JP2007266677A - Recording/reproducing device, method, and program, and computer readable recording medium for storing recording/reproducing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a viewing form, where a sponsor, a broadcasting station, and a viewer are convinced for their conflicting request. <P>SOLUTION: There are provided: a program configuration extraction section for detecting and recording the position of a CM in a program; a CM reproduction monitoring section for monitoring the reproduction frequency of the CM in the program to generate program viewing information; a programming section for determining the main part of the program and the reproduction order of the CM to generate a program reproduction pattern, based on the CM reproduction frequency monitored by the CM reproduction monitoring section; a display section for displaying a plurality of program reproduction patterns organized by the programming section; and a reproduction section for reproducing an arbitrary, selected program reproduction pattern from the program reproduction pattern. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a recording / reproducing apparatus and a recording / reproducing method for recording / reproducing a broadcast program, and in particular, a viewer who views a recorded program including a CM during time-shifted reproduction for viewing the recorded program later, The present invention relates to a program recording / reproducing apparatus and a recording / reproducing method for providing a viewing mode that is highly convincing for both sponsors who provide programs.

As a recording / playback device with a large capacity recording device such as a DVD recorder with a hard disk becomes popular, a viewing mode of time-shift playback in which a broadcast program is once recorded on a recording medium such as a DVD or a hard disk and later viewed is becoming widespread. . Recorded programs have sponsored commercial messages (hereinafter referred to as CMs) inserted in the main part of the program, but viewers want to revive by showing a CM that is completely unrelated to the main part while shortening the time and watching the main part. Therefore, during the time-shift playback, when entering the CM section of the program, skipping the CM by using the remote control or fast-forwarding etc. has increased the viewing. For example, according to Patent Document 1, in order to save the effort of skipping CMs according to such a viewing mode, a playlist is provided in which CMs are skipped and reproduced at the time of broadcasting by paying a price.
JP 2002-94967 A

  By the way, the increase in viewing mode of time-shifted reproduction and the decrease in the degree of viewing of CMs included in a recorded program are concerned about a decrease in sales of products for sponsors who provide programs. This means that the value of commercials broadcast in programs is reduced. For broadcasters, there is concern about a decrease in advertising revenue due to a decline in the advertising value of commercials. Therefore, sponsors and broadcasting stations want viewers to watch commercials broadcast on programs, but viewers can reduce viewing time and do not want to see commercials that break the atmosphere of the program while watching the main part. Therefore, there is a demand for skipping CMs using the time shift playback function. Therefore, it is a problem to provide a viewing mode that is satisfactory to both sides of conflicting demands between the program providing side (ie, sponsor, broadcasting station) and the program viewing side (ie, viewer).

  In order to solve the conventional problems, a recording / reproducing apparatus of the present invention records a CM and a program having a main part divided by the CM onto a recording medium, and reproduces the program recorded on the recording medium. A program configuration extraction unit for detecting a start position and an end position of a main part included in the program to be recorded and a start position and an end position of a CM and recording them on the recording medium, and a start of the CM included in the program CM playback monitoring is performed to monitor whether or not playback from the position to the end position satisfies a predetermined condition, and if the predetermined condition is satisfied, information indicating that the played CM has been viewed is recorded on the recording medium. And the playback order of the main part and the CM included in the program recorded on the recording medium based on the information viewed by the CM and the CM playback monitoring unit. A program organizing unit that generates a playlist, a display unit that outputs a signal for displaying the playlist generated by the program organizing unit, and a reproducing unit that reproduces the main story and the CM in accordance with the reproduction order based on the generated playlist It is characterized by providing.

  Further, the program organization unit rearranges the reproduction order of the main part and the CM included in the program recorded on the recording medium based on the viewed information of the reproduced CM recorded by the CM reproduction monitoring unit. A plurality of playlists are generated, the display unit outputs a signal for displaying the plurality of playlists generated by the program organization unit, and the playback unit is selected from the plurality of generated playlists The play list is configured to be played back.

  The program organization unit rearranges the playback order so that all CMs are played before the main part included in the program when all CMs included in the recorded program have not been viewed. Generating a play list.

  In addition, when a part of the CM included in the recorded program has already been viewed, the program organizing unit determines that the main part included in the recorded program and the viewed among the CMs included in the recorded program Only the CMs excluding the CMs that have become unacceptable are subject to playback, and a playlist in which the playback order is rearranged so that the CMs subject to playback are played before the main part included in the program is generated. Features.

  In addition, the program organization unit may generate a playlist in which only the main part included in the program is a reproduction target when all CMs included in the recorded program have been viewed.

  The recording / reproducing method of the present invention is a recording / reproducing method for recording a CM and a program having a main part divided by the CM onto a recording medium, and reproducing the program recorded on the recording medium. The program composition extraction step of detecting the start position and end position of the main part included in the main part and the start position and end position of the CM and recording them on the recording medium, and reproduction from the start position to the end position of the CM included in the program Monitoring whether or not a predetermined condition is satisfied, and if the predetermined condition is satisfied, a CM reproduction monitoring step of recording information indicating that the reproduced CM has been viewed on the recording medium; and the CM reproduction monitoring step A play in which the playback order of the main part and CM included in the program recorded on the recording medium is rearranged based on the viewed information of the played CM recorded by A program composition step for generating a list, a display step for outputting a signal for displaying the playlist generated in the program composition step, and a reproduction step for reproducing the main part and the CM in accordance with the reproduction order based on the generated playlist. It is characterized by providing.

  The recording / playback program of the present invention is a recording / playback program for recording a CM and a program having the main part divided by the CM onto a recording medium, and playing back the program recorded on the recording medium. The program composition extraction step of detecting the start position and end position of the main part included in the main part and the start position and end position of the CM and recording them on the recording medium, and reproduction from the start position to the end position of the CM included in the program Monitoring whether or not a predetermined condition is satisfied, and if the predetermined condition is satisfied, a CM reproduction monitoring step of recording information indicating that the reproduced CM has been viewed on the recording medium; and the CM reproduction monitoring step The playback order of the main part and the CM included in the program recorded on the recording medium is arranged based on the viewed information of the played CM recorded by A program organization step for generating the playlist, a display step for outputting a signal for displaying the playlist generated in the program organization step, and playback for reproducing the main part and the CM in accordance with a playback order based on the generated playlist. It is characterized by comprising a step.

  Further, the computer-readable recording medium storing the recording / reproducing program of the present invention is a recording / reproducing for recording a program having a main part divided by the CM and the CM onto the recording medium, and reproducing the program recorded on the recording medium. A computer-readable recording medium for storing a program, wherein a program configuration extracting step of detecting a start position and an end position of a main part and a start position and an end position of a CM included in the recorded program and recording them on the recording medium And monitoring whether or not the reproduction from the start position to the end position of the CM included in the program satisfies a predetermined condition. If the predetermined condition is satisfied, information indicating that the reproduced CM has been viewed. CM playback monitoring step for recording the recorded CM on the recording medium, and the playback CM recorded by the CM playback monitoring step. Based on the listened information, a program organization step for generating a playlist in which the reproduction order of the main part and CM included in the program recorded on the recording medium is rearranged, and the playlist generated in the program organization step are displayed. A display step for outputting a signal for the reproduction and a reproduction step for reproducing the main story and the CM in accordance with the reproduction order based on the generated playlist.

  According to the recording / reproducing apparatus of the present invention, a recording / reproducing apparatus for recording a CM and a program having a main part divided by the CM onto a recording medium and reproducing the program recorded on the recording medium, wherein the program to be recorded is recorded. A program configuration extracting unit that detects the start position and end position of the main part and the start position and end position of CM and records them on the recording medium, and playback from the start position to the end position of the CM included in the program. Monitoring whether a predetermined condition is satisfied, and if the predetermined condition is satisfied, a CM reproduction monitoring unit that records information indicating that the reproduced CM has been viewed on the recording medium; and the CM reproduction monitoring unit Based on the viewed information of the reproduced CM recorded in the above, a playlist in which the reproduction order of the main part and the CM included in the program recorded on the recording medium is rearranged is generated. Since it includes an organization unit, a display unit that outputs a signal for displaying the playlist generated by the program organization unit, and a reproduction unit that reproduces the main part and the CM in accordance with the reproduction order based on the generated playlist. By viewing the CMs included in the program under certain conditions, a playlist that removes the viewed CMs from the playback target is dynamically generated, so programs such as sponsors and broadcast stations that want to view the CMs are provided. As a result, the viewer who is watching the program can play the dynamically generated playlist without having to watch the CM once viewed. , The trouble of skip operation can be reduced. In other words, it is possible to obtain a recording / playback apparatus that provides a viewing mode that is satisfactory to both the program provider (ie, sponsor, broadcast station) and the program viewer (ie, viewer) who have conflicting demands. Become.

  Further, the program organization unit rearranges the reproduction order of the main part and the CM included in the program recorded on the recording medium based on the viewed information of the reproduced CM recorded by the CM reproduction monitoring unit. A plurality of playlists are generated, the display unit outputs a signal for displaying the plurality of playlists generated by the program organization unit, and the playback unit is selected from the plurality of generated playlists Since the play list is configured to be played back, the viewer can select and play a favorite play list from a plurality of play lists.

  The program organization unit rearranges the playback order so that all CMs are played before the main part included in the program when all CMs included in the recorded program have not been viewed. Since the playlist is generated, the viewer can watch only the main part after viewing all the commercials, so that the viewer is not tempted to watch the commercials between the main parts.

  In addition, when a part of the CM included in the recorded program has already been viewed, the program organizing unit determines that the main part included in the recorded program and the viewed among the CMs included in the recorded program Since only the CMs except for the CMs that have become are subject to playback, a playlist is generated in which the playback order is rearranged so that the CMs to be played are played before the main part included in the program. From the viewpoint of the viewer, since the CM once viewed in the past viewing is not viewed again, the main part included in the recorded program can be viewed more efficiently.

  In addition, when all the CMs included in the recorded program have already been viewed, the program organization unit generates a playlist for reproduction of only the main part included in the program. Since all the CMs once viewed in the past viewing are not viewed again, only the main part included in the recorded program can be viewed.

  Hereinafter, a recording / playback apparatus according to an embodiment of the present invention will be described. In the present embodiment, a recording / reproducing apparatus having a function of recording a program including CM on a recording medium and a function of reproducing a program recorded on the recording medium based on a signal from a broadcast wave will be described as an example. If there is a recording medium on which a recorded program including a CM is already recorded, a reproducing apparatus having a function of reproducing using the recording medium can be applied.

First, a usage pattern of the recording / playback apparatus according to the embodiment of the present invention will be described. FIG. 1 is a schematic diagram showing an example of a home theater system configured using the recording / playback apparatus of the present embodiment.
The home theater system shown in FIG. 1 includes a television 801, a recording / playback device 802, and a remote controller 803, which are examples of display devices, and is used for viewers.
The use by the viewer means a program recorded on the recording / playback apparatus 802 using the television 801, the remote controller 803 (or an input means (not shown) such as an input button provided on the recording / playback apparatus 802), or a recording Displaying, selecting, and reproducing a playlist for a program recorded on the medium 804. The television 801 displays a play list selection screen GUI for displaying and selecting a play list for program reproduction. The remote controller 803 includes a menu key for calling a GUI, an arrow key for selecting a playlist displayed on the GUI, a decision key for starting playback of the selected playlist, and a return key for returning from the menu.

Next, the configuration of the recording / playback apparatus 802 of this embodiment will be described.
FIG. 2 is a diagram showing a main part of the recording / playback apparatus 802 shown in FIG.
The recording / playback apparatus shown in the figure includes a tuner 901, a program configuration extraction unit 902, a program organization unit 903, a display unit 904, a playback unit 905, a CM playback monitoring unit 906, a DVD (Digital Versatile Disc) / BD (Blu-ray Disc). It comprises a drive 908 or a hard disk drive 909, an MPEG decoder 910, and a signal synthesis unit 912.

  Hereinafter, the operation of the recording / playback apparatus 802 (in this example, reservation recording will be described as an example) will be described.

The tuner 901 receives a broadcast wave (for example, a digital broadcast wave), and is generated by interleaving and multiplexing stream data (for example, a video stream and an audio stream) constituting a program extracted based on a designated reception channel. The AV packet constituting the AV clip is sent to the program structure extraction unit 902.
The program configuration extraction unit 902 creates program information such as a program name and a reception channel at the time of scheduled recording, and also specifies a recording medium (for example, an optical recording medium such as a DVD or a BD, an HD, or the like) that designates an AV packet sent from the tuner 901 The AV clip is transmitted to a corresponding drive device (for example, a DVD / BD drive 908 or a hard disk drive 909) for recording on a magnetic recording medium) and analyzed by the AV packet sent from the tuner 901. Information, program information, and a program configuration table included in the program information are created.
The created AV clip information, program information, and the program configuration table included in the program information are sent to the corresponding drive device and recorded on the recording medium together with the AV clip including the AV packet described above.

The DVD / BD drive 908 and the hard disk drive 909, which are drive devices, store the received broadcast wave AV packets in the corresponding recording medium during recording, and read the recorded AV packets from the recording medium and transfer them to the MPEG decoder 910 during playback. To do.
The MPEG decoder 910 receives the compressed and encoded AV packet recorded on the recording medium from the drive device and decodes it into a video signal / audio signal.
The signal synthesis unit 912 synthesizes the video combined with the MPEG decoder 910 and the menu screen created by the display unit and outputs the synthesized video to the display screen of the television 801.

  Hereinafter, how the program configuration extraction unit 902 creates AV clip information, program information, and a program configuration table included in the program information will be described.

  FIG. 3 is a diagram showing the structure of a recorded program. One recorded program 101 is composed of a CM and a main part as shown at 102. The AV packet constituting the CM has an identifier for identifying the CM, and based on this information, the CM and the main part can be distinguished.

  102 CM and the main part have a one-to-one correspondence with play items (PI) as shown in 103 (in the example shown in FIG. 3, CM1 and PI1, main part 1 and PI2, CM2 and PI3,...). Main story 3 and PI6, CM4 and PI7). The play item (PI) 103 indicates a partial playback section of a recorded program. In this example, the play item 103 is a main part (main part 1, main part 2, main part 3) or CM (CM1, It corresponds to the playback section of CM2, CM3, CM4). In addition, the play item 103 holds an IN point that is a start time and an OUT point that is an end time of a partial playback section on the AV clip (in this example, PI1 holds the IN point and the OUT point of CM1, PI2 Is holding the IN point and OUT point of the main part 1, ..., PI6 is holding the IN point and OUT point of the main part 3, and PI7 is holding the IN point and OUT point of CM4).

  The time of the IN point and OUT point held by each play item 103 identifies the TS packet (Transport packet) constituting the AV clip 105 by referring to the time-address conversion table (also referred to as AV clip information) 104 Can be converted to an address. Here, the AV clip information 104 and the AV clip 105 will be described. First, the configuration of the AV clip 105 will be described with reference to FIG.

  FIG. 4 shows the structure of an AV clip. The AV clip 105 sent to the recording / playback apparatus of the present embodiment by broadcast waves is an MPEG2-TS format moving image stream in which a video stream 201 and an audio stream 207 are interleave-multiplexed as indicated by reference numeral 105 in FIG.

The video stream 201 is a compression-encoded picture data sequence, and the picture data is data corresponding to one image.
The audio stream 207 is a compressed and encoded audio frame sequence.
The picture data and the audio frame are converted into PES packets 202 and 206 including PTS (Presentation Time Stamp) information indicating the reproduction time.
The converted PES packets 202 and 206 are further converted into fixed-length TS packets (Transport packets) 203 and 205. The TS packets 203 and 205 are interleave-multiplexed to form an AV clip 105.
The interleave-multiplexed TS packets are numbered consecutively. These consecutive numbers are called packet numbers, and the address information stored in the AV clip information 104 is expressed by packet numbers. In this way, each AV packet constituting the AV clip received by the recording / playback apparatus 802 is numbered, and this is recorded on the recording medium via the program structure extraction unit 902.

Next, the AV clip information 104 will be described with reference to FIGS.
FIG. 5 is a diagram for explaining the configuration of the AV clip information 104.
The AV clip information 104 is a time-address conversion table that associates the reproduction time of a predetermined TS packet constituting the AV clip 105 with the address of this TS packet. The time-address conversion table stores a certain time on the AV clip and the address (packet number) of the first TS packet storing the picture data to be displayed at that time, and the AV clip is configured for the certain time. It shows which TS packet should be decoded from among TS packets to be decoded.
The time here refers to the time when the TS packet of the first number among the TS packets constituting the AV clip (the TS packet (V packet) whose packet number is “0” shown in FIG. 4) is reproduced as a reference. It is information indicating a time difference. For example, the recording / playback apparatus includes a counter (not shown) whose numerical value changes every time a fixed time elapses, and operates the counter when recording / playing back the first number of TS packets. Is associated with the time.

FIG. 6 is a diagram for explaining a more specific example of AV clip information. In the figure, information stored at the time 104a is information indicating the count value by the above-mentioned counter at the time of starting playback of each PI, and information stored at the address 104b stores picture data to be played back at the time 104a. This indicates the address (packet number) of the first TS packet.
The last time at time 104a (the time stored at the rightmost end in FIG. 6) indicates the OUT point of the last number PI (the end time of the recorded program).
In the time 104a, the time other than the first time and the last time is a time indicating the IN point of the PI having a predetermined number, and is also a time indicating the OUT point of the PI immediately before this number.
The time corresponding to the address “0” is set to “180000”, but this time corresponds to the reference value and may be a different value. Needless to say, if the value of the reference value is changed, the value of the subsequent time also changes according to the change.

In the example shown in FIG. 6, if the time “180000” is designated, the time-address conversion table is referred to obtain information that the corresponding address (packet number) is “0”, and then the AV clip 105 is stored. The TS packets whose address (packet number) is “0” among the TS packets to be configured are sequentially sent to the MPEG decoder 910 to start decoding.
With this configuration, playback from the designated PI is possible. In addition, when playback is performed by specifying time “18000” as the start time and “270000” as the end time, the corresponding packet numbers are obtained as “0” and “8”, respectively. “7” obtained by subtracting 1 from “8” is calculated, and TS packets having numbers “0” to “7” are sequentially sent to the MPEG decoder 910 to start decoding. In this way, it is possible to reproduce only the designated PI.

  With this configuration, a TS packet of an AV clip is read from a drive device such as a DVD / BD drive 908 or a hard disk drive 909 and sent to the MPEG decoder 910, so that playback from a predetermined PI or a predetermined PI is performed. Only the playback section from the IN point to the OUT point can be played back.

  The IN point of the first play item (PI1) is the program start point, and the OUT point of the last play item (PI7) is the end point of the program. Correspondingly, a play item 103 that constitutes a program in FIG. 3 is obtained by arranging a play item indicating the reproduction section of the main part and a play item indicating the reproduction section of the CM in the order of recording the program.

Next, program information created by the program configuration extraction unit 902 during reserved recording will be described with reference to FIGS.
FIG. 7 shows program information created at the time of recording, which includes a program name 701, a recording date and time 702, a recording channel 703, and a program configuration table 704. The contents of the program configuration table 704 will be described with reference to FIG.
FIG. 8 is a diagram for explaining the CM / main part flag and viewing flag in the program structure table among the program information of the recorded program created by the program structure extracting unit 902 during recording. In order to simplify the description, the information of “AV clip name, IN point, OUT point” in FIG. 7 is deleted. The program configuration table 704 includes flag information (CM / main flag) 704b indicating whether a play section or a CM playback section for each play item, and flag information (viewing flag) indicating whether the corresponding PI is unviewed or already viewed. 704c is held.
This viewing flag 704c is updated to “viewed” when a normal playback is performed from the IN point to the OUT point of the play item indicating the CM playback section during the program playback by the CM playback monitoring function included in the PI playback process described later. The

Next, how the program configuration extraction unit 902 creates the program configuration table 704 and generates the AV clip 105 and the AV clip information 104 will be described with reference to FIGS.
FIG. 9 shows a flow of processing for generating program information during recording.

When recording is started, program information corresponding to the program to be recorded is newly created in step S100, and the program name, channel, and recording start date and time of the program to be recorded are set. At this time, the number of play items is still zero.
Next, in step S101, an AV packet distributed as a broadcast wave is received.
In step S102, a new PI is created, the IN point is set as the recording time (or the current time), the viewing flag is set to unviewed, and the PI is added to the program information.
In step S103, it is determined whether or not CM identification information is included in the received AV packet. If CM identification information is included, the PI CM / main part flag is set to CM in step 105, and the process proceeds to step S106. If no CM identification information is entered in step S103, the CM / main part flag of the PI is set to main part in step S104, and the process proceeds to step S106.

  Next, in step S106, the AV packet is written on the recording medium. This specific process will be described later.

Next, in step S107, it is determined whether or not the recording is finished. The recording end determination is made based on whether or not the current time has reached the recording reservation end time. If the recording reservation end time has been reached, the process proceeds to step S111, where the current time is set as the OUT point of the playlist and the recording end time of the recording date and time of the program information, and the recording ends. Further, the address of the AV packet written in S106 in the time-address conversion table 104 is recorded in association with the OUT point time (recording end time) of the PI including the AV packet.
If the recording reservation end time has not yet been reached, the process advances to step S108 to receive the next AV packet of the broadcast wave.

  Next, in step S109, in order to perform processing for different PI in the main part and CM, whether the CM identification information of the AV packet written in advance and the CM identification information of the AV packet received in step S108 are the same Determine if it is not. If the CM identification information has not changed, the process returns to step S106, and the AV packet received in step S108 is written to the recording medium. If the CM identification information has changed, the current time is set at the OUT point of the latest PI in step S110, and the process returns to step S102 to create a new PI. By continuing the above processing until the recording reservation end time, program information, a program configuration table, AV clips and AV clip information are generated.

  FIG. 10 shows a specific processing flow of the AV packet writing process in step S106. In FIG. 10, in step S201, it is determined whether the received AV packet is a V packet of a random access point. The random access point is the first V packet of GOP (Group of Pictures) of the MPEG2 video stream. If the received AV packet is the first V packet of the GOP, in step S202, the current time and the address (packet number) of the corresponding AV packet are added to the AV clip information 104, and the process proceeds to step S203. If it is not the first V packet of the GOP, the process proceeds to step S203 without being added to the AV clip information. The AV packet received in step S203 is written to the DVD / BD disc or hard disk, and the process returns to step S107 in FIG. AV clip information is generated by executing the flow shown in FIG.

  Next, the program organization unit 903 will be described. The program organization unit 903 determines the reproduction order of the main part and the CM based on the CM viewing frequency when the viewer reproduces the recorded program, and creates a playlist (PL) that is a program reproduction pattern.

  First, the playlist will be described with reference to FIG. A play list is information that determines which play items are to be played back and which play items to be played are played back in the order of play items that make up a recorded program. FIG. 11 shows an example of a play list. FIG. The content of the play list 1000 is a play item sequence 1001 of all or a part of play items constituting a certain program, and is information for determining the reproduction order of the main section and the CM section in the program.

  For example, with respect to the program 101 in FIG. 3, originally PI1, PI2,. . . . When playback is performed in the order of PI7, the playback order of PI (CM, main part) constituting the recorded program is edited. FIG. 11 is a diagram showing an example of a playlist 1000 whose playback order has been edited. In the example of FIG. 11, the play item 1001 included in the playlist 1000 is a target for playback. In the example of FIG. 11, PI2, PI4, and PI6 are sequentially stored as the play item 1001, and these are targets of playback. 11 are reproduced in the order from the PI located on the left side of the drawing to the right. In this example, reproduction is performed in the order of PI2, PI4, and PI6.

Taking the contents shown in FIG. 3 into consideration, PI2, PI4, and PI6 indicate the sections of the main part. Therefore, when playback is performed according to the information shown in the playlist 1000, the CM included in the recorded program is skipped. Play only the main part. Playback of the recorded program is executed by playing back using the playlist, and the recorded program is played back according to the order in which the play items constituting the playlist are stored.
Therefore, if the order of the play items stored in the playlist is rearranged for one recorded program, the CM and the main part can be reproduced in an order different from that at the time of recording. If the playlist corresponding to is not stored, only a part of the program, for example, only the main part can be reproduced.

Next, a normal PL generation method will be described with reference to FIG. The normal PL is a PL that reproduces the main story and the CM in the same order as when recording. First, in step S301, a new PL is created. At the time when the PL is created, the number of PIs included in the PL is still zero.
Next, PI to be stored in the PL is added by the loop processing from step S302 to S304. In step S303, the first number PI (PI1 in this example) included in the program information is sequentially added to the PL until the last number PI (PI7 in this example) is added to the PL (that is, the PI number). By repeating the number of times corresponding to the number (in this example, 7 times), a normal PL is created.
When playback is performed based on the generated PL by executing the flowchart shown in FIG. 12, the CM and the main part are played back in the same order as when the recorded program is recorded.

  Next, a method for generating a PL in which CMs constituting a program are collected at one head will be described with reference to FIG. First, a new PL is created in step S401. At the time of creation, the number of PIs is still zero. In the loop processing from step S402 to S405, PI corresponding to CM is first added to PL. In this loop processing, the first number PI included in the program information is checked in order from the last number PI, and if the CM / main flag is CM in step S403, the corresponding PI is added to the PL in step S404. If the CM / main part flag is the main part, the process of step S403 is performed for the next number PI without being added to the PL. By repeating this process until the last number of PIs included in the program information is reached, a PL for viewing all CMs before the main part is viewed is generated.

  Thereafter, the main PI is added by the loop processing from step S406 to step S409. In this loop process, the PI of the first number included in the program information is checked in order, and if the CM / main flag is the main part in step S407, it is added to the PL in step S408, and if it is a CM, it is added to the PL. Instead, the process of step S407 is performed for the next PI number. This is repeated until the last number of PIs included in the program information is reached, thereby generating a PL to which the main section playback section is added.

  When playback is performed based on the generated PL by executing the flowchart shown in FIG. 13, all CMs included in the recorded program are played back first, and then the main part is played back. Therefore, the CM that is originally played between the main parts is also reproduced before the main part, and the viewer does not get into the CM that flows between the main parts.

Next, a method for generating a PL that does not include a CM that has already been viewed based on the CM viewing information when the CMs are collected at the top will be described with reference to FIG.
First, in step S501, a new PL is created. At the time of creation, the number of PIs is still zero. In the loop processing from step S502 to step S506, first, the PI of the CM section is added to the PL. In this loop processing, the first number PI included in the program information is checked in order, and if the CM / main part flag is CM in step S503, the process proceeds to step S504. If it is the main part, the process of step S503 is performed for the next number PI without being added to the PL.

Next, in step S504, the CM viewing flag corresponding to the PI being handled is referred to and it is determined whether it has not been viewed or has already been viewed. If it has not been viewed, it is added to the PL in step S505, and if it has already been viewed, it is not added to the PL, and the process of step S503 is performed for the next PI number.
By repeating this until the last number of PIs included in the program information is reached, only unviewed CMs are included in the PL.

  Thereafter, the main PI is added by the loop processing from step S507 to step S510. In this loop processing, the program information PI is checked in order from the beginning, and if the CM / main flag is the main part in step S508, it is added to the PL in step S509. Move on to PI survey. By repeating this process until the last number of PIs included in the program information is reached, the PI corresponding to the main part is added to the PL. With the above processing, only the PIs corresponding to unviewed CMs are collected at the head, and then a PL in which there is only a section corresponding to the main part is generated.

  When playback is performed based on the generated PL by executing the flowchart shown in FIG. 14, an unviewed CM is played back first, and then the main part is played back. Therefore, the viewer does not have to watch the CMs that have already been viewed more than necessary, and does not enter into the CM that flows between the main parts.

  Next, the playback unit 905 and the CM playback monitoring unit 906 will be described. The reproduction unit 905 reproduces the playlist, and the CM reproduction monitoring unit 906 monitors whether the CM portion is skipped, fast-forwarded or normally reproduced during reproduction of the playlist, and is stored in the program configuration table included in the program information. The viewing flag of PI (particularly PI corresponding to CM) is updated.

The reproduction unit 905 will be described with reference to FIGS.
FIG. 15 is a flowchart of the program playback process. When a button for displaying a PL playback menu is operated from the remote controller 803, the recording / playback apparatus 802 that has received the button calls the PL playback menu. In step S802, the program information of the recorded program recorded on the recording medium to be processed is used to output a signal for displaying the program information and reproducible PL. At this time, loop processing (that is, steps S801 and S803) is performed so that step S802 is performed for the number of pieces of program information recorded on the recording medium (that is, the number of recorded programs).

  Receiving the signal for displaying the program information and reproducible PL, the television 801 displays the program information and reproducible PL on the display screen. The timing of sending this signal to the television 801 may be sent every time step S802 is completed, or after performing the processing of step S802 on all the programs recorded on the recording medium, that is, step You may make it send out after exiting the loop process of S801-step S803.

Next, after being displayed on the display screen of the television 801, it waits for further input from the viewer. The input from the viewer is made by, for example, a remote controller 803 or input means (not shown) provided in the recording / playback apparatus.
If the return key of the remote controller 803 is pressed in step S804 (in this case, the return key instructs to stop the PL playback), the displayed program information and the PL are deleted from the display screen of the TV 801, and this screen Displays the previous screen that displays.

  If the return key is not pressed in step S804, the process moves to step S805, and the PL selection with the arrow key and the PL playback start with the enter key are monitored. If neither the arrow key nor the enter key is pressed, the process returns to step S804 again to check whether there is a return key input, but if the up arrow key is pressed, it is one higher on the screen. If PL is selected and the down arrow key is pressed, the PL that is one down on the screen is selected. If the enter key is pressed, the process proceeds to step S806, and reproduction of the selected PL is started. . The reproduction of PL will be described later.

FIG. 16 shows an example of a display screen on which a playlist for a recorded program is displayed using the flowchart shown in FIG. 15. Here, a display screen when the program recorded on the recording medium is the program shown in FIG. An example is shown.
In FIG. 16, the program name “program 1” of the recorded program shown in FIG. 3, program information 1901 indicating the recording date and time, recording channel, normal PL 1902, PL 1903 with CMs headed, and skipped CMs that have been viewed are reproduced. PL 1904 to be displayed is displayed on the display screen of the television 801.
The viewer can select a viewing mode from PL1, PL2, and PL3 by operating the arrow keys on the remote controller 803. When the viewer presses the enter key on the remote controller 803 in the selected state, the recording / playback apparatus 802 In response to the signal from 803, program 1 is reproduced using the selected PL. However, in FIG. 16, PL3 is created as a result of the viewer viewing CM1 and CM2 in the recorded program shown in FIG. 3, and is not displayed when viewing at least the recorded program shown in FIG. Not.

FIG. 17 is a diagram for explaining more specific processing contents of step S802 of FIG.
First, in step S901, processing for displaying program information 1901 recorded on a recording medium is performed.
Next, in step S902, using the program information, the normal PL generation process shown in FIG. 12 is performed, and the process for generating and displaying the normal PL 1902 is performed.
Next, in step S903, the program information is used to perform the PL generation processing that summarizes the CM sections shown in FIG. 13 at the beginning, and the processing for generating and displaying PL 1903 that summarizes the CM sections at the beginning. Do.

Next, in step S904, processing for generating a PL based on the CM viewing information shown in FIG. 14 is performed using the program information.
Next, in step S905, the PL generated in S903 and the PL generated in S904 are compared to determine whether the PLs have the same contents. If it is the same PL, the PL generated in S904 is the same as the PL generated in S903 and is already displayed on the TV screen, so the PL generated in S904 may not be displayed on the TV screen. Move to next program information and PL display.
In step S905, if the contents of the PL generated in step S903 and step S904 are different PLs, the display of PL 1904 excluding the viewed CM is performed in step S906.
By performing the processing as described above, for example, when viewing a recorded program for the first time, or when not viewing any CM in the recorded program, only the PL described in FIGS. 12 and 13 is displayed on the screen. It becomes possible.

18 to 19 are diagrams for explaining more specific processing of the PL reproduction processing in step S806.
The reproduction of PL is a process of reproducing the PI stored in the PL in order from the top. When PL2 shown in FIG. 16 is selected and PL playback is instructed, CM1, CM2,. . . CM4, main part 1, main part 2, main part 3 are reproduced in this order.
FIG. 18 is a flowchart for explaining an example for realizing the above-described process. In step S602, the process of reproducing the PI in the target PL is performed, and step S602 can be repeatedly performed. The above-described processing can be performed by performing a loop processing (that is, steps S601 and S603).

The number of repetitions is the number of PIs stored in the selected PL. For example, if the PI stored at the head of the PL to be reproduced is first reproduced, and when the reproduction of this PI is completed, the next stored PI is reproduced, the process is performed. Playback is performed in order from the first PI.
In step S602, if a predetermined condition is satisfied during the reproduction of the PI, the viewing flag in the program configuration table in the program information is updated. For example, in this PI playback process, the CM playback monitoring unit 906 updates the CM viewing flag to “viewed” if the PI corresponding to the CM is normally played back from the IN point to the OUT point, and performs operations such as skip, stop, and fast forward. If the section from the IN point to the OUT point is not normally reproduced, the CM viewing flag is not updated and is left unviewed.
By doing so, it becomes possible to update the viewing flag in accordance with the viewing of the CM, and in the subsequent viewing of the recorded program, it is possible to create a PL from which the viewed CM has been deleted.

FIG. 19 is a diagram for explaining an example of specific processing in PI reproduction processing.
Next, how the CM playback monitoring unit 906 performs viewing monitoring will be described with reference to FIG. 19. First, in step S701, the “normal playback flag” is initialized to 1.
In step S702, reproduction is started from the IN point of the PI to be reproduced. When reproduction is started, input from the viewer is monitored in steps S703, S704, and S705.
Specifically, in step S703, it is checked whether or not a skip operation has been input. If a skip operation is input, the process proceeds to playback of the next PI. At this time, the CM viewing flag is moved to the next PI without being updated.
Next, in step S704, it is checked whether or not a stop operation is input. If a stop operation is input, the reproduction of the PL is terminated. Also at this time, the playback of the PI is terminated without updating the CM viewing flag.

Next, in step S705, it is checked whether or not a fast-forward operation is input. If a fast-forward operation is input, the process proceeds to step S706, and if there is no input, the process proceeds to step S708. Step S706 is processing when a fast-forward playback is instructed. In this processing, the “normal playback flag” is set to 0 and fast-forward playback is executed. In step S705, if fast-forward playback is not instructed, the process proceeds to step S708. At that time, the “normal reproduction flag” remains 1, and does not become 0.
In step S708, it is determined whether or not the time at the playback point has reached the OUT point of the PI to be played back. If it has not yet reached the OUT point, the process returns to step S703, and the skip operation and stop are performed again by remote control operation. Monitor the input of operation and fast-forward operation.

If it is determined in step S708 that the time at the playback point has reached the OUT point of the PI to be played back, the process proceeds to step S710.
In step S710, it is checked whether or not the “normal playback flag” remains 1, and if it is 1, the viewing flag is updated to “viewed” and the playback of the PI to be played is terminated.
If the “normal playback flag” is 0, it is determined in step S705 that a fast-forward operation has been performed in the middle, and thus playback of the PI to be played back is terminated without updating the viewing flag.
After that, if there is a PI to be reproduced next by loop processing S601 to S603 shown in FIG. 18, the process from step S701 is performed on the next PI to perform the process of reproducing the next PI.

Next, the display unit 904 will be described. The display unit 904 generates recorded program information and a playlist corresponding to the program information in the program organization unit 903, and outputs a signal for displaying them on the television screen as a GUI to the television 801. The GUI is displayed on the display screen based on the received signal.
FIG. 16 shows an example of a display screen displayed on the television 801 when PL playback is performed. For example, the display screen as shown in FIG. 16 displays recorded program information 1901 and playable playlists 1902-1904 in the corresponding recorded program by pressing the menu key of the remote controller 803.
Recorded program information 1901 displays the program name, recording date and time, and recording channel included in the program information of the corresponding recorded program. Playlists 1902-1904 display playable playlists for the corresponding recorded programs, and any one of them can be selected with the arrow keys of the remote controller 803. When a playlist is selected with the GUI and the enter key of the remote controller 803 is pressed, reproduction of the selected playlist is started.

Next, what kind of play list the display unit 904 displays based on the CM viewing information during playback after program recording will be described with reference to FIGS.
FIG. 20 shows the PL displayed when PL playback is performed for the first time after recording the program 1 shown in FIG. On the display screen of the television 801, two types of PL1101 and PL1102 with CMs at the head are displayed. For example, the display is performed in more detail than the flowchart shown in FIG. 15 (particularly step S802) by executing the flowchart shown in FIG. 17 (particularly step S902 to step S906).
Normally, PL1101 is a playlist generated in step S902 in FIG. A PL 1102 with CMs at the head is a playlist generated in step S903 in FIG. The PL excluding the CM that has already been viewed in step S904 in FIG. 17 has the same playlist as 1102 because there is no CM that has been viewed, and is not displayed on the screen by the processing in step S905 in FIG. As shown in FIG. 2, two PLs are displayed, which are a normal PL and a PL with CMs at the head.

FIG. 21 shows the PL displayed on the display screen of the television 801 when the program 1 shown in FIG. 3 is recorded and a part of the CM is viewed and the PL display process described in FIGS. 15 and 17 is performed. is there.
At this time, the viewed CMs are CM1 and CM2, and the unviewed CMs are CM3 and CM4. In this case, three PLs are displayed: a normal PL 1201, a PL 1202 with CMs headed together, and a PL 1203 based on CM viewing information. 1201 and 1202 are the playlists generated in steps S902 and S903 in FIG.
The playlist generated in step S904 in FIG. 17 is a playlist excluding the viewed CMs generated according to the flowchart shown in FIG. 14, and since CM1 and CM2 have been viewed, these playlists are generated. It is not included, and is determined as a playlist different from PL 1202 in step S905 shown in FIG. 17, and is displayed as PL 1203 in FIG. 21 as a result of display processing in step S906.

FIG. 22 shows the PL displayed on the display screen of the television 801 when the program 1 shown in FIG. 3 is recorded and all the CMs are viewed and the PL display process described in FIGS. 15 and 17 is performed. .
In this case, three PLs are displayed: a normal PL 1301, a PL 1302 with CMs headed together, and a PL 1303 based on CM viewing information. Since all commercials have been viewed in the PL 1303 based on the commercial viewing information, no commercials are included and only the main part is reproduced.

  By generating various playlists based on the CM viewing information as described above, the main part can be viewed without seeing the CM once viewed, so the convenience of the viewer is improved, and the CM for the sponsor. If you don't watch the video, you will not be able to choose to play only the main part.

  The present invention provides a recording / playback of a program that provides a viewable form of viewing for both a viewer who views a recorded program including a CM and a sponsor who provides the program during time-shifted playback for viewing the recorded program later. The present invention is useful for an apparatus, a recording / reproducing method, a recording / reproducing program, a computer-readable recording medium on which the recording / reproducing program is recorded.

It is a figure explaining the home theater system comprised using the recording / reproducing apparatus of this Embodiment. It is a block diagram of the recording / reproducing apparatus of this Embodiment. It is a figure showing the structure of the video recording program recorded on the video recording / reproducing apparatus of this Embodiment. It is the figure showing the structure of AV clip It is a figure showing AV clip information It is a figure which shows concretely that AV clip information has shown the address on AV clip It is a figure showing the video recording program information produced | generated with the video recording / reproducing apparatus of this Embodiment. It is a figure showing the program structure table of the recorded program produced | generated with the recording / reproducing apparatus of this Embodiment. 4 is a flowchart of a program information generation process at the time of recording in the recording / reproducing apparatus of the present embodiment. It is a flowchart of AV packet writing processing at the time of recording It is the figure which represented the play list schematically It is a flowchart of normal PL generation processing It is a flowchart of a PL generation process in which CMs are put together at the PL head. It is a flowchart of a PL creation process in which CMs are put together at the top of the PL, and CMs that have been viewed are excluded. It is a flowchart of a program reproduction process It is an example of PL selection screen display at the time of program playback It is a flowchart of program information display and reproducible PL creation / display processing It is a flowchart of PL reproduction processing It is a flowchart of PI reproduction processing. It is an example of PL displayed when PL playback is performed for the first time after program recording It is an example of PL displayed after watching a part of CM after recording a program It is an example of PL displayed after viewing all CMs after recording the program

Explanation of symbols

101 Program 102 Main story and CM that make up the program
103 PI that composes a program
104 AV clip information 104a Time part of time-address conversion table 104b Address part of time-address conversion table 105 AV clip 201 Video stream 202 Video stream converted to PES_packet 203 Video PES_packet converted to TS_packet 205 Audio PES_packet converted to TS_packet 207 Audio stream 701 Program name 702 Recording date and time 703 Recording channel 704 Program configuration table 704a Play item (PI) number 704b CM / main part flag 704c Viewing flag 801 TV 802 Recording / playback device 803 Remote control unit 804 DVD or BD-ROM device Disk 901 tuner 902 program structure extracting section 903 program scheduling unit 904 display unit 905 reproducing unit 906 CM playback monitor 908 DVD / BD drive 909 hard disk drive 910 MPEG decoder 912 the signal combining unit 1000 playlist (PL)
1001 Play item (PI)
1101 Normal PL
1102 PL that puts CM at the top of the PL
1201 Normal PL
1202 PL that puts CM at the top of the PL
1203 PL that puts CMs at the beginning of the PL and does not play the CMs that have already been viewed
1301 Normal PL
1302 PL with CM at the top of the PL
1303 PL that plays only the main part
1901 Program information 1902 Normal PL
1903 PL that puts CM at the top of the PL
1904 PL that puts CMs at the top of the PL and does not play the CMs that have already been viewed

Claims (8)

A recording / playback apparatus for recording a CM and a program having a main part divided by the CM onto a recording medium and playing back the program recorded on the recording medium,
A program structure extracting unit for detecting the start position and end position of the main part and the start position and end position of CM included in the program to be recorded and recording them on the recording medium;
It is monitored whether or not the reproduction from the start position to the end position of the CM included in the program satisfies a predetermined condition. If the predetermined condition is satisfied, information indicating that the reproduced CM has been viewed is displayed. CM playback monitoring unit for recording on a recording medium;
A program organizing unit that generates a playlist in which the main content included in the program recorded on the recording medium and the reproduction order of the CM are rearranged based on the viewed information of the reproduced CM recorded by the CM reproduction monitoring unit. When,
A display unit for outputting a signal for displaying the playlist generated by the program organization unit;
A recording / reproducing apparatus comprising: a reproducing unit that reproduces a main part and a CM in accordance with a reproduction order based on the generated playlist. The program organizing unit rearranges the playback order of the main part and the CM included in the program recorded on the recording medium based on the viewed information of the reproduced CM recorded by the CM reproduction monitoring unit. Multiple
The display unit outputs a signal for displaying a plurality of playlists generated by the program organization unit,
The recording / playback apparatus according to claim 1, wherein the playback unit is configured to play back a selected playlist among the plurality of generated playlists.   The program organizing unit, when all the CMs included in the recorded program have not been viewed, plays the rearranged playback order so that all the CMs are played before the main part included in the program. The recording / playback apparatus according to claim 1, wherein a list is generated.   When a part of the CM included in the recorded program has already been viewed, the program organization unit has already been viewed among the main part included in the recorded program and the CM included in the recorded program. Only a CM excluding the CM is a reproduction target, and a play list in which the reproduction order is rearranged so that the reproduction target CM is reproduced before the main part included in the program is generated. The recording / reproducing apparatus according to claim 1.   The said program organization part produces | generates the play list which made reproduction | regeneration object only the main part contained in the said program, when all the CMs contained in the said recorded program have already watched. Recording / playback device. A recording and reproducing method for recording a CM and a program having a main part divided by the CM onto a recording medium, and reproducing the program recorded on the recording medium,
A program structure extracting step of detecting the start position and end position of the main part and the start position and end position of the CM included in the program to be recorded and recording them on the recording medium;
It is monitored whether or not the reproduction from the start position to the end position of the CM included in the program satisfies a predetermined condition. If the predetermined condition is satisfied, information indicating that the reproduced CM has been viewed is displayed. CM playback monitoring step for recording on a recording medium;
Program organization step for generating a playlist in which the main content included in the program recorded on the recording medium and the reproduction order of the CMs are rearranged based on the viewed information of the reproduced CM recorded by the CM reproduction monitoring step. When,
A display step for outputting a signal for displaying the playlist generated in the programming step;
A recording / playback method comprising a playback step of playing back a main part and a CM in accordance with a playback order based on the generated playlist. A recording / reproducing program for recording a CM and a program having a main part divided by the CM onto a recording medium and reproducing the program recorded on the recording medium,
A program structure extracting step of detecting the start position and end position of the main part and the start position and end position of the CM included in the program to be recorded and recording them on the recording medium;
It is monitored whether or not the reproduction from the start position to the end position of the CM included in the program satisfies a predetermined condition. If the predetermined condition is satisfied, information indicating that the reproduced CM has been viewed is displayed. CM playback monitoring step for recording on a recording medium;
Program organization step for generating a playlist in which the main content included in the program recorded on the recording medium and the reproduction order of the CM are rearranged based on the viewed information of the reproduced CM recorded by the CM reproduction monitoring step. When,
A display step for outputting a signal for displaying the playlist generated in the programming step;
A recording / reproducing program comprising a reproducing step of reproducing a main part and a CM in accordance with a reproduction order based on the generated playlist. A computer-readable recording medium for recording a recording program for recording a CM and a program having a main part divided by the CM onto a recording medium, and reproducing the recorded program on the recording medium,
A program structure extracting step of detecting the start position and end position of the main part and the start position and end position of the CM included in the program to be recorded and recording them on the recording medium;
It is monitored whether or not the reproduction from the start position to the end position of the CM included in the program satisfies a predetermined condition. If the predetermined condition is satisfied, information indicating that the reproduced CM has been viewed is displayed. CM playback monitoring step for recording on a recording medium;
Program organization step for generating a playlist in which the main content included in the program recorded on the recording medium and the reproduction order of the CM are rearranged based on the viewed information of the reproduced CM recorded by the CM reproduction monitoring step. When,
A display step for outputting a signal for displaying the playlist generated in the programming step;
A computer-readable recording medium for storing a recording / reproducing program, comprising a reproducing step of reproducing a main part and a CM in accordance with a reproduction order based on the generated playlist.

Images