• Patent Title: Product-sum operation device, logical calculation device, neuromorphic device, and multiply-accumulate method
  • Application No.: US17281021
    Application Date: 2018-10-11
  • Publication No.: US12001811B2
    Publication Date: 2024-06-04
  • Inventor: Kuniyasu ItoTatsuo Shibata
  • Applicant: TDK CORPORATION
  • Applicant Address: JP Tokyo
  • Assignee: TDK CORPORATION
  • Current Assignee: TDK CORPORATION
  • Current Assignee Address: JP Tokyo
  • Agency: Oliff PLC
  • International Application: PCT/JP2018/037962 2018.10.11
  • International Announcement: WO2020/075272A 2020.04.16
  • Date entered country: 2021-03-29
  • Main IPC: G06F7/544
  • IPC: G06F7/544 G06G7/16 G06N3/065
Product-sum operation device, logical calculation device, neuromorphic device, and multiply-accumulate method
Abstract:
A multiply-accumulate calculation device includes: multiple calculation units which generates output signals by multiplying an input signal corresponding to an input value and having a rising part, a signal part, and a falling part by a weight, and output the output signals; an accumulate calculation unit configured to calculate a sum of the output signals output from the plurality of multiple calculation units; and a correction unit configured to execute correction processing for correcting the sum of the output signals on the basis of a correction value including at least one of a first value incorporated into the sum by a current flowing into variable resistors of the multiple calculation units due to the rising part of the input signal, and a second value incorporated into the sum by a current flowing into the variable resistors of the multiple calculation units due to the falling part of the input signal.
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