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. 21, 2014
Filed:
Feb. 15, 2012
Applicants:
Ethan Crain, Nashua, NH (US);
Thomas F. Hummel, Natick, MA (US);
Thucydides Xanthopoulos, Watertown, MA (US);
Scott Meninger, Groton, MA (US);
Inventors:
Ethan Crain, Nashua, NH (US);
Thomas F. Hummel, Natick, MA (US);
Thucydides Xanthopoulos, Watertown, MA (US);
Scott Meninger, Groton, MA (US);
Assignee:
Cavium, Inc., San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high-linearity Phase Interpolator based Clock and Data Recovery (CDR) circuit for use in a multi-standard Serializer/Deserializer (SerDes) is provided. By interpolating at a high, fixed frequency for all supported data rates and then dividing the output clock down to the appropriately frequency for each standard, the Phase Interpolator can provide for maximum phase linearity while reducing its sensitivity to noise.