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. 09, 1977
Filed:
Apr. 30, 1975
Paul Hini, Barschenweg, DT;
Siemens Aktiengesellschaft, Munich, DT;
Abstract
In an arrangement for generating electrical signals by means of two magnetic field-dependent resistors (i.e., field plates) each comprised of a semiconductor compound and each arranged on a ferromagnetic extension fastened on the same pole of a permanent magnet, a particularly configured control element comprised of magnetically soft material is provided for varying the resistance values of the resistors through flux displacement. More particularly, the control element is shaped in the form of a spiral and is arranged on a nonmagnetic rotatable control cam in such a manner that, when the control cam rotates, a part of the spiral control element permeated by the flux of the magnet shifts from the one field plate to the other field plate. Such rotation thus changes the resistance values of the plates, thereby providing a change of the output signal of the arrangement.