Addressable optical computer and filter

Details Addressable optical computer and filter Addressable optical computer and filter

1977-12-15

1980-02-05

Corbin, John K.

Boots, shoes, and leggings

350 362, 350 370, 364820, 364822, 365215, G06G 900

Patent

active

041870000

ABSTRACT:
The disclosure describes method and apparatus for optically computing the impulse response h, transfer function H, coherence function .gamma., impulse coherence .GAMMA., product S.sub.y H.sub.r, division 1/S.sub.x, cross-correlation R.sub.yx, cross-power spectrum G.sub.yx, complex conjugate S.sub.x.sup.*, and convolution y*x of signals y and x in real time. The method comprises the steps of computing the mathematical function of a given parameter. The apparatus of the invention comprises the realization of optical elements for performing the tasks of the method.

REFERENCES:
patent: 3510223 (1970-05-01), Lohmann
patent: 3542452 (1970-11-01), Gerritsen et al.
patent: 3555455 (1971-01-01), Richards et al.
patent: 3572878 (1971-03-01), Sun Lu
patent: 4097749 (1978-06-01), Gardner
Roth, "Effective Measurements Using Digital Signal Analysis," IEEE Spectrum, vol. 8, No. 4, Apr. 1971, pp. 62-70.
Stroke, "Optical Computing," IEEE Spectrum, vol. 9, No. 12, Dec. 1972, pp. 24-41.
Wai-Hon Lee et al., "Matched Filter Optical Processor," Applied Optics, vol. 13, No. 4, Apr. 1974, pp. 925-930.

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