Neural network using photoelectric substance
First Claim
1. A neural network comprising a plurality of neurons, synapses and switches, which synapses comprise a substance X which can be transferred by illuminating it at a given wavelength from stable State A to stable State B, which change is reversible, and which substance can be transferred from State A to State C which differs from State B, which is also reversible, each such change providing an electrically measurable pulse, said components being interconnected for data storage and retrieval in parallel or serially, wherein said data storage is achieved in individual synapses by selectively illuminating said substance X at said given wavelength to thereby change part of said substance X to stable State B.
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Abstract
A neural network, and a method of storing information and retrieving it by such network. The network comprises neurons, synapses and switches, and when required also rectifying means. The network is based on a substance which undergoes a reversible change from stable state A to stable state B, and this substance can also be changed from state A to another state C, which change is also reversible, where each change provides a measurable electrical pulse. The change of state is brought about by means of illumination for a predetermined period of time at a certain wavelength, it being possible to convert a desired part of the substance from one state to the other.
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Citations
21 Claims
- 1. A neural network comprising a plurality of neurons, synapses and switches, which synapses comprise a substance X which can be transferred by illuminating it at a given wavelength from stable State A to stable State B, which change is reversible, and which substance can be transferred from State A to State C which differs from State B, which is also reversible, each such change providing an electrically measurable pulse, said components being interconnected for data storage and retrieval in parallel or serially, wherein said data storage is achieved in individual synapses by selectively illuminating said substance X at said given wavelength to thereby change part of said substance X to stable State B.
- 11. A method of storing information in an artificial neural network comprising neurons, synapses, switching an rectifying means, which contains synapses containing a substance X which exists in a number of energy states, which comprises irradiating any of the synapses to convert part or all of the substance X to stable state M, converting the remaining part of X, if such exists to state K and reverting that part from K to the initial state, and measuring the electrical signal of the conversion to K and back, erasure of the information in the synapse being effected by reversing substance from M to the initial state.
Specification