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:
Jul. 04, 2017
Filed:
Aug. 08, 2016
Johnson Electric S.a., Murten, CH;
Hui Min Guo, Hong Kong, CN;
Shu Zuo Lou, Hong Kong, CN;
Xiao Ming Chen, Hong Kong, CN;
Guang Jie Cai, Hong Kong, CN;
Chun Fai Wong, Hong Kong, CN;
Yue Li, Hong Kong, CN;
Chi Ping Sun, Hong Kong, CN;
Bao Ting Liu, Shen Zhen, CN;
En Hui Wang, Shen Zhen, CN;
Fei Xin, Shen Zhen, CN;
Shing Hin Yeung, Hong Kong, CN;
Xiu Wen Yang, Shen Zhen, CN;
Li Sheng Liu, Shen Zhen, CN;
Yan Yun Cui, Shen Zhen, CN;
Shu Juan Huang, Shen Zhen, CN;
JOHNSON ELECTRIC S.A., Murten, CH;
Abstract
The present teaching relates to a magnetic sensor comprising an input port, a magnetic field detecting circuit that generates a magnet detection signal, an output control circuit that controls operation of the magnetic sensor, and an output port. The magnetic field detecting circuit includes a magnetic sensing element that detects an external magnetic field and output a detection signal, a signal processing element configured to amplify the detection signal and removing interference from the detection signal, and an analog-digital conversion element configured to convert the processed detection signal into a magnet detection signal, and the output control circuit controls the magnetic sensor to operate in at least one of a first state and a second state responsive to at least the magnet detection signal, wherein the signal processing element comprises an amplifier and a filter circuit, and gain of the amplifier is greater than gain of the filter circuit.