JPH05233859

PURPOSE:To provide the optical neural network system which can considerably shorten time required for a learning processing. CONSTITUTION:In this optical neural network system consisting of an input part to generate plural beams corresponding to plural input signals, an intermediate part to execute...

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Bibliographic Details
Main Authors YOSHIDA SATORU, KAIZU KATSUMI, SONE TADASHI
Format Patent
LanguageEnglish
Published 10.09.1993
Edition5
Subjects
ANALOGUE COMPUTERS
CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
OPTICAL COMPUTING DEVICES
PHYSICS
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Summary:PURPOSE:To provide the optical neural network system which can considerably shorten time required for a learning processing. CONSTITUTION:In this optical neural network system consisting of an input part to generate plural beams corresponding to plural input signals, an intermediate part to execute prescribed arithmetic by changing the transmissivity of light corresponding to the plural beams from the input part, and an output part to convert the plural beams transmitted through the intermediate part to plural output signals, the intermediate part is constituted by using a spatial optical modulation element array 6 composed of plural spatial optical modulation elements to set error between an output signal and a teaching signal corresponding to the plural beams from the input part, and a weight setting element array 7 consisting of plural weight setting elements provided with photodetection parts to photodetect one part of light transmitted through the spatial optical modulation element array 6 and to convert it to an electric signal, calculation parts to calculate weight based on the electric signal, and spatial optical modulation parts to set the calculated weight as the transmissivity of light.
Bibliography:Application Number: JP19920036650