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Optical disc having an area storing original and user chain information specifying at least part of a video object stored on the disc, and a computer program and recording apparatus for recording and editing the chain information

  • US 6,181,870 B1
  • Filed: 09/17/1998
  • Issued: 01/30/2001
  • Est. Priority Date: 09/17/1997
  • Status: Expired due to Term
First Claim
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1. A machine readable optical disc comprising:

  • a data area capable of storing at least one video object including video data; and

    an index area capable or storing original chain information and at least one set of user-defined chain information;

    wherein the original chain information is a sequence of original cell information, each original cell information specifying at least part of one of the at least one video object as a corresponding original cell and indicating start and end portions of the corresponding original cell; and

    wherein the user-defined chain information is a sequence of user-defined cell information, each user-defined cell information specifying at least part of one of the at least one video object as a corresponding user-defined cell and indicating start and end portions of the corresponding user-defined cell, and a change of the user-defined chain information does not cause a change in the parts of the at least one video object specified by the sequence of user-defined cell information as corresponding user-defined cells;

    wherein each user-defined cell specified by the sequence of user-defined cell information is either of an original cell and a part of the original cell, such that a sequence of user-defined cells includes at least part of a sequence of original cells;

    wherein the parts of the at least one video object, specified by the sequence of user-defined cell information as corresponding user-defined cells, are stored in said data area in such a manner as not to ensure a seamless reproduction; and

    wherein, the original chain information is deletable and replaceable with a selected set of the user-defined chain information.

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