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:
Dec. 27, 2016

Filed:

Jun. 11, 2013
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Takashi Saitou, Okazaki, JP;

Akira Takaoka, Okazaki, JP;

Nobuya Watabe, Nagoya, JP;

Takatoshi Sekizawa, Kariya, JP;

Munenori Matsumoto, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, Aichi-pref., JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/40 (2006.01); H04B 1/18 (2006.01);
U.S. Cl.
CPC ...
H03H 7/40 (2013.01); H04B 1/18 (2013.01);
Abstract

A communication device changes an applied voltage output from a voltage circuit, and allows a capacitance measuring device to measure the respective capacitance values of a variable capacitance element before and after a change in the applied voltage. The communication device calculates a voltage correction value for correcting an initial variation of the capacitance value of the variable capacitance element using the respective capacitance values of the variable capacitance element before and after the change in the applied voltage, and respective applied voltage values before and after the change, and a correction voltage for canceling the initial variation in the capacitance value of the variable capacitance element, and outputs the correction voltage from the voltage circuit.


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