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. 14, 2009
Filed:
Sep. 29, 2006
Ligang Zhang, Oceanside, CA (US);
Scott D. Willingham, Austin, TX (US);
Peter J. Vancorenland, Austin, TX (US);
Yunteng Huang, Irvine, CA (US);
Ligang Zhang, Oceanside, CA (US);
Scott D. Willingham, Austin, TX (US);
Peter J. Vancorenland, Austin, TX (US);
Yunteng Huang, Irvine, CA (US);
Silicon Laboratories, Inc., Austin, TX (US);
Abstract
A communications device including communications circuitry, tunable filter circuitry including a node configured to pass a signal between an antenna and the communication circuitry, and control circuitry configured to cause energy in the tunable filter circuitry to be adjusted for a time period and configured to determine a resonant frequency of the tunable filter circuitry from oscillations on the node caused by the energy subsequent to the time period is provided.