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:
Feb. 03, 1998
Filed:
Jan. 24, 1997
Applicant:
Inventors:
Susumu Senshu, Kanagawa, JP;
Tomohiro Koda, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 54 ; 369 59 ; 369 50 ; 369 47 ;
Abstract
A playback clock generating circuit whereby the effect of a local flaw may be diminished to enable high-precision clock reproduction. During reproduction of a reference area, a signal processor 2 calculates a phase error of the playback clocks CK by a clock generation processor 2A based on sampled values of the playback signals of the reference pattern A/D converted by an A/D converter 1. During reproduction of a data area, the signal processor sends a phase correction signal derived form the phase error to a clock generator 3 for correcting the phase of the playback clock CK generated by the clock generator 3.