Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1995-06-07
1997-01-21
Dinh, Tan
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
348342, 371 491, G11B 724, H04N 576
Patent
active
055965652
ABSTRACT:
Method and apparatus for recording MPEG-compressed video data and compressed audio data on an optical disk having a diameter less than 140 mm and, a thickness of 1.2 mm.+-.0.1 mm, with a plurality of record tracks having data recorded thereon as embossed pits representing information and exhibiting a track pitch in the range between 0.646 .mu.m and 1.05 .mu.m; with the tracks being divided into a lead-in area, a program area and a lead-out area. The data includes table of contents (TOC) information recorded in a plurality of sectors in at least one TOC track and user information recorded in a plurality of sectors in user tracks. The user information is comprised of MPEG-compressed video data, which may exhibit any one of difference MPEG formats, and compressed audio data, which likewise may exhibit an MPEG format, a PCM format or the like. The TOC information includes addresses of start sectors recorded in the user tracks. The data is encoded in a long distance error correction code having at least eight parity symbols.
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patent: 5459712 (1995-10-01), Sugaya et al.
patent: 5477527 (1995-12-01), Tsuchiya et al.
patent: 5504585 (1996-04-01), Fujinami et al.
patent: 5515388 (1996-05-01), Yagasaki
Iwamura Ryuichi
Kawamura Makoto
Yonemitsu Jun
Yoshimura Shunji
Dinh Tan
Frommer William S.
Sinderbrand Alvin
Sony Corporation
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