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:
Dec. 01, 2015
Filed:
Mar. 15, 2013
Megachips Corporation, Osaka-shi, JP;
Takahiro Itagaki, Nagareyama, JP;
Sarath Chandrasekhar Venkatesh Kumar, San Jose, CA (US);
Anand Gopalan, San Jose, CA (US);
Shankarram Athreya, San Jose, CA (US);
MegaChips Corporation, Osaka-shi, JP;
Abstract
A system for cancelling offset includes a gain circuit. The gain circuit may include a transistor circuit connected to a pair of input nodes and configured to convert an input signal to an output signal so that the output signal has a gain compared with the input signal. The gain circuit also may include a pair of output nodes configured to receive the output signal from the transistor circuit. The gain circuit is configured to cause a voltage change at one of the output nodes relative to another output node, in response to the gain circuit receiving a feedback offset correction signal. This effectively cancels at least a portion of an offset in the output signal.