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:
Sep. 20, 2005
Filed:
Sep. 25, 2001
Angel Ezquerra-moreu, San Diego, CA (US);
Pascal Audinot, Valbonne, FR;
Angel Ezquerra-Moreu, San Diego, CA (US);
Pascal Audinot, Valbonne, FR;
Other;
Abstract
A method for refining a DC-Offset estimate and removing of the DC-Offset includes the step of determining if any AM is present (). If AM is determined to be present, it is next determined if the I and Q path DC-Offset estimates are closely matched, if they are, then only a single search using the average of the I and Q path estimates is used (). If it determined however, that the two path estimates are not closely matched, than two searches are performed, one for each path (). After this, the blocking signals are searched for up to a predetermined number and the DC-Offset vector is generated (). Once the DC-Offset vector is generated, the DC-Offset is removed from the received signal (). After which it is determined if the AM level is high (), and if so, a transient correction routine is performed ().