Digital video recording/playback system with entry point processing function
AssigneeKabushiki Kaisha Toshiba
InventorsYasufumi Tsumagari, Shinichi Kikuchi
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Abstract
This invention allows the user to insert an entry point (bookmark) at an arbitrary recording position of video data, audio data, and the like as if he or she placed a bookmark between pages of a book. Information RTR_VMG that manages recorded objects includes movie cell entry point information M_C_EPI. M_C_EPI includes entry point playback time information EP_PTM and text information PRM_TXTI that pertains to an entry point. PRM_TXTI can store text information that pertains to its contents together with type information and date information of an entry point.
Claims24
A data structure, comprising:
- a data area configured to store data in a form of at least one object, and in which each object includes at least one object unit having record information in a form of at least one pack;
- and
- a management area configured to store management information for managing said at least one object, and in which said management information includes program chain information configured to specify a manner of presentation of said at least one object,
- wherein said program chain information relates to at least one piece of cell information, and
- wherein said cell information has an area configured to describe entry point information of at least one entry point, each entry point marking an arbitrary position in said record information for a user to freely set said record information.
An information medium, comprising:
- a data area configured to store data in a form of at least one object, and in which each object includes at least one object unit having record information in a form of at least one pack, said record information being presented within a prescribed period of time;
- and
- a management area configured to store management information for managing said object, and in which said management information includes program chain information configured to specify an order of presentation of said at least one object,
- wherein said program chain information includes at least one piece of cell information, and
- wherein said cell information has an area configured to describe information of at least one entry point, each entry point marking an arbitrary position in said record information for a user to freely set said record information.
An information medium, comprising:
- a data area configured to store at least one data object having record information;
- and
- a management area configured to store management information for managing said at least one data object, and in which said management information includes program chain information configured to specify a manner of presentation of said at least one data object,
- wherein said program chain information includes at least one piece of cell information, and
- wherein said cell information has an area configured to describe entry point information of at least one entry point, each entry point marking an arbitrary position in said record information for a user to freely set contents of said at least one data object.
A recording apparatus using an information medium, the information medium including a data area configured to store at least one data object having record information, and a management area configured to store management information for managing said at least one data object, and in which said management information includes program chain information configured to specify a manner of presentation of said at least one data object, wherein said program chain information includes at least one piece of cell information, and wherein said cell information has an area configured to describe entry pint information of at least one entry point, each entry point marking an arbitrary position in said record information for a user to freely set contents of said at least one data object, the recording apparatus comprising:
- means for recording said record information in the data area of the information medium and
- means for entering said entry points with a predetermined time interval when said record information is recorded.
A reproducing apparatus using an information medium, the information medium including a data area configured to store at least one data object having record information, and a management area configured to store management information for managing said at least one data object, and in which said management information includes program chain information configured to specify a manner of presentation of said at least one data object, wherein said program chain information includes at least one piece of cell information, and wherein said cell information has an area configured to describe entry point information of at least one entry point, each entry point marking an arbitrary position in said record information for a user to freely set contents of said at least one data object, the reproducing apparatus comprising:
- means for reading information of at least one entry point from said management information;
- and
- means for converting a presentation time of the at least one entry point to a correspondence file access pointer in order to access said at least one entry point when a presentation or playback of said at least one entry point is required.
Dependencies are inferred from the claim text.