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.

Date of Patent:
Apr. 25, 2023

Filed:

Feb. 27, 2019
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventors:

Takao Marukame, Chuo, JP;

Kumiko Nomura, Shinagawa, JP;

Yoshifumi Nishi, Yokohama, JP;

Assignee:

KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/02 (2006.01); H01L 29/00 (2006.01); H03K 19/00 (2006.01); G06N 3/048 (2023.01); G06N 3/08 (2023.01); G06N 3/049 (2023.01); G06N 3/063 (2023.01);
U.S. Cl.
CPC ...
G06N 3/048 (2023.01); G06N 3/049 (2013.01); G06N 3/063 (2013.01); G06N 3/08 (2013.01); H03K 3/02 (2013.01); H01L 29/00 (2013.01); H03K 19/00 (2013.01);
Abstract

According to an embodiment, a synapse circuit includes: a buffer that changes an output signal to a second logical value at a timing when an input signal exceeds a first threshold level, in a case where the output signal has a first logical value in a first mode, and changes the output signal to the second logical value at a timing when the input signal exceeds a reference level lower than the first threshold level, in a case where the output signal has the first logical value in a second mode; an adjusting unit that adjusts the first threshold level depending on a stored coefficient; and a mode switching unit that operates the buffer in the first mode during a period in which an acquired spike is not generated, and operates the buffer in the second mode during a period in which the spike is generated.


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