KR100582500B1 - Automatic Playlist Creation Method and Apparatus According to Program Rating - Google Patents

Abstract

When the digital broadcasting program is received and stored in a recording medium such as a digital video disk, the present invention is provided in a program viewing class which automatically generates a play list which is playback order information by grouping the programs according to the viewing grades of the stored digital broadcasting programs. The present invention relates to a method for automatically generating a playlist, and the present invention relates to an electronic program guide information included in a digital broadcast data stream for checking a rating for each broadcast program, and to select a program according to the identified viewing rating. Groups automatically generate playlists, which are playback order information, or when the user sets a rating, checks the ratings for each broadcast program, and the playlist only when the checked ratings of the programs are below the set ratings. Sleeping By generate, so that the user of the recorded program can be played by selecting only those programs tailored to their age.

Description

Automatic Playlist Creation Method and Apparatus According to Program Rating

When the digital broadcasting program is received and stored in a recording medium such as a digital video disc, the stored program is grouped according to the viewing grade of the digital broadcasting program using the electronic program guide information included in the received digital broadcasting program. The present invention relates to a method for automatically generating a play list according to a program viewing grade and an apparatus for automatically generating a play list which is play order information.

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 by a set top box installed on the receiving side, and is included in the transport stream. Program is demultiplexed so that only one desired program is selected, and the selected program is decoded by a decoder built into the set-top box to deliver the original audio and video signal to an A / V output device such as a television. .

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) recording and reproducing apparatus through a communication interface such as an IEEE-1394 serial bus, the stored digital data stream is edited and reproduced for the communication. Research into a system capable of reproducing digital audio and video through an AV output device such as a television by transmitting an interface to a set-top box is ongoing.

In digital multi-channel broadcasting, dozens or hundreds of channels are provided as a program, which allows viewers to select and watch various programs, while in each family, new social problems are made as children and teenagers easily select and watch adult programs. There is a risk of rising.

Therefore, even in the above system, there is a demand for a method of allowing a user to select and play only a program suitable for his age among the stored broadcast programs in a state of sequentially storing the received broadcast programs.

Accordingly, the present invention was created in view of the above circumstances, and when receiving a digital broadcasting program and storing the same on a recording medium, the received program is automatically generated by grouping the received programs according to the viewing grade of the program. An object of the present invention is to provide a method and apparatus for automatically generating a playback order according to a program viewing grade to be generated.

In addition, the present invention is a method and apparatus for automatically generating a playback order according to a program viewing grade, which is capable of automatically generating a playlist only for programs below a predetermined viewing grade when a digital broadcasting program is received and stored on a recording medium. The other purpose is to provide.

In order to achieve the above object, a method of automatically generating a playlist according to a program viewing grade of the present invention includes: a first step of recording a received digital broadcast program; And a second step of generating a play list by grouping the recorded broadcast programs according to the viewing grades of the broadcast programs.

In addition, the automatic playlist generation apparatus according to the program viewing grade of the present invention, recording means for recording the received digital broadcast program; Detecting means for detecting a rating 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 audience rating.

In the present invention made and configured as described above, when recording the received broadcast program, the rating of the recorded broadcast program is checked using the electronic program guide information included in the broadcast data stream, and the confirmed program Group the recorded programs according to the audience ratings to automatically generate a playlist that is playback order information, or when the user sets the audience ratings, check the audience ratings for each of the recorded broadcast programs. The playlist is automatically generated only when the viewing grade is less than or equal to the set viewing grade.

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

FIG. 1 schematically illustrates an example of a system to which a method for automatically generating a playlist according to a program rating of the present invention may be applied. The system includes a set-top box 100, a communication interface (IEEE 1394), and a streamer. And 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 is classified into a number of categories such as movies / dramas, nuus / events, entertainment, sports, and the like. The stream attribute information indicates an attribute of audio / video (for example, aspect ratio of video, mono audio, stereo audio, surround audio, etc.) of the stream constituting each program.

In addition, the program rating (parent rating) is to be able to limit the viewing of the adult program for children or adolescents by classifying and displaying the age for viewing the program. An example of the rating is represented by 15 steps of 0x01 to 0x0F, and there is a method of converting a value obtained by adding 3 to the rating as an age for viewing.

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 file for recording program management control information used only by the streamer 200 ( It is preferable that the programs recorded on the recording medium are managed by separating them into " streamer management information file ", etc., and these files are recorded on the recording medium 230 of the streamer 200. .

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, a configuration of an application management information file generated by an embodiment of a method for automatically generating a playlist according to a program viewing grade and an apparatus thereof according to 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. 3A.

Each of the playlist search pointers PL_SRP # i constitutes a playlist type PL_TY for indicating whether the corresponding playlist is generated automatically or by user selection, as shown in FIG. 3B. Playlist (PL_RATING) to display the rating of the program to be played, the user-defined PGC number to display the number of the custom PGC (playback order information collection) corresponding to the playlist, and the playlist to be played last. And a final playback time for displaying a time, a creation time for displaying a reproduced time when the corresponding playlist is generated, and the like. Here, the playlist rating rating PL_RATING may be input and recorded by the user, or may be a preset rating rating (eg, a set top box) that divides all program ratings into predetermined bands (for example, a set-top box). , Children's viewing grades, youth viewing grades, and adult viewing grades) may be automatically generated and recorded as the playlist viewing grades PL_RATING. The play list type PL_TY is composed of a 1-bit play list type flag PL_TY, which is set and recorded as "1" when a play list is automatically generated, and "0" when a play list is generated manually. Setting is recorded.

As shown in FIG. 4, 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).

As shown in Fig. 5, the program stream information table PSIT is composed of program stream information table information PSIGI and a plurality of program stream information PSI # 1 to n.

One embodiment of the program stream information table information PSIGI includes the number of program stream information PSI_Ns and the final address PSI_EA of the program stream information table PSIT, as shown in FIG. 6A.

As shown in FIG. 6B, 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. 6B, and as shown in FIG. Stream attribute information (ST_CON & CP_TY), program category information (CON_DISR), program viewing grade information (PRT_RATING), and program name (PG_NM) for displaying audio / video properties of the stream constituting the program. Can be.

Meanwhile, in the above-described embodiment of FIG. 3B, the play list type PL_TY, the play list viewing grade PL_RATING, 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), playlist rating (PL_RATING), and playlist final playback time information (PL_Last_PB_TM) in the playlist search pointer (PL_SRP # i), but the user-defined PGC general information shown in FIG. ORG_PGC_GI).

The streamer management information file used in the automatic playlist generation method according to the program viewing grade according to the present invention 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). ORG_PGC_GI) and a plurality of recording set reproduction order information (CI # 1 to n).

Next, when recording the programs tuned in the set-top box 100 on the recording medium of the streamer 200 in the system configured as described above, an embodiment of the automatic playlist generation method according to the program viewing grade of the present invention This will be described with reference to FIGS. 8 and 9.

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, 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) of FIG. 2, the user defined PGC information # 1 (UD_PGCI # 1) of FIG. 4, and the program stream information # 1 to 2 (PSI) of FIG. It is assumed that data is already recorded in # 1 and PSI # 2, and the flag of the playlist type PL_TY of the playlist 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 the program rating of each playlist by the user's selection input, together with the setting of a mode for automatically generating a playlist for the recorded broadcast programs at the request of the user (step S11). Recording is made, or the ratings preset by the set are automatically set and recorded as the program ratings of each playlist (step S13). Here, the rating for the rating of the playlist can be set by inputting the desired program viewing ratings by the number corresponding to the age on the rating rating setting screen displayed on the set-top box, wherein the set ratings are shown in FIG. Recorded in the playlist viewing rating PL_RATING of the playlist search pointer.

In the following description, as "20", "10", and "16" are selected as playlist viewing ratings by the user or a set, the playlist viewing ratings of the playlist search pointer # 2 (PL_SRP # 2) of FIG. PL_RATING, "20", playlist navigation pointer # 3 (PL_SRP # 3) playlist rating (PL_RATING), "10", playlist navigation pointer # 4 (PL_SRP # 4) playlist rating (PL_RATING) It is assumed that " 16 " In addition, as shown in FIG. 8 below, a program (PG # 3) having a program rating of "0x06", a program (PG # 4) having a program rating of "0x0F", and a program having a rating of "0x0B" as shown in FIG. It is assumed that broadcast programs are received and recorded in the order of (PG # 5).

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 viewing grade 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 program PG # 3 whose program rating is "0x06" is received and recorded.

Thereafter, the controller 140 checks whether there is a playlist having a playlist rating set to a value greater than "9" which adds 3 to the identified program rating ("0x06"). Here, there are playlists for the previously recorded programs PG # 1 and PG # 2, and playlists whose viewing grades generated in step S13 are "20", "10", and "16", respectively. . At this time, the playlist whose playlist type PL_TY of playlist search pointer # 1 (PL_SRP # 1) is set to "0" is manually selected and ignored, and other playlist search pointers # 2 to 4 (PL_SRP # 2) are ignored. The playlist viewing ratings PL_RATING of ˜4) are checked, and playlist search pointers # 2 to 4 (PL_SRP # 2 to 4) for playlists having a viewing rating set to a value larger than the converted “9” are obtained. Find out.

Subsequently, the controller 140 generates user-defined PGCs (UD_PGC # 2-4 in FIG. 8) corresponding to the retrieved playlist search pointers # 2-4 (PL_SRP # 2-4), respectively, and are currently being recorded. (PG # 3) is included in the user-defined PGCs (UD_PGC # 2 to 4), respectively (step S19).

Thereafter, the controller 140 automatically searches the playlist for the playlist type (PL_TY), the corresponding user-defined PGC number, and the playlist creation time (PL_CREATE_TM) of "1" because the playlist is automatically generated in the application management information file. It writes to pointers # 2-4 (PL_SRP # 2-4; see FIG. 5B) (step S21).

In addition, the controller 140 increases the number of program stream information PSI_Ns (see FIG. 6A) 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 FIGS. 5 and 6B). (Step S23).

In addition, the controller 250 of the streamer 200 generates management information about the recorded program and records the management information in the streamer management information file stored in the memory 260. The management information is 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 S25), and when the recording mode is terminated, the controller 140 records the data 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 writes to the recording medium 230 through the retrieving unit 220 (step S27), 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 S29), and as a new program, the program rating is shown in FIG. When the program PG # 4 having "0x0F" is input, the controller 140 of the set-top box 100 performs a write control operation of the received program PG # 4.

Thereafter, the controller 140 checks the program viewing grade for the program currently being recorded in the electronic program guide information stored in the electronic program guide area M1 of the memory 15 (step S17).

Subsequently, the controller 140 checks whether there is a playlist having a playlist rating set to a value greater than "18" by adding 3 to the checked program rating ("0x0F"). At this time, the controller 140 checks the playlist viewing ratings PL_RATING of playlist search pointers # 2 to 4 (PL_SRP # 2 to 4), and has a viewing rating set to a value greater than the converted " 18 ". The playlist search pointer # 2 (PL_SRP # 2) for the playlist is retrieved. Thereafter, the controller 140 includes a program PG # 4 currently recorded in a user-defined PGC (UD_PGC # 2 in FIG. 8) corresponding to the retrieved playlist search pointer # 2 (PL_SRP # 2). (Step S19).

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 program stream information # 4 (PSI #). 4, the playback management information as shown in FIG. 6B is recorded (step S23).

Subsequently, the control unit 140 of the set-top box 100 checks whether the recording mode is terminated by the user's request (step S25), and if not, the control unit 140 of the set-top box 100 receives a new program. (Step S29), when a program PG # 5 having a program rating of " 0x0B " is input in FIG. 8 as a new program, the control unit 140 of the set-top box 100 proceeds to step S15. The write control operation of the received program PG # 5 is performed (step S15).

Subsequently, the controller 140 checks whether there is a playlist having a playlist rating set to a value greater than "14" in which 3 is added to the checked program rating ("0x0B"). At this time, the controller 140 checks the playlist viewing ratings PL_RATING of playlist search pointers # 2 to 4 (PL_SRP # 2 to 4), and has a rating set to a value larger than the converted "14". The playlist search pointers # 2 and # 4 (PL_SRP # 2, # 4) for the playlist are retrieved. Thereafter, the control unit 140 currently records the programs currently recorded in the user-defined PGCs (UD_PGC # 2 and # 4 of FIG. 8) corresponding to the retrieved playlist search pointers # 2 and # 4 (PL_SRP # 2 and 4). (PG # 5) is included (step S19).

Thereafter, the controller 140 increases the program stream information number PSI_Ns (see FIG. 9A) of the program stream information table information PSIGI by " 1 ", and uses the electronic program guide information to generate program stream information # 5 (PSI #). 5; playback management information as shown in FIG. 6B is recorded in FIG. 5 (step S23).

As described above, it is possible to automatically generate, add, and record a playlist for each broadcasting grade of a program to the broadcast program that is received and recorded until the play mode ends.

Next, as another embodiment of a method for automatically generating a playlist according to a program rating of the present invention, a method of generating a playlist only for programs having a rating lower than a rating set by a user will be described with reference to FIGS. It demonstrates with reference to FIG.

First, the program recording mode is set through the same process as in step S11 of FIG. 9 (step S41), and then with the setting of the mode for automatically generating a playlist for the recorded broadcast programs at the request of the user, At the request of the user, the setting record of the program grade in which the playlist is automatically generated is made (step S43). Here, the ratings of the desired program can be set by inputting a number corresponding to the desired program ratings in the audience rating setting screen displayed on the set-top box, and the set ratings are the playlist ratings of the playlist navigation pointer shown in FIG. 3B. Is written to (PL_RATING).

Hereinafter, it is assumed that "17" is recorded in the playlist viewing rating PL_RATING of the playlist search pointer # 2 (PL_SRP # 2) of FIG. 2 as "17" is selected and input by the user. do. In addition, as shown in FIG. 10 below, a program PG # 3 having a program viewing grade "0x0E", a program PG # 4 having a program viewing grade "0x0F", a program having a program viewing grade "0x0F" ( It is assumed that broadcast programs are received and recorded in the order of PG # 5).

Thereafter, the control unit 140 controls the recording request program to be recorded on the recording medium 230 as in step S15 of FIG. 9 (step S45).

Subsequently, the controller 140 checks the program viewing grade for the program currently being recorded in the electronic program guide information stored in the electronic program guide area M1 of the memory 15 (step S47). At this time, the program PG # 3 whose program rating is "0x0E" is received and recorded.

Thereafter, the controller 140 checks whether " 17 " which is equal to 3 added to the checked program viewing grade ("0x0E") is less than or equal to the playlist viewing grade ("17") set in step S43 (step S49). ), Since the checked audience rating is less than or equal to the set audience rating, the controller 140 may define a user-defined PGC (UD_PGC # in FIG. 10) corresponding to playlist search pointer # 2 (PL_SRP # 2) for the set playlist. 2) and the program PG # 3 currently recorded is included in the user-defined PGC (UD_PGC # 2) (step S51).

Then, the control unit 140 searches for each playlist in the application management information file because the playlist is automatically generated, so that the playlist type (PL_TY) of "1", the corresponding user-defined PGC number, and the playlist creation time (PL_CREATE_TM) are searched for. It writes to pointer # 2 (PL_SRP # 2; see FIG. 5B) (step S53).

In addition, the controller 140 increases the number of program stream information PSI_Ns (see FIG. 6A) 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 FIGS. 5 and 6B). (Step S55).

Subsequently, the control unit 140 of the set-top box 100 checks whether the recording mode is terminated by the user's request (step S57), and when the recording mode ends, performs the same control as in step S27 of FIG. The program management information file is stored on the recording medium (step S59), and the recording mode ends.

On the other hand, if it is determined in step S57 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 S61), and as a new program, the program rating is shown in FIG. When the program PG # 4 having "0x0F" is input, the controller 140 of the set-top box 100 performs a write control operation of the received program PG # 4.

Thereafter, the controller 140 checks the program viewing grade for the program currently recorded in the electronic program guide information stored in the electronic program guide area M1 of the memory 15 (step S47).

Subsequently, the control unit 140 checks whether " 18 " which is equal to 3 added to the checked program viewing grade ("0x0F") is less than or equal to the playlist viewing grade ("17") set in step S43 (step S49). ), Since the checked viewer rating is greater than the set viewer rating, the controller 140 may program PG # 4 currently being recorded in playlist search pointer # 2 (PL_SRP # 2) for the set playlist. ), And directly proceeds to step S55 described above to increase the number of program stream information PSI_Ns (see FIG. 6A) of the program stream information table information PSIGI by "1", and to record the current using the electronic program guide information. The reproduction management information for the program to be recorded is recorded in the program stream information # 4 (PSI # 4; see Figs. 5 and 6B) (step S55).

As described above, only a program having a lower rating than the playlist viewing rating set for the broadcast program received and recorded until the playback mode is terminated can automatically generate and add a playlist.

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 the digital broadcasting program is also provided in the system configured to communicate with each other through an internal interface. When receiving and storing the present invention can be applied.

In addition, in the above specific embodiments, only some of the program ratings are selectively classified, and the playlist is automatically generated by the divided ratings. However, the present invention provides an electronic program received with a broadcast program. It is also possible to automatically generate a playlist separately for all the ratings defined by the rating information included in the guide information.

According to the method and apparatus for automatically generating a playlist according to the program viewing grade according to the present invention as described above, when receiving a digital broadcasting program and storing the same on a recording medium such as a digital video disc, the viewing grade of the digital broadcasting program is stored. By grouping the programs to automatically generate a play list, which is play order information, the user can select and play only programs suitable for his age among the recorded broadcast programs. In addition, if a function of the system is added to only the person who has the authority to play the play list for each play list for the automatically generated play list for each program viewing grade, children or teenagers can use the adult broadcast program stored in the streamer. You can also disable playback.

1 schematically illustrates a system to which a method for automatically generating a playlist according to a program rating according to the present invention may be applied.

2 is a diagram illustrating an exemplary embodiment of an application management information file table for managing a playlist generated by the apparatus and a playlist generated by the apparatus according to a program viewing grade according to the present invention.

FIG. 3A illustrates an example of a data format for the playlist search pointer table information shown in FIG. 2;

FIG. 3B shows an example of a data format for the playlist search pointer shown in FIG.

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

FIG. 5 shows the configuration of the program information table information shown in FIG.

FIG. 6A illustrates an embodiment of a data format for the program stream information table of FIG. 5;

FIG. 6B illustrates an embodiment of a data format for the program stream information of FIG. 5;

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

8 is a diagram schematically illustrating a process of generating an original program chain and a user-defined program chain when a video is recorded on a recording medium by a streamer according to an embodiment of the present invention.

9 is a flowchart illustrating an embodiment of a method for automatically generating a playlist according to a program rating of the present invention.

10 is a diagram schematically illustrating a process of generating an original program chain and a user-defined program chain when a moving picture is recorded on a recording medium by a streamer according to another embodiment of the present invention.

11 is a flowchart illustrating an embodiment of a method for automatically generating a playlist according to a program rating of 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

Claims (3)

A first step of recording a received digital broadcast program; And After checking the audience rating information of the broadcast program by using the electronic program guide information received with the recorded broadcast program, And a second step of additionally recording the playlist rating information corresponding to the playlist rating pointer in the playlist search pointer. The method of claim 1, The playlist rating pointer includes a playlist rating information corresponding to the rating information of the broadcast program, and a number of a user defined playback order information aggregate corresponding to the playlist. How to automatically create a playlist according to. Recording means for recording the received digital broadcast program; Detecting means for detecting audience rating information of the broadcast program using electronic program guide information received together with the recorded broadcast program; And And control means for additionally recording playlist rating information corresponding to the rating information of the detected broadcast program in a playlist search pointer.