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:
Apr. 24, 2007
Filed:
May. 22, 2003
Satoshi Noro, Gifu-ken, JP;
Satoshi Noro, Gifu-ken, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A decoder having improved accuracy for reading data. The decoder decodes reproduced data including preamble data, to which a first synchronization pattern is added, and information data, which follows the preamble data and to which a second synchronization pattern is added. The decoder includes a memory for storing a first, second, and third comparison patterns respectively corresponding to the first synchronization pattern, the preamble data, and the second synchronization pattern. A comparison circuit compares the first synchronization pattern, the preamble data, and the second synchronization pattern respectively with the corresponding comparison patterns. A determination circuit generates a start signal to start decoding when at least two of the first synchronization pattern, the preamble data, and the second synchronization pattern match the corresponding comparison pattern. A decoding circuit starts error correction of the reproduced data in response to the start signal.