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. 24, 2012
Filed:
Sep. 25, 2007
Robert J. Drost, Los Altos, CA (US);
Robert Proebsting, Sonora, CA (US);
Arlene Proebsting, Legal Representative, Sonora, CA (US);
Scott M. Fairbanks, Corvallis, OR (US);
Ronald Ho, Mountain View, CA (US);
Robert J. Drost, Los Altos, CA (US);
Robert Proebsting, Sonora, CA (US);
Arlene Proebsting, legal representative, Sonora, CA (US);
Scott M. Fairbanks, Corvallis, OR (US);
Ronald Ho, Mountain View, CA (US);
Oracle America, Inc., Redwood Shores, CA (US);
Abstract
A method for calibrating an offset voltage of an amplifier used to amplify capacitively coupled communication signals is described. During this process, a common voltage is applied to one or more inputs to the amplifier. Next, an output of the amplifier is iteratively, measured, and charge is applied to the one or more inputs until the offset voltage is less than a pre-determined value. Note that applying the charge may involve applying a sequence of one or more charge pulses.