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:
Jul. 15, 2003
Filed:
Mar. 29, 2000
Applicant:
Inventor:
Tadayuki Misaizu, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
An apparatus and method to detect the boundary between a recorded region and a recordable region. When data is recorded on fixed length packets, with each packet comprised of a plurality of blocks, the boundary is determined by a block in which a reading error has occured and that is located at a position distant from a track head by an integral multiple of the packet length. Alternatively, when the blocks are identifiable from among a plurality of block types, the boundary is determined by using the block type of the eroneous block.