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AssigneeSony Corporation
InventorsJun Yonemitsu, Shunji Yoshimura, Makoto Kawamura
Estimating the term…
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; with the TOC information including addresses of start sectors recorded in the user tracks. The data (both user and TOC information) is encoded in a long distance error correction code having at least eight parity symbols, and is run length limited (RLL) modulated.
A method of recording data on an optical disk having a diameter less than 140 mm, a thickness of 1.2 mm.+-.0.1 mm and a recording area divided into a lead-in area, a program area and a lead-out area, said method comprising the steps of:
Apparatus for recording data on an optical disk having a diameter less than 140 mm, a thickness of 1.2 mm.+-.0.1 mm and a recording area divided into a lead-in area, a program area and a lead-out area, said apparatus comprising:
The apparatus of claim 59 wherein said subcode identifier is a subcode address.
The apparatus of claim 59 wherein said subcode information includes track identifying data which identifies the track in which said given sector is recorded, copyright data which indicates whether user information in said track may be copied, and application identifying data which identifies a predetermined application allotted to said user information in said track.
Dependencies are inferred from the claim text.