Amplitude to phase conversion logic

Details Amplitude to phase conversion logic Amplitude to phase conversion logic

1995-03-27

1995-11-14

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250214LS, 359 15, 359108, 364713, 364807, G06G 700, G06E 104

Patent

active

054669251

ABSTRACT:
A means, method and apparatus is disclosed for providing at least one phase-modulated output from at least one amplitude-modulated input, which is used to produced the logical AND and OR functions having phase modulated outputs. A constant level bias beam set of at least one wavelength of any wave-type energy is superimposed on at least one modulated input beam set having an energy sum out of phase with the bias beam set at at least one location. Energy in the resulting interference image is separated from said at least one location to produce at least one output. Input levels determine the function performed. When the input energy sum is greater than the bias beam set, the output changes phase. When they are equal, the output is zero, which is also used to produce the NAND function.

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patent: 5239173 (1993-08-01), Yang

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