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:
Apr. 17, 2012

Filed:

Mar. 10, 2009
Applicants:

Youichirou Suzuki, Nishio, JP;

Noboru Maeda, Chiryu, JP;

Takahisa Koyasu, Chita, JP;

Koji Kondo, Tokoname, JP;

Shigeki Takahashi, Okazaki, JP;

Inventors:

Youichirou Suzuki, Nishio, JP;

Noboru Maeda, Chiryu, JP;

Takahisa Koyasu, Chita, JP;

Koji Kondo, Tokoname, JP;

Shigeki Takahashi, Okazaki, JP;

Assignees:

Nippon Soken, Inc., Nishio, JP;

Denso Corporation, Kariya, JP;

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

A receiving device is provided capable of avoiding reception of unnecessary energy when a signal waveform actually changes on a receiving side. An impedance control circuit includes a sensing unit to sense one or more of a voltage, current, or power of a signal to be received by a receiving circuit. The impedance control unit varies an input impedance according to the change in the sensed one or more quantities so that the received signal will be reflected. Thus the excess energy of the signal is reflected and fed to any other receiving circuit achieving stable communications.


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