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:
Jun. 26, 2018
Filed:
Mar. 10, 2017
Tdk Corporation, Tokyo, JP;
Shinichirou Mochizuki, Tokyo, JP;
Hiraku Hirabayashi, Tokyo, JP;
Tsuyoshi Umehara, Tokyo, JP;
Hiroshi Naganuma, Tokyo, JP;
Kazuya Watanabe, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A correction apparatus for an angle sensor includes a correction unit for performing first correction processing on a first detection signal and performing second correction processing on a second detection signal. The first correction processing is processing for combining the first detection signal and a first correction value to generate a first corrected detection signal. The second correction processing is processing for combining the second detection signal and a second correction value to generate a second corrected detection signal. The first correction value has a first amplitude and varies with a first period. The second correction value has a second amplitude and varies with a second period. The first and second amplitudes are of the same value. The first and second periods are of the same value equal to ⅓ or ⅕ of the period of an ideal component of each of the first and second detection signals.