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:
Sep. 05, 2000
Filed:
Jun. 13, 1996
Keiichi Tsutsui, Kanagawa, JP;
Katsuji Igarashi, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
The invention provides a recording and/or reproduction apparatus for a record medium in the form of a disk by which the necessity for adjustment of an inclination of a head with respect to a disk upon production of the apparatus is eliminated and correct reproduction of data can be assured irrespective of a variation with respect to time. A control circuit controls an offset generation circuit to generate a predetermined offset signal. A skew servo circuit drives a skew motor in response to the offset signal to adjust the relative angle of an optical head with respect to an optical disk to a predetermined angle. A level detection circuit detects the amplitude of the tracking error signal then and outputs it to the control circuit. The control circuit adjusts the offset signal to be outputted from the offset generation circuit so that the amplitude of the tracking error signal may be maximum.