Presentation 2018-12-07
An Efficient Multiplier Employing Time-Encoded Stochastic Computing Circuit
Tati Erlina, Renyuan Zhang, Yasuhiko Nakashima,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) A compact multiplier circuit is designed by time-encoded stochastic computing technology. The operands of multiplication are represented by the cycle duty of pulse signals. Using the Neuron-MOS technology, an efficiently tunable pulse-generator is proposed without digital pulse-width-modulation (PWM). The multiplication of two time-encoded stochastic numbers is obtained through a simple logic gate. The proof-of-concept multiplier is designed in a 0.18um CMOS technology. The total amount of MOS transistors is reduced to 3% of the traditional time-encoded stochastic calculator. From the circuit simulation results, the calculation accuracy of 85% is achieved; and the energy for one single operation is slightly reduced from the existing works with 5 x speed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Approximate Computing / Time-encoded Stochastic / Neuron-MOS
Paper # CPSY2018-41
Date of Issue 2018-11-28 (CPSY)

Conference Information
Committee VLD / DC / CPSY / RECONF / CPM / ICD / IE / IPSJ-SLDM / IPSJ-EMB / IPSJ-ARC
Conference Date 2018/12/5(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Satellite Campus Hiroshima
Topics (in Japanese) (See Japanese page)
Topics (in English) Design Gaia 2018 -New Field of VLSI Design-
Chair Noriyuki Minegishi(Mitsubishi Electric) / Satoshi Fukumoto(Tokyo Metropolitan Univ.) / Koji Nakano(Hiroshima Univ.) / Masato Motomura(Hokkaido Univ.) / Fumihiko Hirose(Yamagata Univ.) / Hideto Hidaka(Renesas) / Takayuki Hamamoto(Tokyo Univ. of Science) / Yutaka Tamiya(Fujitsu Laboratories) / 渡辺 晴美(東海大) / 井上 弘士(九大)
Vice Chair Nozomu Togawa(Waseda Univ.) / Hiroshi Takahashi(Ehime Univ.) / Hidetsugu Irie(Univ. of Tokyo) / Takashi Miyoshi(Fujitsu) / Yuichiro Shibata(Nagasaki Univ.) / Kentaro Sano(RIKEN) / Mayumi Takeyama(Kitami Inst. of Tech.) / Makoto Nagata(Kobe Univ.) / Hideaki Kimata(NTT) / Kazuya Kodama(NII)
Secretary Nozomu Togawa(NTT) / Hiroshi Takahashi(Aizu Univ.) / Hidetsugu Irie(Tokyo Inst. of Tech.) / Takashi Miyoshi(Nihon Univ.) / Yuichiro Shibata(Utsunomiya Univ.) / Kentaro Sano(Hokkaido Univ.) / Mayumi Takeyama(Hiroshima City Univ.) / Makoto Nagata(e-trees.Japan) / Hideaki Kimata(Toyohashi Univ. of Tech.) / Kazuya Kodama(NTT) / (Panasonic) / (Tohoku Univ.) / (KDDI Research)
Assistant / / Yasuaki Ito(Hiroshima Univ.) / Tomoaki Tsumura(Nagoya Inst. of Tech.) / Yuuki Kobayashi(NEC) / Hiroki Nakahara(Tokyo Inst. of Tech.) / Yasuo Kimura(Tokyo Univ. of Tech.) / Hideki Nakazawa(Hirosaki Univ.) / Tomoaki Terasako(Ehime Univ.) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Masatoshi Tsuge(Socionext) / Tetsuya Hirose(Kobe Univ.) / Kazuya Hayase(NTT) / Yasutaka Matsuo(NHK) / Hiroe Iwasaki(NTT)

Paper Information
Registration To Technical Committee on VLSI Design Technologies / Technical Committee on Dependable Computing / Technical Committee on Computer Systems / Technical Committee on Reconfigurable Systems / Technical Committee on Component Parts and Materials / Technical Committee on Integrated Circuits and Devices / Technical Committee on Image Engineering / Special Interest Group on System and LSI Design Methodology / Special Interest Group on Embedded Systems / Special Interest Group on System Architecture
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Efficient Multiplier Employing Time-Encoded Stochastic Computing Circuit
Sub Title (in English)
Keyword(1) Approximate Computing
Keyword(2) Time-encoded Stochastic
Keyword(3) Neuron-MOS
1st Author's Name Tati Erlina
1st Author's Affiliation Nara Institute of Science and Technology(NAIST)
2nd Author's Name Renyuan Zhang
2nd Author's Affiliation Nara Institute of Science and Technology(NAIST)
3rd Author's Name Yasuhiko Nakashima
3rd Author's Affiliation Nara Institute of Science and Technology(NAIST)
Date 2018-12-07
Paper # CPSY2018-41
Volume (vol) vol.118
Number (no) CPSY-339
Page pp.pp.47-52(CPSY),
#Pages 6
Date of Issue 2018-11-28 (CPSY)