Optical latch and method of latching data using same

Details Optical latch and method of latching data using same Optical latch and method of latching data using same

1989-09-29

1990-10-23

Healy, Brian

Boots, shoes, and leggings

350 9611, 350 9614, 350 9615, 350320, 364713, 36471501, 365 64, 365 76, 307409, G02B 610, G06E 104, G11C 2100, H03K 1780

Patent

active

049646877

ABSTRACT:
An optical latch includes first and second optical switches arranged in series. An input signal is received in the first optical switch and is passed through to the second optical switch. The second optical switch latches-up to this received signal. Then the first optical switch is disabled to isolate the second optical switch from inputs to the first optical switch. Feedback lines from the output of the second optical switch to the input of the second optical switch ensure that the second optical switch remains latched. Switching signals are provided at appropriate timing to ensure correct operation of the optical latch.

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S. F. Habiby et al., "Optical Residuce Addition and Storage Units Using a Hughes Liquid Crystal Light Valve", NASA Conference (Aug. 1983), Publication 2302, Optical Information Processing for Aerospace Applications II, 1984, pp. 215-239.
Akmenkalns et al., "Optical Controlled Latch Circuit", I.B.M. Tech. Discl. Bull., vol. 3, No. 3, 8/60, p. 38.

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