JP2004234842A5

JP2004234842A5 -

Info

Publication number: JP2004234842A5
Application number: JP2004087767A
Authority: JP
Filing date: 2004-03-24
Publication date: 2005-05-26
Anticipated expiration: 2019-05-12

Description

この発明の一実施の形態に係るデジタル情報媒体は、１以上のオブジェクトのデータを格納するように構成されたデータエリアと、前記オブジェクトを管理する管理情報を格納するように構成された管理エリアを持つ。ここで、前記オブジェクトはＭＰＥＧエンコードされたビデオ情報を含むデータユニットから構成され、前記管理情報は前記オブジェクトの再生方法を管理するオリジナルプログラムチェーン情報を持つように構成され、前記オリジナルプログラムチェーン情報が１以上のプログラム情報および１以上のセル情報を含むように構成され、前記セル情報として前記ビデオ情報のオブジェクトの再生を管理するムービーセル情報が定義され、前記ムービーセル情報が前記オブジェクト内の再生箇所へのアクセスに用いられるエントリポイントに関するエントリポイント情報を含むように構成され、前記エントリポイント情報が前記エントリポイントに関するテキスト情報を含むように構成され、前記ムービーセル情報がムービーセル一般情報を含み、このムービーセル一般情報が該当セルの開始時間情報および該当セルの終了時間情報を含む。このように構成された情報媒体において、前記開始時間情報は対応する前記オブジェクトの最初の４つの前記データユニット内に格納され、前記終了時間情報は対応する前記オブジェクトの最後の４つの前記データユニット内に格納される。ここで、前記エントリポイント情報は前記エントリポイントの再生時間情報を含み、前記再生時間情報は９０ｋＨｚ単位の時間ベースと２７ＭＨｚ単位の時間ベースの２種類で計測されるように構成される。また、前記オリジナルプログラムチェーン情報で管理されるオリジナルプログラムチェーンの他にユーザ定義プログラムチェーンを持つように構成され、前記オリジナルプログラムチェーンは前記オブジェクトと前記オリジナルプログラムチェーン情報を持つが前記ユーザ定義プログラムチェーンはそれ自身のオブジェクトは持たず前記オリジナルプログラムチェーンの前記オブジェクトを参照するように構成される。そして、前記管理情報が、前記セルの再生時間を、この再生時間に対応した前記データユニットを指すポインタに変換するタイムマップ情報（ＴＭＡＰＩ）を含むように構成される。 A digital information medium according to an embodiment of the present invention comprises a data area configured to store data of one or more objects, and a management area configured to store management information for managing the objects. Have. Here, the object is composed of a data unit including MPEG encoded video information, the management information is configured to have original program chain information for managing the reproduction method of the object, and the original program chain information is 1 Movie cell information that is configured to include the above program information and one or more cell information, and manages reproduction of the object of the video information as the cell information is defined, and the movie cell information is to be reproduced to the reproduction location in the object Are configured to include entry point information relating to an entry point used for accessing, the entry point information is configured to include text information relating to the entry point, and the movie cell information includes movie cell general information. The movie cell general information including the end time information of the start time information and the corresponding cell of a corresponding cell. In an information medium configured in this way, the start time information is stored in the first four data units of the corresponding object, and the end time information is in the last four data units of the corresponding object. Stored in Here, the entry point information includes reproduction time information of the entry point, and the reproduction time information is configured to be measured in two types, a time base of 90 kHz unit and a time base of 27 MHz unit. In addition to the original program chain managed by the original program chain information, it is configured to have a user-defined program chain, and the original program chain has the object and the original program chain information, but the user-defined program chain is It is configured not to have its own object but to refer to the object in the original program chain. Then, the management information is configured to include time map information (TMAPI) for converting the reproduction time of the cell into a pointer pointing to the data unit corresponding to the reproduction time.

Claims

A data area configured to store data of one or more objects, and a management area configured to store management information for managing the objects,
The object comprises a data unit including MPEG encoded video information, the management information is configured to have original program chain information for managing a reproduction method of the object, and the original program chain information is one or more programs. Movie cell information that is configured to include information and one or more cell information, and manages reproduction of the object of the video information as the cell information is defined, and the movie cell information is used to access a reproduction location in the object Configured to include entry point information on an entry point to be used, wherein the entry point information is configured to include text information on the entry point, and the movie cell information includes movie cell general information; In the configuration information medium as Biseru general information including the end time information of the start time information and the corresponding cell of a corresponding cell,
The start time information is stored in the first four data units of the corresponding object, and the end time information is stored in the last four data units of the corresponding object;
The entry point information includes the playback time information of the entry point, the playback time information is configured to be measured by the time-based two time-based and 27MHz units 90kHz units,
In addition to the original program chain managed by the original program chain information, it is configured to have a user-defined program chain,
The original program chain has the object and the original program chain information, but the user-defined program chain is configured to refer to the object of the original program chain without having its own object.
A digital information medium characterized in that the management information includes time map information for converting the reproduction time of the cell into a pointer pointing to the data unit corresponding to the reproduction time .

An information medium comprising a data area configured to store data of one or more objects and a management area configured to store management information for managing the objects, the objects being MPEG encoded video The management information is configured to have original program chain information for managing a reproduction method of the object, and the original program chain information includes one or more program information and one or more cell information. Entry point information related to an entry point which is configured to include, and which defines movie cell information for managing playback of an object of the video information as the cell information, wherein the movie cell information is used to access a playback location in the object The The entry point information includes text information on the entry point, the movie cell information includes movie cell general information, and the movie cell general information includes start time information of the corresponding cell and the corresponding cell. Configured to include end time information, the start time information is stored in the first four data units of the corresponding object, and the end time information is in the last four data units of the corresponding object , The entry point information includes reproduction time information of the entry point, and the reproduction time information is configured to be measured in two types of 90 kHz time base and 27 MHz time base, and the original program Original managed by chain information The program chain is configured to have a user-defined program chain, and the original program chain has the object and the original program chain information, but the user-defined program chain has no object of its own and the original program chain is A digital information medium configured to refer to the object, wherein the management information is configured to include time map information for converting the reproduction time of the cell into a pointer pointing to the data unit corresponding to the reproduction time In things,
Recording the object on the information medium;
A digital information recording method characterized in that the management information is recorded on the information medium.

An information medium comprising a data area configured to store data of one or more objects and a management area configured to store management information for managing the objects, the objects being MPEG encoded video The management information is configured to have original program chain information for managing a reproduction method of the object, and the original program chain information includes one or more program information and one or more cell information. Entry point information related to an entry point which is configured to include, and which defines movie cell information for managing playback of an object of the video information as the cell information, wherein the movie cell information is used to access a playback location in the object The The entry point information includes text information on the entry point, the movie cell information includes movie cell general information, and the movie cell general information includes start time information of the corresponding cell and the corresponding cell. Configured to include end time information, the start time information is stored in the first four data units of the corresponding object, and the end time information is in the last four data units of the corresponding object , The entry point information includes reproduction time information of the entry point, and the reproduction time information is configured to be measured in two types of 90 kHz time base and 27 MHz time base, and the original program Original managed by chain information The program chain is configured to have a user-defined program chain, and the original program chain has the object and the original program chain information, but the user-defined program chain has no object of its own and the original program chain is A digital information medium configured to refer to the object, wherein the management information is configured to include time map information for converting the reproduction time of the cell into a pointer pointing to the data unit corresponding to the reproduction time In things,
Reproducing the management information from the information medium;
And reproducing the object from the information medium.

An information medium comprising a data area configured to store data of one or more objects and a management area configured to store management information for managing the objects, the objects being MPEG encoded video The management information is configured to have original program chain information for managing a reproduction method of the object, and the original program chain information includes one or more program information and one or more cell information. Entry point information related to an entry point which is configured to include, and which defines movie cell information for managing playback of an object of the video information as the cell information, wherein the movie cell information is used to access a playback location in the object The The entry point information includes text information on the entry point, the movie cell information includes movie cell general information, and the movie cell general information includes start time information of the corresponding cell and the corresponding cell. Configured to include end time information, the start time information is stored in the first four data units of the corresponding object, and the end time information is in the last four data units of the corresponding object , The entry point information includes reproduction time information of the entry point, and the reproduction time information is configured to be measured in two types of 90 kHz time base and 27 MHz time base, and the original program Original managed by chain information The program chain is configured to have a user-defined program chain, and the original program chain has the object and the original program chain information, but the user-defined program chain has no object of its own and the original program chain is A digital information medium configured to refer to the object, wherein the management information is configured to include time map information for converting the reproduction time of the cell into a pointer pointing to the data unit corresponding to the reproduction time In things,
Means for reproducing the management information from the information medium;
Means for reproducing the object from the information medium
A digital information reproducing apparatus characterized by comprising: