JP2008199578A - Program recording device - Google Patents

Abstract

A program recording apparatus for automatically selecting a recording method desired by a user and recording a program is provided.
A program recording apparatus records a program transmitted by a transport stream. The program recording apparatus includes an information acquisition unit that acquires genre information of a program from each TS packet of a transmitted transport stream, a conversion unit that converts a transport stream into data of a predetermined format, a transport stream, or the predetermined stream A recording unit that records data in the format, a control unit that controls at least one of the information acquisition unit, the conversion unit, and the recording unit, and profile data in which a recording method for each genre is set A storage unit. When the genre information of the program acquired by the information acquisition unit is set in the profile data, the control unit controls at least one of the information acquisition unit, the conversion unit, and the recording unit based on the profile data.
[Selection] Figure 1

Description

  The present invention relates to a program recording apparatus for automatically selecting a recording method desired by a user and recording a program.

  An apparatus for recording a television program (hereinafter simply referred to as “program”) transmitted by MPEG-TS (MPEG Transport Stream) on a recording medium records the program by a predetermined recording method without converting MPEG-TS. Alternatively, the program is recorded for each program by a recording method set in advance by the user. When a user who uses the apparatus wants to record a program using a recording method other than a predetermined recording method, he / she must set a desired recording method for each program. However, the operation of setting the recording method for each program is a burden on the user.

  In the invention disclosed in Japanese Patent Application Laid-Open No. 2000-13759, the information transmitting apparatus includes “Information that is valid only during viewing”, “SI (Service Information)” including program information defined by the digital broadcasting standard, One of the program information is described as “information valid only during recording / playback” and “information valid during viewing / recording / playback”, and the information receiving apparatus classifies and processes the program information included in the SI. Do.

JP 2000-13759 A

  However, neither the above apparatus nor the invention disclosed in Japanese Patent Application Laid-Open No. 2000-13759 can automatically record a program in a recording method desired by the user according to the program content. When a user wants to record a program with a recording method other than a predetermined recording method, the user must set a desired recording method for each program.

  An object of the present invention is to provide a program recording apparatus for automatically selecting a recording method desired by a user and recording a program.

  The present invention is a program recording apparatus for recording a program transmitted in a transport stream, wherein the information acquisition unit acquires program genre information from each TS packet of the transmitted transport stream, and the transport stream includes At least one of a conversion unit that converts data into a predetermined format, a recording unit that records the transport stream or the data of the predetermined format on a recording medium, the information acquisition unit, the conversion unit, and the recording unit And a storage unit that stores profile data in which a recording method for each genre is set. The control unit includes the genre information of the program acquired by the information acquisition unit in the profile data. If set, the information acquisition unit, the conversion unit, and the recording unit based on the profile data It provides program recording device for controlling at least any one.

  In the program recording apparatus, at least one of the recording mode indicated by the bit rate and the type of the recording medium is set as the recording method for each genre set in the profile data.

  In the program recording apparatus, the conversion unit converts the bit rate of the transport stream.

  In the program recording apparatus, the conversion unit converts the transport stream into a program stream.

  In the program recording apparatus, the information acquisition unit determines the type of the elementary stream from the identifier attached to the TS packet of the elementary stream constituting the transport stream, and outputs the necessary elementary stream. The type of elementary stream to be selected is set in the recording method for each genre set in the profile data.

  In the program recording apparatus, the recording unit does not record on the recording medium when a genre that is set in the profile data and is not to be recorded is recorded.

  In the program recording apparatus, when the transport stream includes a multi-channel, the recording unit selects only a genre program that matches the profile data and records the selected program on the recording medium.

  According to the program recording apparatus of the present invention, a program can be recorded by automatically selecting a recording method desired by the user.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. A program recording apparatus according to an embodiment described below records a television program (hereinafter simply referred to as “program”) transmitted by MPEG-TS (MPEG Transport Stream) on a recording medium.

(First embodiment)
FIG. 1 is a block diagram showing a program recording apparatus according to the first embodiment. As shown in FIG. 1, the program recording apparatus of the first embodiment includes a tuner unit 101, a transport decoder unit 103, an MPEG-TS conversion unit 105, a stream control unit 107, a recording medium 109, and a storage. A unit 111 and a CPU 113 are provided.

  The tuner unit 101 receives MPEG-TS (MPEG Transport Stream) transmitted from a broadcasting station or the like. MPEG-TS is a TS packet sequence in which data such as video, audio, and text is subdivided. A packet header that serves as a tag for each TS packet is attached to the TS packet. The packet header includes a packet identifier (PID) indicating the type of the TS packet. Each data stream such as video and audio is transmitted in TS packets having a unique PID. Therefore, even if a plurality of types of TS packets are mixed in one MPEG-TS, the type of each TS packet can be identified.

  Note that MPEG-TS is designed assuming transmission via a transmission path in which an error may occur. On the other hand, MPEG-PS (MPEG Program Stream) is designed on the assumption that it is handled in an environment where there is a low possibility of an error such as data reading / writing between recording media. In digital broadcasting, MPEG-TS is used because a poor transmission environment must be taken into consideration.

  The transport decoder unit 103 acquires SI (Service Information) including program information and the like from each TS packet of MPEG-TS. The MPEG-TS converter 105 converts the MPEG-TS received by the tuner unit 101 into a format instructed by the CPU 113. The MPEG-TS converter 105 converts MPEG-TS into, for example, MPEG-PS. The stream control unit 107 records the data whose format has been converted by the MPEG-TS conversion unit 105 on the recording medium 109. The recording medium 109 is a hard disk (HDD), DVD, memory card, or the like.

  The storage unit 111 stores profile data preset by the user. Details of the profile data will be described later. Note that the storage unit 111 can be rewritten, and the user can edit the profile data. The CPU 113 controls the transport decoder unit 103, the MPEG-TS conversion unit 105 and the stream control unit 107. In addition, the CPU 113 transmits in MPEG-TS based on the program genre information indicated by the EIT (Event Information Table) included in the SI acquired by the transport decoder unit 103 and the profile data stored in the storage unit 111. The recording mode of the recorded program and the recording medium of the recording destination are determined.

  FIG. 2 is a diagram showing a storage structure of profile data used in the first embodiment. In the profile data shown in FIG. 2, a recording mode (bit rate) and a recording medium are specified for each genre. In the example shown in FIG. 2, for the news program, the recording mode is designated as SP mode (5 Mbps) and the recording medium 109 is designated as a memory card. In the animation program, the recording mode is designated as LP mode (3 Mbps) and the recording medium 109 is designated as DVD. For movie programs, the recording mode is designated as XP mode (10 Mbps), and the recording medium 109 is designated as a hard disk (HDD).

  The genre of the program may be classified into categories such as a large classification and a medium classification according to the contents of the program. A broad genre such as “News”, “Anime”, or “Movie” is set as the major category, and if the major category is “Movie”, for example, “Western” or “Japanese” is one of the major categories. Further classify genres. In digital terrestrial television broadcasting, SI includes 4-bit information indicating a major classification and 4-bit information indicating a middle classification. For this reason, the genre of a program is classified into 16 types of major classifications and 16 types of medium classifications, and may be classified into 16 × 16 = 256 types (including undefined classifications). The profile data shown in FIG. 2 does not correspond to the stepwise classification, but may correspond to the stepwise classification such as the above-described large classification and medium classification.

  When the profile data shown in FIG. 2 is stored in the storage unit 111, when recording a news program transmitted by MPEG-TS, the CPU 113 records the news program in the SP mode (5 Mbps) based on the profile data. It is determined that recording is performed on a memory card (recording medium 109). The CPU 113 controls the MPEG-TS conversion unit 105 and the stream control unit 107 based on the determination. If the recording mode corresponding to the genre of the program to be recorded is not set in the profile data, the CPU 113 records the MPEG-TS received by the tuner unit 101 without converting the format, and the stream. The control unit 107 is controlled. Further, when the recording medium corresponding to the genre of the program to be recorded is not set in the profile data, the CPU 113 records on a predetermined recording medium (for example, a hard disk (HDD)).

  FIG. 3 is a flowchart showing the operation of the program recording apparatus of the first embodiment. As shown in FIG. 3, in step S <b> 101, the CPU 113 acquires program genre information from the EIT included in the SI acquired by the transport decoder unit 103 from the MPEG-TS received by the tuner unit 101. In step S <b> 103, the CPU 113 acquires profile data from the storage unit 111. In step S105, the genre information of the program is compared with the profile data. If the genre information of the program is set in the profile data (profile information match), the process proceeds to step S107. If the genre information of the program is not set in the profile data (profile information mismatch), the process proceeds to step S109.

  In step S107, the CPU 113 controls the MPEG-TS conversion unit 105 and the stream control unit 107 to record the program on the corresponding recording medium in the corresponding recording mode based on the profile data. On the other hand, in step S109, the MPEG-TS conversion unit 105 and the stream control unit 107 are controlled so as to record the MPEG-TS received by the tuner unit 101 on a predetermined recording medium (for example, HDD) without converting the format.

  As described above, according to the first embodiment, a program can be recorded by automatically selecting a recording method desired by the user.

(Second Embodiment)
The second embodiment differs from the first embodiment in the operation when the profile information matches. Except for this point, the second embodiment is the same as the first embodiment. In FIG. 4, steps common to FIG. 1 are denoted by the same reference numerals. FIG. 4 is a flowchart showing the operation of the program recording apparatus of the second embodiment. As shown in FIG. 4, in step S105, the genre information of the program is compared with the genre information of the profile data. If the genre information of the program is set in the profile data (profile information match), the process proceeds to step S201. .

  In step S201, the CPU 113 controls the MPEG-TS converting unit 105 to convert the bit rate of the corresponding recording mode based on the profile data. As described above, in this embodiment, only the recording mode of the MPEG-TS converter 105 is set, and the format of data sent from the MPEG-TS converter 105 to the stream controller 107 is MPEG-TS, MPEG-TS is also recorded on the medium 109.

  As described above, according to the second embodiment, since MPEG-TS is not converted into another format, it is not necessary to manage a plurality of format streams. Note that the configuration of the program recording apparatus of the second embodiment is substantially the same as the configuration of the program recording apparatus of the first embodiment, and a description thereof will be omitted.

(Third embodiment)
The third embodiment differs from the first embodiment in the operation when the profile information matches. Except for this point, the second embodiment is the same as the first embodiment. In FIG. 5, steps common to FIG. 1 are denoted by the same reference numerals. FIG. 5 is a flowchart showing the operation of the program recording apparatus of the third embodiment. As shown in FIG. 5, in step S105, the genre information of the program is compared with the genre information of the profile data, and if the genre information of the program is set in the profile data (profile information match), the process proceeds to step S301. .

  In step S301, the CPU 113 controls the MPEG-TS conversion unit 105 to convert the bit rate of the corresponding recording mode based on the profile data and to convert from MPEG-TS to MPEG-PS. Thus, in this embodiment, the format of data sent from the MPEG-TS conversion unit 105 to the stream control unit 107 is MPEG-PS, and MPEG-PS is recorded on the recording medium 109.

  As described above, according to the third embodiment, when the condition is satisfied, the MPEG-TS is converted to the MPEG-PS and recorded on the recording medium. Therefore, the format conforms to the VR standard or the Video standard. Can be recorded. Note that the configuration of the program recording apparatus of the third embodiment is substantially the same as the configuration of the program recording apparatus of the first embodiment, and therefore description thereof is omitted.

(Fourth embodiment)
The fourth embodiment differs from the first embodiment in the operation when the profile information matches. Except for this point, the second embodiment is the same as the first embodiment. In FIG. 6, steps that are the same as those in FIG. FIG. 6 is a flowchart showing the operation of the program recording apparatus of the fourth embodiment. As shown in FIG. 6, in step S105, the genre information of the program is compared with the genre information of the profile data, and if the genre information of the program is set in the profile data (profile information match), the process proceeds to step S401. .

  In step S401, the CPU 113 controls the stream control unit 107 to record on the corresponding recording medium based on the profile data. As described above, in this embodiment, only the recording medium of the recording destination is set, and the format of data sent from the MPEG-TS conversion unit 105 to the stream control unit 107 is MPEG-TS.

  As described above, according to the fourth embodiment, it is possible to automatically record on a desired recording medium according to the genre of the program. Note that the configuration of the program recording apparatus of the fourth embodiment is substantially the same as the configuration of the program recording apparatus of the first embodiment, and therefore description thereof is omitted.

(Fifth embodiment)
The fifth embodiment differs from the first embodiment in the operation when the profile information matches. Except for this point, the second embodiment is the same as the first embodiment. In FIG. 7, steps that are the same as those in FIG. FIG. 7 is a flowchart showing the operation of the program recording apparatus of the fifth embodiment. As shown in FIG. 7, in step S105, the genre information of the program is compared with the genre information of the profile data. If the genre information of the program is set in the profile data (profile information match), the process proceeds to step S501. .

  In step S501, the CPU 113 controls the transport decoder unit 103 in addition to the control of the MPEG-TS conversion unit 105 and the stream control unit 107 described in the first embodiment based on the profile data. FIG. 8 is a diagram showing a storage structure of profile data used in the fifth embodiment. In the profile data shown in FIG. 8, the recording mode and the recording medium are specified for each genre, and the type of ES (Elementary Stream) selected for each genre is specified. In the example shown in FIG. 8, the news 1 program is set so that the recording mode is SP mode (5 Mbps), the recording medium 109 is designated as the HDD, and all ESs are selected. On the other hand, the news 2 program is set so that the recording mode is SP mode (5 Mbps), the recording medium 109 is designated as a memory card, and an audio (sound only) ES is selected.

  When the profile data shown in FIG. 8 is stored in the storage unit 111, when recording a program belonging to the genre of news 2 transmitted in MPEG-TS, the CPU 113, based on the profile data, records the program. The transport decoder unit 103 is controlled to select and output only the audio ES among the ESs. The transport decoder unit 103 determines the ES type (video, audio, etc.) from the PID (packet identifier) attached to the TS packet included in the ES constituting the transport stream, and outputs only the necessary ES. Further, the transport decoder unit 103 deletes unnecessary PIDs from the PMT (Program Map Table).

(Sixth embodiment)
The sixth embodiment differs from the first embodiment in the operation when the profile information matches. Except for this point, the second embodiment is the same as the first embodiment. In FIG. 9, steps that are the same as those in FIG. FIG. 9 is a flowchart showing the operation of the program recording apparatus of the sixth embodiment. As shown in FIG. 9, in step S105, the genre information of the program is compared with the genre information of the profile data. If the genre information of the program is set in the profile data (profile information match), the process proceeds to step S701. .

  In step S701, the CPU 113 controls the stream control unit 107 described in the first embodiment based on the profile data. FIG. 10 is a diagram showing a storage structure of profile data used in the sixth embodiment. In the profile data shown in FIG. 10, a recording mode and a recording medium are specified for each genre, and recording enable / disable information selected for each genre is specified. In the example shown in FIG. 10, the news 1 program is set so that the recording mode is SP mode (5 Mbps), the recording medium 109 is designated as the HDD, and recording is possible. On the other hand, in the animation, the recording mode is set to LP mode (5 Mbps), the recording medium 109 is designated as a memory card, and recording is impossible.

  When the profile data shown in FIG. 10 is stored in the storage unit 111, when recording a program belonging to the genre of animation transmitted by MPEG-TS, the CPU 113 records the program based on the profile data. 107 is controlled so as not to occur.

  As described above, according to the sixth embodiment, it is possible to record only the types of data that may be recorded on the recording medium. Note that the configuration of the program recording apparatus of the sixth embodiment is substantially the same as the configuration of the program recording apparatus of the first embodiment, and a description thereof will be omitted.

(Seventh embodiment)
The seventh embodiment differs from the first embodiment in the operation when the profile information matches. Except for this point, the second embodiment is the same as the first embodiment. In FIG. 12, steps common to FIG. 1 are denoted by the same reference numerals. FIG. 12 is a flowchart showing the operation of the program recording apparatus of the seventh embodiment. As shown in FIG. 12, in step S105, the genre information of the program is compared with the genre information of the profile data. If the genre information of the program is set in the profile data (profile information match), the process proceeds to step S801. .

  In step S801, the CPU 113, based on the profile data, in the multi-channel broadcast, the transport decoder unit so as to partialize the MPEG-TS so as to record only the program of the genre that matches the genre information of the profile data. 103 is controlled. As described above, in this embodiment, only the genre in which a multi-channel program is to be recorded can be output from the transport decoder unit 103.

  As described above, according to the sixth embodiment, it is possible to record only the types of data that may be recorded on the recording medium. Note that the configuration of the program recording apparatus of the seventh embodiment is substantially the same as the configuration of the program recording apparatus of the first embodiment, and a description thereof will be omitted.

  The program recording apparatus according to the present invention is useful as a data recording apparatus that automatically selects a recording method desired by a user and records the program.

1 is a block diagram showing a program recording apparatus according to a first embodiment. The figure which shows the storage structure of the profile data used in 1st Embodiment. The flowchart which shows operation | movement of the program recording device of 1st Embodiment. The flowchart which shows operation | movement of the program recording device of 2nd Embodiment. The flowchart which shows operation | movement of the program recording apparatus of 3rd Embodiment. The flowchart which shows operation | movement of the program recording device of 4th Embodiment. The flowchart which shows operation | movement of the program recording device of 5th Embodiment. The figure which shows the storage structure of the profile data used in 5th Embodiment The flowchart which shows operation | movement of the program recording device of 6th Embodiment. The figure which shows the storage structure of the profile data used in 6th Embodiment The flowchart which shows operation | movement of the program recording device of 7th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Tuner part 103 Transport decoder part 105 MPEG-TS conversion part 107 Stream control part 109 Recording medium 111 Storage part 113 CPU

Claims (7)

A program recording device for recording a program transmitted by a transport stream,
An information acquisition unit for acquiring program genre information from each TS packet of the transmitted transport stream;
A converter that converts the transport stream into data of a predetermined format;
A recording unit for recording the transport stream or the data in the predetermined format on a recording medium;
A control unit that controls at least one of the information acquisition unit, the conversion unit, and the recording unit;
A storage unit that stores profile data in which a recording method for each genre is set,
When the genre information of the program acquired by the information acquisition unit is set in the profile data, the control unit may be at least one of the information acquisition unit, the conversion unit, and the recording unit based on the profile data. A program recording apparatus characterized by controlling one of them. The program recording apparatus according to claim 1, wherein
The program recording apparatus according to claim 1, wherein at least one of a recording mode indicated by a bit rate and a type of the recording medium is set as a recording method for each genre set in the profile data. The program recording apparatus according to claim 1, wherein
The program recording apparatus, wherein the conversion unit converts a bit rate of the transport stream. The program recording apparatus according to claim 1, wherein
The program recording apparatus, wherein the conversion unit converts the transport stream into a program stream. The program recording apparatus according to claim 1, wherein
The information acquisition unit determines the type of the elementary stream from the identifier attached to the TS packet of the elementary stream constituting the transport stream, and outputs the necessary elementary stream,
The program recording apparatus characterized in that the type of elementary stream to be selected is set in the recording method for each genre set in the profile data. The program recording apparatus according to claim 1, wherein
The program recording apparatus according to claim 1, wherein when the genre set in the profile data and not to be recorded is about to be recorded, the recording unit does not record the genre on the recording medium. The program recording device according to claim 5, wherein
The program recording apparatus, wherein when the transport stream includes a multi-channel, the recording unit selects only a program of a genre that matches the profile data and records the selected program on the recording medium.

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