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:
Dec. 11, 2000
Filed:
Oct. 29, 1998
Applicant:
Inventor:
Masato Yamazaki, Tokyo, JP;
Assignee:
OKI Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
327159 ; 327299 ; 327141 ; 327294 ;
Abstract
A first clock and a second clock are provided. The first and second clocks operate at first and second frequencies, respectively. The phase difference between the first clock and the second clock is accumulated to generate a control signal. In response to the control signal, the phase of the second clock is controlled so as to synchronize with the first clock. Preferably, the phase of the second clock is shifted from the normal timing, when the accumulated value reaches a cycle of the first clock.