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ARITHMETIC OPERATION DEVICE AND ARITHMETIC OPERATION SYSTEM 新技術説明会

Foreign code F210010352
File No. 08792-WO
Posted date 2021年4月7日
Country 世界知的所有権機関(WIPO)
International application number 2019JP014330
International publication number WO 2019189878
Date of international filing 平成31年3月29日(2019.3.29)
Date of international publication 令和元年10月3日(2019.10.3)
Priority data
  • 特願2018-069568 (2018.3.30) JP
Title ARITHMETIC OPERATION DEVICE AND ARITHMETIC OPERATION SYSTEM 新技術説明会
Abstract Provided is an arithmetic operation device provided with: a multiplication section in which a plurality of multipliers are divided in units of one or more multipliers in accordance with an arithmetic operation accuracy mode and allocated to one or more groups, and in each of the groups, each multiplier multiplies an individual multiplier factor within at least a partial digit range of a multiplier factor for the group by an individual multiplicand within at least a partial digit range of a multiplicand for the group in accordance with the arithmetic operation accuracy mode; and an addition section in which a plurality of adders are divided in units of one or more adders in accordance with the arithmetic operation accuracy mode and allocated to one or more groups, and the one or more adders allocated to each of the groups add together the multiplication results of the respective multipliers allocated to the group, and output a product of the multiplier factors and the multiplicands.
Outline of related art and contending technology BACKGROUND ART
Conventionally, the double-precision multiplication device has been known. For example, Patent Document 1 of the computing device, one of the 2 multiplier 12, and 13, and ALU37, accumulator 24, and a 25. ALU37 An input section of the, multiplier 12, and the result of multiplication of 13, accumulator 24, given the output of 25.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • RIKEN
  • Inventor
  • MAKINO Junichiro
  • NITADORI Keigo
  • TSUBOUCHI Miyuki
IPC(International Patent Classification)
Reference ( R and D project ) 計算科学研究センター フラッグシップ2020プロジェクト

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