Boots – shoes – and leggings
Patent
1984-04-12
1986-01-28
Punter, William H.
Boots, shoes, and leggings
364822, G02F 133, G06G 900
Patent
active
045667608
ABSTRACT:
A device for processing signals to obtain a multi-product, time integrated, correlated output signal. A laser light beam is expanded and shaped into a sheet beam which is directed across the surface of an acousto-optic medium. Four acoustic transducers are disposed on the acousto-optic medium, two at each end of the medium. Each acoustic transducer is supplied with a signal to be propagated on the surface of the acousto-optic medium. The first two signals diffract the sheet beam to produce a first, product diffracted beam of light containing the product of the first two signals. The second two signals diffract the sheet beam to produce a second product diffracted beam of light containing the product of the second two signals. The two product diffracted beams are rotated so that they are orthogonal to each other, and then combined. A time integrating photodetecting means is disposed in the path of the combined beam for generating a multi-product, time integrated, correlated output signal.
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Berg et al., "A New Single AO Element Two-Dimensional Signal Processor", er Presented at the IEEE Ultrasonics Symposium, 11-2-83, Atlanta, GA.
Abramovitz Irwin J.
Berg Norman J.
Casseday Michael W.
Elbaum Saul
Lane Anthony T.
Lupuloff Harry
Punter William H.
The United States of America as represented by the Secretary of
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