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 7098737 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 29, 2006

Filed:

May. 30, 2003
Applicants:

Ryuichi Fujimoto, Tokyo, JP;

Tetsuro Itakura, Tokyo, JP;

Inventors:

Ryuichi Fujimoto, Tokyo, JP;

Tetsuro Itakura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

An amplifier comprises an amplifier circuit which comprises a first inductor as an impedance element for degeneration, and a control circuit which has a second inductor electro-magnetically connected to the first inductor, and changes a control current flowing through the second inductor to change an inductance value of the first inductor, thereby changing amplification characteristics of the amplifier circuit.


Find Patent Forward Citations

Fujimoto, Ryuichi. (2006). Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier (U.S. Patent No. 7098737). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7098737

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

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