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:
Feb. 26, 2008
Filed:
Jun. 25, 2004
Applicants:
Stephen T. Janesch, Greensboro, NC (US);
Paul G. Martyniuk, Somerville, MA (US);
Inventors:
Stephen T. Janesch, Greensboro, NC (US);
Paul G. Martyniuk, Somerville, MA (US);
Assignee:
RF Micro Devices, Inc., Greensboro, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 5/12 (2006.01); H03I 7/099 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tunable oscillator suitable for use in a frequency synthesizer of a transceiver is controlled by varying one or more parameters associated with the oscillator. In particular, a digital control signal affects one or more of the capacitances of the oscillator, the bias voltage of the oscillator, the supply voltage, or the bias current of the oscillator. Changes to one or more of these parameters allows the frequency of the oscillator to be controlled as desired.