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:
Oct. 11, 2005
Filed:
Mar. 21, 2002
Takamasa Kinpara, Kariya, JP;
Hirofumi Uenoyama, Nishikasugai-gun, JP;
Takamasa Kinpara, Kariya, JP;
Hirofumi Uenoyama, Nishikasugai-gun, JP;
Denso Corporation, Kariya, JP;
Abstract
A rotation detecting device includes a magnetoresistive unit comprising a pair of magnetoresistive sensing elements arranged in line symmetry, and a biasing magnet that generates magnetic flux. The magnetoresistive unit is arranged so that its line of symmetry extends in the direction of the magnetic flux generated by the biasing magnet. As a result, an output of the magnetoresistive unit does not change when the magnetic flux passes along the line of symmetry whether operating in a high temperature condition or a room temperature condition. By setting the threshold level to this output voltage, the output of the magnetoresistive unit can be shaped into a pulse signal without changing it in correspondence with temperatures.