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:
Apr. 19, 2005
Filed:
Apr. 30, 2003
Ranjit Singh, Kanata, CA;
Youcef Fouzar, Ottawa, CA;
Simon John Skierszkan, Stittsville, CA;
Hazem Abdel-maguid, Ottawa, CA;
Ranjit Singh, Kanata, CA;
Youcef Fouzar, Ottawa, CA;
Simon John Skierszkan, Stittsville, CA;
Hazem Abdel-Maguid, Ottawa, CA;
Zarlink Semiconductor Inc., Kanata, CA;
Abstract
A voltage controlled oscillator generates an output signal whose frequency varies as a first function of a control voltage applied to a control terminal. The voltage controlled oscillator has a wide range of frequency of operation. A gain adjust circuit adjusts the gain of the voltage controlled oscillator such that the first function varies as a second function of the gain. In a preferred embodiment the gain adjust circuit includes a variable impedance that may be external or integrated onto a common chip with the oscillator core.