Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1982-03-15
1984-11-13
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
350 9615, 367140, G02B 514
Patent
active
044828055
ABSTRACT:
A matrix multiplier system incorporating an integrated fiber optic coupling array in combination with an arrangement for individually modulating the signals on the respective optical fiber transmission lines to develop the matrix multiplication. Each of the individual couplers accomplishes the coupling of an input signal into a bi-directional fiber optic transmission line with high efficiency and unilateral coupling effect. The signal thus coupled into the bi-directional transmission line is reflected back to the coupler output after multiplication by the modulating vector component for the individual coupler element. Because of the fabrication of a large number of identical fiber optic couplers in a compact, integral array and the manner in which the light signals can be modulated, the matrix multiplier system is extremely effective in pattern recognition, signal discrimination, selected signal enhancement, and the like.
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Bissell Henry M.
Brophy J. J.
General Dynamics Pomona Division
Johnson Edward B.
Nelms David C.
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