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:
Mar. 24, 2015
Filed:
Aug. 06, 2012
Applicants:
Huy M. Nguyen, San Jose, CA (US);
Vijay Gadde, Cupertino, CA (US);
Sivakumar Doraiswamy, San Jose, CA (US);
Inventors:
Huy M. Nguyen, San Jose, CA (US);
Vijay Gadde, Cupertino, CA (US);
Sivakumar Doraiswamy, San Jose, CA (US);
Assignee:
Rambus Inc., Sunnyvale, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/003 (2006.01); H04L 25/02 (2006.01); H03F 3/19 (2006.01); H03K 19/00 (2006.01);
U.S. Cl.
CPC ...
H04L 25/028 (2013.01); H03F 3/19 (2013.01); H03K 19/0005 (2013.01); H03K 19/00384 (2013.01);
Abstract
Described are amplifiers that facilitate high-speed communication with calibrated drive strength and termination impedance. Drivers and termination elements can be divided into a number N of parallel portions, one or more of which can be disabled and updated without interfering with signal (e.g., clock or data) transmission. Some embodiments identify inactive elements by examining incoming signals.