JP2009152974A - Video reproduction device, and video reproduction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video reproduction device capable of viewing a recorded program in a short period of time. <P>SOLUTION: The video reproduction device is characterized by including: a reception part for receiving a television broadcast; a recording control part for recording the received television broadcast in a recording medium; a program selection part for selecting a main reproduction program and a sub reproduction program to be simultaneously reproduced from among a plurality of programs recorded in the recording medium; a reproduction part for reproducing the selected main reproduction program and sub reproduction program from the recording medium; and a video synthesizing part for synthesizing a video signal of the main reproduction program and a video signal of the sub reproduction program so that the main reproduction program is displayed on a parent screen and the sub reproduction program is displayed on a child screen provided in a part of the parent screen. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a recording / reproducing apparatus and a recording / reproducing method, and more particularly to a recording / reproducing apparatus and a recording / reproducing method for recording and reproducing various television broadcast programs.

  Recently, the number of TV broadcast programs that can be viewed has increased rapidly. In addition to conventional broadcast programs using analog terrestrial broadcasts and analog satellite methods, broadcast programs using digital terrestrial broadcasts, digital BS broadcasts, or digital CS broadcasts can be viewed. The user can select and watch a program that suits his / her preference from many programs provided from these broadcast media.

  In addition, information on the titles of these broadcast programs and the broadcast date and time, so-called electronic program guides (EPG), are broadcast at the same time, and the user displays the electronic program guide on the TV screen to suit his taste. You can also select a program.

  On the other hand, the types of recording / playback apparatuses for recording and playing back TV broadcast programs have also been diversified. In addition to conventional VTR (Video Tape Recorder) and DVD (Digital Versatile Disc) recording devices, hard disk recording devices equipped with HDDs (Hard Disk Drives) have become widespread. In addition, the recording capacity (or recording time) of the recording medium is increasing, and the HDD capacity in the hard disk recording / playback apparatus is increasing. On the other hand, recording on an optical disc capable of high-density recording such as HD DVD and BD is possible. High-density recording / playback devices are beginning to spread.

  As the recording capacity increases, the number of programs that can be recorded on the recording medium also increases. Therefore, the user can record many programs without worrying about the remaining capacity of the recording medium as before. As a result, a viewing mode may be considered in which a program is not selected at the stage of recording a broadcast program, but is selected continuously for a long time, for example, for recording all day long, and at the stage of playback. That is, it is a viewing mode in which recording is performed continuously at random at the time of recording, and a program is selected at the time of reproduction.

In such a viewing mode, it is convenient if there is a selection support method capable of selecting a desired program from a large number of recorded programs in a short time. As one of such selection support methods, for example, Patent Document 1 discloses a technique for obtaining audience rating information from a WEB server via the Internet or the like and providing a recorded program title and the audience rating to the user. Disclosure.
JP 2003-189207 A

  By the way, an electronic program guide is provided in today's television broadcasting, and by using this electronic program guide, it is possible to perform reliable reservation recording with an extremely simple operation. In this case, unlike the random recording described above, the program selected according to the user's preference is reserved at least at the time when the program recording is reserved, and the user should want to watch after recording.

  However, as the recording capacity of the recording / playback device increases, the recorded programs accumulate more and more on the device. On the other hand, even if you want to watch a recorded program, the number of users who cannot take it easily due to busy time is increasing. Yes.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a recording / reproducing apparatus and a recording / reproducing method capable of viewing a recorded program in a short time.

  In order to solve the above-described problems, a recording / playback apparatus according to the present invention includes a receiving unit that receives a television broadcast and a recording control unit that records the received program of the television broadcasting on a recording medium. A program selection unit that selects a main reproduction program and a sub reproduction program that are simultaneously reproduced from a plurality of programs recorded on the recording medium, and the selected main reproduction program and the sub reproduction program are recorded. A playback unit for playback from a medium; and a video signal of the main playback program and the sub-playback so that the main playback program is displayed on a main screen and the sub-playback program is displayed on a sub-screen provided in a part of the parent screen. And a video synthesis unit for synthesizing the video signal of the reproduced program.

  According to the recording / reproducing method of the present invention, as described in claim 6, (a) receiving a television broadcast, (b) recording the received television broadcast program on a recording medium, and (c) the A main reproduction program and a sub reproduction program to be simultaneously reproduced are selected from a plurality of programs recorded on the recording medium, and (d) the selected main reproduction program and the sub reproduction program are reproduced from the recording medium. And (e) displaying the main reproduction program on a main screen and displaying the sub reproduction program on a sub-screen provided in a part of the parent screen, and the video signal of the main reproduction program and the sub reproduction program. And a step of synthesizing the video signal.

  According to the recording / reproducing apparatus and the recording / reproducing method of the present invention, a recorded program can be viewed in a short time.

  Embodiments of a recording / playback apparatus and a recording / playback method according to the present invention will be described with reference to the accompanying drawings.

(1) Basic Configuration and Basic Operation FIG. 1 is a block diagram illustrating a configuration example of a recording / playback apparatus 1 according to the present embodiment. The recording / playback apparatus 1 includes a receiving unit 10, an encoding unit 20, a decoding unit 30, a disc format conversion processing unit 40, a temporary storage unit 41, DA conversion units 43 and 44, a user interface unit 45, a control unit 50, and an optical disc drive unit 60. And an HDD (Hard Disk Drive) unit 70 and the like.

  The recording / playback apparatus 1 receives a television broadcast program by the receiving unit 10 and records the received program on the optical disc 100 or the HDD unit 70. The optical disc 100 is a rewritable optical disc, such as a DVD-RAM, a DVD-RW, an HD DVD-RAM, or an HD DVD-RW. When a program recorded on these recording media is reproduced, the audio signal and the video signal are separated, and the audio signal is supplied to the speaker 200 and the video signal is supplied to the TV display 201. In FIG. 1, an example in which the speaker 200 and the TV display 201 are external configurations of the recording / playback device 1 is shown, but these may be internal configurations of the recording / playback device 1. The recording / playback apparatus 1 may be configured to be connectable to an external server 203 via a network 202 such as the Internet.

  The receiving unit 10 includes an analog broadcast tuner unit 11 and a digital broadcast tuner unit 12. The analog broadcast tuner unit 11 receives terrestrial analog broadcasts and satellite analog broadcasts, and the digital broadcast tuner unit 12 receives terrestrial digital methods and satellite digital broadcasts.

  The encoding unit 20 includes AD conversion units 21 and 22, an audio encoding unit 23, a video encoding unit 24, and a formatter unit 25.

  An audio signal and a video signal are separated from the analog tuner unit 11 and input to the encoder unit 20, digitized by the AD conversion units 21 and 22, and then input to the audio encoding unit 23 and the video encoding unit 24, respectively.

  The audio encoding unit 23 performs compression processing on the audio signal by the AC3 method, the MPEG audio method, or the like, and then outputs it to the formatter unit 25. The video encoding unit 24 performs compression processing on the video signal by the MPEG method, and then outputs the video signal to the formatter unit 25.

  In the formatter unit 25, the compressed audio signal and video signal are multiplexed, converted into a program stream, and output to the disc format conversion unit 40.

  On the other hand, the digital broadcast tuner unit 12 outputs a TS (transport stream) in which an audio signal and a video signal are multiplexed, and outputs to the disc format conversion unit 40 via the formatter unit 25.

  Further, the formatter unit 25 generates a management information file and outputs it to the disc format conversion unit 40 together with the program stream and the transport stream.

  The disc format conversion unit 40 divides the input data, adds an error correction code, and outputs it to the optical disc drive unit 60 in units of ECC blocks.

  The optical disk drive unit 60 performs predetermined code modulation on the input data, and then records (records) on the recording surface of the optical disk with a laser beam.

  The temporary storage unit 41 is a memory for temporarily saving data when the optical disk drive unit 60 is in a busy state such as during a seek or a track jump, and the busy state is released. The saved data is sent to the optical disc drive unit 60.

  Data similar to the data output to the optical disc drive unit 60 is also output to the HDD unit 70. The same data may be recorded in parallel on the HDD unit 70 and the optical disc 100, or may be selectively recorded on either one.

  When data (program) recorded on the HDD unit 70 or the optical disc 100 is reproduced, the process is almost the reverse of the recording process. Recorded data read from the playback unit (not shown) of the HDD unit 70 or the playback unit (not shown) of the optical disc drive unit 60 is subjected to error correction processing by the disc format conversion unit 40 and input to the decoding unit 30. Is done. The decoding unit 30 separates the multiplexed data into audio data and video data, and performs decompression processing on each compressed data.

  Audio data and video data output from the decoding unit 30 are converted into analog signals by the DA conversion units 43 and 44, and output to the speaker 200 and the TV display 201, respectively.

(2) Simultaneous Playback Processing The recording / playback apparatus 1 according to the present embodiment does not necessarily require simultaneous recording when recording a program, but assumes a general recording form that is performed at different times. A program desired to be recorded by the user is selected by using a function such as scheduled recording or each time viewing is performed, and the program is sequentially recorded on the optical disc 100 or the HDD unit 70. Of course, when the recording / reproducing apparatus 1 has a simultaneous recording function, simultaneous recording may be performed, and this is not excluded.

  On the other hand, the recording capacity of today's optical disc 100 and HDD unit 70 has increased dramatically compared with the conventional one, and these recording media have been recorded several times during repeated recordings and simultaneous recordings at different times. A large amount of recorded programs will accumulate. When the user (viewer) is busy, a large amount of unviewed recorded programs that have never been reproduced remain on the recording medium.

  Therefore, in the recording / playback apparatus 1 according to the present embodiment, two programs, a main playback program and a sub-playback program, are selected from a plurality of programs recorded on a recording medium such as the optical disc 100 and the HDD unit 70. The main reproduction program is simultaneously displayed on the main screen of the TV display 201, and the sub reproduction program is simultaneously displayed on the child screen of the TV display 201. With this simultaneous reproduction function, it is possible to view an unviewed recorded program accumulated in the recording medium in a short time.

  FIG. 2 is a diagram showing a display example at the time of simultaneous reproduction in the present embodiment. The parent screen is a screen showing almost the entire display area of the TV display 201, and the child screen is a small display screen provided in a part of the parent screen (for example, the lower right area as illustrated in FIG. 2). .

  FIG. 3 is a block diagram illustrating a detailed configuration example of the decoding unit 30 (first embodiment) for simultaneously reproducing the main screen and the child screen. The distribution of the main screen display and the sub screen display is performed based on the main reproduction program / sub reproduction program instruction signal output from the program selection unit 52 of the control unit 50.

  A main playback program / sub-playback program instruction signal is also output from the program selection unit 52 of the control unit 50 to the optical disc 100 and the HDD unit 70. In the optical disc 100 and the HDD unit 70, a plurality of recordings recorded on a recording medium are performed. Based on this instruction signal, the main reproduction program and the sub reproduction program are selected from these programs and reproduced simultaneously.

  The simultaneously reproduced main reproduction program and sub reproduction program are input from the disk format conversion processing unit 40 to the buffer unit 31 of the decoding unit 30. The output of the buffer unit 31 is distributed to the AV decoder (1) and the AV decoder (2) based on the main reproduction program / sub reproduction program instruction signal.

  The AV decoder (1) decodes the main reproduction program to be displayed on the main screen, and generates an audio signal and a video signal. On the other hand, the AV decoder (2) decodes the sub-reproduced program and generates a video signal for display on the child screen. Since audio cannot be heard at the same time, only the audio of the main playback program is decoded. The AV decoder (2) also performs processing for reducing the sub-reproduced program to the size of the child screen.

  The video synthesizing unit 36 synthesizes the video of the main reproduction program and the video of the reduced sub reproduction program, and generates the video of the parent / child screen illustrated in FIG.

  Although the decoding unit 30 (first form) includes two decoders, an AV decoder (1) 32 and an AV decoder (2) 34, the hardware scale increases, but the main reproduction program and the sub reproduction program Are separated and processed in parallel, the control is simple and the development cost can be kept low.

  On the other hand, FIG. 4 is a block diagram illustrating a detailed configuration example of the decoding unit 30a (second embodiment). In the second mode, the main reproduction program and the sub reproduction program are time-divisionally processed simultaneously by one AV decoder (1) 32a. Compared to the first embodiment, although the hardware scale can be reduced, the development cost may increase.

  With the above configuration, the main reproduction program and the sub reproduction program can be displayed on the main screen and the sub screen, respectively, and simultaneously reproduced.

  By the way, in the case of simultaneous playback, a method of ignoring the contents of the recorded program and distributing the two programs to the parent screen and the child screen can be considered, but this method is not very appropriate.

  In general, a continuous viewing mode is often used for programs of genres such as dramas, movies, and documentaries. These programs have a story flow, and often the contents of the programs cannot be fully enjoyed unless they are watched to some extent and continuously. For continuous and intensive viewing, it is considered that reproduction on a large screen, that is, a parent screen is suitable.

  On the other hand, a program of a genre such as sports, news, variety, etc. does not necessarily have a consistent story flow, and a viewing form that is intermittent or less concentrated is often sufficient. For example, in many sports programs such as baseball and soccer, many viewers watch intensively only before and after a scoring scene, and so-called “watching” is sufficient for other scenes. Also, in the news program, it is enough to watch only the news that you are interested in, in the variety program it is enough to watch only when your favorite talent appears, and for some viewers that "watching" is enough for other scenes Many. That is, it is considered that programs of genres such as sports, news, variety, and the like can satisfy viewers' needs even when played on a small screen, that is, a sub-screen.

  The genre information of a program such as a drama, a movie, or a sport or news is included in the EPG information broadcast simultaneously with the program. In the case of analog broadcasting, the broadcast is multiplexed during the blanking period of the TV signal. In the case of digital broadcasting, it is multiplexed and included in the transport stream.

  In the recording / playback apparatus 1 according to the present embodiment, as shown in FIG. 1, this EPG information is acquired for each broadcast program and input to the recording control unit 51 of the control unit 50. The recording control unit 51 extracts the genre information described above from the EPG information, and determines whether or not the program to be recorded is a candidate for a sub reproduction program (sub reproduction candidate program) from the genre information. For example, when the genre information is sports, news, variety, etc., identification information is generated with the program as a sub-reproduction candidate program.

  This identification information is sent to the formatter unit 25 and incorporated into a part of the management information file to be recorded on the recording medium.

  As a part of the management information file, for example, MNFIT (manufacturer information table) can be used. In general, the management information file is finely defined by the optical disc standard, but the MNFIT is an area in which unique information is allowed to be included for each manufacturer.

  FIG. 5 is a diagram showing an example of a file structure in the MNFIT newly defined in the present embodiment. The MNFIT is composed of an MNFI_ID indicating a manufacturing company code, an MNFI_REC_TM indicating a file creation time, and an MNFI_DT of an information group of sub reproduction candidate programs. The MNFI_DT includes a code SIML_PM_PG code indicating that the sub-playback candidate program will continue next, a DATA_SIZE_PG number indicating the data size of this area and the number of sub-playback candidate programs, and specific sub-playback candidate programs (# 1 to ##). N) SML_PM_information #n (n = 1 to N) indicating information of N).

  Each SML_PM_ information describes a specific index (title) of the sub reproduction candidate program. In addition, a reproduction flag is attached to each SML_PM_information. The reproduction flag is a flag indicating whether the sub reproduction candidate program recorded on the recording medium is unreproduced or reproduced. For example, the playback flag is set to “0” if it has never been played after being recorded, and is set to “1” if it has been played even once.

  FIG. 6 is a flowchart showing an example of processing when a television broadcast is received and recorded on a recording medium.

  First, in step ST1, EPG information of a broadcast program to be recorded is acquired. As described above, the EPG information is obtained by extracting information multiplexed in the program broadcast. In addition, you may acquire via the networks 202, such as the internet, from the server 203 which a broadcast provider etc. manage.

  Next, genre information of the broadcast program to be recorded is extracted from the acquired EPG information (step ST2). Then, it is determined whether or not the extracted genre information is a genre that should be a sub-playback candidate program (step ST3). For example, when the genre of the program is a genre such as sports, news, variety, etc., it is determined that the program is to be a sub-reproduction candidate program because there is not much trouble even if it is reproduced on the sub-screen. Conversely, if the genre of the program is a genre such as drama, movie, documentary, etc., it is determined that the program is to be reproduced on the parent screen and is not to be a subsidiary reproduction candidate program. For example, a determination criterion table that associates all genres with sub-reproduction candidate programs and other programs (that is, main reproduction candidate programs) is held in advance, and recording is performed by referring to the genres in the determination criterion table as keys. It is only necessary to determine whether or not to make the program to be a sub-reproduction candidate program. In addition, you may comprise this determination criteria table so that a user can edit.

  If it is determined to be a sub reproduction candidate program, it is registered as a sub reproduction candidate program (step ST4). Specifically, the index (title) of the sub-playback candidate program is registered as SML_PM_information in MNFIT. When recording in addition to a recording medium that has already been recorded, the management information file of the recording medium is read, and the index of the sub-playback candidate program to be newly recorded is added to the SML_PM_ information in the MNFIT. To do. The SML_PM_information includes a playback flag in addition to the index (title) of the sub-playback candidate program. However, since the sub-playback candidate program has not been played back at the recording stage, the playback flag is not played back (" 0 ”) and register.

  Thereafter, the MNFIT in which the index of the sub-playback candidate program is registered (or additionally registered) is incorporated into a part of the management information file, and the management information file is recorded on the recording medium and the sub-playback candidate program is recorded (step ST5). ).

  FIG. 7 is a flowchart showing an example of processing for reproducing a recorded recording medium in the present embodiment.

  First, in the same way as normal playback, a main playback program to be displayed on the parent screen is selected by a user operation (step ST11).

  Prior to playback of the selected main playback program, a management information file is read from the optical disc 100. The management information file is also read in the same manner when reproducing on the HDD unit 70.

  Then, SML_PM_ information (sub-playback candidate program index (title) and playback flag) in the MNFIT of the management information file is read (step ST12).

  Next, the presence / absence of an unreproduced subsidiary reproduction candidate program is determined from the SML_PM_ information (step ST13). If no sub-playback candidate programs are registered or if all the registered sub-playback candidate programs have been played, the process proceeds to step ST18, where the main playback program is played back and displayed on the parent screen. In this case, the sub screen is not displayed.

  On the other hand, when there is an unreproduced sub reproduction candidate program, the index information (PG_INDEX) of the program is read, and the corresponding sub reproduction candidate program is specified as the sub reproduction program. Then, the decoding unit 30 is set so that the sub-reproduced program is reproduced on the child screen (step ST14). If there are a plurality of unreproduced subsidiary reproduction candidate programs, for example, the program with the earliest recording time is identified as the subsidiary reproduction program.

  The processing from step ST12 to step ST14 is mainly performed by the control unit 50. In particular, the selection and specification of the sub-playback program are processing performed by the program selection unit 51 of the control unit 50.

  Thereafter, the main reproduction program and the sub reproduction program are reproduced at the same time, and are simultaneously displayed on the parent screen and the child screen (step ST15).

  Step ST16 is a process for determining the end of the reproduction of the sub-reproduction program. When the reproduction of the sub-reproduction program is completed, the reproduction flag of the reproduced sub-reproduction program is reproduced from unreproduced ("0") to "1". And the changed MNFIT is recorded on the recording medium.

  The simultaneous reproduction process shown in FIG. 7 is a process in which the program selection unit 51 of the control unit 50 automatically selects and specifies the sub reproduction program.

  On the other hand, it is good also as a process (manual selection) which entrusts a user with selection and specification of a sub reproduction program. FIG. 8 is a flowchart showing an example of the simultaneous playback process in the form of manually selecting the sub-playback program. The difference from FIG. 7 is the processing of steps ST100, 101, and 102. The other processes are the same as those in FIG. 7, and the same step numbers as those in FIG.

  In step ST100, SML_PM_information (index (title) and reproduction flag of the sub reproduction candidate program) in the MNFIT read from the recording medium is displayed.

  FIG. 9 is a diagram showing an example in which the title of each program and played / not played are displayed as a sub-playback candidate program list. This list display may be displayed on the TV display 201 or may be displayed on the display unit of the user interface unit 45 in the recording / playback apparatus 1.

  While viewing this list display, the user selects and specifies the sub-playback program to be played back on the sub-screen. The sub-playback program is selected using appropriate selection means (for example, a selection button and a determination button of the remote controller) that the user interface unit 45 has.

  In step 101, it is determined whether or not a sub reproduction program has been selected by the user. If any sub-playback program is selected, the decoding unit 30 is set so that the program is played back on the child screen (step ST102). If no sub-playback program is selected, the process proceeds to step ST18. Subsequent processing is the same as that in FIG.

  As described above, according to the recording / playback apparatus 1 and the recording / playback method according to the present embodiment, a large number of recorded programs can be played back and displayed on the main screen and the subscreen at the same time. Can watch the program in a short time. In addition, programs to be displayed on the parent screen and the child screen are classified based on the genre information of the program, a program suitable for displaying the parent screen is displayed on the parent screen, and a program suitable for displaying the child screen is displayed on the child screen. Selected. Therefore, it is possible to realize an efficient viewing mode with less stress on the user even when viewing at the same time.

  Note that the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, the constituent elements over different embodiments may be appropriately combined.

The block diagram which shows the structural example of the video recording / reproducing apparatus concerning this embodiment. The figure which shows the example of a display of simultaneous reproduction. The block diagram which shows an example of a structure (1st form) of a decoding part. The block diagram which shows an example of a structure (2nd form) of a decoding part. The figure which shows an example of the management information file structure of a sub reproduction candidate program. 6 is a flowchart illustrating an example of a recording process according to the present embodiment. The flowchart which shows an example of the simultaneous reproduction | regeneration processing (sub reproduction program automatic selection) which concerns on this embodiment. The flowchart which shows an example of the simultaneous reproduction | regeneration processing (sub reproduction program manual selection) which concerns on this embodiment. The figure which shows the example of a display of a sub reproduction | regeneration candidate program list.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording / reproducing apparatus 10 Reception part 20 Encoding part 30 Decoding part 36 Video composition part 50 Control part 51 Recording control part 52 Program selection part 60 Optical disk drive part 70 HDD part

Claims (10)

A receiver for receiving TV broadcasts;
A recording control unit for recording the received television broadcast program on a recording medium;
A program selection unit for selecting a main reproduction program and a sub reproduction program to be reproduced simultaneously from a plurality of programs recorded on the recording medium;
A reproducing unit for reproducing the selected main reproduction program and the sub reproduction program from the recording medium;
The video signal of the main reproduction program and the video signal of the sub reproduction program are combined so that the main reproduction program is displayed on the main screen and the sub reproduction program is displayed on a sub-screen provided in a part of the parent screen. And a video composition unit
A recording / playback apparatus comprising: The recording control unit
When recording on the recording medium, a program that can be the sub-playback program is selected as a sub-playback candidate program from the broadcast programs, and identification information indicating the selected sub-playback candidate program is combined with the recording medium. Record
The program selection unit
Selecting the sub-playback program from the recording medium based on the identification information;
The recording / reproducing apparatus according to claim 1. The receiver extracts electronic program guide information from the television broadcast,
The recording control unit
Selecting the sub-playback candidate program based on specific genre information included in the electronic program guide information;
The recording / reproducing apparatus according to claim 2. The identification information includes flag information indicating whether or not the sub-playback candidate program has already been played back,
The program selection unit
Based on the flag information, the sub-playback program is selected from the unplayed sub-playback candidate programs,
The recording control unit
Updating and recording the flag information of the reproduced sub-playback candidate program to be played back,
The recording / reproducing apparatus according to claim 2. The recording control unit
When recording on the recording medium, a program that can be the sub-playback program is selected as a sub-playback candidate program from the broadcast programs, and identification information indicating the selected sub-playback candidate program is combined with the recording medium. Record
A list of the sub-playback candidate programs is displayed based on the identification information, and further includes a user interface capable of designating a desired sub-playback program from the displayed list,
The program selection unit
Selecting the sub-playback program specified via the user interface from the sub-playback candidate programs recorded on the recording medium;
The recording / reproducing apparatus according to claim 1. (A) receive a television broadcast,
(B) recording the received television broadcast program on a recording medium;
(C) selecting a main reproduction program and a sub reproduction program to be reproduced simultaneously from a plurality of programs recorded on the recording medium;
(D) reproducing the selected main reproduction program and the sub reproduction program from the recording medium;
(E) A video signal of the main reproduction program and a video signal of the sub reproduction program so that the main reproduction program is displayed on a main screen and the sub reproduction program is displayed on a sub-screen provided in a part of the main screen. And
A recording / playback method comprising steps. In step (b)
When recording on the recording medium, a program that can be the sub-playback program is selected as a sub-playback candidate program from the broadcast programs, and identification information indicating the selected sub-playback candidate program is combined with the recording medium. Record
In step (c)
Selecting the sub-playback program from the recording medium based on the identification information;
The recording / reproducing method according to claim 6. In step (a), electronic program guide information is extracted from the television broadcast,
In step (b)
The sub reproduction candidate program is selected based on specific genre information included in the electronic program guide information.
The recording / reproducing method according to claim 7. The identification information includes flag information indicating whether or not the secondary reproduction candidate program has already been reproduced,
In step (c)
Based on the flag information, the sub-playback program is selected from the unplayed sub-playback candidate programs,
(F) The method further comprises a step of updating and recording the flag information of the reproduced sub-reproduction candidate program so as to be reproduced.
The recording / reproducing method according to claim 7. In step (b)
When recording on the recording medium, a program that can be the sub-playback program is selected as a sub-playback candidate program from the broadcast programs, and identification information indicating the selected sub-playback candidate program is combined with the recording medium. Record
(G) further comprising the step of displaying a list of the sub-playback candidate programs based on the identification information and inputting designation information of a desired sub-playback program designated by the user from the displayed list.
In step (c)
Selecting the designated sub-playback program from the sub-playback candidate programs recorded on the recording medium;
The recording / reproducing method according to claim 6.

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