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:
Jan. 03, 2012

Filed:

Aug. 27, 2008
Applicants:

Nobuyasu Kanekawa, Hitachi, JP;

Masamichi Yamada, Hitachinaka, JP;

Shoji Sasaki, Hitachinaka, JP;

Katsuaki Fukatsu, Naka, JP;

Kenji Nakabayashi, Hitachinaka, JP;

Daisuke Terada, Hitachinaka, JP;

Inventors:

Nobuyasu Kanekawa, Hitachi, JP;

Masamichi Yamada, Hitachinaka, JP;

Shoji Sasaki, Hitachinaka, JP;

Katsuaki Fukatsu, Naka, JP;

Kenji Nakabayashi, Hitachinaka, JP;

Daisuke Terada, Hitachinaka, JP;

Assignee:

HItachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 29/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A first sensor element outputs a first output signal in correspondence to a direction of the magnetic flux lines acting from the outside. A second sensor element outputs a second output signal associated with the first output signal in correspondence to a direction of the magnetic flux lines acting from the outside. A first conversion processing section converts the first output signal output from the first sensor element and the second output signal output from the second sensor element into the second physical quantity. A second conversion processing section converts the first output signal output from the first sensor element and the second output signal output from the second sensor element into a signal representing the rotation angle of the motor.


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