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:
Jul. 10, 2012
Filed:
Apr. 08, 2009
Sergey Timofeev, Santa Clara, CA (US);
Atul Salhotra, Sunnyvale, CA (US);
Kedar Shirali, San Jose, CA (US);
Srinivasa H. Garlapati, San Ramon, CA (US);
Sergey Timofeev, Santa Clara, CA (US);
Atul Salhotra, Sunnyvale, CA (US);
Kedar Shirali, San Jose, CA (US);
Srinivasa H. Garlapati, San Ramon, CA (US);
Marvell International Ltd., , BM;
Abstract
An apparatus has front end circuitry to demodulate a radio frequency signal and to produce a baseband signal, the radio frequency signal being periodic and having a predetermined period. An analog-to-digital converter converts the baseband signal into a digital signal, the digital signal being periodic and having the predetermined period. A DC offset adjustment circuit includes a filter for estimating a DC offset contained in the digital signal based only on digital samples in a sample period having a length equal to the predetermined period. An adder removes the estimated DC offset from the digital signal. A method of operating such an apparatus is also disclosed.