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. 01, 2016
Filed:
Mar. 04, 2014
Applicant:
Lattice Semiconductor Corporation, Portland, OR (US);
Inventors:
Alan T. Ruberg, Menlo Park, CA (US);
Srikanth Gondi, Sunnyvale, CA (US);
Assignee:
Lattice Semiconductor Corporation, Portland, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01); H04L 25/02 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04L 25/0288 (2013.01); H04L 25/028 (2013.01); H04L 25/03885 (2013.01);
Abstract
A method for calibrating signal swing and a trip reference voltage. The signal swing of a system can be calibrated in a symmetric or asymmetric technique through adjustment of a drive parameter such as a supply voltage for a transmitter or a drive termination. The trip reference voltage of the system can also be calibrated in a symmetric or asymmetric technique through sampling of a data pattern to determine an ideal level of the trip reference voltage.