The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2011
Filed:
Mar. 06, 2000
Optical disk and method and apparatus for recording and then playing information back from that disk
Jun Yonemitsu, Kanagawa, JP;
Ryuichi Iwamura, San Diego, CA (US);
Shunji Yoshimura, Tokyo, JP;
Makoto Kawamura, Kanagawa, JP;
Jun Yonemitsu, Kanagawa, JP;
Ryuichi Iwamura, San Diego, CA (US);
Shunji Yoshimura, Tokyo, JP;
Makoto Kawamura, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
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 μm and 1.05 μm; 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.