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:
May. 07, 2013
Filed:
Aug. 22, 2007
Applicants:
Bassem Fahs, Caen, FR;
Patrick A. Y. Ozenne, Benouville, FR;
Inventors:
Bassem Fahs, Caen, FR;
Patrick A. Y. Ozenne, Benouville, FR;
Assignee:
ST-Ericsson SA, Geneva, CH;
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/18 (2006.01); H04B 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method to track and control the resonance frequency of a band-pass filter provides a solution for the sensitivity limitations against temperature and process variations. A phase sensing module obtains the phase difference between the input and output and a negative feed-back control architecture can be used to tune the filter's resonance over the input RF frequency.