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:
Jan. 06, 2009
Filed:
May. 23, 2006
Applicants:
Ozan E. Erdogan, Campbell, CA (US);
Jacques C. Rudell, Redwood City, CA (US);
Roger Brockenbrough, Los Gatos, CA (US);
Inventors:
Ozan E. Erdogan, Campbell, CA (US);
Jacques C. Rudell, Redwood City, CA (US);
Roger Brockenbrough, Los Gatos, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R 23/00 (2006.01); H03B 5/24 (2006.01); H03K 3/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
Calibrating a filter is disclosed. The filter is reconfigured as an oscillator during calibration. Switches and/or other implementations of reconfiguring a filter are used to reconfigure the negative feedback loop of the filter to a positive feedback loop. The oscillation parameters are then measured to adjust the components of the filter to achieve an oscillation that corresponds to a desired filter characteristic.