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| Presentation | 2015-11-21 11:15 A bit serial multiply and accumulator with negative number operation Daichi Okamoto (Okayama Prefectural Univ.), Masafumi Kondo (Kawasaki Univ. of Medical Welfare), Yoshihiro Sejima, Yoichiro Sato, Tomoyuki Yokogawa, Kazutami Arimoto (Okayama Prefectural Univ.)  CAS2015-58 MSS2015-32 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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) |
| (in English) | digital hearing aid / bit serial / two's complement / DSP / ring oscillator / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 315, CAS2015-58, pp. 115-120, Nov. 2015. | |
| Paper # | CAS2015-58 | |
| Date of Issue | 2015-11-13 (CAS, MSS) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | CAS2015-58 MSS2015-32 |
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| Conference Information | |
| Committee | MSS CAS IPSJ-AL |
| Conference Date | 2015-11-20 - 2015-11-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ibusuki CityHall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | CAS |
| Conference Code | 2015-11-MSS-CAS-AL |
| Language | Japanese |
| 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 |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 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.) |
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| Speaker | Author-1 |
| Date Time | 2015-11-21 11:15:00 |
| Presentation Time | 25 minutes |
| Registration for | CAS |
| Paper # | CAS2015-58, MSS2015-32 |
| Volume (vol) | vol.115 |
| Number (no) | no.315(CAS), no.316(MSS) |
| Page | pp.115-120 |
| #Pages | 6 |
| Date of Issue | 2015-11-13 (CAS, MSS) |
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