JP2006229566A - Apparatus, method, and program for reproducing and apparatus and method for recording and reproducing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently reproduce a desired part of a serial program without cumbersome operations such as rewinding, fast forwarding, variable-speed reproduction and the like. <P>SOLUTION: When reproducing the serial program recorded on a recording medium, the preceding contents are compared with the present contents, and the opening and the ending, where the contents are the same, are reproduced at a speed higher than the ordinary reproduction speed. Further, commercial messages are detected and the detected commercial messages are reproduced at a speed higher than the ordinary reproduction speed. Moreover, an extended program part recorded by the extension of a baseball program or the like in a video recording reservation program is detected, and the detected extended program part is also reproduced at a speed higher than the ordinary reproduction speed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a playback device, a playback method, a playback program, a recording / playback device, and a recording / playback method, and in particular, a playback device that controls playback of overlapping portions each time a program serialized in television broadcasting is played back, and playback The present invention relates to a method, a reproduction program, a recording / reproducing apparatus, and a recording / reproducing method.

  In recent years, recording / playback apparatuses for recording television broadcast programs on a hard disk are becoming widespread. Various proposals have been made to improve the convenience of such a recording / playback apparatus. For example, in the following Patent Document 1, a user preference information database is constructed, and the preference degree is based on preference information specified by the user and broadcast program information (hereinafter referred to as EPG (Electrical Program Guide) information as appropriate). There is described an information processing system capable of quickly recording a program suitable for preference information by automatically recording a high program.

JP 2004-80620 A

  For example, serials such as dramas and animations (hereinafter referred to as “series” as appropriate) broadcast every week are subject to automatic recording, and a plurality of programs are automatically recorded on a hard disk as a storage medium. Usually, a large number of programs are recorded on the hard disk, and in order to make effective use of the capacity of the hard disk and to watch a specific series of programs in the future, other programs from the hard disk can be deleted. Recording media such as a DVD (Digital Versatile Disc) and a Blu-ray Disc (registered trademark) are recorded.

  Usually, a series program has the structure of the beginning part of the program (hereinafter referred to as “opening” as appropriate), the main part and the last part of the program (hereinafter referred to as “ending” as appropriate), and the opening and ending are the same each time. There are often. Therefore, when playing back a series of programs recorded on the storage medium or the hard disk, it is troublesome for the user to view each opening or ending each time.

  Many programs include commercials (hereinafter referred to as CM). Furthermore, in a recording / playback apparatus having a reserved recording function, an undesired program may be partially recorded due to an extension of a baseball program or the like in reserved recording.

  Therefore, during playback, the user skips unnecessary portions such as unwanted portions such as overlapping portions, commercials, and undesired program portions that have been recorded by extension of baseball programs in scheduled recording, etc. Had been operated.

  However, since operations such as fast-forward and fast-forward playback are manually performed by the user using a remote commander or the like, the operations are troublesome and it has been difficult to accurately skip to a desired portion. For example, the operation is very troublesome, such as skipping an unnecessary part, fast-forwarding, going too far, and rewinding.

  Accordingly, an object of the present invention is to provide a playback device, a playback method, a playback program, a recording / playback device, and a recording / playback method capable of efficiently playing back a desired portion without performing troublesome operations such as rewinding, fast forward and fast forward playback. It is to provide.

In order to solve the above-described problem, a first aspect of the present invention provides a playback apparatus for playing back content from a recording medium on which a plurality of contents corresponding to a plurality of programs related to a continuous program are recorded.
A first flag indicating whether the content content is the same between the content to be played and other content related to the continuous program is recorded in association with the content to be played;
This is a playback device that plays back by skipping substantially the same content based on the first flag.

According to a second aspect of the present invention, there is provided a reproduction method for reproducing content from a recording medium on which a plurality of contents corresponding to a plurality of programs related to a continuous program are recorded.
A first flag indicating whether the content content is the same between the content to be played and other content related to the continuous program is recorded in association with the content to be played;
This is a reproduction method for reproducing substantially skipped portions having the same contents based on the first flag.

According to a third aspect of the present invention, there is provided a reproduction method program for reproducing content from a recording medium on which a plurality of contents corresponding to a plurality of programs related to a continuous program are recorded.
A first flag indicating whether or not the content content is the same between the content to be reproduced and other content related to the continuous program is recorded in association with the content to be reproduced. Based on the first flag This is a reproduction program for causing a computer to execute a reproduction method for substantially skipping portions having the same contents.

According to a fourth aspect of the present invention, there is provided a recording / reproducing apparatus for recording a plurality of contents corresponding to a plurality of programs related to a continuous program on a recording medium and reproducing the contents from the recording medium.
A feature amount extraction unit that extracts feature amounts of content to be reproduced and other content related to the continuous program;
A comparison unit that compares the feature amounts extracted by the feature amount extraction unit and detects whether the contents are the same;
A flag generation unit that generates a first flag indicating whether the content is the same from the comparison result of the comparison unit;
This is a recording / reproducing apparatus that reproduces by skipping substantially the same content based on the first flag.

According to a fifth aspect of the present invention, there is provided a recording / reproducing method for recording a plurality of contents corresponding to a plurality of programs related to a continuous program on a recording medium and reproducing the contents from the recording medium.
A feature amount extraction unit for extracting feature amounts of content to be recorded or reproduced and other content related to the continuous program;
A comparison unit that compares the feature amounts extracted by the feature amount extraction unit and detects whether the contents are the same;
A flag generation unit that generates a first flag indicating whether the content is the same from the comparison result of the comparison unit;
This is a recording / reproducing method in which a portion having the same content is substantially skipped and reproduced based on a first flag.

  According to the present invention, when a plurality of continuous programs recorded on a recording medium are reproduced, overlapping portions such as opening and ending can be substantially skipped. Furthermore, the CM can be cut. Since these reproduction controls are automatically performed, there is an advantage that less labor is required compared to manual operations such as fast forward and fast forward reproduction.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an example of the configuration of a recording / reproducing apparatus according to an embodiment of the present invention.

  The recording / playback apparatus 1 receives a digital broadcast signal obtained by performing transmission path coding on a transport stream (TS: Transport Stream) of MPEG (Moving Picture Experts Group) -2 system, and receives a desired digital broadcast signal from the received digital broadcast signal. The program is recorded on a recording medium by the MPEG-2 system. The recording / reproducing apparatus 1 reproduces a desired program from programs recorded on a recording medium by the MPEG-2 method. In this example, the MPEG-2 system is used as a compression encoding system for video signals and audio signals, but the compression encoding system is not particularly limited to the MPEG-2 system.

  The recording / playback apparatus 1 includes a tuner 2, a demodulation circuit 3, a descrambler 4, a card interface (I / F) 5, a demultiplexer (DEMUX) 6, a video decoder 7, an audio decoder 8, a feature amount extraction circuit 9, and a presentation processing circuit. 10, a signal processing unit comprising a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a controller 14, a timer circuit 15 and a remote control interface (I / F) 16. And a recording unit comprising a hard disk (HDD) 17 and a DVD (Digital Versatile Disc) drive 18.

  The tuner 2, the demodulation circuit 3, the descrambler 4, the card interface 5, the demultiplexer 6, the video decoder 7, the audio decoder 8, the feature amount extraction circuit 9, the presentation processing circuit 10, and the controller 14 are connected via a common bus. ing. The controller 14 is also connected to the hard disk 17 and the DVD drive 18 via a bus.

  The tuner 2, demodulator 3, descrambler 4, card interface 5, demultiplexer 6, video decoder 7, audio decoder 8, feature quantity extraction circuit 9, and presentation processing circuit 10 constituting the signal processing unit are respectively connected via the controller 14. And is controlled based on a control signal supplied from the CPU 11.

  The tuner 2 is connected to an antenna 19 capable of receiving a digital broadcast signal, and performs channel selection and detection of a selected channel for the digital broadcast signal supplied from the antenna 19. The signal selected and detected by the tuner 2 is supplied to the demodulation circuit 3.

  The demodulation circuit 3 demodulates the signal supplied from the tuner 2 and decodes an MPEG-2 transport stream (hereinafter simply referred to as a stream). The stream decoded by the demodulation circuit 3 is supplied to the descrambler 4.

  The descrambler 4 performs descrambling when the stream program signal supplied from the demodulation circuit 3 is scrambled. The descrambler 4 performs descrambling using, for example, a CAS (Condition Access System) function. The recording / playback apparatus 1 can be loaded with the IC card 20 via the card interface 5, and the descrambler 4 can receive the card interface 5 when the stream supplied from the demodulation circuit 3 is limited reception, for example. The key data stored in the IC card 20 is acquired via the scramble, and the scramble is released by decrypting the encryption in the broadcast signal with the acquired key data.

  During the live broadcast viewing operation, the stream processed by the descrambler 4 is supplied to the demultiplexer 6. During the recording operation, the stream processed by the descrambler 4 is also supplied to the recording medium of the recording unit via the controller 14.

  For example, when a stream is recorded on the hard disk 17, the stream is supplied from the descrambler 4 to the hard disk 17 via the controller 14, and the stream is recorded on the hard disk 17 as recorded content.

  When a stream is recorded on a DVD, the stream is supplied from the descrambler 4 to the DVD drive 18 via the controller 14, and the stream is recorded on the DVD as recorded content. In this example, the stream recorded on the hard disk 17 is recorded on the DVD.

  During the reproduction operation, the stream recorded as the recorded content on the recording medium of the recording unit is read, and the read stream is supplied to the demultiplexer 6 via the controller 14. For example, when playing back a stream recorded on the hard disk 17, the stream is read from the hard disk 17 and the read stream is supplied to the demultiplexer 6 via the controller 14. When playing back a stream recorded on a DVD, the stream is read from the DVD by the DVD drive 18, and the read stream is supplied to the demultiplexer 6 via the controller 14.

  The hard disk 17 and the DVD drive 18 constituting these recording units are controlled based on control signals supplied from the CPU 11 via the controller 14, respectively. In this example, the hard disk 17 and the DVD drive 18 constitute a recording unit. However, the type and number of recording media constituting the recording unit are particularly limited as long as they are suitable for stream recording / playback. It is not a thing. For example, the DVD drive 18 may be a drive for recording / reproducing on a Blu-ray Disc (registered trademark).

  The demultiplexer 6 separates video packets and audio packets from the stream supplied from the descrambler 4 during live broadcast viewing operation and from the hard disk 17 or DVD drive 18 during reproduction operation. Further, the demultiplexer 6 acquires EPG data from the stream supplied from the descrambler 4. The EPG data is automatically acquired by the demultiplexer 6 when the current time reaches a predetermined time at which EPG data can be acquired from the broadcast signal. For example, EPG data is periodically acquired at a predetermined time every day.

  Based on the packet identifier (PID) described in the header of the packet, the demultiplexer 6 is a video packet, audio packet, data packet, PSI (Program Specific Information) and SI (Service Information) packet of a desired program. Isolate. In SI, various information such as program channel, title, start date and time, broadcast duration, detailed contents, progress status, genre, and series information are transmitted. EPG data is acquired by reading SI.

  The EPG data acquired by the demultiplexer 6 is supplied to the hard disk 17 via the controller 14 and recorded as program information on the hard disk 17.

  Thus, program information is acquired from EPG data or the like. The program information is information related to a program including the title, genre, channel, broadcast start date / time and broadcast end date / time, detailed contents, information on a series, and the like associated with each program. The recorded content recorded on the hard disk 17 is recorded in association with program information of the corresponding program, for example, by a file name. The program information is used in management of recorded contents, creation of a program guide, a scheduled recording function and a playback function, which will be described later.

  Note that the program information is not limited to being obtained from the EPG data, but may be read from a detachable recording medium such as a DVD or an IC card, for example, or the recording / playback apparatus 1 may be provided with a network interface via the network. May be taken in.

  The video packet separated by the demultiplexer 6 is supplied to the video decoder 7. The video decoder 7 decodes the video signal from the video packet supplied from the demultiplexer 6. The video signal decoded by the video decoder 7 is supplied to the feature amount extraction circuit 9. The video signal processed by the feature amount extraction circuit 9 is supplied to the presentation processing circuit 10.

  The feature amount extraction circuit 9 extracts a feature amount used in a scheduled recording function described later from the video signal supplied from the video decoder 7. The feature amount is, for example, digital video data per frame or data extracted from original video data. The feature quantity extracted by the feature quantity extraction circuit 9 is temporarily recorded on a recording medium such as the RAM 13 via the controller 14 so that the program and the position in the program can be identified.

  In the scheduled recording function to be described later, whether or not there is a portion having the same content in two programs is determined by comparing the feature amounts of the two programs. For example, the absolute value of the difference between the pixel data is calculated for frames that are temporally corresponding to two programs, and it can be determined whether the absolute values are the same based on the magnitude of the values accumulated over one frame. In this case, two programs that have already been recorded and stored in the hard disk 17 are used. In that case, two video decoders are used and a comparison is made with respect to the decoded video signal. Alternatively, when one of the two programs is stored in the hard disk 17, it may be compared with the other program stored in the hard disk 17.

  Note that the feature amount is limited to digital video data in units of frames as long as it can be determined whether or not a portion having the same content exists in two programs by comparison with a feature amount extracted from another program. Not a thing. For example, when the recording / playback apparatus 1 handles analog video data, the feature amount may be analog video data. Further, as the feature amount, digital video data in which the number of pixels or the number of frames is reduced by thinning out, partial video data in one frame, or video data in a plurality of frames may be used.

  The presentation processing circuit 10 presents the video signal that has passed through the feature amount extraction circuit 9 to the user as required when executing each process, such as a menu screen, a program guide, and a recording that is displayed during a playback operation. Add a list of completed programs. The video signal processed by the presentation processing circuit 10 is output from the recording / playback apparatus 1. The video signal output from the recording / playback apparatus 1 is supplied to a display device (not shown), and an image based on the video signal is displayed.

  On the other hand, the audio packet separated by the demultiplexer 6 is supplied to the audio decoder 8. In the audio decoder 8, the audio signal is decoded from the audio packet supplied from the demultiplexer 6. The audio signal decoded by the audio decoder 8 is output from the recording / playback apparatus 1. The audio signal output from the recording / playback device 1 is supplied to a sound output device such as a speaker (not shown), and the sound based on the audio signal is played back.

  The program information related to the recorded program is extracted from the EPG data by the demultiplexer 6 during the recording operation. The program information includes a program name, a broadcast date and time, a description about time extension, and the like. The program information of the recorded program taken out by the demultiplexer 6 is supplied to the hard disk 17 via the controller 14 and recorded on the hard disk 17. Information about the recording reservation method is also recorded on the hard disk 17.

  Program information of the recorded program, for example, title information, is read from the hard disk 17 when the recorded program is played back, and is used by the presentation processing circuit 10 to create a recorded program list to be added to the video signal.

  Further, a flag used at the time of reproduction described later is recorded on the hard disk in association with the recorded program. The flag is recorded on the hard disk 17 in association with the recorded program. The types of flags are [extended], [previous], [CM], [sports], [same], [different], and [unknown]. The flags “with extension” and “with previous time” are determination flags used in the determination process at the time of recording. [CM], [Sports], [Same], [Different] and [Unknown] flags are feature flags used in reproduction. That is, the feature flag is used to specify the position of the start point and the end point at which playback is controlled during playback. The position of the feature flag can be adjusted by the user, and the user can move the place where reproduction is controlled to a desired position.

  The ROM 12, RAM 13, timing circuit 15, and remote control interface 16 constituting the control unit are connected to the CPU 11 via the controller 14, and are controlled based on control signals supplied from the CPU 11 via the controller 14.

  When the recording / playback apparatus 1 is powered on, the CPU 11 reads a program stored in the ROM 12 and activates the application. The RAM 13 is used as a work memory space for storing temporary data when the CPU 11 executes a program. As the program executed by the CPU 11, a program recorded on a removable recording medium such as a DVD or a memory card can be installed. The program may be downloaded from a predetermined server or the like via a network provided with a network interface connectable to the network such as the Internet.

  The timer circuit 15 manages time information such as the current time. The timer circuit 15 realizes processing related to time such as display of the current time, reservation recording, acquisition of program information, comparison of feature amounts, and the like included in the recording / playback apparatus 1. The current time is automatically acquired from a broadcast signal, for example.

  An operation input to the recording / playback apparatus 1 is performed by a remote control commander (hereinafter simply referred to as a commander) 21. A remote control signal by infrared rays or the like transmitted from the commander 21 by a user operation or the like is received by a receiving unit (not shown) included in the recording / playback apparatus 1 and supplied to the CPU 11 via the remote control interface (I / F) 16 and the controller 14. Is done. CPU11 controls each part which comprises the video recording / reproducing apparatus 1 based on a remote control signal. Note that it is also possible to directly operate the recording / reproducing apparatus 1 using an input unit such as an operation button (not shown) of the recording / reproducing apparatus 1.

  The recording / playback apparatus 1 has a reserved recording function and a playback function in addition to normal functions such as a recording function and a program guide display function. These functions are realized by the CPU 10 appropriately controlling each part of the recording / playback apparatus 1 via the controller 14.

  In one embodiment of the present invention, by specifying a favorite genre, keyword, time zone, and the like, a program that matches a condition is searched from the EPG and automatically recorded. Also, as functions related to terrestrial waves, there are functions for program name reservation and sports extension support. The program name reservation is a function for setting a program name for recording reservation and recording a program with the program name based on EPG program information. For sports extension support, when sports such as baseball and soccer are scheduled to be broadcast before the program reserved for recording, the maximum extension time is calculated based on the information of the EPG data. This is a process of automatically extending the recording end time. Such processing is called sport extension. Failure to record a program reserved for recording can be prevented by extending the sport.

  FIG. 2 is a flowchart for explaining a recording reservation function for sports extension. This function is a process executed under the control of the CPU 11 and the controller 14.

  First, a user makes a recording reservation for a desired program using EPG or the like (step S1). In step S2, it is determined whether or not the current time is the recording start time of the recording reservation.

  If it is determined in step S2 that the current time is not the recording start time of the recording reservation, the process of step S2 is repeated until the current time becomes the recording start time. If it is determined in step S2 that the current time is the recording start time, recording starts (step S3) and recording is performed until the recording end time.

  In step S3, when recording starts, an extension determination process is performed (step S4). As described above, the extension determination process is a process for recording a program reserved for recording to the end even if the broadcast time is extended in a sports program such as soccer or baseball. The extension determination process S4 may be performed at the time of recording reservation.

  When the process of step S4 ends, a series determination process is performed (step S5). The series determination process is a process for determining whether or not it is a series using the recording reservation method and the program information of the program recorded on the hard disk, and whether or not the previous program of the same series has been recorded. .

  When the process of step S5 ends, it is determined whether there is a series and previous program (step S6). If it is determined in step S6 that there is no series or previous program, the reserved recording process ends. If it is determined in step S6 that there is a series and previous program, flag generation processing is performed. The generated flag is recorded in association with the recorded content on the hard disk 17, for example (step S7). When the process of step S7 ends, the scheduled recording process ends.

  FIG. 3 is a flowchart showing an example of the extension determination process executed under the control of the CPU 11 and the controller 14.

  In the extension determination process, it is first determined whether or not the recording start time of the recording reservation is within, for example, 6:00 pm within the extended program time zone (step S11). The extended program time zone means a time zone in which the broadcast time of the program may be extended. The broadcast time is often extended in sports programs such as soccer and baseball broadcasted in the evening, and daytime programs are hardly extended. Therefore, the extended program time period is from 6 pm to the end time of the broadcast. The setting of the extended program time zone may be arbitrarily changed by the user.

  If it is determined in step S11 that the recording start time of the recording reservation is not after 6:00 pm, the extension determination process ends without performing the sport extension. If it is determined in step S11 that the recording start time is after 6:00 pm, the program information on the same channel as the recorded program and from 6:00 pm onward until the recording start time of the recording reservation may be extended. It is determined whether or not there is a certain program (step S12).

  For example, the program information genre is “sports” and the program information includes the word “extension” in the program information is determined as a program that may be extended, and the program that does not have the possibility of extension. Judged as a program.

  If it is determined in step S12 that there is no program that may be extended before the recording start time, the extension determination process ends. If it is determined in step S12 that there is a program that may be extended, it is determined whether or not a description of the extended time exists in the program information (step S13).

  The description of the extension time may be indicated by a relative time with respect to the scheduled broadcast time of the program guide or the like, such as an extension of 15 minutes, or it may be extended to 9:15 pm It may be represented by

  If it is determined in step S13 that the description of the extension time exists, the recording end time of the recording reservation is extended by a time corresponding to the description of the extension time (step S14). If it is determined in step S13 that there is no description of the extended time, the recording end time is extended by a preset default time, for example, 30 minutes (step S17). This set time may be arbitrarily changed by the user.

  If the recording reservation end time is extended in step S14 or step S17, it is determined whether or not the extended recording end time overlaps with the recording time of another recording reservation that is reserved for recording thereafter (step S15). ). If it is determined in step S15 that the recording times overlap, the recording end time is extended until the recording start time of the subsequent recording reservation (step S16), and the extension determination process ends. If it is determined in step S15 that the recording times do not overlap, the extension process ends. Note that a priority may be set for a program reserved for recording, and a program with a higher priority may be preferentially recorded.

  In the recorded program in which the recording end time is extended in step S14 or step S17, a flag “with extension” is stored in the hard disk 17 so that the recording time is extended. The “with extension” flag is used by the flagging process (step S7 (see FIG. 2)).

  In the extension determination process shown in FIG. 3, it is determined in step S11 whether or not the recording start time of the recording reservation is after 6:00 pm in order to quickly narrow down the programs that may be extended. However, the process of step S11 can be omitted.

  An example of recorded content when the sport is extended will be described with reference to FIG. FIG. 4A shows a broadcast schedule in the same channel. That is, a baseball broadcast is performed from 7 pm to 9 pm, a drama 1 is broadcast from 9 pm to 10 pm, a drama 2 is broadcast from 10 pm to 11 pm, and 11 pm It shows that the news broadcast is scheduled to run from midnight until midnight.

  FIG. 4B shows the actual broadcast time. That is, the baseball broadcast is extended by 30 minutes and broadcast from 7:00 pm to 9:30 pm, so that the broadcast time zone of drama 1 is changed from 9:30 pm to 10:30 pm, and the broadcast time of drama 2 This indicates that the band is from 10:30 pm to 11:30 pm, and the broadcast time of the news program is from 11:30 pm to 0:30 am.

  When the recording of the broadcast of the drama 2 is reserved based on the schedule shown in FIG. 4A, the recording is performed only from 10 pm to 11 pm. However, by performing the extension determination process, as shown in FIG. 4C, the recording end time is extended by 30 minutes of the recording extension time due to the sports extension, and the broadcast from 10 pm to 11:30 pm is recorded. As a result, as shown in FIG. 4D, the actually recorded content is that the drama 1 broadcast for the shift time is recorded in the front, and then the drama 2 broadcast is recorded. Drama 2 can be recorded.

  Next, the series determination process will be described. 5 and 6 are flowcharts showing the flow of the series determination process executed under the control of the CPU 11 and the controller 14. Originally, it is a flowchart showing a series of processing, but it is divided into two because of the limitation of the drawing space.

  In the series determination process, first, the setting of the recording reservation method for the recorded program is checked (step S21). The setting of the recording reservation method is designated by the user when a program is reserved for recording using a program guide or the like. Information regarding the setting method of the recording reservation method, information such as recording date and time, and the like are stored for each recorded program on the hard disk 17.

  In this example, as a recording reservation method, any one of a daily reservation from Monday to Sunday, a daily reservation from Monday to Saturday, a daily reservation from Monday to Friday, and a weekly reservation can be specified. If none is specified, it is a single reservation for recording only this time.

  It is determined whether or not the setting of the recording reservation method checked in step S21 is a daily reservation from Monday to Sunday (step S22). If it is determined in step S22 that the recording reservation method is set to daily reservation, it is determined whether or not a program recorded at the same time on the previous day exists on the hard disk 17 (step S23).

  If it is determined in step S23 that there is a recorded program at the same time on the previous day, there is a previous recorded program, the recorded program is set as the previous content (step S24), and the series determination process ends. If it is determined in step S23 that there is no recorded program at the same time on the previous day, it is determined that there is no previous content (step S26), and the series determination process ends.

  If it is determined in step S22 that the recording reservation method setting is not daily reservation, it is determined whether or not the recording reservation method setting is daily reservation from Monday to Saturday (step S25). If it is determined in step S25 that the recording reservation method setting is a daily reservation from Monday to Saturday, it is determined whether or not the recording day of the recording reservation is Monday (step S26).

  If it is determined in step S26 that the recording date of the recording reservation is not Monday, the processing from step S23 onward is performed as in the case of the daily reservation described above. If it is determined in step S26 that the recording date of the recording reservation is Monday, it is determined whether or not a program recorded at the same time on the previous Saturday exists on the hard disk 17 (step S27).

  In step S27, if it is determined that there is a program at the same time on last Saturday, it is determined that there is the previous content, the program is set as the previous content (step S28), and the series determination process ends. If it is determined in step S27 that there is no program at the same time, it is determined that there is no previous content (step S36), and the series determination process ends.

  If it is determined in step S25 that the recording reservation method setting is not a daily reservation from Monday to Saturday, it is determined whether or not the recording reservation method setting is a daily reservation from Monday to Friday (step S29). . If it is determined in step S29 that the recording reservation method setting is a daily reservation from Monday to Friday, it is determined whether or not the recording date of the recording reservation is Monday (step S30). If it is determined in step S30 that the recording date of the recording reservation is not Monday, the processing from step S23 onward is performed as in the case of the daily reservation.

  If it is determined in step S30 that the recording date of the recording reservation is Monday, it is determined whether or not a program recorded at the same time on last Friday exists on the hard disk 17 (step S31).

  If it is determined in step S31 that there is a program at the same time on Friday last week, it is assumed that there is a previous content, the recorded program is set as the previous content (step S32), and the series determination process ends. If it is determined in step S31 that there is no program at the same time on last Friday, it is determined that there is no previous content (step S36), and the series determination process ends.

  If it is determined in step S29 that the recording reservation method setting is not a daily reservation from Monday to Friday, it is determined whether or not the recording reservation method setting is weekly reservation (step S33). If it is determined in step S33 that the recording reservation method is set to weekly reservation, it is determined whether or not a program recorded at the same time on the same day of the week last week exists on the hard disk 17 (step S34). .

  If it is determined in step S34 that there is a program at the same time on the same day of the week last week, it is assumed that there is the previous content, the recorded program at the same time is set as the previous content (step S35), and the series determination process ends. To do. If it is determined in step S34 that there is no program at the same time on the same day of the week last week, it is determined that there is no previous content (step S36), and the series determination process ends.

  If it is determined in step S33 that the recording reservation method setting is not weekly reservation, the program recorded at the same time of the previous day exists on the hard disk 17 as shown in FIG. It is determined whether the titles of the programs match or are similar (step S37). In the case of one-time recording reservation, since the possibility of series determination is low, the series determination is also performed using the program name (title).

  If it is determined in step S37 that there is a recorded program at the same time on the previous day and the title of the program matches or is similar to the target program, it is assumed that there is the previous content, and the title matches or is similar. Is set as the previous content (step S38), and the series determination process ends.

  If it is determined in step S37 that there is no recorded program at the same time as the previous day, or even if it exists, the title of the program is not the same or similar, whether or not the recording date of the recording reservation is Monday Is determined (step S39).

  If it is determined in step S39 that the recording date of the recording reservation is Monday, a program recorded at the same time on the last Saturday is present on the hard disk 17, and the title of the program matches or is similar to the target program. It is determined whether or not (step S40).

  If it is determined in step S40 that there is a program at the same time and the title of the program matches or is similar to the target program, it is assumed that there is the previous content, and there is a program that matches or is similar to the title. The content is the previous content (step S41), and the series determination process ends.

  If it is determined in step S40 that there is no program at the same time, or the title of the program does not match or resemble the target program even if it exists, a program recorded at the same time last Friday will be displayed. It is determined whether or not the title of the program exists on the hard disk 17 and matches or resembles the target program (step S42).

  In step S42, if it is determined that there is a program at the same time and the title of the program is the same or similar to the target program, it is assumed that there is the previous content, and there is a program with the same or similar title. The content is the previous content (step S43), and the series determination process ends.

  If it is determined in step S39 that the recording date of the scheduled recording is not Monday, or a recorded program at the same time does not exist or even if it exists in step S42, the title of the recorded program is the target recording. If it is determined that the program does not match or resemble the program, a program recorded at the same time on the same day of the week last week exists on the hard disk 17, and the title of the program matches or is similar to the recorded program to be processed. It is determined whether or not (step S44).

  If it is determined in step S44 that there is a recorded program at the same time and the title of the program matches or is similar to the target program, it is assumed that there is the previous content, and the program has the same or similar title. Is the previous content (step S45), and the series determination process ends.

  If it is determined in step S44 that there is no program at the same time, or even if it exists, the title of the program does not match or similar to the target program, there is no previous content (step S46). The series determination process ends.

  As described above, the presence / absence of the previous content is determined. If it is determined that there is the previous content, it is determined that the program is a series program.

  Next, an example of the flagging process in step S7 will be described in more detail. FIG. 7 is a flowchart showing the flow of the flagging process realized by the control of the CPU 11 and the controller 14.

  In order to facilitate understanding of the processing shown in FIG. 7, examples of contents shown in FIGS. 8 to 16 are used. 8 to 16 show the previous contents that have already been recorded on the hard disk 17, and the middle part of each figure shown in FIGS. 8 to 16 shows the current contents being recorded. The lower part shown in each of FIGS. 8 to 16 shows a flag given to the current content. That is, a flagging process is performed at the time of recording the current content.

  These contents consist of opening, main part, ending and commercial types. These portions are moving images having a length of at least several tens of seconds, but for the sake of simplicity, it is assumed that each portion is composed of one image. Further, each of the images in FIGS. 8 to 16 may be interpreted as indicating the feature amount of each part of the content.

  In the flagging process, first, it is determined whether or not the content to be reproduced (meaning a recorded program) has the previous content (meaning a recorded program) (step S51). At this time, if the “previous” flag is assigned to the content to be played back (hereinafter referred to as the current content), it is determined that there is the previous content, and the “previous” flag is assigned. If not, it is determined that there is no previous content.

  If it is determined in step S51 that there is the previous content, it is further determined whether the previous content is compared with the previous content, that is, whether a flag is added (step S52). If it is determined in step S52 that a flag has been added to the previous content, it is determined whether or not a sport extension has been performed by delaying the recording end time when recording the previous content (step S52). S53). At this time, if there is a [with extension] flag in the previous content, it is determined that the extension has been performed, and if there is no [with extension] flag, it is determined that the extension has not been performed.

  If it is determined in step S53 that the sports extension has been performed, it is determined whether or not the sports extension has been performed when recording the current content (step S54). At this time, if there is a [with extension] flag in the current content, it is assumed that the extension has been performed, and if there is no [with extension] flag, the extension has not been performed.

  In step S54, when it is determined that the sport extension has been performed, in the current content, in the previous content, the time when the same feature value as the feature value of the portion having the [same] flag starts to be continued for the first time in the current content Is detected (step S55). The detected time is the start time of the current content opening.

  In step S55, when the opening start time of the current content is detected, the start time difference correction process in step S56 is performed. When the sport extension process is performed, the start time of the recording target program is shifted behind the reserved recording start time, and the entire recorded program is also shifted backward. Moreover, since the time for extending the sport is not constant, there is a problem that an accurate comparison cannot be made when compared with the previous content.

  Avoiding this problem is the processing of steps S55 and S56. In step S56, the difference between the time when the previous flag is no longer a sport and the start time of the opening detected for the current content is obtained, and the obtained difference time is corrected and flagging of [same] or [different] is performed. Done. In addition, a [sports] flag is given before the opening start time.

  These [same], [different], and [sports] flags are given, for example, in units of corresponding parts.

  In step S56, when the [Same] or [Different] flagging process and the [Sports] flagging process are performed, the commercial part of the current content is detected, and the detected commercial part is set to [CM]. Is added (step S57), and the flagging process ends. As described above, video and audio are interrupted at the same time, and the break is detected as a commercial for at least 30 seconds at intervals of 15 seconds, 30 seconds, 45 seconds or 60 seconds, or a combination thereof. ing.

  The example shown in FIG. 8 corresponds to the process flow of steps S51, S52, S53, S54, S55, S56 and S57 in the flowchart of FIG. That is, in the example shown in FIG. 8, there is the previous content, the previous content has a flag, the sport extension is performed when the previous content is recorded, and the recording portion 41 s of the sports program exists. Yes. In addition, this content has also been extended to sports.

  If it is determined in step S54 that the sport extension has been performed, the opening time of the current content, for example, 9:15 pm is detected (step S55). In step S55, when the opening start time is detected, in step S56, the time when the previous content flag is no longer a sport, for example, 9:20 pm is detected, and the difference time of 9:15 pm is 5 minutes. Is detected. The current content is shifted on the time axis for the detected time of 5 minutes. FIG. 8 shows the state after this shift.

  In this way, the difference in the start time is corrected by the shift, and the [same] or [different] flagging process is performed with reference to the feature amount between the corrected contents. In addition, a [Sports] flag is assigned to the recording portion 42 s before 9:15 pm of the start time.

  When the start time of the current content is determined, the opening 41a, CM 41b, the main part 41c, CM 41d, the main part 41e, the ending 41f, and the CM 41g from the start time of the previous content and the opening of the current content after the start time 42a, CM 42b, main part 42c, CM 42d, main part 42e, ending 42f, CM 42g are compared. Since the opening and the ending are the same, the [same] flag is assigned to the opening 41a and the ending 41f. Since the main part is different from the previous part, a [different] flag is assigned to the main parts 42c and 42e. Note that a flag of [CM] is assigned to the CMs 42b, 42d, and 42g.

  Next, the determination results in steps S51 to S53 are the same as those described above, but the processing in the case where it is determined in step S54 that sports extension has not been performed in the current content will be described with reference to FIGS. Will be described with reference to FIG. In step S58, the [same] or [different] flagging process is performed from the time when the previous content is no longer the [sport] flag. If flagging processing is performed in step S58, CM determination and [CM] flagging processing (step S57) are performed, and the flagging processing ends.

  As shown in FIG. 9, there is the previous content, a flag is given to the previous content, and the sport extension is performed when the previous content is recorded. In addition, the content of this time is not extended for sports when recording.

  In this case, in the previous content, the feature amount is compared for the previous content and the current content from the time when the [sports] flag disappears, that is, after 9:20 pm. As a result, the time difference due to the sport extension is corrected. Also, a CM flag [CM] is given. The previous content and the current content are the same as those shown in FIG. 8, and the assigned flags are also the same. The contents shown in FIGS. 10 to 16 are the same as those shown in FIGS.

  Next, although the determination result of step S51, S52 is the same as what was mentioned above, about the process in the case where it determines with sport extension not being performed in the last content in step S53, FIG. 7 and FIG. Will be described with reference to FIG. In step S59, it is determined whether or not the sports extension has been performed when the current content is recorded.

  If it is determined in step S59 that the sport extension has been performed, the opening start time of the current content is detected (step S60). In step S61, [Same] or [Different] flagging processing is performed after the opening start time of the current content. In addition, a [sport] flag is given before the start time.

  When the [same] or [different] flagging process and the [sports] flagging process are performed in step S61, the CM determination and the [CM] flagging process (step S57) are performed. The flagging process ends.

  As shown in FIG. 10, there is a previous content, a flag is given to the previous content, and no sports are extended in the previous content. The content of this time is extended with sports, and there is a recorded portion 42s of the sports program.

  In step S59, when it is determined that the sport extension has been performed, the time when the feature amount that is the same as the feature amount of the portion having the [same] flag in the previous content in the current content first starts to continue in the current content. It is detected (step S60). The detected time is the start time of the current content opening.

  In this case, the feature amounts of the previous content and the current content are compared from the start time of the current content, that is, after 9:20 pm. As a result, the time difference due to the sport extension is corrected.

  Next, the determination results in steps S51, S52, and S53 are the same as those in FIG. 10, but the processing in the case where it is determined in step S59 that no sports extension has been performed in the current content is shown in FIG. This will be described with reference to FIG.

  In step S59, when it is determined that the sports extension is not performed when the current content is recorded, [same] or [different] flagging processing is performed (step S62).

  If [Same] or [Different] flagging processing is performed in step S62, CM determination and [CM] flagging processing (step S57) are performed, and the flagging processing ends.

  As shown in FIG. 11, when there is a previous content, a flag is given to the previous content, and when the previous content and the current content are not extended in sport, the start time of both contents, that is, the afternoon From 9:00 onward, the feature values of the previous content and the current content are compared.

  Next, processing in a case where it is determined in step S52 that there is no previous content flag will be described with reference to FIG. 7 and FIG. If it is determined in step S52 that the flag is not given to the previous content, it is determined whether or not the sport extension has been performed when the previous content is recorded (step S63).

  If it is determined in step S63 that the sports extension has been performed, it is determined whether or not the sports extension has been performed when recording the current content (step S64).

  If it is determined in step S64 that the sport extension has been performed, the CM of the current content is detected and a [CM] flag is assigned (step S65). If the [CM] flagging process is performed in step S65, the [unknown] flag is assigned at other times (step S66), and the flagging process ends.

  As shown in FIG. 12, when there is no flag in the previous content and there is a sport extension in both content, the start time of the opening of the current content cannot be detected. Therefore, the [Unknown] flag is given. Since the time lag due to the sport extension is not known, a flag cannot be given to portions other than the CM.

  Next, in step S52, it is determined that there is no previous content flag. In step S63, it is determined that sports extension has been performed when the previous content is recorded. Processing when there is no extension will be described with reference to FIGS. 7 and 13.

  If it is determined in step S64 that the sport extension is not performed this time, the [CM] flagging process (step S65) and the [Unknown] flagging process (step S66) are sequentially performed. The attaching process ends.

  As shown in FIG. 13, when there is no flag in the previous content and there is a sport extension only in the previous content, the start time of the opening of the current content cannot be detected. Therefore, the [Unknown] flag is given. Since the time lag due to the sport extension is not known, a flag cannot be given to portions other than the CM.

  Next, in step S52, it is determined that there is no previous content flag. In step S63, it is determined that no sports extension has been performed when the previous content is recorded. The processing when there is an extension will be described with reference to FIGS.

  If it is determined in step S67 that the sport extension has been performed, the [CM] flagging process (step S65) and the [Unknown] flagging process (step S66) are sequentially performed, and the flagging process is performed. finish.

  As shown in FIG. 14, when there is no flag in the previous content and there is a sport extension only in the current content, the start time of the opening of the current content cannot be detected. Therefore, the [Unknown] flag is given. Since the time lag due to the sport extension is not known, a flag cannot be given to portions other than the CM.

  Next, in step S52, it is determined that there is no previous content flag. In step S63, it is determined that no sports extension has been performed when the previous content is recorded. Processing in the case of no extension will be described with reference to FIGS.

  If it is determined in step S67 that no sports extension has been performed on the current content, there is no sports extension on both the previous content and the current content. In this case, since there is no time lag due to sport extension, the previous content and the current content feature amount are compared in step S68, and the [same] or [different] flagging process is performed.

  When the flagging process of step S68 is performed, the same flag as the current content is assigned to the previous content (step S69). In this way, a flag can be assigned to the previous content. Thereby, even if it is the first content, if there is a second program, it can be reproduced by the flag.

  When the flagging process in step S69 is performed, a CM is detected for the previous content and the current content, the [CM] flag is assigned (step S70), and the flagging process ends.

  As shown in FIG. 15, even if there is no flag in the previous content, if there is no sport extension in either the previous content or the current content, the recording start time and the opening time of the current content will be Match. Therefore, a [same] or [different] flag can be assigned.

  Next, processing in a case where it is determined in step S51 that there is no previous content will be described with reference to FIGS. In this case, as shown in FIG. 16, since only the current content exists, the [same] or [different] flag cannot be assigned by comparing the feature amounts. Therefore, the [CM] flagging process (step S65) and the [Unknown] flagging process (step S66) are sequentially performed, and the flagging process ends.

  One embodiment of the present invention is characterized by a reproduction process when the recording / reproducing apparatus 1 reproduces a flagged program recorded as a recording content on a recording medium such as the hard disk 17.

  In the reproduction process, a part having the same contents each time such as opening and ending in the series, a commercial part, and a part which is not desired to be watched due to an extension of baseball broadcasting or the like at the time of reserved recording are substantially skipped. “Substantially skip” means that playback is performed faster than normal playback speed or playback is not performed.

  In other words, the reproduction process is controlled based on the above-described flags [CM], [sports], [same], [different]. The reproduction of the portion to which the [same], [CM] and [sports] flags are assigned is skipped. The part to which the [different] flag is assigned is assumed to be the main part of the program and is normally reproduced. Hereinafter, such a playback mode based on the type of flag assigned to the content to be played back will be referred to as an intelligent playback mode.

  The playback mode may be switched from the middle of playback without being set in advance. For example, switching between the normal playback mode and the intelligent playback mode is performed by the user operating the intelligent playback key of the commander 21. Alternatively, the normal playback mode may be switched to the intelligent playback mode by a key operation such as pressing the playback key of the commander 21 twice or pressing the playback key for a long time.

  Since the portion to which the [same] flag is assigned is the opening or ending of the program, the reproduction is skipped. In addition, when playing back a plurality of the same continuous programs (series) continuously, the opening of the first program and the ending of the last program are given the same flag, but exceptionally normal playback You may make it perform. That is, only the opening of the program that is reproduced first and the ending of the program that is reproduced last are reproduced without reproducing all the opening and ending.

  An example of the reproduction process in this embodiment will be described with reference to FIG. FIG. 17 is a flowchart showing the flow of the reproduction process executed under the control of the CPU 11 and the controller 14.

  The reproduction process is started, for example, by operating the commander 21 and selecting a title desired to be reproduced from the titles of content recorded on the hard disk 17 or the like. First, the title to be played back is selected by the user, and the content of the selected title is played back (step S81). When the content of the selected title is reproduced in step S81, it is determined whether or not a flag is given to the reproduced content (step S82).

  If it is determined in step S82 that the flag is not given, the user's operation by the commander 21 or the like is prioritized, and when the operation is performed, processing according to the operation is performed (step S92).

  Then, it is determined whether or not the reproduction is completed due to the completion of the reproduction or the reproduction stop operation (step S93). When it is determined that the reproduction is completed, the reproduction process is terminated. If it is determined in step S93 that the reproduction has not ended, the process returns to step S82, and the processes after step S82 (determination process for determining whether or not a flag is added to the reproduction content) are repeated.

  If it is determined in step S82 that the flag is given, it is determined whether or not the intelligent playback mode is set (step S83).

  In the intelligent playback mode, playback is controlled based on the type of flag assigned to the playback content. The playback mode may be set in advance by the user, or may be switched by a user operation from the middle of playback.

  If it is determined in step S83 that the mode is not the intelligent playback mode, the processing following the processing in accordance with the user operation in step S92 is performed.

  If it is determined in step S83 that the mode is the intelligent playback mode, it is determined whether the flag assigned to the playback content is [different] or [unknown] (step S84). If it is determined in step S84 that the flag is [different] or [unknown], normal reproduction is performed (step S85). If normal reproduction is performed in step S85, the processing following the processing in accordance with the user operation in step S92 is performed.

  If it is determined in step S84 that the flag is not [different] or [unknown], it is determined whether or not the flag given to the playback content is [same] (step S86). If it is determined in step S86 that the flag is [same], fast-forward playback, for example, 15 × playback is performed (step S87). In step S87, when fast-forward playback is performed, processing subsequent to the processing in accordance with the user operation in step S92 is performed.

  If it is determined in step S86 that the flag is not [same], it is determined whether or not the flag given to the playback content is [CM] (step S88). If it is determined in step S88 that the flag is [CM], fast-forward playback, for example, 30 × playback is performed (step S89). In step S89, when fast-forward playback is performed, processing subsequent to the processing in accordance with the user operation in step S92 is performed.

  If it is determined in step S88 that the flag is not [CM], it is determined whether or not the flag given to the playback content is [sports] (step S90). If it is determined in step S90 that the flag is [sports], fast-forward playback, for example, 120x playback is performed (step S91). When fast-forward playback is performed in step S91, processing subsequent to the processing in accordance with the user operation in step S92 is performed.

  If it is determined in step S90 that the flag is not [sports], the process following the process in accordance with the user operation in step S92 is performed.

  Note that the part with the [Same] flag is set to 15x playback, the part with the [CM] flag is set to 30x playback, and the part with the [Sport] flag is set to 120x speed. Although it is set as playback, the playback speed is not limited to this.

  Each of these playback speeds may be set in advance by the user. Further, if it is not necessary to reproduce the portion to which these flags are assigned, the reproduction itself may not be performed instead of changing the reproduction speed. Since the portion with the [Sports] flag is often longer than the portion with the [Same] flag or [CM] flag that is controlled for playback, It is preferable to increase the reproduction speed or not to reproduce. In addition, the content of the reproduced image can be determined to some extent by the reproduction speed during fast forward reproduction. For example, if it is 15 × speed playback, it can be seen that it is opening or ending.

  With reference to FIG. 18, the relationship between the structure of the playback content and the playback state in the intelligent playback mode will be described. FIG. 18A is an example of the configuration of the previous content of the playback content, and FIG. 18B is an example of the configuration of the playback content. FIG. 18C shows a playback state when the playback content is played back.

  The opening and ending portions of the playback content are determined to have the same content as the previous content, and the [same] flag is added, so 15 × playback is performed. The main part 2-1, the main part 2-2, and the next notice part are determined to have different contents from the previous contents, and a [different] flag is added, so normal playback is performed. In addition, the commercial part is given a [CM] flag, so it is played at 30 times speed, and the other program part recorded by extension broadcasting is given a [sport] flag, so it is played at 120 times speed. .

  When the playback content is the first program, etc., and there is no previous content, the [CM] flag is assigned to the commercial part, but the [Unknown] flag is assigned to the other parts. Is done. Therefore, playback is controlled only for the commercial part, and the extended broadcast part, the opening, the main part, the ending, and the next notice part are normally reproduced. However, as described with reference to FIG. 15, by providing a flag to the previous content later, intelligent playback is possible even for the first program.

  As described above, according to one embodiment of the present invention, when a continuous program is reproduced, the reproduction speed of opening and ending of the same content can be automatically increased. Thereby, it is possible to easily and efficiently reproduce the continuous program.

  The present invention is not limited to the above-described embodiment of the present invention, and various modifications and applications are possible without departing from the spirit of the present invention. For example, in the above-described embodiment, the recording / playback apparatus that records / plays back digital broadcasts has been described. However, the present invention can also be applied to VCRs that receive analog broadcasts and record programs on tape media as analog data. it can. For example, in the case of analog television broadcasting, EPG data superimposed on a vertical blanking interval (VBI) can be used as program information.

  In the above-described embodiment, the playback function of the recording / playback apparatus has been described. However, the playback apparatus according to the present invention is not a function of the recording / playback apparatus, but other playback devices, home servers, computer devices, and the like. It can be applied to equipment.

  In the above-described embodiment, a video signal is used for feature amount extraction. However, an audio signal may be used for feature amount extraction. In this case, for example, the feature amount is composed of digital audio data for a predetermined time period in which it can be determined whether or not there is a part having the same content in two programs by comparison with the feature amount extracted from another program. . Further, both the video signal and the audio signal may be used for extracting the feature amount.

  In the above-described embodiment, the flagging process is performed when the reserved recording process is performed. However, the present invention is not limited to this, and the flagging process may be performed during normal manual recording. Further, the flagging process may be performed when a program is reproduced.

  Further, the recorded content recorded on a recording medium such as a hard disk to be reproduced is not limited to the one received from the television broadcast, but may be one read from a DVD or one obtained from a personal computer. . For example, the present invention can be applied to the case of playing video software in which a continuous drama is recorded.

  Further, the content of each process performed by the recording / playback apparatus described above is not limited to being performed in time series in the described order, and for example, each process is performed in parallel or individually. Also good.

It is a block diagram which shows an example of a structure of the video recording / reproducing apparatus by one Embodiment of this invention. It is a flowchart which shows the flow of a reservation video recording process. It is a flowchart which shows the flow of an extension determination process. It is a basic diagram for demonstrating the recording content when a baseball broadcast is extended. It is a partial flowchart which shows the flow of a series determination process. It is a partial flowchart which shows the flow of a series determination process. It is a flowchart which shows the flow of a flagging process. It is a basic diagram which shows the example of a content in order to demonstrate flagging. It is a basic diagram which shows the example of a content in order to demonstrate flagging. It is a basic diagram which shows the example of a content in order to demonstrate flagging. It is a basic diagram which shows the example of a content in order to demonstrate flagging. It is a basic diagram which shows the example of a content in order to demonstrate flagging. It is a basic diagram which shows the example of a content in order to demonstrate flagging. It is a basic diagram which shows the example of a content in order to demonstrate flagging. It is a basic diagram which shows the example of a content in order to demonstrate flagging. It is a basic diagram which shows the example of a content in order to demonstrate flagging. It is a flowchart which shows the flow of a reproduction | regeneration process. It is a basic diagram for demonstrating the reproduction speed in intelligent reproduction mode.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Recording / reproducing apparatus 2 ... Tuner 3 ... Demodulation circuit 6 ... Demultiplexer (DEMUX)
7 ... Video decoder 8 ... Audio decoder 9 ... Feature extraction circuit 10 ... Presentation processing circuit 11 ... CPU
12 ... ROM
13 ... RAM
15 ... Timekeeping circuit 16 ... Remote control interface (I / F)
17. Hard disk (HDD)
18 ... DVD drive 21 ... Commander 41a, 41b, 41c, 41d, 41e, 41f, 41g, 41s ... Features (previous content)
42a, 42b, 42c, 42d, 42e, 42f, 42g, 42s... Feature amount (current contents)

Claims (11)

In a playback apparatus for playing back content from a recording medium on which a plurality of contents corresponding to a plurality of programs related to a continuous program are recorded,
A first flag indicating whether the content content is the same between the content to be reproduced and other content related to the continuous program is recorded in association with the content to be reproduced;
A playback apparatus that plays back substantially skipped portions having the same contents based on the first flag. In claim 1,
Further, a commercial part in the content to be reproduced is detected, and a second flag corresponding to the detected commercial part is recorded in association with the content to be reproduced, and the commercial is referenced with reference to the second flag. A playback device that plays back substantially skipped parts. In claim 1,
A third flag indicating whether or not the recording start time of the content to be played back has been lowered by extension of the previous program is recorded in association with the content to be played back, and the previous flag is referenced with reference to the third flag. A playback device that substantially skips the program part of the program. In claim 1,
The method of substantially skipping based on the first flag is a playback device that performs fast-forward playback. In a reproduction method for reproducing content from a recording medium on which a plurality of contents corresponding to a plurality of programs related to a continuous program are recorded,
A first flag indicating whether the content content is the same between the content to be reproduced and other content related to the continuous program is recorded in association with the content to be reproduced;
A reproduction method for substantially skipping a portion having the same content based on the first flag. In a program for a reproduction method for reproducing content from a recording medium on which a plurality of contents corresponding to a plurality of programs related to a continuous program are recorded,
A first flag indicating whether the content content is the same between the content to be reproduced and other content related to the continuous program is recorded in association with the content to be reproduced;
A reproduction program for causing a computer to execute a reproduction method for substantially skipping a portion having the same content based on the first flag. In a recording / reproducing apparatus for recording a plurality of contents corresponding to a plurality of programs related to a continuous program on a recording medium and reproducing the contents from the recording medium,
A feature amount extraction unit that extracts feature amounts of content to be reproduced and other content related to the continuous program;
A comparison unit that compares the feature amounts extracted by the feature amount extraction unit to detect whether the content is the same;
A flag generation unit that generates a first flag indicating whether or not the content is the same from the comparison result of the comparison unit;
A recording / reproducing apparatus that reproduces by skipping substantially the same content based on the first flag. In claim 7,
Further, a commercial part in the content to be reproduced is detected, and a second flag corresponding to the detected commercial part is recorded in association with the content to be reproduced, and the commercial is referenced with reference to the second flag. A recording / reproducing apparatus that reproduces parts substantially skipped. In claim 7,
A third flag indicating whether or not the recording start time of the content to be played back has been lowered by extension of the previous program is recorded in association with the content to be played back, and the previous flag is referenced with reference to the third flag. A recording / reproducing apparatus for substantially skipping a part of the program. In claim 9,
The program information is acquired, and it is determined whether there is a possibility that the broadcast time of the program reserved for recording is shifted from the acquired program information, and the broadcast time of the program reserved for recording may be shifted. In some cases, a recording and playback device that extends the recording time. In a recording / reproducing method for recording a plurality of contents corresponding to a plurality of programs related to a continuous program on a recording medium and reproducing the contents from the recording medium,
A feature amount extraction unit for extracting feature amounts of content to be recorded or reproduced and other content related to the continuous program;
A comparison unit that compares the feature amounts extracted by the feature amount extraction unit to detect whether the content is the same;
A flag generation unit that generates a first flag indicating whether or not the content is the same from the comparison result of the comparison unit;
A recording / reproducing method for substantially skipping a portion having the same content based on the first flag.