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.:
Date of Patent:
Jan. 27, 2015
Filed:
Feb. 29, 2012
Takeshi Ueda, Kashiba, JP;
Takeshi Ueda, Kashiba, JP;
Jtekt Corporation, Osaka, JP;
Abstract
A first third harmonic component removing portion calculates an approximate value (sin θ)of a signal sin θ that is an output signal of a first magnetic sensor from which third harmonic components have been removed. A second third harmonic component removing portion calculates an approximate value (cos θ)of a signal cos θ that is an output signal of a second magnetic sensor from which third harmonic components have been removed. A rotation angle calculation portion calculates a rotation angle θ of a rotor based on the approximate value (sin θ)of sin θ, which has been calculated by the first third harmonic component removing portion and the approximate value (cos θ)of cos θ, which has been calculated by the second third harmonic component removing portion.
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