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:
Jan. 31, 2006
Filed:
Dec. 04, 2001
Mamoru Kudo, Kanagawa, JP;
Shinobu Nakamura, Kanagawa, JP;
Mamoru Kudo, Kanagawa, JP;
Shinobu Nakamura, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
In PLL circuits for reproducing a channel clock in synchronism with data read from a disk-shaped recording medium driven for rotation, the frequency dividing ratio of frequency dividers provided in desired signal paths is made changeable according to the reproduced signal format of a CD reproduced signal or a DVD reproduced signal, for example. Although the frequency of the channel clock in synchronism with the reproduced signal differs in different signal formats, the above configuration makes it possible to reproduce the channel clock properly in accordance with a plurality of signal formats only by the operation of changing the frequency dividing ratio in a PLL circuit.