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:
May. 30, 2006
Filed:
Oct. 25, 2004
Izuru Shinjo, Tokyo, JP;
Yoshinori Tatenuma, Tokyo, JP;
Masahiro Yokotani, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a rotation information detecting apparatus which suppresses noise superimposed on an output line and can prevent detection of erroneous rotation information. A periodic changing magnetic field is applied to a detection element according to the rotation of a rotation object, and rotation information is detected. A signal processing circuit includes an output circuit for generating a binary output signal changing between a high level and a low level according to the rotation of the rotation object. The output circuit includes an output transistor, an output line connected to the output transister, a power supply terminal for the output transistor, and a noise suppression circuit connected between the output line and the power supply terminal a power supply terminal. The noise suppression circuit includes a diode and a current limiting resistor.