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:
Aug. 05, 2014
Filed:
Oct. 07, 2010
Takafumi Satou, Okazaki, JP;
Takashi Suzuki, Obu, JP;
Yasuhiko Mukai, Anjo, JP;
Nobuhiko Uryu, Kariya, JP;
Takafumi Satou, Okazaki, JP;
Takashi Suzuki, Obu, JP;
Yasuhiko Mukai, Anjo, JP;
Nobuhiko Uryu, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
Bridge circuits have half bridges formed of sensor elements, which vary respective impedances in accordance with a rotating magnetic field generated by a rotary object. A control unit acquires output signals produced from intermediate points of the half bridges, and calculates a rotation angle of the rotary object based on the output signals. The control unit determines that the output signal is abnormal, if a calculation value of the output signal calculated based on at least four output signals is outside a predetermined range. The control unit thus determines which one of the output signals has become abnormal due to failure or the like.