WO2006025606A1

WO2006025606A1 - Data broadcasting recording method and device, and recording medium

Info

Publication number: WO2006025606A1
Application number: PCT/JP2005/016559
Authority: WO
Inventors: Satoshi Itoi
Original assignee: Nec Corporation
Priority date: 2004-09-02
Filing date: 2005-09-02
Publication date: 2006-03-09

Abstract

Data broadcasting data having a first type time map is recorded as a first recording mode in a first file (301). Data broadcasting data having a second type time map or having no time map is recorded in a second file (302). The second file (302) includes the second type time map, namely, data broadcasting data (303) having a second recording mode and data broadcasting data (304) not having a time map. Management data is recorded in a third file (305), the first type time map is recorded in a fourth file (306) and the second type time map is recorded in a fifth file (307). The third file (305) includes a recording mode flag (308) of each file.

Description

Description Data broadcasting recording method, apparatus, and recording medium TECHNICAL FIELD

The present invention relates to a digital broadcast data broadcast, an audio broadcast recording / playback method, a device, and a recording medium in a recording device such as a hard disk DVD combo video recorder, a DVD video recorder, a DVD stream recorder, and a hard disk video recorder. Background art

Conventionally, video and stream related application formats on DVD (Digital Versatile Disc) are DVD-Video for playback only, DVD-VR (Video Recording) and broadcast that are easy to record and edit at DVD-Forum. Alternatively, the DVD-SR (Stream Recording) format that facilitates direct recording and playback of transmission streams has been standardized.

DVD-Video is a disc playback format that contains pre-recorded content such as movies, and has a home theater as the main target. DVD-VR is a format whose main purpose is to digitize analog video and record it with MPEG-2 encoding. The main target is analog broadcast recording and a video camera. DVD-SR is a format that basically records data sent as an MPEG stream as it is, and uses direct recording of digital broadcasts as the main target. Currently, DVD-Video is widely distributed around the world, and DVD-VR is also becoming very popular, but DVD-SR is not commercialized.

Here, when recording broadcast video and audio data on a DVD or the like, the only consideration was whether the digital broadcast was recorded directly or the analog broadcast was digitized. Data broadcasting records were not taken into account.

In other words, analog broadcasting and digital broadcasting could only coexist on the same medium as DVD-VR and DVD-SR formats, respectively. Regarding digital broadcasting, It was only possible to record directly on the media without processing anything. If data broadcasting is to be recorded alone, for example, data broadcasting data may be recorded as PES_private_data defined in MPEG-2 format, while Japanese Patent Laid-Open No. 2 0 0 3-2 8 No. 8 7 6 7 discloses multi-functionality while maintaining compatibility in video / audio stream recording, and optimal data transmission / reception and recording with other video recording equipment such as video recording. A possible recording method has been proposed.

However, when broadcasting video / audio data is recorded by the recording method as described above, the following problems can be raised.

That is, a medium in which a digital broadcast is recorded in the DVD-SR format cannot be read overnight by a DVD player or a DVD recorder that supports a normal DVD-Video or DVD-VR format.

Also, data recorded in DVD-Video or DVD-VR format after MPEG encoding of analog broadcasts cannot be transmitted as is, even if data communication with other devices is attempted.

In addition, variable speed playback, time search, title search, or chapter search cannot be realized for data files recorded without a time map by multichannel recording.

In addition, data broadcasting is not actually recorded, but it is considered that data broadcasting should be recorded in the future. When data broadcasting is recorded, it can be recorded as PES_private_data. However, because it is recorded as private data, there is no format specification, so compatibility between different devices is not possible. Even if compatibility is achieved, if the main broadcast and the data broadcast are multiplexed into one stream, the data broadcast data can be stored, edited, deleted, processed, specially played, etc. separately from the normal broadcast. It is very difficult. Furthermore, in the above-mentioned Japanese Patent Laid-Open No. 2 0 3-2 8 8 7 6 7, there is no mention of recording data broadcasts and problems in recording. In addition, even when digital broadcasts are recorded on DVD-SR, direct broadcast and data broadcasts, data broadcast content, and data broadcast channels If you do not search the recorded stream, the details will not be known. Even if the details are known, if the normal broadcast and the data broadcast are multiplexed into one stream, the data broadcast data is separated from the normal broadcast. Saving, editing, deleting, processing, special playback, etc. are very difficult.

When multi-channel digital broadcasting is realized, simultaneous recording of normal broadcasting and data broadcasting, simultaneous recording of multiple normal broadcasting and data broadcasting (simultaneous recording of normal broadcasting multi-channel recording and data broadcasting recording), multiple normal broadcasting And simultaneous recording of multiple data broadcasts

(Simultaneous recording of normal broadcast multi-channel recording and data broadcast multi-channel recording) is required, but in order to do this, multiple data must be processed simultaneously, which is very difficult.

In any case, in consideration of the recent increase in the number of multiplexed data broadcasts and digital broadcasts, it is necessary to propose a recording method and a reproduction method that can meet various user requirements. In this case, it is necessary to consider and solve the problems in the recording method and playback method that meet such requirements. Disclosure of the invention

Accordingly, the present invention has been made in view of the above-described problems of the prior art, and an object thereof is to provide a data broadcast recording method capable of arbitrarily and easily processing data broadcast data.

Another object of the present invention is to provide an apparatus for recording and / or reproducing data according to the recording method described above.

Still another object of the present invention is to provide a recording medium on which data is recorded according to the recording method described above.

The data broadcast recording method according to the first aspect (aspect) of the present invention uses data broadcasting or audio broadcasting data having a first type time map as one or more specific recording modes as a first recording mode. In the same manner, data broadcast or audio broadcast data having a time map of type π (2 <n≤k; k is an integer greater than or equal to 2) or without a time map is recorded in a file. Record in one or more specific files as the recording mode for n, and record the time map in one or more other files It is characterized by that.

The data broadcast recording method according to the second aspect (aspect) of the present invention uses data broadcast or audio broadcast data having a first type time map as a first recording mode as a first file. Record the data for data broadcasting or audio broadcasting with or without a time map of the nth type (2≤n≤k; k is an integer greater than or equal to 2). The mode is recorded in the nth file, and the time map is recorded in the k + 1st and subsequent files.

The data broadcast recording method according to the third aspect (aspect) of the present invention uses data broadcast or audio broadcast data having a first type time map as a first recording mode and one or more specific data. Record in a file and record data or audio broadcast data with either the first or second type time map or no time map in one or more specific files as the second recording mode. Similarly, for data broadcasting or audio broadcasting that has a time map of any of the first to nth (2≤n≤k; k is an integer greater than or equal to 2) or no time map The data is recorded in one or more specific files as the nth recording mode, and the time map is recorded in one or more other files.

The data broadcast recording method according to the fourth aspect (aspect) of the present invention provides data broadcasting or audio broadcasting data having a first type time map as a first recording mode to a first file. Record and record data or audio broadcast data with either the first or second type time map or no time map in the second file as the second recording mode, and so on. Data broadcast or audio broadcast data with any type of time map of 1st to nth (2≤n≤k; k is an integer greater than or equal to 2) or without a time map The recording mode is recorded in the nth file, and the time map is recorded in the k + 1st and subsequent files.

In the first recording mode, the data broadcasting recording method has the first type time map, and the second recording mode has the second type time map or time table, or the time map and time table. 2 types that have neither The time map corresponding to the first recording mode may be recorded in another file, and the time map or time table corresponding to the second recording mode may be further recorded in another file.

The data broadcasting recording method according to the fifth aspect (aspect) of the present invention has the first type time map in the first recording mode, and the first type in the second recording mode. You can choose from three types: a time map, a second type time map or time table, and no time map or time table, and the time map corresponding to the first recording mode can be selected for other files. The time map or the time table corresponding to the second recording mode is further recorded in one or more other files.

The data broadcasting recording method uses the first type time map as a time map indicating the relationship between PTS (Presentation on Time Stamp) and recording position, and the second type time map or time table. It may be a time map or a time table indicating the relationship between PATS (Packet Arrive Time Stamp; stream arrival time) and recording position.

In the data broadcasting recording method according to the sixth aspect of the present invention, the time map of the first type is represented as 1 STREF_SZ, which is the data capacity required for at least the first reference picture, that is, the I picture. 1 of SOBU—PB—TM, where the display time of Stream Object Un it (stream object) is indicated by the number of video frames or the number of fields, and S0BU_SZ, which is the number of sectors in which the SOBU is recorded. And the second type time map or time table has AT-S0BU_SZ, which is the number of sectors in which AT_S0BU, which is a block of data arriving at least every specific time, is recorded. To do.

The data broadcasting recording method according to the seventh aspect (side aspect) of the present invention is that PTS (Presentation on Time Stamp) and PATS (Packet Arriva IT me Stamp) at the time when the event occurs, Recording address at the time of occurrence, time required for the next event and broadcast time interval, number of recording sectors until the next event occurs; PTS and PATS at the time when the still image is updated, still The recorded address at the time the image is updated, the time required for the next still image to be updated, and the release time It is characterized in that one or more of the recording time interval and the number of recording sectors until the next still image is updated are recorded.

Furthermore, in the data broadcast recording method according to the seventh aspect of the present invention, in the first recording mode, PTS (Presentation on Time Stamp) and PATS (Packet Arri val) at the time when the event occurred. Time Stamp), the recording address at the time of the event, the time required for the next event and the broadcast time interval, the number of recording sectors until the next event; the time when the still image is updated PTS and PATS, recording address at the time when the still image is updated, required time and broadcast time interval until the next still image is updated, number of recording sectors until the next still image is updated; One or more may be recorded.

In addition, the data recording method according to the eighth aspect of the present invention includes a time of entry one point (PTS and PATS) or a recording address, a game score at each entry point 、, an e-commerce purchase processing status, a quiz. It is characterized by recording one or more of the response status and sweepstakes application status.

Furthermore, in the data recording method according to the eighth aspect of the present invention, in the first recording mode, the entry point time (PTS and PATS) or the recording address, the game score at each entry point, and the E-commerce One or more of purchase processing status, quiz response status, and sweepstakes application status may be recorded.

In addition, the data broadcast recording method according to the ninth aspect (side) of the present invention is that, in data carousel broadcasting, PTS and PATS at the beginning of the carousel, PTS and PATS at the end of the carousel, carousel. It has one or more of the required time and broadcast time interval from the start point to the end point, the address at the start point of the carousel, the address at the end point of the carousel, and the number of sectors required for the carousel.

Furthermore, in the data broadcast recording method according to the ninth aspect of the present invention, in the first recording mode, in the data carousel broadcast, PTS and PATS at the carousel start time, PTS and PATS at the carousel last time, Required time and broadcast time interval from the beginning of one cell to the final time, address at the beginning of the carousel, address at the end of the carousel, carousel required time One or more of the numbers may be recorded.

A broadcast video / audio data reproducing apparatus according to the 10th aspect (side surface) of the present invention is a broadcast video / audio data recording apparatus for recording data by any of the recording methods described above, and Z, or data recorded by any of the recording methods described above is reproduced.

Further, the broadcast video / audio data recording medium according to the first aspect of the present invention is a broadcast video / audio data recording medium recorded by any of the recording methods described above. And Brief Description of Drawings

FIG. 1 is a block diagram showing the overall configuration of a data recording / reproducing apparatus for realizing data broadcast recording according to the present invention.

FIG. 2 is a block diagram specifically showing a portion for reproducing and outputting data broadcasting, audio broadcasting, and Internet additional information according to the present invention.

FIG. 3 is a diagram for explaining a recording method according to an embodiment of the present invention.

FIG. 4 is a diagram for explaining a recording method according to another embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment according to the present invention will be described with reference to FIGS.

Referring to FIG. 1, there is shown a broadcast video / audio data recording / reproducing apparatus that realizes broadcast video / audio data recording according to the present invention. In addition, although each block in the apparatus is illustrated by way of example mainly using software, it may be realized by hardware.

Figure 1 shows an example of recording normal digital broadcast, data broadcast, audio broadcast, teletext broadcast, analog broadcast, and Internet additional information in ^ 1 0 0 or 0 0 video recorder. Digital broadcast wave 101, analog broadcast wave, and non-broadcast related information 103 are input. In this example, it is assumed that the non-broadcast related information 1 0 3 is Internet additional information.

Input digital broadcast wave 1 0 1 is normal broadcast without linked data broadcast, or continuous All or part of normal broadcasting with dynamic data broadcasting, independent data broadcasting, audio broadcasting, or text broadcasting. These are all TS (Transport Stream). TS is one of the MPEG-2 playback systems, and is a stream that can be generated by synchronizing (sending simultaneously) a video stream and an audio stream. Since multiple programs can be configured in one stream, it can also be used for broadcasting. Thereby, various information can be carried on the broadcast.

TS is assumed to be applied in environments where data transmission errors occur, such as broadcasting and communication networks, and is used for digital broadcasting.

On the other hand, the analog broadcast wave 10 2 is a normal broadcast, and the analog broadcast wave is converted into a digital signal inside. The tuner encoder 10 6 demodulates or encodes the analog broadcast and is encoded. The output is output in the form of PS (Program Stream). PS is one of the MPEG-2 playback systems. It is a stream that can synchronize (send simultaneously) a video stream and an audio stream. Only one program is configured in one stream. Yes. PS assumes that it applies to the transmission and accumulation of data in an error-free environment. Further, the Internet additional information 103 includes Internet information related to broadcasting, program additional information, director's cut information, director's comment information, e-commerce information, chat information, notice information, and the like. These are not basically TS.

When viewing content, there are various data that are transmitted to and received from the Internet in synchronization with the content. The directors cut information, director comment information, and chat information are examples. The following briefly describes the information.

• Director's Cut: A scene (cut) specially shot by the director is called a director's cut. Received from the Internet and displayed on the monitor in sync with the content.

-Director's comment: Director's comment is the director's comment on each scene of the movie, the comment of the actor, the memories at the time of production, and the annotation. Usually received from the Internet, the director's comment is synchronized with the content. 10 is displayed on the monitor.

• Chat information: Personal users write their thoughts about the content on the bulletin board through the Internet, and others can see it and write their thoughts about it. However, the conversation information is chat information.

■ Streaming data: The user receives several M bps of video streaming data synchronized with the content from the Internet and displays it on the monitor. For example, movie trailers and commercial videos. This data is recorded in the SR_PRIVT.DAT file and can be played back freely.

The control signal 1 0 4 is input to the illustrated D V D video recorder. The control signal 10 4 is a signal that specifies the type of information to be recorded and the recording method among digital normal broadcast, data broadcast, audio broadcast, teletext broadcast, analog broadcast, Internet additional information, etc. 1 0 4 is a user operation signal given by the user. The digital broadcast wave, analog broadcast wave, Internet additional information, and control signal 104 described above may be input simultaneously or individually.

Digital broadcast input 1 0 1 is demodulated by tuner 1 0 5 and digital broadcast selection 1 0 8 Normal broadcast without linked data broadcast or linked data broadcast selected

1 0 9 Select normal broadcast with linked data broadcast or independent data broadcast 1 1

Select 0 for independent data broadcasting or audio broadcasting 1 1 Select audio broadcasting or text broadcasting by 1 1 Select text broadcasting by 1 1 2 and select integrated processing 1 1

5 done.

The analog broadcast input 102 is demodulated and MPEG encoded by the tuner's encoder 106, and is subjected to a selection integration process 115.

In the Internet input 10 3, necessary information is decoded in the Internet input 10 7, Internet additional information is selected by Internet additional information selection 1 1 4, and selective integration processing 1 15 is performed.

Integrated selection processing 1 1 5 results are digital broadcast selection 1 0 8, linked data broadcast selection 1 0 9, independent data broadcast selection 1 1 0, audio broadcast selection 1 1 1, text broadcast Select 1 1 2, Analog broadcast selection 1 1 3, Internet additional information selection 1 1 4 Select one or more data to be recorded, combine and output to recording format 1 1 6

Recording format conversion 1 1 6 performs selective integration processing 1 1 5 Recorded recording data, specifies a recording file, and according to the data type to be recorded based on the control signal 1 0 4 Management data is generated and recorded on the HDD 1 1 7 and DVD 1 1 8 as a dedicated management data overnight file or time map data file. The recording file structure will be described in detail later. That is, in this embodiment, the management data corresponding to the control signal which is a user operation signal is recorded in HD 1117 or DV 1118.

H D D 1 1 7 and D V D 1 1 8 indicate a hard disk and an optical disk recording medium, respectively.

Recording mode determination and time map generation processing 1 2 0 is a recording mode selection based on the control signal obtained from the processing result of 1 1 9 and shows the relationship between time and recording position suitable for the recording mode. Generate a time map or time table. The recording mode and the time map or time table that occurred are selected and integrated. Details on recording mode determination, time map or time table generation, and procedures will be described later.

Control signal 1 0 4 is recorded data 'Record file determination, management data generation, recording mode' Time map control processing 1 1 9 to select which data, time map or time table in selective integration processing 1 1 5 Select 'Integrated', Record Formatting 1 1 6 Specify what format to convert, specify the recording format and recording file, generate the management data of the selected integrated data, Record to HDD 1 1 7 and DVD 1 1 8 as a dedicated management data file. The details of the record file and management data will be described later. At the same time, for recording mode determination and time map generation 1 2 0, specify recording mode determination, time map or time table generation method.

The data recorded on HDD 1 1 7 and DVD 1 1 8 is dubbed between the two and played back as playback signal 1 2 1. As shown, the HDD Playback 1 and DVD may play playback signal 1 2 1 in the form of playback 2, and these playback signals 1 2 1 are selected by selecting playback 1 and playback 2 with a selector not shown. It may be played back as a system playback signal.

Fig. 2 shows a block diagram of a playback unit that plays back and outputs digital normal broadcast, data broadcast, audio broadcast, teletext broadcast, analog broadcast, and Internet additional information.

HD D 1 1 7. The signal reproduced from D V D 1 1 8 is selected by the selection process 2 0 1 and then subjected to the reproduction format decoding process 2 0 3.

At the same time, a control signal 2 0 2 is input by a user operation. The control signal 2 0 2 is a control input for decoding management data and determining a reproduction method.

The playback format decoding process 2 0 3 decodes the format of the signal selected by the selection process 2 0 1 and sends it to the next data decoding read block.

The data decoding read block shown in the figure is digital broadcasting decoding 20 4, interlocking data broadcasting decoding 2 0 5, independent data broadcasting decoding 2 0 6, audio / radio broadcasting decoding 2 0 7, text broadcasting decoding 2 0 8, When performing analog broadcast decoding 20 9 and Internet additional information decoding 2 1 0 and decoding each data, recording mode and time map decoding 2 1 1, the recording mode is decoded and the time map Or the timetable is read.

Then, the data decoded by the data decoding / reading block is subjected to a reproduction video reconstruction process 2 1 2.

In the playback video reconstruction process 2 1 2, the playback video signal is reconstructed from the video, audio, and data decoded according to each format by overlay etc.

In 2 1 3, digital Z analog conversion is performed.

Also, based on the results of management data decoding and playback method decision processing 2 1 4, playback format decoding processing 2 0 3 performs playback data designation and playback format decoding control, and records mode and time map decoding 2 1 1 For recording mode, time map or time table readout control, playback video reconstruction control for playback video reconstruction 2 1 2 is performed.

The signal converted by DZA 2 1 3 is output as external output signal 2 1 5. This As a result, video, audio, and data are output externally.

A first example of a data broadcast recording method according to the present invention will be described with reference to FIG. Data broadcast data having the first type time map is recorded in the first file 301 as the first recording mode. Here, the first type of time map represents the data specified in the DVD-VR format. Specifically, the “DVD Specifications for Rewritabl eZRe— recordable D iscs Part 3 VI DEO RECORD I NG Version 1.0 0 ”VR—includes data as shown in 35.

In the data broadcast recording method according to the present invention, data broadcast data not having the first type time map is also recorded. Specifically, data broadcasting data with a second type of time map or time table that is different from the first type of time map, or data broadcasting data with no time map or time table. Recorded in file 302. That is, in this specification, the data broadcast data having no time map of the first type is data broadcast data having a second type time map or time table different from the first type time map, And data broadcasting data that has neither time map nor time table shall be included.

As is clear from this, the data broadcasting data recorded in the second file 302 can be obtained only by the second type time map or time table, that is, the data broadcasting data 303 having the second recording mode. In addition, data broadcast data 304 having neither a time map nor a time table is included.

The management data is recorded in the third file 305, the first type time map is recorded in the fourth file 306, and the second type time map or time table is recorded in the fifth file 307. The third file 305 includes a recording mode flag 308 for each file.

The first type of time map 306 includes 1STREF_SZ which is the data capacity required for the first reference picture, that is, the I picture, and the display time of the SOBU (Stream Object Unit). It consists of S0BU_PB—TM indicated by the number of fields and S0BLLSZ which is the data capacity required for the S0BU. Here, S0BU indicates a data chunk of a predetermined time or a data chunk of a predetermined bit amount. A representative example is GOP (Group Of Pictures).

The second type time map or time table 3 07 is composed of AT_S0BU_SZ which is a data capacity required for AT_S0BU (Arrivaltime SOBU). Here, AT_S0BU indicates a data chunk of a predetermined time or a data chunk of a predetermined bit amount. A typical example is a chunk of data that arrives every 10 seconds.

Next, the operation during playback will be described with reference to FIG.

The playback device first reads management data including the flag 3 0 8 from the third file 3 0 5. By identifying the management data, the playback device records the stream data having the first type time map in the first file 3 0 1 and the stream recorded in the first file 3 0 1.知る Know that the time map of the dream data is recorded in the fourth file 3 06.

Further, the playback device records stream data 30 3 having the second time map or time table in the second file 30 2 and has neither the time map nor the time table. 3 0 4 is recorded, and knows that the time map or time table of stream data is recorded in the fifth file.

Next, the playback device uses the stream data of the first file 3 0 1, the stream data 3 0 3 recorded in the second file 3 0 2, the stream data 3 0 4, and the fourth file 3 0 6 The time map of the first type recorded in the second time map or time table recorded in the fifth file 3 07 is read out. For the stream data recorded in the first file 3 01, the playback device clearly distinguishes the relationship between the display time and the recorded address by the first type time map recorded in the 4 th file 3 0 5. Therefore, accurate time search and variable speed playback can be performed.

On the other hand, of the streams recorded in the second file 3 0 2, for the stream 3 0 3, the data arrives according to the second type or time table. The relation between the display time and the recording address can be roughly understood from the relation between the data arrival time and the recording address. For this reason, simple time search and variable speed playback are performed, though not completely accurate. Time search and variable speed playback are not performed for stream data 3 04 without a time map recorded in the second file 30 2.

In the example described above, the time information of the data broadcasting stream can be processed according to the number of streams to be multiplexed. That is, when the number of streams to be multiplexed is small, an accurate time map is recorded. On the other hand, when the number of streams to be multiplexed is large, time information is recorded with a small amount of calculation and further multiplexed. If the number of power streams is large, it is possible to multiplex and record more data broadcast streams by not recording time information. Further, in the example shown in FIG. 3, a data broadcast stream having a first type time map is recorded in a single first file 3 0 1 and other data broadcast streams are recorded in a single file. By recording in the second file 300, management by management data becomes easy. With reference to FIG. 4, a second example of the data broadcast recording method will be described.

The data broadcast data having the first type time map is recorded in the first file 4101 and the second file 4202 as the first recording mode.

Data broadcasting data having the second type time map or time table, or having neither the time map nor the time table is recorded in the third file 4 03 and the fourth file 4 0 4. The third file 4 03 includes a second type time map or time table, that is, data broadcast data 4 0 5 having the second recording mode, data having neither a time map nor a time table. Broadcast data 4 0 6 is included. The fourth file 40 4 contains a second type of time map or time table, ie, data broadcast data 40 7 with the second recording mode, data release without any time map or time table. Send data 4 0 8 is included.

Management data for the 5th file 4 0 9 and 1st file 4 0 1 for data broadcasting data 1st type time map 6th file 4 1 0, 2nd file 4 0 2 data The first type time map for broadcast data File 4 1 1, second type time map or time table for data broadcast data 4 0 5 to 8th file 4 1 2, second type time map or time table for data broadcast data 4 0 7 Is recorded in the 9th file 4 1 3. Further, the fifth file 4 09 includes a recording mode flag 4 1 4 for each file.

The first type time map recorded in the 6th and 7th files 4 1 0, 4 1 1 is 1STREF_SZ, which is the data capacity required for the first reference picture, that is, the I picture, and the display time of the S0BU. It consists of S0BU_PB_TM indicated by the number of video frames or fields and S0BU_SZ which is the number of sectors in which the S0BU is recorded.

The second type time map or time table recorded in the 8th and 9th files 4 1 2 and 4 1 3 is the same as the sector in which AT_S0BU, which is a lump of data arriving every 10 seconds, is recorded. It consists of AT_S0BU_SZ which is a number.

Next, the operation during playback will be described with reference to FIG. The playback device first reads out the fifth file 4 09 in which the management data 4 09 including the flags 4 14 is recorded. Based on the management data, the playback device must record data broadcast data having the first type time map in the first file 4 0 1 and the time map in the sixth file 4 1 0. In addition, it is known that the data broadcasting data having the first type time map is recorded in the second file 4 0 2 and the time map is recorded in the seventh file 4 1 1. In addition, the playback device records data broadcast data 4 0 5 having the second type time map or time table in the third file 4 03, and the time map or time table is the 8 th It is known from the management data that it is recorded in file 4 1 2 and that data broadcast data 4 06 without time map is recorded. Similarly, the playback device records data transmission data having the second time map or time table in the fourth file 4 04, and the time map or time table is recorded in the ninth file 4 13. It is identified from the management data that it is recorded, and that the data broadcast data 40 8 without time map is recorded in the fourth file 40 4. Subsequently, the playback device transmits the data broadcast data of the first file 4001, the second file. Data broadcast data of the file 4002, data broadcast data of the third file 4005, and data broadcast data 407 of the fourth file 400. In this case, the corresponding time map is read from the sixth file 4 10, the seventh file 4 1 1, and the eighth file 4 1 2. In this case, the playback device clearly understands the relationship between the display time and the recording address for the data broadcast data of the first and second files 4 0 1 and 4 0 2 having the first time map by the time map. Therefore, variable speed playback can be performed with an accurate time search. On the other hand, for the data broadcast data 4 0 5 and 4 0 7 having the second time map, the playback device can know the relationship between the arrival time of the data and the recording address by the second time map or time table. Since the relationship between the display time and recording address is roughly known, simple time search and variable speed playback are performed, though not completely accurate.

Furthermore, the playback device does not perform time search or variable speed playback for the data broadcast data without time map recorded in the third and fourth files 40 3, 4 0 4.

In the example described above, the time information of the data broadcast stream can be processed according to the number of streams to be multiplexed. In addition, as shown in the figure, the data broadcast stream having the first type time map is individually recorded in a plurality of files and is read by using the individually recorded time map. Time information for each multiplexed channel can be managed.

Further, in the case of the example shown in FIG. 4, the data transmission stream having the first type time map is recorded in the first and second files 4 0 1 and 4 0 2 and the other data broadcast streams are recorded. By recording in the third and fourth files 4 0 3 and 4 0 4, management by management data becomes easy.

In FIG. 4, the first file 4 0 1 and the second file 4 0 2 may be combined to form one file, or the third and fourth files 4 0 3 and 4 0 4 May be combined into a single file.

Further, the data broadcast data 4 0 5 having the second time map or time table and the data broadcast data 4 0 6 not having the second time map or time table may be recorded in separate files, Similarly, 4 0 7 and 4 0 8 are Each may be a separate file.

4 1 0 and 4 1 1 may be combined to form one file.

4 1 2 and 4 1 3 may be combined to form one file.

Furthermore, regarding 40 1 to 4 1 3, combinations of file configurations can be freely set.

Further, 403 or 404 may be composed only of data having the second type time map or time table, or may be composed only of data without a time map. Alternatively, data with the first type of time map may be included.

Regarding the time map and time table, data other than the examples may be included.

Next, the recording mode flag 308 or 4 14 of each file will be described. The recording mode flag indicates whether the stream has a first type time map, a stream with a second type time map or time table, or a stream without a time map. It is shown. An example of this flag is shown below.

The file containing management data is HR_MANGR.IF0.

HRJANGR.IF0 consists of Stream File Information Table (STM—AVFIT) and other data. STILAVFIT is a tape generated in units of stream files.

The Stream File Information Table (STM—AVFIT) is composed of SOB Stream Information # 1 to SOB Stream Information #n and other data. SOB Stream Information is stream information that is generated once for each recording.

SOB Stream Information consists of STM—ATR (Stream Attribute) and other data.

In STM.ATR, the following flags shall be included.

■ Recording mode

0: Stream with first type time map 1: Stream without first type time map

-ap type for stream

00: Recording mode = 0, or Stream with Recording mode = 1 and first type time map

01: Stream with recording mode = 1 and second type time map or time table

10: Recording mode = 1 and stream without time map or time table

11: Hold

The first type of time map is data that includes the following data.

1, 1STREF_SZ: When an integer GOP (Group Of Pictures) of 1 or more is set to SOBU (Stream Object Unit), the size of the first reference picture in SOBU, i.e., I picture, is indicated by the number of packet groups or sectors. It is. Here, the packet group indicates data including a predetermined number of buckets (for example, 170 TS buckets) and a bucket 卜 group header.

2. S0BU_PB_TM: The time during which the S0BU is played back is indicated by the number of video fields or video frames

3, S0BU_SZ: The size in which the S0BU is recorded is indicated by the number of bucket groups or sectors.

The second type of time map or time table is data containing the following data.

1, AT—S0BLLSZ: For example, when the data block that arrives every 10 seconds is S0BU, the S0BU size is indicated by the number of bucket groups or the number of sectors.

Next, in data broadcasting, the following data may be recorded.

PTS and PATS (Packet Arrival Time Stamp) at the time of the event, the recording address at the time of the event, the time required for the next event and the broadcast time interval, and the time until the next event occurs The number of recording sectors may be recorded. Furthermore, PTS and PATS (Packet Arrival Time Stamp) at the time when the still image is updated, and the recording address at the time when the still image is updated. Less, the time required until the next still image is updated and the broadcast time interval, and the number of recording sectors until the next still image is updated may be recorded.

Here, an event means an event such as a new contestant appearing at a concert or a torch runner appearing at the opening ceremony of the Olympics. The record data related to the event has a new event (event). This data indicates the point in time, and is multiplexed and sent in the broadcast signal.

The recording data may be recorded only in the first recording mode and not recorded in the second and subsequent recording modes.

Next, in data broadcasting, the following data may be recorded.

Entry point time (PTS and PATS) or recording address, and at least one of the game score, e-commerce purchase processing status, quiz response status, and sweepstakes application status at each entry point may be recorded.

The entry point is a point that the user decides freely.

Next, in data broadcasting, in data carousel broadcasting, PTS and PATS at the beginning of the carousel, PTS and PATS at the end of the carousel, time required from the beginning of the carousel to the final time, and the broadcast time interval, carousel The address at the beginning, the address at the end of the carousel, the number of sectors required for the carousel, etc. may be recorded.

Carousel broadcasting is a broadcasting method in which the same data is periodically broadcast in data broadcasting.

The data may be recorded only in the first recording mode and not recorded in the second and subsequent recording modes.

An example of the data described above is shown.

For STM—ATR, the following data is placed after -Recording mode, ■ Map content for stream.

, Event start PTS: PTS when event occurred

-Event start PATS: PATS at the time of event occurrence • Event start ADR: Record address when event occurred

-Event FLD: Indicates the time required until the next event occurs in the number of fields

■ Event PATS: Shows the broadcast time interval until the next event occurs, that is, the time interval when the broadcast wave arrives, in the number of fields.

-Event sz: Number of recording sectors until the next event occurs

■ Spic start PTS: PTS when the still image is updated

■ Spic start PATS: PATS when the still image is updated

■ Spic start ADR: Record address when the still image is updated

■ Spic FLD: Indicates the time required until the next still image is updated in the number of fields

■ Spic PATS: Indicates the broadcast time interval until the next update of the still image, that is, the time interval at which the broadcast wave arrived in the number of fields

• Spic sz: Number of recording sectors until the next still image is updated

• Entry point PTS: Display time of entry point (PTS)

■ Entry point PATS: ENTRY point broadcast radio wave arrival time (PATS)

■ Entry point ADR: Entry point

■ Game Information: Game information at entry points

Game name, Game score 1, Game score 1, Game score 3, Game score 4, Game score 5,

High score 1, High score 1, High score 3, Hi h score 4, High score 5, Low score 1, Low score 1, Low score 3, Low score 4, Low score 5, Average score '

■ Ecoranerce: E-commerce purchase status

Product name, Price, Status (procedure status; in process or complete)

■ Quiz: Quiz response status

Quiz name, Quiz score 1, Quiz score 2, Quiz score 3, Quiz score 4, Quiz score 5 _S

High score 1, High score 1, High score 3, High score 4, High score 5, Low score 1, Low score 1, Low score 3, Low score 4, Low score 5, Average score

■ Present: Sweepstakes application status

Response status (Application status, applied or not applied)

■ Carousel start PTS: PTS at the beginning of the carousel

■ Carousel start PATS: PATS at the beginning of the carousel

■ Carouse l end PTS: PTS at the end of the carousel

■ Carouse l end PATS: PATS at the end of the carousel

■ Carouse l FLD: Indicates the required time from the beginning to the end of the carousel in the number of fields.

-Carousel PATS: Shows the time interval from the arrival of the first carousel to the arrival of the last radio wave in the number of fields.

■ Carouse l start ADR: Address at the beginning of the carousel

-Carouse l end ADR: Address at the end of the carousel

■ Carouse l sz: Power required number of sectors required

As described above, in the present invention, data broadcasting is performed using data having a first type time map, data having a second type time map or time table, data having neither a time map nor a time table ( In other words, it is classified as data that does not have the first type of time map. In this case, when only data broadcasting is recorded and signal processing has a margin, the first type time map is generated, and at the same time, multi-channel normal broadcast video is recorded, so there is no margin for signal processing. When a second type time map or time table is generated, and when there is no room for calculation, neither a time map nor a time table can be generated. There is an advantage that the optimum recording can be performed.

In the present invention, it is also possible to add a time map or time table of the first type or the second type later for data recorded without a time map. For data with timetables, it is possible to generate the first type of time map later, which enables more advanced search, editing, and special playback functions. It has “Meritsu”.

The file structure related to the stream, time map, and table shown above may not be the same as that illustrated.

In the management data shown above, the data structure, data arrangement order, flag name, number of bits, and bit allocation may not be the same as those illustrated.

The management data shown above can be generated in larger or smaller units.

In addition, the start address, end address, and data length when these management data are recorded on the recording medium may be recorded as appropriate.

Regarding the time map and the table indicating the relationship between the arrival time of the broadcast stream and the recording address, data other than the example may be recorded.

Stream is not only a lanceports stream, but also a program stream,

The same applies to P E S and E S.

Further, the present invention includes a data recording apparatus that records data by the recording method described above or a data reproducing apparatus that reproduces data recorded by the recording method described above.

Further, a recording medium on which recording has been performed by the recording method described above is also included in the present invention.

Claims

1. Record data for data broadcasting or audio broadcasting with the first type time map as the first recording mode in one or more specific files,

Similarly, data broadcasting or audio broadcasting with a time map of type η (2 ≤ n ≤ k; k is an integer greater than or equal to 2) or without a time map is designated as the nth recording mode. Blue A data broadcasting recording method characterized by recording in one or more specific files and recording a time map in one or more other files.

of

2. Record data for data broadcasting or audio broadcasting with the first type time map in the first file as the first recording mode,

Similarly, data broadcasting or audio broadcasting data having a time map of the nth type (2≤n≤k; k is an integer of 2 or more) or having no time map is designated as the nth recording mode. A data broadcast recording method comprising: recording in a file of n, and recording a time map in a file after the k + 1st.

3. Record the data for data broadcasting or audio broadcasting with the first type time map in one or more specific files as the first recording mode,

Data broadcasting or audio broadcasting data with or without a time map of the first or second type is recorded in one or more specific files as the second recording mode,

Similarly, data broadcasting or audio broadcasting data having a time map of any one of the first to nth (2≤n≤k; k is an integer greater than or equal to 2) or without a timemap, A data broadcast recording method comprising: recording in one or more specific files as the nth recording mode, and recording a time map in one or more other files.

4. Record the data for data broadcasting or audio broadcasting with the first type time map in the first file as the first recording mode, Data broadcasting or audio broadcasting data with or without the first or second type time map is recorded in the second file as the second recording mode.

Similarly, data broadcasting or audio broadcasting data having a time map of any type among the 1st to n-th (2≤n≤k; k is an integer of 2 or more) or having no time map is used. A data transmission recording method comprising: recording in the nth file as a recording mode of n, and recording a time map in a file after the k + 1.

5. The first recording mode has the first type time map,

In the second recording mode, you can choose from two types: a time map or time table of the second type, or no time map or time table. Other time maps corresponding to the first recording mode can be selected. 3. The data broadcast recording method according to claim 1, wherein the time map or the time table corresponding to the second recording mode is further recorded in another file.

6. In the first recording mode, it has the first type time map,

In the second recording mode, you can choose from three types: having a first type of time map, having a second type of time map or time table, and having no time map or time table. The time map corresponding to the first recording mode is recorded in another file, and the time map or time table corresponding to the second recording mode is further recorded in one or more other files. Item 5. The data broadcast recording method according to item 3 or 4.

7. The first recording mode has the first type time map and

In the second recording mode, you can choose from two types: a time map or time table of the second type, or no time map or time table. Other time maps corresponding to the first recording mode can be selected. Time map or time table corresponding to the second recording mode. Record

The first type time map is a time map indicating the relationship between the PTS (Presentation Time Stamp) and the recording position, and the second type time map or time table is the PATS (Packet Arrival Time Stamp; The data broadcast recording method according to claim 1 or 2, wherein a time map or a time table showing a relationship between a stream (arrival time) and a recording position is used.

8. The first recording mode has a first type of time map, and the second recording mode has a first type time map, or a second type time map or time table. You can select from three types: no time map, no time table, and a time map or a time map corresponding to the second recording mode. Record the timetable in one or more other files,

The first type time map is a time map indicating the relationship between the PTS (Presentation Time Stamp) and the recording position, and the second type time map or time table is the PATS (Packet Arrival Time Stamp; 5. The data broadcast recording method according to claim 3, wherein a time map or a time table showing a relationship between a stream (arrival time) and a recording position is used.

9. The first recording mode has the first type of time map and the second recording mode has the second type of time map or time table, or no time map or time table. The time map corresponding to the first recording mode is recorded in another file, the time map or time table corresponding to the second recording mode is recorded in another file,

The first type time map is a time map indicating the relationship between the PTS (Presentation Time Stamp) and the recording position, and the second type time map or time table is the PATS (Packet Arrival Time Stamp; A time map or time table showing the relationship between the stream arrival time and the recording position, The first type time map is at least a first reference picture

—That is, 1STREF_SZ, which is the data capacity required for an I picture, S0BU_PB_TM in which the display time of the SOBU (Stream Object Unit) is indicated by the number of video frames or the number of fields, and the sector where the SOBU is recorded And one or more of S0BU_SZ,

The second type time map or time table has AT_S0BU_SZ, which is the number of sectors in which AT_S0BU, which is a block of data that arrives at least every specific time, is recorded.

The data broadcast recording method according to claim 1 or 2, characterized in that

1 0. The first recording mode has the first type of time map, and the second recording mode has the first type of time map or the second type of time map or timetable. Or a time map or time table that can be selected from three types, a time map corresponding to the first recording mode is recorded in another file, and a time map or time map corresponding to the second recording mode is recorded. Record the timetable in one or more other files,

The time map of the first type is a time map indicating the relationship between PTS (Presentation on Time Stamp) and recording position, and the second type of time map or time table is PATS (Packet Arr. i val Time Stamp (stream arrival time) and a time map or time table showing the relationship between the recording position and the first type of time map, the data capacity required for at least the first reference picture, that is, the I picture 1STREF_SZ, SOBU (Stream Object Unit) is displayed as the number of video frames or fields, SOBU—PB_TM, and S0BU_SZ is the number of sectors where the SOBU is recorded. Have at least two,

5. The data broadcast recording method according to claim 3, wherein the data broadcast is recorded.

1 1. PTS (Presentation Time Stamp) and PATS (Packet Arrival Time Stamp) at the time of event occurrence, recording address at the time of event occurrence, time required for next event occurrence and broadcast time interval The number of recording sectors until the next event occurs,

PTS and PATS at the time when the still image is updated, the recording address at the time when the still image is updated, the required time and broadcast time interval until the next still image is updated, and then the still image is updated The number of recording sectors up to

A data broadcast recording method, wherein one or more of the above are recorded.

1 2. In the first recording mode,

PTS (Presentation Time Stamp) and PATS at the time of the event

(Packet Arrial Time Stamp), the recording address at the time of event occurrence, the time required for the event occurrence and the broadcast time interval, the number of recording sectors until the event occurrence,

5. The data broadcast recording method according to claim 1, wherein at least one of the data is recorded.

1 3. Record the entry point time (PTS and PATS), recording address, and one or more of the game score, e-commerce purchase status, quiz response status, and sweepstakes application status at each entry point. A data broadcast recording method.

1 4. In the first recording mode,

Entry point time (PTS and PATS), recording address, game score at each entry point, e-commerce purchase processing status, quiz One or more of the response status and sweepstakes application status are recorded.

The data broadcast recording method according to any one of 1 to 4.

1 5. In data carousel broadcasting, PTS and PATS at the beginning of the carousel, PTS and PATS at the end of the carousel, the required time and broadcast time interval from the beginning of the carousel to the end, the address at the beginning of the carousel, Address at the end of the carousel, number of sectors required for the carousel

A data broadcast recording method comprising one or more of the above.

1 6. In the first recording mode, in data carousel broadcasting, PTS and PATS at the beginning of the power carousel, PTS and PATS at the final time of the carousel, the required time and broadcast time interval from the first time to the final time of the carousel, Address at the beginning, address at the end of the carousel, force Number of required sectors

The data broadcast recording method according to any one of claims 1 to 4, wherein one or more of them are recorded.

1 7. A broadcast video / audio data recording device for recording data by the recording method according to any one of claims 1 to 4, and Z or a recording method according to any one of claims 1 to 4. A broadcast video / audio data playback device for playing back recorded data.

1 8. A broadcast video / audio data recording medium recorded by the recording method according to claim 1.

1 9. Generate data having a predetermined first type time map as first data, and record the first data in a specific file in a first recording mode. Generating second data not having the time map of the first type, and recording the second data in a separate file different from the first file as the second recording mode. And a step characterized in that Data broadcasting recording method.

20. The claim 19, wherein the specific file includes a first file that records the first data and a first time map file that records the first type time map. A data broadcast recording method characterized by the above.

21. The data according to claim 20, wherein the second data has a second type time map different from the first type time map or does not have a time map. Broadcast recording method.

2. The second file according to claim 21, wherein the separate file is a second file for recording the second data, and a second time map for recording the second time map for recording the second type time map. A data broadcast recording method comprising a map file.

2 3. In Claim 21, the second data further includes at least one third type time map different from the first and second type time maps, and the separate file further includes: A data broadcast recording method comprising: a third time map file for recording three types of time maps.

2 4. The claim 1, wherein the first type of time map included in the first data includes data defined by the DVD-DR Forum. Data broadcast recording method.