Title:
THRESHOLD-OPERATED TYPE SWITCH MEMORY
Document Type and Number:
Japanese Patent JP3521518
Kind Code:
B2
Abstract:
PURPOSE: To provide a switch memory which realizes the synapse plasticity based on a biochemical process approximating synapses of living body by storing only signals having intensities higher than a certain value out of transmitted signals.
CONSTITUTION: When a signal W is inputted to a memory cell 1 from the outside through a signal input part 3, an activation factor is generated, and a first material is activated by this factor, and when signal input is terminated, the activating action of the activation factor disappears, and the first material is inactivated by a second material. Convergence to a value other than 0 or 0 is brought about with time in accordance with whether the degree of activation of the first material just after the end of signal input exceeds a threshold peculiar to a threshold operated type storage solution S or not. The reaction system state for convergence to a value other than 0 is defined as the switch on state, and that for convergence to 0 is defined as the switch off state, and they are stored in distinction from each other, and thus, this switch memory is operated with the threshold as the reference.
Inventors:
Okamoto, Hiroshi
Ichikawa, Kazuhisa
Ichikawa, Kazuhisa
Application Number:
JP256295A
Publication Date:
April 19, 2004
Filing Date:
January 11, 1995
Export Citation:
Assignee:
FUJI XEROX CO LTD
International Classes:
G06G7/60; G06F15/18; G06N3/06; G11C11/54; (IPC1-7): G06G7/60; G11C11/54
Attorney, Agent or Firm:
中村 智廣 （外２名）
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