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:
Apr. 15, 2008
Filed:
Aug. 16, 2006
Kenneth Thet Zin Oo, Milpitas, CA (US);
Olakanmi Oluwole, San Jose, CA (US);
Pierte Roo, Sunnyvale, CA (US);
Kenneth Thet Zin Oo, Milpitas, CA (US);
Olakanmi Oluwole, San Jose, CA (US);
Pierte Roo, Sunnyvale, CA (US);
Marvell International Ltd., , BM;
Abstract
A circuit includes a chopper switch to receive an analog input signal and output a first chopped signal of a first polarity during a first clock phase and a second chopped signal of a second polarity during a second clock phase. An analog block receives and processes the first and second chopped signals and outputs first and second processed signals, respectively. The analog bock has a first offset voltage associated thereto. The first and second processed signals, each includes a first offset component that is associated with the first offset voltage. A data converter receives and converts the first and second processed signals into first and second digital codes, respectively. An offset canceller receives the first and second digital codes. The offset canceller is configured to remove the first offset components from the first and second digital codes and output a digital output signal corresponding to the analog input signal.