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. 10, 2001
Filed:
Sep. 10, 1998
Hirose Electric Co., Ltd., Tokyo, JP;
Abstract
A pulse signal generator comprises a magnetic element (,) capable of causing a large Barkhausen jump, a detector for detecting a change of magnetic field in the magnetic element, a magnetic field source (,) for magnetizing the magnetic element in a predetermined direction and a permanent magnet (,). The pulse signal generator further comprises an auxiliary member (,) provided such that the magnetic element is flanked between the permanent magnet and the auxiliary member and is in a magnetic field between the permanent magnet and the auxiliary member. The magnetic field varies with movement of an object (,) to be detected with respect to the permanent magnet to produce a magnetic change in the magnetic element which is detected by the detector to produce a pulse.