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. 05, 2016
Filed:
Jun. 20, 2014
Applicant:
Altera Corporation, San Jose, CA (US);
Inventors:
Yanjing Ke, Union City, CA (US);
Tim Tri Hoang, San Jose, CA (US);
Assignee:
Altera Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/003 (2006.01); H03K 19/0175 (2006.01); H04B 1/10 (2006.01); H04L 25/02 (2006.01); H03K 19/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/1036 (2013.01); H03K 19/0005 (2013.01); H03K 19/00361 (2013.01); H04L 25/0278 (2013.01); H04L 25/0286 (2013.01); H04B 2001/1045 (2013.01);
Abstract
A driver circuit includes unit slice circuits that generate an output data signal based on an input data signal. The driver circuit reduces a voltage swing of the output data signal without changing a termination resistance of the driver circuit in response to decreasing a number of the unit slice circuits that generate the output data signal based on the input data signal.