The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 1994
Filed:
Dec. 11, 1992
Toshiyuki Furuta, Yokohama, JP;
Hiroyuki Horiguchi, Yokohama, JP;
Hirotoshi Eguchi, Yokohama, JP;
Atsuo Hashimoto, Nishinomiya, JP;
Sugitaka Oteki, Minoo, JP;
Toshihiro Tsukagoshi, Itami, JP;
Satoshi Otsuki, Nishinomiya, JP;
Eiki Aono, Minoo, JP;
Shuji Motomura, Yokohama, JP;
Takahiro Watanabe, Sagamihara, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A neuron unit processes a plurality of binary input signals and outputs a neuron output signal which is indicative of a result of the processing. The neuron unit is provided with a plurality of first gates respectively for carrying out a logical operation on a binary input signal and a weighting coefficient, a second gate for carrying out a logical operation on an excitatory output signal of each of the first gates, a third gate for carrying out a logic operation on an inhibitory output signal of each of the first gates, a fourth gate for synthesizing output signals of the second and third gates and outputting the neuron output signal, and a generating circuit for generating the weighting coefficients which are supplied to each of the first gates. The generating circuit for generating one weighting coefficient includes a random number generator for generating random numbers, and a comparator for comparing each random number r with a predetermined value q and for outputting a pulse signal having first and second values depending on whether each random number r is such that r.ltoreq.q or r>q, and each weighting coefficient is described by a pulse density.