KR20000025848A - Method for generating replay management information of broadcasting program and device thereof - Google Patents

Abstract

The present invention provides a method for generating broadcast program reproduction management information to generate management information of the stored broadcast program when receiving a digital broadcast program and storing the same on a recording medium such as a digital video disc, and the category of stored digital broadcast program. The present invention relates to a method for automatically generating a play list and a device for automatically generating a play list of reproduction order information by grouping programs according to the present invention. The program guide information is used to automatically generate management information for managing information on attributes of each broadcast program, and the method for automatically generating a playlist according to the present invention and a device for storing digital broadcast data streams. Contained in Determine the category of the program that is stored by the program guide information, and by grouping the program according to the category of program automatically creates a playlist reproducing procedure information.

Description

Method for generating broadcast program play management information, automatic play list generation method and apparatus therefor

According to the present invention, when a digital broadcasting program is received and stored in a recording medium such as a digital video disk, the broadcasting program is configured to generate management information of the stored broadcasting program using electronic program guide information included in the received digital broadcasting program. The present invention relates to a method for generating a reproduction management information, and a method for automatically generating a reproduction list and a device for automatically generating a reproduction list which is reproduction order information by grouping programs according to a stored digital broadcast program category.

In the conventional analog television broadcasting, a video signal to be transmitted is modulated by AM or FM and transmitted through radio waves or cables. Recently, with the development of digital technologies such as digital image compression and digital modulation and demodulation, the standardization of digital television broadcasting is advancing at a rapid pace, and digitalization based on MPEG (Moving Picture Experts Group) is also used in conventional terrestrial, satellite, and cable broadcasting. Doing.

According to the development of digital video / audio compression technology and digital transmission technology, the digital broadcasting can provide higher quality service than analog service, and can transmit a plurality of programs in the same bandwidth, and with digital communication media and digital storage media. It has the advantage of increasing interoperability.

In such a digital broadcast, a plurality of broadcast programs encoded on the basis of MPEG are multiplexed and transmitted in the form of a transport stream. The transport stream is received in a set top box installed on the receiving side, and the transport stream is transmitted. A plurality of programs included in the demultiplexed program are selected, and only one desired program is selected, and the original audio and video signals are decoded by a decoder built in the set-top box for the selected program, and the A / V output device such as a television Will be sent to.

In addition to receiving such digital broadcast signals and outputting them to an A / V output device such as a television, a research into a system for storing, editing, and reproducing the received broadcast signals in a storage medium has been conducted. After receiving the digital data stream from the set-top box, and storing it in a streamer such as a digital video disc (DVD) recorder through a communication interface such as an IEEE-1394 serial bus, and storing the stored digital data stream. Research into a system that can reproduce digital audio and video through an AV output device such as a television by editing and reproducing and transmitting the communication interface to a set-top box via a medium is in progress.

In the above system, when a broadcast program is stored on a recording medium, development of a method for automatically generating and recording management information capable of managing information on attributes of each broadcast program is desired.

In addition, in the above-described system, when a plurality of programs included in a broadcast signal are recorded on a recording medium by a streamer for a predetermined time, the user needs to select and edit the playback order for the recorded programs after recording. There is a ham.

That is, when a plurality of programs are recorded on the recording medium, for example, "Drama 1, Sports 1, Nuus 1, Drama 2, Drama 3, Nuus 2, Sports 2", dramas are drama-by-drama and sports are sports. By the way, in order to play back by each newus, the newus has a problem in that the user has to edit a playlist for each program category while playing back after the recording of the programs is completed.

Accordingly, the present invention has been made to solve the above problems, and when receiving a digital broadcast data stream and storing the stream on a recording medium by the streamer, the program according to the category of the program included in the stored digital broadcast data stream is stored. It is an object of the present invention to provide a method and apparatus for automatically generating a playback order to automatically generate a play list which is playback order information by grouping.

In addition, the present invention provides a method for generating broadcast program reproduction management information that can automatically generate and record management information capable of managing information on attributes of each broadcast program when the broadcast program is stored on a recording medium. There is another purpose.

1 schematically shows a system to which a method for generating broadcast program reproduction management information and a method for automatically generating a playlist are applied according to the present invention.

2 and 3 show examples of stream attribute information and program category information included in electronic program guide information transmitted together with a digital broadcast program, respectively.

FIG. 4 exemplarily illustrates an embodiment of an application management information file table for managing a play list generated by the broadcast program play management information generation method and the play list automatic generation method according to the present invention;

FIG. 5A illustrates an example of a data format for the playlist search pointer table information shown in FIG. 4;

FIG. 5B shows an example of a data format for the playlist search pointer shown in FIG. 4;

FIG. 6A illustrates a configuration example of the play list type field of FIG. 5B;

FIG. 6B illustrates another configuration example of the play list type field of FIG. 5B;

FIG. 7 shows the configuration of the custom program chain information table shown in FIG. 4,

FIG. 8 shows the configuration of the program information table information shown in FIG. 4;

FIG. 9A illustrates an embodiment of a data format for the program stream information table of FIG. 8;

FIG. 9B illustrates an embodiment of a data format for the program stream information of FIG. 8;

10 shows a configuration of an original program chain table generated as a moving picture is recorded on a recording medium by a streamer.

11 is a diagram schematically illustrating a process in which an original program chain and a user-defined program chain are generated when a moving picture is recorded on a recording medium by a streamer.

12 is a flowchart illustrating an embodiment of a method for generating broadcast program play management information and a method for automatically generating a play list according to the present invention.

※ Explanation of code for main part of drawing

100: set-top box 110: station selection processing unit

120: decoder 130210: communication interface

140,250: control unit 150,260: memory

200: streamer 220: storage stream processing unit

230: recording medium (DVD) 240: read stream processing unit

According to an aspect of the present invention, there is provided a method for automatically generating a playlist, comprising: a first step of recording a received digital broadcast program; And a second step of generating a playlist by grouping the recorded broadcast programs according to the category of the broadcast program.

In addition, the automatic playlist generating apparatus according to the present invention comprises: recording means for recording a received digital broadcast program; Detecting means for detecting a category of the recorded broadcast program; And control means for recording the reproduction information of the recorded broadcast program in a reproduction list corresponding to the detected category.

In addition, the method for generating broadcast program reproduction management information according to the present invention comprises: a first step of recording a received digital broadcast program stream; And a second step of generating reproduction management information for the recorded broadcast program stream by using the electronic program guide information included in the digital broadcast data stream.

Hereinafter, a method for generating broadcast program reproduction management information, a method for automatically generating a reproduction order, and a preferred embodiment of the apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 schematically illustrates an example of a system to which a method for generating broadcast program reproduction management information and a method for automatically generating a playlist may be applied according to the present invention. The system includes a set-top box 100, a communication interface (IEEE 1394), and It consists of a streamer (200).

The set-top box 100 receives and demultiplexes a transport stream multiplexed by a system encoder multiplexed from a broadcasting station, and is tuned by the tuner processor 110 by the controller 140 according to a user's request. The transport stream for the program is decoded by the system decoder 120 and output through an AV set such as a television, or transmitted to the streamer 200 through a communication interface (IEEE 1394) to store the selected transport stream.

In the set-top box 100, the decoder 120 decodes the electronic program guide (EGG) information included in a specific region within a transport stream for the program tuned by the channel selection processing unit 110 and controls the decoder 120. As transferred to 140, the controller 140 stores the electronic program guide information in the program guide area M1 of the memory 150. Here, the program information for all the programs of all the received channels is recorded in the electronic program guide information, and the electronic program guide information is distributed and recorded in the header portion of the transport stream to receive the entire electronic program guide information. Depending on the number of channels being serviced, it will take approximately 1 to 2 hours.

The electronic program guide information includes a transmission channel number, a channel name, a program name, a schedule, program category information of each program, attribute information of a stream constituting each program, and a viewer rating of each program. The program category information (content_nibble_level_1, content_nibble_level_2) is a program / movie, drama, nuus / event, entertainment, sports, youth program, music, culture / art, political / economic, education, etc. It is classified into a number of categories. In addition, as shown in FIG. 2, the stream attribute information (stream_content, component_type) indicates whether the content of the stream constituting each program is a video having an aspect ratio of 4: 3 or an aspect ratio of 16: 9. Video with a pan vector, 16: 9 aspect ratio, video without a pan vector, single mono channel audio, dual mono channel audio, two-channel stereo audio Voice, multi-channel audio or surround audio. In addition, the program rating (parent rating) is to be able to limit the viewing of the adult program of the child or adolescents by displaying the age to view the program in various levels.

In the set-top box 100, the control unit 140 forms a program table having a time axis and a channel axis by using electronic program guide information stored in the electronic program guide area M1 of the memory 150 at the request of a user. Control to display on the screen.

In addition, the set-top box 100 transmits the program tuned at the request of the user to the streamer 200 via the IEEE1394 communication interface 130, 140, and transmits the program by the streamer 200 to the digital video disc (DVD). It can be recorded on the recording medium 230, such as). In addition, the set-top box 100 receives a program read from the recording medium 230 by the streamer 200 according to the user's request via the IEEE1394 communication interface (140,130) to decode the decoder 120 The program can be reproduced by outputting to a television set.

As described above, the set-top box 100 and the streamer 200 need to know management control information of the programs recorded on the recording medium in order to play respective roles in recording and reproducing the programs. Therefore, in the above system, a file for recording program management control information used only by the set-top box 100 (hereinafter, referred to as an "application management information file") and a record program management control information used by the streamer 200 only. The programs recorded on the recording medium are managed by separating them into a file (hereinafter referred to as a "streamer management information file"), and these files are recorded on the recording medium 230 of the streamer 200. It is preferable.

The application management information file is read by the read stream processor 240 of the set-top box 200 at the initial operation of the set-top box 100 and the streamer 200 and transmitted to the set-top box 100 via the IEEE 1394 communication interface. And stored in the management information area M2 of the memory 150 by the control unit 140 of the set-top box 100, and then management information about the newly recorded program at the time of recording the program by the user's request. Is added and updated). In addition, when the recording program is reproduced by the user's request, the controller 140 makes a request for playback to the streamer 200 by using the management information of the application management information file. The application management information file stored in the memory 150 is read at the end of the recording operation or the power-off operation of the set-top box and transmitted to the streamer 200 through a communication interface to control the controller 250 of the streamer 200. Is recorded on the recording medium 230 by the storage stream processor 220 under the control of the "

The streamer management information file is read by the read stream processor 240 of the set-top box 200 at the initial operation of the set-top box 100 and the streamer 200, and is controlled by the controller 250 of the streamer 200. After being stored in the memory 260, management information for a newly recorded program at the time of recording a program by a user request is added and updated by the controller 250. In addition, when the recording program is reproduced by the user's request, the control unit 250 reproduces the program stored in the recording medium 230 by using the management information of the streamer management information file according to the request signal from the set-top box 100. Will be performed. The streamer management information file stored in the memory 260 is read at the end of the recording operation of the streamer 200 or at the time of turning on / off the recording medium, and is recorded by the storage stream processing unit 220 under the control of the controller 250. Is recorded on 230.

Next, the configuration of the application management information file generated by the broadcast program reproduction management information generation method and the reproduction list automatic generation method according to an embodiment of the present invention will be described.

As shown in FIG. 4, an application manager information (AMI), a program stream information table (PSIT), and a user-defined program chain (PGC) information table are illustrated in FIG. 4. (UD_PGCIT; also referred to as " user-defined reproduction order information aggregation table "), GUI information table (GUIIT), and text data manager table (TXT_DT_MGT).

The application manager information (AMI) is an application manager information management table (AMIMT) in which an identification code for identifying application management information, a final address of the application management information, and a final address of the application manager information are recorded as shown in FIG. And a playlist search pointer table PL_SRPT, and the playlist search pointer table PL_SRPT includes playlist search pointer table information PL_SRPTI and a plurality of playlist search pointers # 1 to n (PL_SRP # 1 to n). It consists of.

The playlist search pointer table information PL_SRPTI may be composed of the number of playlist search pointers PL_SRP_Ns and the final address of the playlist search pointer table PL_SRPT as shown in FIG. 5A.

Each of the play list search pointers PL_SRP # i constitutes a play list type (PL_TY) for indicating whether the play list is generated automatically or by user selection, as shown in Fig. 5B. Play list category (PL_CAT) for indicating which category of program shown in FIG. 3 belongs to, and user-defined PGC number for displaying the number of a user-defined PGC (playback order information collection) corresponding to the play list. And a final playback time for displaying the time when the playlist was last played, a creation time for displaying the time when the playlist is generated, and the like.

One embodiment of the play list type PL_TY is composed of a 1-bit play list type flag PL_TY as shown in FIG. 6A, and when a play list is automatically generated, it is set to " 1 " If the list is created manually, it is written to "0". In addition, another embodiment of the play list type PL_TY may include a 1-bit play list type flag PL_TY1 and program category information content_nibble_level_1 and content_nibble_level_2 as shown in FIG. 6B.

As shown in FIG. 7, the user-defined PGC information table (UD_PGCIT) includes a number of user-defined PGC search pointers and a final address of the user-defined PGC information table (UD_PGCIT). User-defined PGC information table information (UD_PGCTI), a number of user-defined PGC search pointers (UD_PGC_SRP # 1 to #n) indicating the start address of the user-defined PGC information, and playback order information of the record collection included in the user-defined PGC. and a plurality of user-defined PGC information (UD_PGCI # 1 to #n) in which (cell information; CIs) are recorded, wherein each of the user-defined PGC information (UD_PGCI # i) is recorded set reproduction order information (CI). User-defined PGC general information (UD_PGC_GI) in which the number of pieces of data, etc. are recorded, and a plurality of recording set reproduction order information (CI # 1 to n).

The program stream information table (PSIT) (also referred to as "program stream reproduction management information") is composed of program stream information table information (PSIGI) and a plurality of program stream information (PSI # 1 to n), as shown in FIG. do.

One embodiment of the program stream information table information PSIGI includes a number of program stream information PSI_Ns and a final address PSI_EA of the program stream information table PSIT, as shown in FIG. 9A.

As shown in FIG. 9B, each program stream information PSI # i includes a service type SV_TY for displaying a service content of a video, audio, text, etc., as shown in FIG. Stream attribute information (ST_CON & CP_TY) for displaying the attribute information (stream_content, component_type) for the stream constituting the program, the program viewing rating information (PRT_RATING) and the program name (PG_NM) can be configured.

Each program stream information PSI # i may further include program category information CON_DISR; content_nibble_level_1 and content_nibble_ level_2. In this case, the playlist search pointer PL_SRP # i shown in FIG. 5B. ), The playlist type PL_TY may be configured as shown in FIG. 6A. On the other hand, when the playlist type PL_TY is configured as shown in FIG. 6B by the playlist search pointer PL_SRP # i shown in FIG. 5B, the program category information CON_DISR is included in the respective program stream information PSI # i. content_nibble_level_1 and content_nibble_ level_2 need not be included.

Meanwhile, in the above-described embodiment of FIG. 5B, the play list type PL_TY, the play list category information PL_CAT, and the play list final play time information PL_Last_PB_TM are recorded in the play list search pointer PL_SRP # i. Does not record the playlist type (PL_TY), the playlist category information (PL_CAT), and the playlist final playback time information (PL_Last_PB_TM) in the playlist search pointer (PL_SRP # i). ORG_PGC_GI).

The streamer management information file applied in the automatic playlist generation method may include an original PGC information table (ORG_PGCIT) as shown in FIG. The original PGC information table (ORG_PGCIT) is the original PGC general information (ORG_PGCITI) in which the final address of the original PGC information table (ORG_PGCIT), etc. are recorded, and the number of recording set reproduction order information (cells), and the like. ORG_PGC_GI) and a plurality of recording set reproduction order information (CI # 1 to n).

Next, in the system configured as described above, when the programs tuned in the set-top box 100 are recorded on the recording medium of the streamer 200, a method for generating broadcast program reproduction management information and a method for automatically generating a reproduction list according to the present invention. An embodiment of the following will be described with reference to FIGS. 11 and 12.

First, the application management information file and the streamer management information file are read by the read stream processor 240 of the set-top box 200 at the initial operation of the set-top box 100 and the streamer 200, The application management information file is transmitted to the set-top box 100 via the IEEE 1394 communication interface, and is stored in the management information area M2 of the memory 150 by the control unit 140 of the set-top box 100, and streamer management information. The file is stored in the memory 260 by the controller 250 of the streamer 200. In addition, in the set-top box 100, the electronic program guide information included in the broadcast program signal is separated by the decoder 120, and the electronic program guide information is stored by the controller 140 in the program guide region ( Stored in M1). Here, as shown in Fig. 11, programs PG # 1 and PG # 2 are recorded on the recording medium 230, and these programs are manually selected by the user and are user-defined PGCs (UD_PGC # 1) which are playlists. ), The playlist search pointer # 1 (PL_SRP # 1) in FIG. 4, the user-defined PGC information # 1 (UD_PGCI # 1) in FIG. 7, and the program stream information # 1 to 2 (PSI) in FIG. It is assumed that data is already recorded in # 1, PSI # 2, and the flag of the play list type PL_TY of the play list search pointer # 1 (PL_SRP # 1) is set to "0".

In the initial operation state as described above, a recording mode for recording a program program on a recording medium 230 by the streamer 200 is tuned to a predetermined program channel by a user request and received through the tuned channel. A setting for a category of each playlist by the user's selection, as well as a mode for automatically generating a playlist for the recorded broadcast programs at the request of the user (step S11). Recording is made (step S13). Here, the category of the playlist may be set by clicking or selecting a desired program category on the setting screen in which a plurality of categories are displayed as shown in FIG. 2 supported by the set-top box, or by inputting by text by a user. The program category is recorded in the program category PL_CAT of the playlist search pointer shown in Fig. 5B. Therefore, contents recorded in the program category PL_CAT of the playlist search pointer can be displayed on the playlist menu displayed on the screen in the playback mode. In the following, three program categories of movie / drama, nuus, and show / entertain are selected by the user, and thus, movie / drama and playback are performed in the program category PL_CAT of playlist search pointer # 2 (PL_SRP # 2) of FIG. 4. It is assumed that a show / entrance is recorded in the program category PL_CAT of the playlist search pointer # 4 (PL_SRP # 4) in the program category PL_CAT of the list search pointer # 3 (PL_SRP # 3). Also, in the following, drama (PG # 3), nuus (PG # 4), movie (PG # 5), show (PG # 6), drama (PG # 7), entertainment (PG # 8), and nuus (PG #) 9) The broadcast program is received and recorded in the order of the show PG # 10.

Thereafter, the controller 140 controls the program to be recorded to be transmitted to the streamer 200 via the IEEE1394 communication interface 130 and 210, and a write control signal to the controller 250 of the streamer 200. The control unit 250 of the streamer 250 recognizes the recording control signal transmitted from the control unit 140 of the set-top box 100, and stores the storage stream processor. The controller 220 controls to record the transferred program on the recording medium 230 (step S15).

Subsequently, the controller 140 checks the program category information (content_nibble_evel_1, content_nibble_level_2) for the program currently recorded in the electronic program guide information stored in the electronic program guide area M1 of the memory 15 (step S17). At this time, the drama PG # 3 is received and recorded.

Thereafter, the controller 140 checks whether a playlist having the same program category information as the checked program category (movie / drama) information already exists (step S19). Here, the playlist for the previously recorded programs PG # 1, PG # 2, the playlist for the movie / drama generated in step S13, the playlist for Newus and the playlist for show / entertainment are It exists.

At this time, the play list in which the play list type PL_TY of the play list search pointer # 1 (PL_SRP # 1) is set to "0" is manually selected and ignored, and other play list search pointers # 2 to 4 (PL_SRP # 2) are ignored. The program category PL_CAT of ˜4) is checked, and the playlist search pointer # 2 (PL_SRP # 2) for the movie / drama playlist having the same category as the drama program PG # 3 is retrieved.

Subsequently, the controller 140 generates a user-defined PGC (UD_PGC # 2 in FIG. 11) corresponding to the retrieved playlist search pointer # 2 (PL_SRP # 2) and uses the currently recorded program PG # 3. It includes in positive PGC (UD_PGC # 2) (step S21).

Thereafter, the control unit 140 automatically generates a playlist in the application management information file, so that the playlist type (PL_TY) of " 1 ", the program category of the identified playlist, the corresponding user-defined PGC number, and the playlist generation are generated. The time PL_CREATE_TM is recorded in the reproduction list search pointer # 2 (PL_SRP # 2; see FIG. 5B) (step S23).

In addition, the controller 140 increases the number of program stream information PSI_Ns (see FIG. 9A) of the program stream information table information PSIGI by “1” and uses the electronic program guide information to provide a service type for a program currently recorded. (SV_TY), stream attributes (ST_CON & CP_TY), program category (CON_DISR), program viewing grade (PRT_RATING), and program name (PG_NM) are recorded in program stream information # 3 (PSI # 3; see FIG. 8) (step) S25).

In addition, the control unit 250 of the streamer 200 generates management information about the recorded program and records the stream in the streamer management information file stored in the memory 260. The management information is the original as shown in FIG. Contains the PGC information table.

Subsequently, the control unit 140 of the set-top box 100 checks whether the recording mode is terminated by the user's request (step S27), and when the recording mode is terminated, the control unit 140 records in the management information area M2 of the memory 150. Reads the application management information file, and transmits to the streamer 200 via the IEEE 1394 communication interface (130, 210), and writes a recording end control signal to the control unit 250 of the streamer 200 to the IEEE 1394 communication interface ( 130 and 210, and the controller 250 of the streamer 250 recognizes the recording end control signal transmitted from the controller 140 of the set-top box 100 and controls the storage stream processor 220. Recording the transmitted application management information file on the recording medium 230, and the control unit 250 of the streamer 250 reads the streamer management information file stored in the memory 260 and stores the stream. wife The recording medium 230 is recorded on the recording medium 230 through the retrieving unit 220 (step S29), and the recording mode ends.

On the other hand, if it is determined in step S27 that there is no request for the end of the recording mode, the control unit 140 of the set-top box 100 checks whether a new program is input (step S31), and as a new program, PG which is a new program in FIG. When # 4 is input, the control unit 140 of the set-top box 100 performs the program category information (content_nibble_level_1, content_nibble_level_2) for the program currently input from the electronic program guide information stored in the memory 15. Check it.

Thereafter, the controller 140 checks whether a play list having the same program category information as the category (news) information of the checked program PG # 4 already exists (step S19). Here, the program category (PL_CAT) of the playlist search pointers # 1 to 4 (PL_SRP # 1 to 4) is checked, and the playlist search pointer # 3 for the newus playlist having the same category as that of the PG # 4, which is the mouse program. PL_SRP # 3).

Subsequently, the controller 140 generates a user-defined PGC (UD_PGC # 3 in FIG. 11) corresponding to the retrieved playlist search pointer # 3 (PL_SRP # 3) and uses the currently recorded program PG # 4. It includes in positive PGC (UD_PGC # 3) (step S21).

Thereafter, the control unit 140 automatically generates a playlist in the application management information file, so that the playlist type (PL_TY) of " 1 ", the program category of the identified playlist, the corresponding user-defined PGC number, and the playlist generation are generated. The time PL_CREATE_TM is recorded in the reproduction list search pointer # 3 (PL_SRP # 3; see FIG. 5B) (step S23).

In addition, the controller 140 increases the number of program stream information PSI_Ns (see FIG. 9A) of the program stream information table information PSIGI by “1” and uses the electronic program guide information to provide a service type for a program currently recorded. (SV_TY), stream attributes ST_CON & CP_TY, program category CON_DISR, program viewing class PRT_RATING, and program name PG_NM are recorded in program stream information # 4 (PSI # 4; see FIG. 8) (step) S25).

Subsequently, the control unit 140 of the set-top box 100 checks whether the recording mode is terminated by the user's request (step S27), and when it is determined that there is no request for ending the recording mode, the control unit 140 of the set-top box 100 is performed. Check whether a new program is input (step S31). If a movie program PG # 5 is input in FIG. 11 as a new program, the process proceeds to step S17 described above, and the control unit 140 of the set-top box 100 stores the memory. The program category information (content_nibble_level_1 and content_nibble_level_2) of the currently input program is checked from the electronic program guide information stored in (15).

Thereafter, the controller 140 checks whether a play list already having the same program category information as the category (movie) information of the checked program PG # 5 already exists (step S19). Here, the program search list PL_CAT of the play list search pointers # 1 to 4 (PL_SRP # 1 to 4) is checked, and the play list search pointer # for a movie / drama playlist having the same category as that of the movie program PG # 5. Retrieve 2 (PL_SRP # 2).

Subsequently, the controller 140 includes a program PG # 5 currently being recorded in a user-defined PGC (UD_PGC # 2 in FIG. 11) corresponding to the retrieved playlist search pointer # 2 (PL_SRP # 2) ( Step S21).

Thereafter, the controller 140 increases the number of program stream information PSI_Ns (see FIG. 9A) of the program stream information table information PSIGI by “1”, and uses the electronic program guide information to provide a service type for a program currently recorded. (SV_TY), stream attributes (ST_CON & CP_TY), program category (CON_DISR), program viewing grade (PRT_RATING), and program name (PG_NM) are recorded in program stream information # 5 (PSI # 5; see FIG. 8) (step) S25).

By the method as described above, the reproduction list is automatically constructed as the remaining programs PG # 6 to 10 are recorded.

On the other hand, in the automatic playlist generation method according to the present invention described with reference to FIG. 12, a case in which the playlist type PL_TY is configured as shown in FIG. 6B by the playlist search pointer PL_SRP # i is described. On the other hand, when the playlist type PL_TY is configured as shown in Fig. 6A, the program category information CON_DISR (content_nibble_level_1 and content_nibble_ level_2) must be recorded in the program stream information PSI # i as shown in Fig. 9B. In order to automatically create a playlist, the program category of the playlist should be selected by the user and set to movie / drama, nuus / event, show / entertainment, sports, etc. and recorded in the playlist category (PL_CAT) of FIG. 5B. .

In addition, in the automatic playlist generation method according to the present invention described with reference to FIG. 12, the playlist list pointer PL_TY, playlist category information PL_CAT, and playlist final playback time information PL_Last_PB_TM are stored in a playlist search pointer ( Although recorded in PL_SRP # i, the playlist type (PL_TY), playlist category information (PL_CAT), and playlist final playback time information (PL_Last_PB_TM) are not recorded in the playlist search pointer (PL_SRP # i) and are shown in FIG. Similar results can be obtained by recording in one user-defined PGC general information (ORG_PGC_GI).

When the play mode is set by the user request in the state of recording the play list as described above, the control unit 140 controls to display the four play lists on the screen by using the recorded play list information. When the user clicks on the movie / drama playlist (UD_PGC # 2 in FIG. 11) among the playlists displayed on the screen, the drama program PG # 3, the movie program PG # 5, and the drama program PG in FIG. Program play is done in order of # 7.

In addition, this invention is not limited to the system demonstrated with reference to FIG. The apparatus for performing the same function as the set-top box and the apparatus for performing the same function as the streamer are installed in one set, and digital broadcasting programs are also provided in a system configured to communicate with each other via an internal bus. When receiving and storing the present invention can be applied.

In addition, in the specific embodiment described with reference to FIG. 12, the user selects a program category for an automatically generated playlist, and automatically generates a playlist only for programs belonging to the category, but the present invention is limited thereto. Rather than selecting a program category for an automatically generated playlist, the playlist is grouped by all the recorded program categories (i.e., content_nibble_level_1 in the example of FIG. 3) without the user selecting a program category. You can also automatically generate the. In this case, if there is a playlist having the same category as that of the recorded broadcast program, it is enough to generate the playlist information by adding the recorded broadcast program to the playlist, and the same category as that of the recorded broadcast program. If there is no play list with the < Desc / Clms Page number 5 >, a new play list is generated and the play list information is generated by adding the recorded broadcast program to the generated play list.

According to the automatic reproduction list generating method and apparatus according to the present invention as described above, the electronic program guide information included in the digital broadcasting data stream stored when the digital broadcasting data stream is received and stored on the recording medium by the streamer. By checking the category of the program to be stored using, and grouping the programs according to the program category, it is possible to automatically generate a play list that is the playback order information. In addition, according to the method for generating broadcast program reproduction management information according to the present invention, when storing a broadcast program on a recording medium, information on attributes of each broadcast program using electronic program guide information included in a digital broadcast data stream It will be able to automatically generate management information to manage the.

Claims (14)

A first step of recording a received digital broadcast program; And And generating a playlist by grouping the recorded broadcast programs according to a category of a broadcast program. The method of claim 1, And selecting and inputting a category of broadcast programs to be grouped. And the second step generates only a playlist corresponding to the selected category with respect to the recorded broadcast program. The method of claim 1, The second step, A first substep of identifying a category of the recorded broadcast program; And And a second sub-step of additionally generating the reproduction information of the broadcast program of which the category is identified to the playlist of the corresponding category. The method of claim 3, And the first sub-step is to identify a category of the recorded broadcast program using program guide information received with the digital broadcast program. The method of claim 1, And the information on the playlist includes the grouped broadcast program category information and a number of a user-defined reproduction order information aggregate corresponding to the playlist. The method of claim 5, The information on the play list, automatic play list generation method characterized in that it further comprises generation identification information for identifying whether the automatic or manual generation of the play list. The method of claim 6, And the broadcast program category information, the number of the user-defined recording set reproduction order information, and the auto-generated identification information are recorded in a user-defined reproduction order information collection table area. The method of claim 5, The grouped program category information is recorded using program guide information received with the broadcast program. The method of claim 5, The grouped program category information is recorded by a user input. Recording means for recording the received digital broadcast program; Detecting means for detecting a category of the recorded broadcast program; And And control means for recording the reproduction information of the recorded broadcast program in a reproduction list corresponding to the detected category. The method of claim 10, And the control means generates a play list corresponding to the detected category and records the play information by generating the play list corresponding to the detected category. A first step of recording a received digital broadcast program stream; And And generating a reproduction management information for the recorded broadcast program stream by using the program guide information included in the digital broadcasting data stream. The method of claim 12, The management information includes a service type and audio / video property of the recorded broadcast program stream. The method of claim 13, And the management information includes a viewing grade and a category of the recorded broadcast program stream.