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:
Nov. 02, 2010
Filed:
Jun. 12, 2008
John B. Groe, Poway, CA (US);
Michael Naone Farias, San Diego, CA (US);
Babak Nejati, San Diego, CA (US);
Marc Facchini, San Diego, CA (US);
Thomas Hardin, Encinitas, CA (US);
John B. Groe, Poway, CA (US);
Michael Naone Farias, San Diego, CA (US);
Babak Nejati, San Diego, CA (US);
Marc Facchini, San Diego, CA (US);
Thomas Hardin, Encinitas, CA (US);
Quintic Holdings, Santa Clara, CA (US);
Abstract
Systems and methods for nulling offsets in differential signaling systems are described. A first circuit may be configured to sense the difference between a first differential current and a second differential current and provide a sense signal to an adjustment circuit. The adjustment circuit may be configured to generate a correction signal based on the sense signal, where the correction signal is combined with the first differential current to reduce the offset between the first differential current and the second differential current. Alternately, the correction signal may be combined with the first and second differential currents to reduce the offset. The process may be repeated until the corrected first differential current and the second differential current are within a desired tolerance.