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. 28, 1992
Filed:
Sep. 05, 1990
Paul Zwicky, Dielsdorf, CH;
Matthias Zbinden, Regensdorf, CH;
Willi Studer AG, Regensdorf, CH;
Abstract
In order to be able to improve the level or the dynamic ratio and the signal-to-noise ratio of a magnetic storage medium for analog signal recording, with the distortion factor remaining the same, certain rules are formulated for the quality of the magnetic particles in the storage medium. According to these rules the particles shall be of at least two kinds, all particles of one kind having the same structure. Furthermore, the distribution curve (9) which specifies how many particles possess a certain coercive field strength shall be broadened in the range (20) of the most frequent coercive field strength (H.sub.c9), as compared to a Gaussian distribution.