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. 21, 2008
Filed:
Dec. 28, 2005
Hon-mo Raymond Law, Beaverton, OR (US);
Mamun Ur Rashid, Folsom, CA (US);
Aaron K. Martin, El Dorado Hills, CA (US);
Hon-Mo Raymond Law, Beaverton, OR (US);
Mamun Ur Rashid, Folsom, CA (US);
Aaron K. Martin, El Dorado Hills, CA (US);
Abstract
An integrated circuit includes clock deskew circuitry. The deskew circuitry includes multiple loop circuits to align a received clock with a data eye, and to reduce the effects of clock drift caused by voltage and temperature variations. The loop circuits include phase interpolators to produce local clock signals. Local clock signals are provided to seqiuential elements through local clock trees and are also provided to a phase detector through a dummy local clock tree. The operation of the phase interpolators is influenced by the phase detector.