Signal processing techniques based upon optical devices

Details Signal processing techniques based upon optical devices Signal processing techniques based upon optical devices

1995-03-24

1997-11-18

Trammell, James P.

Boots, shoes, and leggings

348571, 348405, 348417, 348418, 358482, 358483, 358471, 359246, G02B 0000

Patent

active

056894414

ABSTRACT:
A signal processing system processes an input signal in real time. The system includes a light valve array for selectively attenuating light incident thereupon in response to electronic control signals, a light source for providing illumination, a light-sensitive array for producing electronic output signals representing a processed version of the input signal in response to light incident thereupon, and control circuitry for generating and applying electronic control signals to the light valve array in response to the input signal. The electronic control signals are generated from the input signal and are adapted for implementing an arbitrarily-selected signal processing operation. The light valve array is situated between the light source and the light-sensitive array, such that the light source is selectively attenuated by the light valve array, and such that the selectively attenuated light is incident upon the light-sensitive array.

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