Optical encoding and correlation system
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United States of America Patent
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Aug 10, 1993
Grant Date -
N/A
app pub date -
Mar 30, 1992
filing date -
Mar 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical correlator system for encoding a complex optical image onto a erent beam of light such as a laser and comparing it with a reference complex image. One embodiment of the invention encodes phase only information of the complex image onto the coherent beam of light by means of a liquid crystal television receiver. The light beam is passed through the liquid crystal television receiver, whose pixels are manipulated to provide phase information concerning the image. A second embodiment of the invention encodes both phase and amplitude components of a complex image onto the coherent beam of light such as a laser beam. Either or both encodings are utilized in the optical correlator system.
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