Bi-stable image storage apparatus

Details Bi-stable image storage apparatus Bi-stable image storage apparatus

1974-11-04

1976-03-02

Webster, Robert J.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340173LT, 250213R, 332 751, G11C 1142, G02F 113

Patent

active

039414558

ABSTRACT:
Bi-stable image storage apparatus for storing, interrogating, and erasing two-dimensional binary images represented by arrays of light and dark areas. The storage apparatus comprises a pair of image amplifiers, preferably, inverting amplifiers, coupled together into a closed loop optical circuit such that the output of one device will be read into the other device. As long as the gain of the circuit is greater than one the circuit will drive itself to saturation and store an image optically applied thereon. The system provides a very inexpensive circuit for storing images, and can be used in a wide variety of processing and display applications.

REFERENCES:
patent: 2131185 (1938-09-01), Knoll
patent: 3121796 (1864-02-01), Reed
patent: 3154687 (1964-10-01), Perl et al.

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