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:
Oct. 19, 2010
Filed:
Jul. 01, 2010
Applicant:
Tszshing Cheung, Kawasaki, JP;
Inventor:
Tszshing Cheung, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The phase interpolator includes two adjustable delaysand, phase comparatorwhich detects a phase difference between a signal delayed by the adjustable delayand a signal delayed by the adjustable delay, an integratorwhich integrates the outputs of the phase comparatorand multipliers-and-which set a control voltage for the adjustable delaysand. The feedback loop comprising phase comparatorand integratorcontrols a delay amount of the adjustable delaythereby securing a phase relation between {ACK, ACKand ICK to achieve a stable ICK phase.