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.

Date of Patent:
Sep. 28, 2004

Filed:

Jul. 09, 2001
Applicant:
Inventors:

Hiroshi Komurasaki, Tokyo, JP;

Hisayasu Sato, Tokyo, JP;

Takahiro Miki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 5/00 ; H02M 1/100 ; H03K 1/704 ;
U.S. Cl.
CPC ...
H02M 5/00 ; H02M 1/100 ; H03K 1/704 ;
Abstract

There is provided a frequency voltage converter comprises a first transmission line for transmitting an input signal and a second transmission line provided with a delay line circuit, a third transmission line for transmitting a reference signal and a fourth transmission line provided with a delay line circuit, a mixer circuit, and a locked loop having a control circuit for outputting the same control signal to control portions of both delay line circuits so that the amount of a delay by the delay line circuit reaches one cycle of the reference signal, thereby holding linearity with respect to the frequency of a modulated wave signal and executing frequency voltage conversion even when a center frequency is low.


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