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:
Aug. 15, 2006
Filed:
Jul. 09, 2002
Akira Itou, Tokyo, JP;
Toshihiko Hirose, Kanagawa, JP;
Akira Itou, Tokyo, JP;
Toshihiko Hirose, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
There is provided a method of detecting a block sync signal in which a sync signal and code sequence can be distinguished from each other to recognize the head of a block composed of a plurality of code words at the time of data reading or reception. A sync word detector () is supplied with a window signal Sync_window generated based on a parity OK signal supplied from a parity check circuit () and indicating a period between the sync word included in signal read from the medium () and the ID information, and detects the sync word as to a bit string detected by a PRML Viterbi detector () with the use of the Sync_window signal.