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:
Nov. 20, 2007
Filed:
May. 24, 2006
Naresh Shanbhag, Champaign, IL (US);
Hyeon Min Bae, Champaign, IL (US);
Jinki Park, Plano, TX (US);
Paul Suppiah, San Jose, CA (US);
Naresh Shanbhag, Champaign, IL (US);
Hyeon Min Bae, Champaign, IL (US);
Jinki Park, Plano, TX (US);
Paul Suppiah, San Jose, CA (US);
Finisar Corporation, Sunnyvale, CA (US);
Abstract
A noise tolerant voltage controlled oscillator is described. The voltage controlled oscillator include a varactor element as part of an LC tank circuit. The varactor element is biased by a bias signal and a bias-dependent control signal. The bias-dependent control signal tunes the LC tank circuit. Because the control signal is bias-dependent, noise and other deleterious influences do not cause the varactor element to deviate in capacitance. Instead, the bias-dependent control signal is a tuning signal that is centered around the bias signal, which allows the varactor element to provide a constant capacitance in the event of a varying bias signal.