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:
Mar. 21, 2006
Filed:
Aug. 27, 2004
Applicant:
Niranjan Talwalkar, San Jose, CA (US);
Inventor:
Niranjan Talwalkar, San Jose, CA (US);
Assignee:
IRF Semiconductor, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/12 (2006.01); H03B 5/24 (2006.01); H03B 5/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A low-phase-noise and high-performance voltage-controlled oscillator (VCO) uses a noise-canceling differential varactor topology. An implementation includes circuitry for a fully-differential varactor-inductor oscillator for reduced noise and improved performance. Susceptibility to common-mode noise sources coupled into the varactors is reduced.