Accession Number : AD0164092

Title :   Nondestructive Readout Thin Film Memory Device and Method Therefor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Belson,Henry S. ; DeSavage,Bernard F. ; Tebble,Robert S.

Report Date : 17 OCT 1972

Pagination or Media Count : 7

Abstract : The patent concerns a thin film material having a rectangular hysteresis characteristic along both easy and hard axes. It has a small d.c. biasing field applied at a small angle to the easy axis, producing a triangular hysteresis curve when observed along an axis perpendicular to the axis of the d.c. biasing field. The two resulting stable states are of greatly different permeability, thus enabling either a.c. or pulsed d.c. nondestructive readout.

Descriptors :   (*Thin film storage devices, *Patents), Magnetic materials, Hysteresis

Distribution Statement : APPROVED FOR PUBLIC RELEASE