Method of recording and reproducing information on a video disk utilizing table of contents data
AssigneePioneer Electronic Corporation
InventorsTakao Sawabe, Ryuichi Todoroki, Takashi Sakakibara
Life of this patent
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Abstract
A method of recording information on a video disk, includes the steps of: recording a video signal on the video disk; and recording table-of-contents data to control reproduction of the recorded video signal, on a plurality of frames in a lead-in area of the video disk. The table-of-contents data has a data structure, which is completed in each of the plurality of frames and is repeatedly identical in each of the plurality of frames adjacent to each other.
Claims9
A method of recording and reproducing information on a video disk having a program area and a lead-in area, in which a plurality of frames are arranged in a circular direction, comprising the steps of:
- recording a video signal on the program area of the video disk;
- recording table-of-contents data, to control reproduction of the recorded video signal, on each of the plurality of frames in the lead-in area of the video disk, said table-of-contents data including at least chapter number information and frame number information for all chapter numbers and frame numbers of the recorded video signal in the program area and having a data structure which is completed in each of said plurality of frames in the lead-in area and the table-of-contents data is identically repeated in each of said plurality of frames adjacent to each other;
- reading the table-of-contents data from one of the plurality of frames and storing the read table-of-contents data before reproducing the video signal;
- and
- performing chapter number search and frame number search on the basis of the stored table-of-contents data, to reproduce the video signal from the program area.
Dependencies are inferred from the claim text.