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:
Apr. 24, 1979
Filed:
Dec. 29, 1977
Applicant:
Inventor:
Ernest J Torok, Saint Paul, MN (US);
Assignee:
Sperry Rand Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365172 ; 365 87 ;
Abstract
An apparatus for and a method of storing binary data in a thin ferromagnetic film strip as the presence or absence of Bloch-lines without the presence of cross-ties. The apparatus utilizes a serrated strip of isotropic magnetic material that is formed in the shape of a series of contiguous disks. Each pair of contiguous disks is coupled by a narrow section of magnetic material that functions as a 'door' between adjacent disks through which the Bloch-line defining datum bit may be propagated when subjected to the appropriate drive fields.