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:
Mar. 23, 2004
Filed:
Sep. 19, 2001
Minoru Hirashima, Osaka, JP;
Funai Electric Co., Ltd., Osaka, JP;
Abstract
A disk reading apparatus includes a binarizing unit for binarizing a tracking error signal with a hysteresis width and for generating a track count signal , a jump unit for causing track-jump on the basis of the track count signal , a malfunction detecting unit for transmitting a malfunction signal when level inversion occurs to the track count signal while follow of the track is being implemented, and a control unit for widening the hysteresis width when the pickup is caused to follow the track, and for narrowing the hysteresis width when the pickup is caused to track-jump.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile