that the playback up to the recording end time has not ended (N), the process returns to step S08 and the operations in the subsequent steps are repeated.

  On the other hand, when it is determined that the playback up to the recording end time has ended (Y), the display control unit 166 instructs the display data selection unit 13 to select the broadcast data received by the TV broadcast receiver 11. (Step S14), the operation of this flow is terminated.

  According to the present embodiment, when the reserved recording is performed by the HDD recorder 12, the power of the TV broadcast receiving apparatus 11 is turned on, and the reception channel of the TV broadcast receiving apparatus 11 at that time is the HDD recorder. When it matches the broadcast channel being reserved for recording, the time-shift playback of the broadcast data being reserved for recording is automatically started, and the broadcast data being reserved for recording can be output from the recording start time. Thereby, the viewer can fully enjoy the broadcast without watching the middle of the broadcast during the reserved recording first.

  Further, when the channel of the TV broadcast receiving device 11 is changed during the time shift reproduction, the time shift reproduction is temporarily stopped and the broadcast data of the changed channel received by the TV broadcast receiving device 11 can be output. it can. Thus, the viewer can automatically view the TV broadcast of the changed channel.

  Further, when the channel of the TV broadcast receiving apparatus 11 is restored after the suspension of the time shift reproduction, the suspension of the time shift reproduction of the HDD recorder 12 is canceled, the time shift reproduction is resumed, and the reproduction data is output. can do. Thus, the viewer can automatically view the continuation of the paused scene.

  In the first embodiment described above, the TV broadcast receiving device 11 is powered on while the HDD recorder 12 is recording the reserved recording, and the reception channel is the same as the broadcast channel being reserved for recording by the HDD recorder 12. In some cases, an example of a time-shift playback system in which time-shift playback of the HDD recorder 12 is automatically executed is shown.

  However, in some cases, even if the reception channel of the TV broadcast receiver 11 is the same as the broadcast channel being reserved for recording by the HDD recorder 12, there is a case where it is desired to view the current TV broadcast.

  Therefore, in this embodiment, by inputting a TV broadcast priority signal from the outside, even if the reception channel of the TV broadcast receiving device 11 is the same as the broadcast channel currently reserved for recording by the HDD recorder 12, the TV broadcast can be viewed. An example of a time-shift playback system that enables is shown.

  FIG. 3 is a block diagram showing an example of the configuration of the time shift reproduction system of the present embodiment.

  The time shift reproduction system 2 of the present embodiment has a time shift reproduction suppression unit 21 that suppresses the operation of the time shift reproduction control unit 16 when the time shift reproduction system 1 of the first embodiment receives an input of a TV broadcast priority signal. Is added. Therefore, in FIG. 3, blocks having the same functions as those in FIG. 1 are denoted by the same reference numerals as those in FIG. 1, and detailed description thereof is omitted here.

  The time shift reproduction suppression unit 21 controls operations related to time shift reproduction control of the time shift reproduction control unit 16 in accordance with a TV broadcast priority signal input from the outside.

  When the TV broadcast priority signal instructs the TV broadcast priority, the time shift reproduction control unit 16 is instructed not to output the time shift reproduction instruction signal, and the broadcast data received by the TV broadcast receiving device 11 is selected. Is instructed to output to the display data selection unit 13.

  On the other hand, when there is no TV broadcast priority instruction by the TV broadcast priority signal, the time shift reproduction control unit 16 is instructed to perform the same operation as in the first embodiment.

  FIG. 4 shows an operation flowchart of the time shift reproduction system 2 of the present embodiment.

  After the operation of the time shift reproduction system 2 starts, the time shift reproduction suppression unit 21 checks whether or not the TV broadcast priority is set by the TV broadcast priority signal (step S21).

  At this time, if the TV broadcast priority is set (Y), the time shift reproduction control unit 16 is instructed to suppress the time shift reproduction operation (step S22). As a result, no time shift reproduction instruction signal is output from the time shift reproduction control unit 16, and the display data selection unit 13 selects broadcast data received by the TV broadcast receiving apparatus 11 (step S23). .

  On the other hand, when it is determined in the check in step S21 that the TV broadcast priority setting by the TV broadcast priority signal is not performed (N), the time shift reproduction control unit 16 is instructed to execute the time shift reproduction operation ( Step S24). In this case, the time shift reproduction control unit 16 performs the operation according to the flowchart shown in FIG.

  According to this embodiment, when the reserved recording is performed by the HDD recorder 12, the TV broadcast receiving device 11 is turned on, and the reception channel is the broadcast channel currently reserved by the HDD recorder 12. , Whether or not to perform time shift reproduction of the HDD recorder 12 can be selected by an external signal. As a result, the viewer can view the current TV broadcast of the channel even during scheduled recording.

  In each of the embodiments described above, an HDD recorder using an HDD as a recording medium is shown as an example of recording / reproducing means capable of time-shift reproduction. However, other recording media capable of recording and reproducing simultaneously, such as a semiconductor memory. You may use the recorder which used.

1 is a block diagram showing an example of the configuration of a time shift reproduction system according to Embodiment 1 of the present invention. The flowchart which shows the flow of operation | movement of the time shift reproduction | regeneration system concerning Example 1 of this invention. The block diagram which shows the example of a structure of the time shift reproduction | regeneration system based on Example 2 of this invention. The flowchart which shows the flow of operation | movement of the time shift reproduction | regeneration system which concerns on Example 2 of this invention.

Explanation of symbols

1, 2 Time-shift playback system 11 TV broadcast receiver 12 HDD recorder 13 Display data selection unit 14 Reserved recording control unit 15 Playback control unit 16 Time-shift playback control unit 161 Power-on status monitoring unit 162 Reception channel data acquisition unit 163 Reserved recording In-execution determination unit 164 Recording channel data acquisition unit 165 Channel data comparison unit 166 Display control unit 21 Time shift reproduction suppression unit

Claims (5)

TV broadcast receiving means for receiving the broadcast of the channel that was received when the power was turned off before the power was turned on;
Recording and playback means capable of time-shift playback;
According to the instruction of the input display data selection signal, the display data to be output to the display device is selected as the broadcast data received by the TV broadcast receiving means or the broadcast data reproduced from the recording / reproducing means. Display data selection means;
Reserved recording control means for instructing the recording and reproducing means to record from the recording start time to the recording end time of the broadcast data of the designated channel of the TV broadcast based on the reserved recording information;
Playback control means for controlling playback of the recording / playback means and instructing the recording / playback means to perform time shift playback when receiving a time shift playback instruction signal;
While the recording / reproducing means is performing scheduled recording, when the reception channel of the TV broadcast receiving means after power-on coincides with the channel of the broadcast data being recorded, it outputs a time shift reproduction instruction signal to the reproduction control means. A time shift reproduction control means for outputting a display data selection signal for instructing the display data selection means to select broadcast data reproduced from the recording / reproduction means. The time shift reproduction control means includes
Power-on status monitoring means for monitoring the power-on status of the TV broadcast receiving means;
Receiving channel data acquisition means for acquiring, from the TV broadcast receiving means, information on the channel of the TV broadcast data being received by the TV broadcast receiving means, as received channel data;
Reserving recording execution determining means for monitoring an instruction from the reserved recording control means output to the recording / reproducing means and determining whether the recording / reproducing means is executing reserved recording;
Recording channel data acquisition means for acquiring information about the channel of TV broadcast data being recorded by the recording / playback means from the reserved recording control means as recording channel data;
The reception channel data acquired by the reception channel data acquisition means is compared with the recording channel data acquired by the recording channel data acquisition means. When the reception channel data and the recording channel data match, the channel data Channel data comparison means for outputting a coincidence signal;
Based on the power-on status of the TV broadcast receiving means detected by the power-on status monitoring means, the determination result of the reserved recording execution determining means and the comparison result of the channel data comparing means, the time shift to the reproduction control means 2. The time shift reproduction system according to claim 1, further comprising display control means for controlling output of a reproduction instruction signal and output of a display data selection signal to the display data selection means. The display control means includes
When the power-on status monitoring unit detects power-on to the TV broadcast receiving unit, the reservation recording execution determining unit determines that the reserved recording is being executed, and the channel data comparison unit matches the channel data match When the signal is output, a time shift reproduction instruction signal from the recording start time is output to the reproduction control means, and the display data selection means is instructed to select broadcast data reproduced from the recording / reproduction means. 3. The time shift reproduction system according to claim 2, wherein a display data selection signal is output. The display control means is
After outputting the time shift reproduction instruction signal to the reproduction control means,
When the channel data comparison means detects a mismatch between the reception channel data and the recording channel data, it outputs a reproduction pause signal to the reproduction control means, and the display data selection means to the TV broadcast reception means. Instructed to select the broadcast data being received,
After that, when the channel data comparison means outputs the channel data coincidence signal again, it outputs a reproduction pause release signal to the reproduction control means and is reproduced from the recording / reproduction means to the display data selection means. 4. The time shift reproduction system according to claim 3, wherein an instruction is given to select broadcast data. When a TV broadcast priority signal is input from the outside, a time for controlling the operation of the time shift reproduction control means and controlling the display data selection means to select broadcast data received by the TV broadcast reception means. The time shift reproduction system according to any one of claims 1 to 4, further comprising shift reproduction suppression means.

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