Patent · US Expired

Magneto-optical information storage device using photoconductive control element

US3944992A · kind A · utility

1Cited by

4References

10Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Jens-Peter Krumme · Hamburg, DE
Bernhard Hill · Hamburg, DE

Key dates

Filing date	Nov 4, 1974
Grant date	Mar 16, 1976
Priority date	—
Expiry date	Nov 4, 1994

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/09
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a device for magneto-optic memories controlled by light and/or heat in an external magnetic field, in which the magneto-optic material of the memory has a photoconductive layer which can be activated by the control beam and which can be controlled by means of electrodes provided thereon via a current or voltage source.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.