| Presentation | 2015-11-21 A bit serial multiply and accumulator with negative number operation Daichi Okamoto, Masafumi Kondo, Yoshihiro Sejima, Yoichiro Sato, Tomoyuki Yokogawa, Kazutami Arimoto, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, digital hearing aids with the high functionality of digital signal processor (DSP) become widely used, and thus its battery life is limited to only few days by a heavy load on its DSP. In order to solve this problem, we have provided a low area and power saving bit serial multiplier by using a ring oscillator. However, since the multiplier does not support the negative number operation, it cannot be applied to the multiply and accumulator used by digital filter. Therefore, we propose a multiplier capable of complement by the two's complement representation. We designed the bit serial multiply and accumulator and exhibited the simulation results that showed the intended behavior. We also showed the effectiveness of the proposed multiply and accumulator through power consumption analysis on FPGA. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | digital hearing aid / bit serial / two's complement / DSP / ring oscillator |
| Paper # | CAS2015-58,MSS2015-32 |
| Date of Issue | 2015-11-13 (CAS, MSS) |
| Conference Information | |
| Committee | MSS / CAS / IPSJ-AL |
|---|---|
| Conference Date | 2015/11/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ibusuki CityHall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Satoshi Yamane(Kanazawa Univ.) / Satoshi Tanaka(Murata) |
| Vice Chair | Morikazu Nakamura(Univ. of Ryukyus) / Toshihiko Takahashi(Niigata Univ.) |
| Secretary | Morikazu Nakamura(Yamaguchi Univ.) / Toshihiko Takahashi(Toshiba) / (Hitachi) |
| Assistant | Hideki Kinjo(Okinawa Univ.) / Toshihiro Tachibana(Shonan Inst. of Tech.) / Yohei Nakamura(Hitachi) |
| Paper Information | |
| Registration To | Technical Committee on Mathematical Systems Science and its applications / Technical Committee on Circuits and Systems / Special Interest Group on Algorithms |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A bit serial multiply and accumulator with negative number operation |
| Sub Title (in English) | |
| Keyword(1) | digital hearing aid |
| Keyword(2) | bit serial |
| Keyword(3) | two's complement |
| Keyword(4) | DSP |
| Keyword(5) | ring oscillator |
| 1st Author's Name | Daichi Okamoto |
| 1st Author's Affiliation | Okayama Prefectural University(Okayama Prefectural Univ.) |
| 2nd Author's Name | Masafumi Kondo |
| 2nd Author's Affiliation | Kawasaki University of Medical Welfare(Kawasaki Univ. of Medical Welfare) |
| 3rd Author's Name | Yoshihiro Sejima |
| 3rd Author's Affiliation | Okayama Prefectural University(Okayama Prefectural Univ.) |
| 4th Author's Name | Yoichiro Sato |
| 4th Author's Affiliation | Okayama Prefectural University(Okayama Prefectural Univ.) |
| 5th Author's Name | Tomoyuki Yokogawa |
| 5th Author's Affiliation | Okayama Prefectural University(Okayama Prefectural Univ.) |
| 6th Author's Name | Kazutami Arimoto |
| 6th Author's Affiliation | Okayama Prefectural University(Okayama Prefectural Univ.) |
| Date | 2015-11-21 |
| Paper # | CAS2015-58,MSS2015-32 |
| Volume (vol) | vol.115 |
| Number (no) | CAS-315,MSS-316 |
| Page | pp.pp.115-120(CAS), pp.115-120(MSS), |
| #Pages | 6 |
| Date of Issue | 2015-11-13 (CAS, MSS) |