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:
Sep. 01, 1992
Filed:
Nov. 30, 1990
Gerardus H Somers, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A read head arrangement comprising n first read heads (h.sub.a.1, . . . , h.sub.a.n) and n second read heads (h.sub.b.1, . . . , h.sub.b.n) of the magnetoresistance type, n transistors (Tr.sub.1, . . . , Tr.sub.n) and switching means (S), where n is an integer greater than two. The first main electrode (collector) of a transistor (Tr.sub.i) is coupled to an i-th output (U.sub.i) of the arrangement. The second main electrode (emitter) of the transistor (Tr.sub.i) is coupled to a first terminal (t.sub.1) of a first read head (h.sub.a.i) and a second read head (h.sub.b.i). The second terminal (t.sub.2) of the first read head (h.sub.a.1) is coupled to a first terminal (a) of the switching means (S). The second terminal (t.sub.2) of the second read head (h.sub.b.1) is coupled to a second terminal (b) of the switching means (S), of which a third terminal (c) is coupled to a point of constant potential (earth), while i ranges from 1 to n.