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. 09, 1997
Filed:
Aug. 30, 1994
Applicant:
Inventors:
Masaya Tamamura, Kawasaki, JP;
Shinichi Shiotsu, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D / ; H03L / ;
U.S. Cl.
CPC ...
375371 ; 331 25 ;
Abstract
A signal processing device includes a first PLL circuit operating in synchronism with a serial input data signal, and a second PLL circuit operating in synchronism with an external reference clock signal. The oscillation frequency of the first PLL circuit is controlled by the second PLL circuit.