JP2008177832A - Recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording and reproducing device capable of reducing an operation that is complicate to a user during recording and reproduction and efficiently using a recording area of a recording medium by eliminating unused sections in a program in the case of recording and reproducing a regular broadcast program. <P>SOLUTION: Chapter data 1e including a chapter position added by the user when he/she performs editing during the first broadcast video recording of a regular broadcast program and a reproduction skipping section associated with the chapter is managed separately from video recorded data 1a, an unique identifier is further added to respective chapter data 1e and managed, and the identifier is associated with the video recorded data 1a. In the second and subsequent broadcast video recording, the prepared chapter data 1e is applied to stop video recording of the reproduction skipping section. When reproducing the video recorded data 1a with the chapter data 1e associated, a preproduction processing part 7 skips reproduction at a section where a reproduction skip flag shows skipping. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a recording / reproducing apparatus capable of adding chapter information corresponding to video information recorded on a recording medium such as a hard disk or a DVD (Digital Versatile Disk).

  As devices for recording and reproducing video and audio, in addition to VTRs that have been widely used in the past, in recent years, devices that use DVDs or hard disks as recording media have also become popular. Currently, DVDs having a large storage capacity of several gigabytes and hard disks of several tens to several hundred gigabytes are widespread, and it takes several hours to several tens of hours by using a high-efficiency encoding technique such as the MPEG2 system. Video and audio can be recorded easily. The recording capacity of these recording media is expected to increase further in the future.

  In a recording / reproducing apparatus using a recording medium such as a hard disk or a DVD, it is possible to record a desired number of programs continuously on the same medium by providing a reserved recording function like a conventional VTR. . In such a case, chapter information is usually created and associated in order to give a break to each program or a desired location in the program in view of user convenience.

  However, since the chapter information and the recorded program are in a one-to-one relationship, that is, when a plurality of programs are continuously recorded, the chapter information is added to a break in each program or a desired location in the program. However, it is necessary to add chapters sequentially while performing a reproduction operation or a search operation for all recorded programs. The longer the recording time, the more time-consuming and complicated the operation is.

  Therefore, for example, it is also realized that chapter information is created in accordance with the recorded audio mode. For example, if a program such as a movie or a drama is broadcast with monaural sound or double sound, the change of the sound mode is detected at the portion where the commercial broadcast during the program broadcast is switched to stereo sound, and the chapter information is obtained. It can be added.

  In addition, a recording / reproducing apparatus capable of automatically creating chapters is also conceivable. For example, a recording / reproducing apparatus with an automatic chapter creating function as shown in Patent Document 1 is considered. In this case, the chapter information is automatically created with the position where the recording is paused and then the recording is resumed as the chapter boundary.

  Further, Patent Document 2 stores that a user has performed a reproduction operation, generates the reproduction start location as a chapter, and shares chapter information with a program that is continuously reserved and recorded for the same program. A method is disclosed.

  Also, as in the invention disclosed in Patent Document 3, a method of detecting a silent part of speech and generating a chapter in that part is also considered. In continuous reservation recording of the same program, since the program contents are similar, the silent time periods in the program are often the same, and chapters are often generated at the same location.

Further, Patent Document 4 discloses that the same chapter information is added to a continuous program having a similar program structure by separately managing chapter information generated by editing work by a user and data recorded with video. A technique that facilitates and enables sharing of chapter information between different devices is disclosed.
JP 2002-152636 A JP-A-2005-73037 JP 2005-135529 A JP 2005-217875 A

  At present, various types of broadcast programs such as terrestrial broadcasts, satellite broadcasts, and cable television broadcasts on a daily basis. For regular broadcast programs such as continuous dramas and variety programs broadcast every week, commercials included in the programs are also included. Often the same time, the same time, and the same number of times, and the part that the name of the performer or producer that is composed at the start or end of the program is broadcast together with the theme song is also the same time Often broadcast. Using the above-described conventional technology, chapters can be generated at commercial positions or manually created positions, and can be automatically applied to programs that continuously record the position information of those chapters. It becomes.

  Incidentally, some of the sections divided by these chapters are often skipped during reproduction. However, in order to skip these playback sections, it is necessary for the user to press a button installed on the device or a skip button installed on the remote control for controlling the device every time. Will be forced.

  Further, by recording a section that is not necessary for reproduction, a limited recording capacity of the recording medium is wasted. Some devices that automatically generate chapters do not automatically record only a certain section, but a section to be recorded may be deleted due to a chapter section detection error. In addition, since all manually generated chapter sections are recorded, the recording capacity of the recording medium may be wasted.

  The present invention has been made in view of the above, and when recording and reproducing a regular broadcast program, it reduces the troublesome operations for the user when recording and reproducing except for unnecessary sections in the program, and efficiently. An object of the present invention is to provide a recording / reproducing apparatus capable of using a recording area of a recording medium.

  In order to achieve the above object, the recording / reproducing apparatus of the present invention records the content information as recording data based on recording reservation information for extracting and recording content information including video information from a received broadcast. Thereafter, the recording reservation information corresponding to the recording data is registered in the recording list as recording information, and chapter data is obtained based on the registered recording information and the recorded recording data according to a user operation. A recording / reproducing apparatus that generates and associates with the recording data, the recording processing means for recording the content information in the recording means as the recording data based on the recording reservation information, and the recording data associated with the chapter data A playback schedule indicating whether or not to skip a section between chapters in the chapter data during playback. And a means for adding an identifier for identifying the chapter data for which the playback skip flag is set and recording the recording data in the recording means, and the same identifier as the identifier added to the chapter data in the recording information of the recording list A means for associating the recorded data with the chapter data by adding an identifier; and a reproduction processing means for reproducing the recorded data recorded in the recording means, wherein the recording processing means is based on the recording reservation information. When the same identifier as the identifier added to the chapter data already recorded in the recording means is set as the identifier to be set in the recording reservation information when recording new content information, the chapter of this identifier is set. In the section where the playback skip flag set in the data indicates that skipping is performed, recording is stopped. The playback processing means skips playback in a section in which the playback skip flag set in the chapter data indicates that skipping is performed when the recorded data associated with the chapter data is played back. It is a means for executing processing.

  According to the present invention, by setting a section to be reproduced in advance in chapter data that is centrally managed in a chapter list with a unique identifier, recording is performed for the first time in a scheduled broadcast program that is broadcast weekly. In the reproduction of the program that has been recorded and the program that has been recorded thereafter, the section that has been set to skip is automatically skipped at the time of reproduction, so that troublesome operations for the user can be reduced. Also, the recording area of the recording medium can be saved by stopping the recording of the section portion set to be skipped during the second and subsequent recordings.

  The best mode for carrying out the recording / reproducing apparatus of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing functional blocks of a recording / reproducing apparatus according to an embodiment of the present invention. As shown in FIG. 1, the recording / reproducing apparatus according to the present embodiment includes a recording unit 1, a reservation control unit 2, a tuner unit 3, a recording processing unit 4, a recording list control unit 5, and a chapter control unit 6. A reproduction processing unit 7 and a user interface 8.

  The recording unit 1 records recording data 1a in which only recorded video information and audio information or only video information (hereinafter, content information) is recorded for each recorded program, and recording reservation information of the program to be recorded. Reservation list 1b that is recorded separately for each program, recording list 1c that is recorded separately for each program in which all or some items of recording reservation information relating only to programs that have already been recorded are recorded, and will be described later The chapter list 1d in which one or more chapter data is registered with a unique identifier is stored, and the chapter data 1e that is associated with the unique identifier and includes a reproduction skip flag to be described later is added.

  The recording unit 1 is composed of a randomly accessible recording medium such as a hard disk or a DVD-RAM, for example, and each piece of information recorded on the recording medium is stored as a file.

  Of the information stored in the recording unit 1, the information (reservation list 1b, recording list 1c, chapter list 1d, chapter data 1e) excluding the recording data 1a has a small data amount. For example, it may be stored in a storage unit other than the recording unit 1 such as a memory unit (not shown).

  The reservation control unit 2 receives an instruction (reservation input) that is input by a user using a remote controller (not shown) or an operation panel (not shown) installed in the recording / reproducing apparatus according to the present embodiment via the user interface 8. Based on this instruction, recording reservation information is added to, modified or deleted from the reservation list 1b.

  The tuner unit 3 inputs (receives and inputs) signals such as terrestrial broadcasting, satellite broadcasting, and cable television broadcasting received by a receiving unit such as an antenna (not shown) and extracts desired program information.

  The recording processing unit 4 extracts the content information from the program information supplied from the tuner unit 3 based on the recording reservation information registered in the reservation list 1b and records it as recording data 1a, and is associated with the content information. Based on the reproduction skip flag information included in the chapter data read from the chapter data 1e, recording of the designated section is temporarily stopped, and a post-recording recording list 1c is created and recorded.

  The recording list control unit 5 edits and controls the recording list 1c based on the chapter list 1d.

  The chapter controller 6 reads the recording data 1a and edits and controls the recording list 1c, chapter list 1d, and chapter data 1e.

  The reproduction processing unit 7 reproduces and outputs the recorded data 1a associated with the chapter data 1e.

  The user interface 8 receives a user instruction via a remote controller (not shown) or an operation panel (not shown), and outputs the result.

  Next, each piece of information stored in the recording unit 1 will be described with reference to the drawings. First, the recorded data 1a is, for example, high-efficiency encoded video and audio data, or video-only data. The high-efficiency encoding method according to this is a well-known technical method such as the MPEG2 method for video data, the MPEG method, the AAC (Advanced Audio Coding) method, and the AC-3 (Audio Code-3) method for audio data. There is something by. The high-efficiency encoding method according to the present embodiment need not be limited to a specific method, as long as the reproduction processing unit 7 has a reproduction processing function corresponding to the method, that is, a decoding function for decoding. Good.

  Next, FIG. 2 is a diagram illustrating the reservation list 1b. In FIG. 2, each row identifies only one chapter data 1e in a later-described chapter list 1d together with, for example, the recording date, recording start time, recording end time, channel number, and recording mode reservation information of the program to be recorded. The recording reservation information is composed of chapter IDs assigned and managed in this manner. The registration order of each row is the same as the order registered by the user, for example. When there is no corresponding chapter data 1e, the chapter ID column is controlled as a blank column.

  Next, FIG. 3 shows an example in which the recording list 1c is displayed on a display device (not shown) such as a television screen for reproducing and outputting. As shown in FIG. 3, the recording list 1 c is generated by the recording list control unit 5 after the recording processing unit 4 has recorded the program reserved for recording according to the recording reservation information shown in the reservation list 1 b. It is a list. In this case, the recording processing unit 4 replicates, for example, the recording date, recording start time, recording end time, channel number, and chapter ID of the reservation list 1b to each item of the recording list 1c, and also records a predetermined time of the recorded video. The screen data at is recorded as a thumbnail. The predetermined time may be, for example, the first screen for starting recording. In addition, character information such as a program title is recorded for each list item, and the registration operation will be described later.

  Next, FIG. 4 is an example in which the chapter list 1d and the chapter data 1e are displayed on the screen of the display device. In FIG. 4, a chapter list 1d is a list in which each title of all chapter data held in the recording unit 1 is associated with a chapter ID that is an identifier that can be identified for each chapter data. The chapter list 1d in FIG. 4 shows an example in which chapter IDs are assigned in the order registered by the user.

  The chapter data 1e in FIG. 4 is time information for specifying a chapter, that is, chapter data itself. The detailed components are, for example, a chapter title, a program start time, an end time, a time for specifying chapter data, and a playback skip flag for setting whether to skip playback of each chapter section. The chapter control unit 6 manages and controls the chapter data 1e in association with the chapter ID of the chapter list 1d.

  The title of the chapter list 1d is the title of the chapter data 1e duplicated by the chapter control unit 6.

  Next, the procedure of the recording / playback operation of the recording / playback apparatus according to the configuration example of FIG. 1 will be described using the control information examples shown in FIGS.

  FIG. 5 is a diagram showing the recording / playback operation sequence of the recording / playback apparatus shown in FIG. 1 according to two operation modes (described as (1) and (2) in FIG. 5). In FIG. 5, steps represented by squares represent operations performed by the user, and steps represented by squares without corners represent processing of the recording / reproducing apparatus. First, a basic recording / reproducing operation including a procedure for creating chapter data 1e in each sequence shown in FIG. 5 will be described. In FIG. 5, this basic recording / playback operation sequence starts from step S1, and is in the order of S2, S3, S4, S5, S6, and S7, as shown in (1).

  First, the user designates a recording reservation (reservation input) to the reservation control unit 2 via the user interface 8 while operating a remote controller (not shown) or an operation panel (not shown) (step S1). Based on the input reservation input information, the recording reservation information is recorded in the reservation list 1b of the recording unit 1 as illustrated in FIG. 2 (step S2). At this time, nothing is specified in the chapter ID column in the reservation list 1b and it is blank.

  Next, in the recording reservation information registered in the reservation list 1b, if the current time monitored by the recording processing unit 4 matches the recording date and time, the recording processing unit 4 determines that the recording reservation matches the reservation list. Based on the information, the tuner 3 controls the broadcast signal received to extract the program information, records the content information from the extracted program information in the recording data 1a, and then records the recording reservation information as the recording information. It is registered in 1c (step S3).

  Thereafter, the user of the recording / reproducing apparatus shown in FIG. 1 performs an operation of designating a chapter and a reproduction skip section for the recorded video data 1a (step S4).

  Here, a specific example of the chapter designation and reproduction skip section designation operations will be described with reference to FIG. FIG. 6 is a specific example of a chapter designation screen displayed on the display device under the control of the chapter controller 6 in order for the user to designate a desired chapter for desired content information in the recorded data 1a. is there.

  In FIG. 6, a chapter designation GUI (Graphical User Interface) 61 is used to specify a chapter and a mark at a designated portion of the chapter with the horizontal direction as a reproduction time in order to make it easy to understand on the screen when the chapter is designated in the content information of the recorded data 1 a. Time information is displayed.

  The seek bar 62 extends horizontally in the time axis direction of the chapter designation GUI 61, and the cursor 62a points to a chapter designation location on the chapter designation GUI 61 while moving on the seek bar 62 by an operation of a user's remote controller or the like. The window 63 displays an image of content information at the time pointed by the cursor 62a. The times indicated by the marks 61a, 61b, 61c, 61d, 61e, 61f, and 61g in FIG. 6 are examples of times when chapters are designated in the content information.

  In FIG. 6, sections 61d to 61e are sections selected by the user from the menu items shown on the GUI by operating the operation panel built in the remote controller or the recording / playback apparatus, and skipped during playback (playback skipping). (Interval). The reproduction skip section designated here is recorded together with the chapter number in chapter data 1e as a reproduction skip flag. In the present embodiment, one playback skip section is specified in the recorded data 1a. However, playback skip sections may be specified at arbitrary multiple locations.

  These instructions are time-designated corresponding to the example of the chapter data 1e shown in FIG. As for the video displayed in the window 63, when the video information of the recorded data 1a is data encoded by the MPEG2 system, the reproduction processing unit 7 indicates the cursor 62a from the MPEG2 stream of the video information. An I frame image in time (a frame to be subjected to intraframe prediction encoding) is displayed in a size that fits within the window 63 and displayed. Since the technique for extracting only the I frame image from the MPEG2 stream and displaying it on the window of the screen is a well-known technique in the field of image processing, particularly image editing, the detailed description of the technique will be omitted.

  After the specification of the chapter and the playback skip section is completed as described above, the user inputs the chapter title by operating the remote controller or the operation panel as necessary. In this embodiment, it is assumed that “music program” is designated.

  When all the operations related to the specification of the chapter and the playback skip section by the user are completed, the chapter control unit 6 determines the chapter and the playback skip section specified by the user based on the instruction received via the user interface 8. It is recorded in the chapter data 1e of the recording unit 1, a new chapter ID is assigned to the chapter list 1d, and the chapter and the reproduction skip section are associated and registered (step S5).

  Next, the recording list control unit 5 adds the chapter ID of the chapter to the corresponding recording information of the recording list 1c registered in the process of step S3 (step S6). In the case of the present embodiment, the chapter ID “4” of the chapter list 1d shown in FIG. 4 is registered in the chapter related to the title “music program” of the recording list 1c shown in FIG.

  When the reproduction processing unit 7 reproduces the content information from the recorded data 1a, the data reflecting the chapter data 1e is reproduced (step S7).

  Next, when the user has already created chapter data 1e and this chapter data 1e is associated with the chapter list 1d and recorded in the recording unit 1, the chapter data already created at the time of recording reservation by the user is recorded. The operation when associating 1e will be described. In FIG. 5, this recording / playback operation sequence starts from step S8 as shown in (2) and is in the order of S9, S6 and S7.

  First, the user operates the remote controller or the operation panel to display the reservation list 1b on the display device under the control of the chapter controller 6, and inputs a desired chapter ID in the chapter ID column of desired recording reservation information. An operation is performed (step S8).

  The chapter ID in this case is the same as the chapter ID of the chapter list 1d as described above. For example, in the reservation list 1b shown in FIG. 2, when chapter ID = 2 is input to the recording reservation information of “Every Monday, 21:00 to 22:00, 8 channels, LP mode”, the chapter list 1d of FIG. The chapter of the chapter data 1e associated with the chapter ID = 2 of the title “Monday 9 o'clock drama” and the playback skip section are associated with the recording reservation information.

  Next, step S9 to be subsequently processed will be described. As in step S3 described above, the recording processing unit 4 starts recording at the time set in the reservation list 1b. Here, the recording processing unit 4 records with reference to the chapter data 1e associated in step S8. Specifically, the recording processing unit 4 performs recording while referring to the reproduction skip flag included in the chapter data 1e, and temporarily records the recording when the time from the start of recording reaches the time of the chapter to which the reproduction skip flag is added. When recording stops, recording resumes when the time from the start of recording reaches the time of the chapter to which the next playback skip flag is not added.

  As shown in FIGS. 7A and 7B, at the end of the scheduled recording, the recorded total time of the recorded data is the recorded time in the reserved list 1b by the time of the chapter section to which the playback skip flag is added. Shorter. FIG. 7A shows the time relationship between the recording data edited by the user and the chapter data 1e. The sections 71d to 71e are sections in which a playback skip flag is set, As shown in FIG. 7B, the recorded data is recorded in a state where no recording is performed in the sections 72d to 72e corresponding to the marks 71d to 71e in FIG.

  Step S6 to be processed subsequently is also as described above. In the case of the present embodiment, the chapter ID “2” of the chapter list 1d shown in FIG. 4 is registered in the chapter related to “Monday 9 o'clock drama 5 episode” of the recording list 1c shown in FIG.

  After that, when the playback processing unit 7 plays back the content information from the recorded data 1a as in step S7 described above, the chapter section (playback skip section) in which the chapter data 1e is reflected and the playback skip flag is added. ) Will be played back. At this time, the total recording time recorded in the chapter data 1e and the recording data 1a does not necessarily match, but this is because the recording data 1a is shortened because the reproduction skip flag is applied.

  According to the above, since the created chapter data 1e is centrally managed by the chapter list 1d with a unique identifier, the chapter data 1e can be managed completely independently from the recorded data 1a.

  According to this, for example, in a regular broadcast program that is broadcast every week, the part of the same content every time, such as the broadcast time, the time and number of commercials entering, the theme song that flows at the beginning and end of the program is almost the same in each broadcast Therefore, once the chapter data 1e is created at the time of the first broadcast recording, the created chapter data 1e can be applied to the subsequent broadcast recording. Therefore, it is possible to save time and effort to create chapter data 1e by playing or searching from the first part of the recorded program one by one, and time for editing work can be greatly shortened.

  Specifically, if the chapter data 1e related to the first broadcast recording is created using the chapter designation screen illustrated in FIG. 6, the chapter data is the same as the first time for the content after the next recording. Even if 1e is not created, the chapter data 1e created at the first time is reflected and displayed on the chapter designation screen.

  In the second and subsequent scheduled recordings, when the chapter data 1e at the time of the initial recording is created, by setting a section (playback skip section) where playback or recording is to be skipped, it is not necessary to record only the playback skip section. As a result, the recording area in the limited recording medium can be saved. Furthermore, the user does not need to use the remote controller to skip the section during playback of the program recorded for the first time and the program recorded for the second time or later, reducing the user's troublesome operations. be able to.

It is a functional block diagram of the recording / reproducing apparatus which concerns on embodiment of this invention. It is an example of the reservation list 1b which concerns on embodiment of this invention. This is an example in which a recording list 1c according to an embodiment of the present invention is displayed on a display device. This is an example in which a chapter list 1d and chapter data 1e according to an embodiment of the present invention are displayed on a display device. It is the figure which showed the video recording / reproducing operation sequence of the recording / reproducing apparatus shown in FIG. 1 according to two operation modes. It is the example which displayed the chapter designation | designated screen which concerns on embodiment of this invention on a display apparatus. It is an example showing the recording data after the reproduction skip flag application according to the embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording part 1a Recording data 1b Reservation list 1c Recording list 1d Chapter list 1e Chapter data 2 Reservation control part 3 Tuner part 4 Recording processing part 5 Recording list control part 6 Chapter control part 7 Playback processing part 8 User interface

Claims (1)

Based on the recording reservation information for extracting the content information including the video information from the received broadcast and recording the reservation, the content information is recorded as the recording data, and then the recording reservation information corresponding to the recording data is recorded as the recording information. A recording / playback apparatus that generates chapter data based on the recorded recording information and the recorded recording data and associates with the recording data in accordance with a user operation. ,
Recording processing means for recording the content information in the recording means as the recording data based on the recording reservation information;
A playback skip flag indicating whether or not to skip a section between chapters in the chapter data during playback of recorded data associated with the chapter data is set, and the chapter data in which the playback skip flag is set Means for adding an identifier for identifying the information and recording it in the recording means;
Means for associating the recorded data with the chapter data by adding the same identifier as the identifier added to the chapter data to the recording information of the recording list;
Playback processing means for playing back the recorded data recorded in the recording means,
The recording processing means includes an identifier added to the chapter data already recorded in the recording means as an identifier to be set in the recording reservation information when recording new content information based on the recording reservation information. When the same identifier is set, the section indicating that the playback skip flag set in the chapter data of this identifier performs skipping is a means for executing processing for stopping recording,
The playback processing means executes processing for skipping playback in a section in which the playback skip flag set in the chapter data indicates that skipping is performed when the recorded data associated with the chapter data is played back. The recording / reproducing apparatus characterized by the above-mentioned.

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