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. 26, 2014
Filed:
Mar. 01, 2012
Kei Hayashi, Kyoto, JP;
Kei Hayashi, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A magnetic sensor includes a magneto-electric transducer, a switch circuit, an amplifier circuit, a subtractor circuit, and a selector circuit. The subtractor circuit performs a first subtraction process of generating a first subtraction voltage by subtracting an amplification voltage obtained under an immediately prior first bias state from an amplification voltage obtained under a second bias state and a second subtraction process of generating a second subtraction voltage by subtracting an amplification voltage obtained under an immediately prior second bias state from an amplification voltage obtained under a first bias state in a serial and parallel manner. The selector circuit alternately selects the first subtraction voltage and the second subtraction voltage to output a select voltage.