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.:

US 6791425 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 14, 2004

Filed:

Oct. 10, 2002
Applicant:
Inventor:

Masahiro Kitamura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/00 ;
U.S. Cl.
CPC ...
H03B 5/00 ;
Abstract

An LC oscillator includes inductors, a variable capacitor section, an adjusting section for varying the capacitance of the variable capacitor section in response to a control voltage supplied in accordance with a digital control signal, and an additional variable capacitor section for varying its capacitance in response to an additional control voltage. The variable capacitor section includes first to Kth capacitors, where K is an integer greater than one. The adjusting section includes buffer section, each of which selectively generates one of a first voltage and a second voltage lower than the first voltage in response to a kth bit of the digital control signal, where k is an integer varying from one to K, thereby generating first to Kth control voltages to be supplied to the first to Kth capacitors.


Find Patent Forward Citations

Kitamura, Masahiro. (2004). Lc oscillator with small oscillation frequency variations (U.S. Patent No. 6791425). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6791425

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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