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Analog Digital Mixed-Signal Integrated Circuit Architecture based on Integer Theory

Research Project

Project/Area Number 21K04190
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionGunma University

Principal Investigator

Kobayashi Haruo  群馬大学, その他部局等, 名誉教授 (20292625)

Co-Investigator(Kenkyū-buntansha) 桑名 杏奈  和洋女子大学, 看護学部, 准教授 (00624628)
Project Period (FY) 2021-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsAD/DA変換器 / 波形サンプリング / 時間デジタル変換回路 / 整数論 / 黄金比・貴金属比 / 剰余系 / LSIテスト / LSIテスト技術 / アナログデジタル混載集積回路 / AD変換器 / DA変換器 / 時間デジタイザ回路 / AD変換器テスト技術 / 波形サンプリング技術 / アナログ信号処理技術 / ダイナミックマッチング / AD変換器の評価技術 / 非同期逐次比較AD変換器 / 緩和DA変換器 / アナログ回路 / デジタル回路 / 集積回路 / 古典数学
Outline of Research at the Start

整数論に示されているよう整数には面白い性質がたくさんある。しかしアナログ・デジタル変換回路(AD変換器)やデジタル・アナログ変換回路(DA変換器)等のアナログ・デジタル混載回路の設計ではそれを積極的に利用した方法論はほとんどない。整数の面白い性質を積極的に利用してアナログ・デジタル混載回路の新規アーキテクチャおよびその有効なテスト手法を研究する。半分がデジタル回路であるアナログ・デジタル混載回路の設計とテスト技術に整数の面白い性質を活用できる可能性がある。勘と経験の世界であったこの分野の設計に整数論を理論的・体系的に適用し、高性能な回路構成を考案していく。

Outline of Final Research Achievements

We have developed algorithms for the design and testing of mixed-signal circuits, including waveform sampling circuits, analog-to-digital converters (ADC), digital-to-analog converters (DAC), and time-to-digital converter circuits (TDC), based on number theory. The relationship between sampling frequency and input frequency for efficient waveform acquisition has been found to correspond to the golden ratio and noble metal ratio. Utilizing this finding, efficient LSI testing methods such as ADC testing and self-calibration techniques for TDC using the histogram method have been developed. We developed a novel method of residue sampling for estimating the frequency of high-frequency signals using an analog Hilbert filter and multiple low-frequency sampling circuits. Additionally, we devised a new DAC configuration based on number theory.

Academic Significance and Societal Importance of the Research Achievements

波形サンプリング回路、ADC, DAC, TDCは自然界のアナログ信号とコンピュータ内のデジタル信号間を結ぶインターフェース回路で、近年のデジタル機器で重要な電子デバイスである。より良いものを実現するためにそれらの設計や試験法は各国で競っている。しかしながらその構成・テスト法は設計者の経験に依存するところが大きい。これらの回路での新しい構成・試験アルゴリズムを数理的な理論、とくに整数論に基づいてこれらの産業競争力のある(高性能、低コスト)新しいものをいくつか導出した。

Report

(5 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (63 results)

All 2025 2024 2023 2022 2021 Other

All Journal Article (14 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 12 results,  Open Access: 13 results) Presentation (48 results) (of which Int'l Joint Research: 35 results,  Invited: 16 results) Remarks (1 results)

  • [Journal Article] 「無用の用」を扱う数学2025

    • Author(s)
      小林春夫、小川智彦
    • Journal Title

      和算ジャーナル

      Volume: 8 Pages: 54-57

    • Related Report
      2024 Annual Research Report
  • [Journal Article] How the Author's Group Came Up with Ideas in Analog/Mixed-Signal Circuit and System Area2024

    • Author(s)
      Haruo Kobayashi
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E107.A Issue: 5 Pages: 681-699

    • DOI

      10.1587/transfun.2023GCI0002

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2024-05-01
    • Related Report
      2024 Annual Research Report 2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relaxation DAC with positive and negative polarity output using high-pass filter2023

    • Author(s)
      Lengkhang Nengvang, Shogo Katayama, Anna Kuwana, Kazufumi Naganuma, Kiyoshi Sasai,    Akihisa Iikura, Akira Asao, Takuya Watanabe, Katsuaki Morishita, Haruo Kobayashi
    • Journal Title

      IEICE Electronics Express

      Volume: 20 Issue: 4 Pages: 20220536-20220536

    • DOI

      10.1587/elex.20.20220536

    • ISSN
      1349-2543
    • Year and Date
      2023-02-25
    • Related Report
      2023 Research-status Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Low distortion sine wave generator with simple harmonics cancellation circuit and filter for analog device testing2023

    • Author(s)
      Shogo Katayama, Takayuki Nakatani, Daisuke Iimori, Misaki Takagi, Yujie Zhao, Anna Kuwana,    Keno Sato, Takashi Ishida, Toshiyuki Okamoto, Tamotsu Ichikawa, Kentaroh Katoh, Kazumi Hatayama, Haruo Kobayashi
    • Journal Title

      IEICE Electronics Express

      Volume: 20 Issue: 1 Pages: 20220470-20220470

    • DOI

      10.1587/elex.19.20220470

    • ISSN
      1349-2543
    • Year and Date
      2023-01-10
    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Segmented DAC Unit Cell Selection Algorithm and Layout/Routing Based on Classical Mathematics2023

    • Author(s)
      Dan Yao, Xueyan Bai, Anna Kuwana, Kazuyuki Kawauchi, Yujie Zhao, Jianglin Wei, Shogo Katayama, Masashi Higashino, Haruo Kobayashi
    • Journal Title

      Journal of Mechanical and Electrical Intelligent System

      Volume: 6 Pages: 13-30

    • Related Report
      2023 Research-status Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Unit cell mismatch scrambling method for high-resolution unary DAC based on virtual 3D layout2022

    • Author(s)
      Dan Yao, Xuanyan Bai, Shogo Katayama, Anna Kuwana, Kazuyuki Kawauchi, Haruo Kobayashi,    Kouji Hirai, Akira Suzuki, Satoshi Yamada, Tomoyuki Kato, Ritsuko Kitakoga, Takeshi Shimamura, Gopal Adhikari, Nobuto Ono, Kazuhiro Miura, Shigeya Yamaguchi
    • Journal Title

      IEICE Electronics Express

      Volume: 19 Issue: 24 Pages: 20220430-20220430

    • DOI

      10.1587/elex.19.20220430

    • ISSN
      1349-2543
    • Year and Date
      2022-12-25
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Asynchronous capacitive SAR ADC based on Hopfield network2022

    • Author(s)
      Xueyan Bai, Shogo Katayama, Dan Yao, Anna Kuwana, Zifei Xu, Haruo Kobayashi
    • Journal Title

      IEICE Electronics Express

      Volume: 19 Issue: 18 Pages: 20220276-20220276

    • DOI

      10.1587/elex.19.20220276

    • ISSN
      1349-2543
    • Year and Date
      2022-09-25
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Self-Calibration of Two Reference Voltages Ratio For Two-Step Incremental Delta-Sigma ADC2022

    • Author(s)
      Lengkhang Nengvang, Shogo Katayama, Jianglin Wei, Lei Sha, Tri Minh Tran, Anna Kuwana,    Kazufumi Naganuma, Kiyoshi Sasai, Junichi Saito, Katsuaki Morishita, Haruo Kobayashi
    • Journal Title

      Journal of Mechanical and Electrical Intelligent System

      Volume: 5 Pages: 7-19

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Charge Domain Folding ADC for Multi-bit ΔΣ AD Modulator2022

    • Author(s)
      Xiongyan Li, Tianrui Feng, Lengkhang Nengvang, Haijun Lin, Shogo Katayama, Jianglin Wei,    Anna Kuwana, Kazufumi Naganuma, Kiyoshi Sasai, Junichi Saito, Katsuaki Morishita, Haruo Kobayashi
    • Journal Title

      Journal of Technology and Social Science

      Volume: 2 Pages: 27-37

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Derivation of digital-to-analog converter architectures based on number theory2022

    • Author(s)
      Xueyan Bai, Dan Yao, Yuanyang Du, Minh Tri Tran, Shogo Katayama, Jianglin Wei, Yujie Zhao, Anna Kuwana, Haruo Kobayashi, Kazuyoshi Kubo
    • Journal Title

      Journal of Pure and Applied Mathematics

      Volume: 6 Pages: 1-10

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study of analog-to-digital mixed integrated circuit configuration using number theorys2022

    • Author(s)
      Haruo Kobayashi, Anna Kuwana
    • Journal Title

      Science Impact Ltd, Impact

      Volume: 2022 Issue: 3 Pages: 9-13

    • DOI

      10.21820/23987073.2022.3.9

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Journal Article] Revisit to Histogram Method for ADC Linearity Test: Examination of Input Signal and Ratio of Input and Sampling Frequencies2022

    • Author(s)
      Yujie Zhao, Kentaroh Katoh, Anna Kuwana, Shogo Katayama, Jianglin Wei, Haruo Kobayashi, Takayuki Nakatani, Kazumi Hatayama, Keno Sato, Takashi Ishida, Toshiyuki Okamoto, Tamotsu Ichikawa
    • Journal Title

      Journal of Electronic Testing: Theory and Applications, Springer

      Volume: 8 Issue: 1 Pages: 1-100

    • DOI

      10.1007/s10836-022-05988-y

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Metallic Ratio Equivalent-Time Sampling and Application to TDC Linearity Calibration2022

    • Author(s)
      Shuhei Yamamoto, Yuto Sasaki, Yujie Zhao, Anna Kuwana, Kentaroh Katoh, Zheming Zhang, Jianglin Wei,    Tri Minh Tran, Shogo Katayama, Keno Sato, Takashi Ishida, Toshiyuki Okamoto, Tamotsu Ichikawa,Takayuki Nakatani, Kazumi Hatayama, Haruo Kobayashi
    • Journal Title

      IEEE Transactions on Device and Materials Reliability

      Volume: 1 Issue: 2 Pages: 1-100

    • DOI

      10.1109/tdmr.2022.3159741

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Frequency Estimation Sampling Circuit with Hilbert Filter and Proactive Usage of Aliasing Phenomenon2021

    • Author(s)
      Yudai Abe, Shogo Katayama, Anna Kuwana, Haruo Kobayashi
    • Journal Title

      Journal of Mechanical and Electrical Intelligent System

      Volume: 4 Pages: 25-34

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Challenge and Fun of Analog/Mixed-Signal IC Testing Technologies2024

    • Author(s)
      Haruo Kobayashi
    • Organizer
      8th International Conference on Technology and Social Science
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bit-Serial DAC With Positive and Negative Polarity Output Using Switched Capacitor Circuit2024

    • Author(s)
      Nobukazu Tsukiji, Eito Minami, Lengkhang Nengvang, Jianglin Wei, Shogo Katayama, Anna Kuwana, Haruo Kobayashi
    • Organizer
      IEEE International Symposium on Intelligent Signal Processing and Communication Systems
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Asynchronous SAR ADC with Parallel Comparators Inspired by Hopfield Network2024

    • Author(s)
      Keita Noda, Hao San, Xueyan Bai, Shogo Katayama, Dan Yao, Anna Kuwana, Zifei Xu, Haruo Kobayashi
    • Organizer
      IEEE International Symposium on Intelligent Signal Processing and Communication Systems
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Circuits and Algorithms for Analog / Mixed-Signal IC Testing in Digital Exploding Society2024

    • Author(s)
      Haruo Kobayashi
    • Organizer
      10th Taiwan and Japan Conference on Circuits and Systems
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Renaissance of ADC Testing Fundamentals2024

    • Author(s)
      Haruo Kobayashi, Jianglin Wei, Keno Sato, Takayuki Nakatani, Shuhei Yamamoto, Anna Kuwana, Yujie Zhao, Kentaroh Katoh
    • Organizer
      IEEE 6th International Conference on Circuits and Systems
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Toward Unification of Digital Error Correction Algorithms for ADCs with Redundancy2024

    • Author(s)
      Haruo Kobayashi, Tomohiko Ogawa, Yutaro Kobayashi, Kentaroh Katoh, Jianglin Wei,
    • Organizer
      IEEE 17th International Conference on Solid State and Integrated Circuit Technology
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent Results of Authors’ Group: Extended Leslie-Singh Architecture of ΔΣ ADC and Mismatch Scrambling for High-Resolution Unary DAC with Virtual 3D Layout2024

    • Author(s)
      Haruo Kobayashi, Lengkhang Nengvang, Dan Yao, Shogo Katayama, Anna Kuwana, Hiroshi Tanimoto, Jianglin Wei
    • Organizer
      IEEE 13th International Conference on Communications, Circuits and Systems
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Error Correction and Self-Calibration of Analogue-Digital Mixed-Signal Integrated Circuits2024

    • Author(s)
      Haruo Kobayashi, Kentaroh Katoh, Jianglin Wei
    • Organizer
      International Summit on Semiconductors, Optoelectronics and Nanostructures
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 冗長性を備えた AD 変換器のデジタル誤差補正アルゴリズムの共通構造2024

    • Author(s)
      小林春夫、加藤健太郎、魏江林
    • Organizer
      第 37 回多値論理とその応用研究会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 冗長性を備えた高信頼動作 AD 変換器の デジタル誤差補正アルゴリズムの一考察2024

    • Author(s)
      小林春夫、加藤健太郎、魏江林
    • Organizer
      第 88 回 FTC 研究会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Recent Results of Authors’ Group: Extended Leslie-Singh Architecture of ΔΣ ADC and Mismatch Scrambling for High-Resolution Unary DAC with Virtual 3D Layout2024

    • Author(s)
      Haruo Kobayashi, Lengkhang Nengvang, Dan Yao, Shogo Katayama, Anna Kuwana, Hiroshi Tanimoto, Jianglin Wei,
    • Organizer
      IEEE 13th International Conference on Communications, Circuits and Systems
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 回路研究へのアンチテーゼ:能動抵抗ネットワークの時空間ダイナミクス2024

    • Author(s)
      小林春夫、大友 翔、千葉将史、片山翔吾、吉廣完治、大出崇登、桑名杏奈, 魏 江林、谷本 洋、源代裕治
    • Organizer
      電気学会 電子回路研究会
    • Related Report
      2023 Research-status Report
  • [Presentation] AD変換器に関する一考察2024

    • Author(s)
      小林春夫、山本修平、趙宇杰、魏江林、 桑名杏奈、久保和良
    • Organizer
      2023年度(第14回)電気学会東京支部 群馬支所・栃木支所 合同研究発表会
    • Related Report
      2023 Research-status Report
  • [Presentation] 冗長性を備えた高信頼動作AD変換器の デジタル誤差補正アルゴリズムの一考察2024

    • Author(s)
      小林春夫、加藤健太郎、魏江林
    • Organizer
      第88回FTC研究会
    • Related Report
      2023 Research-status Report
  • [Presentation] 冗長性を備えたAD変換器のデジタル誤差補正アルゴリズムの共通構造2024

    • Author(s)
      小林春夫、加藤健太郎、魏江林
    • Organizer
      第37回多値論理とその応用研究会
    • Related Report
      2023 Research-status Report
  • [Presentation] Analog Neural Network Circuits in Old Days2023

    • Author(s)
      Haruo Kobayashi
    • Organizer
      7th International Conference on Technology and Social Science
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Signal Generation Technologies for Analog/Mixed-Signal IC Testing2023

    • Author(s)
      Haruo Kobayashi
    • Organizer
      IEEE 15th International Conference on ASIC
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Back to the Analog Neural Network and Linear Circuit Theory"2023

    • Author(s)
      Haruo Kobayashi, Manato Hirai, Kakeru Otomo, Shogo Katayama, Xueyan Bai, Masashi Chiba, Zifei Xu, Dan Yao,    Lengkhang Nengvang, Minh Tri Tran, Kanji Yoshihiro, Anna Kuwana, Takato Ooide, Hiroshi Tanimoto, Yuji Gendai, Jianglin Wei
    • Organizer
      IEEE 15th International Conference on ASIC
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Low Distortion Sinusoidal Signal Generator with Harmonics Cancellation Using Two Types of Digital Predistortion2023

    • Author(s)
      Keno Sato, Takayuki Nakatani, Takashi Ishida, Toshiyuki Okamoto, Tamotsu Ichikawa,    Shogo Katayama, Daisuke Iimori, Misaki Takagi, Yujie Zhao, Shuhei Yamamoto, Anna Kuwana, Kentaroh Katoh, Kazumi Hatayama and Haruo Kobayashi
    • Organizer
      IEEE 53th International Test Conference
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Revisit to RC Linear Circuit Theory2023

    • Author(s)
      Haruo Kobayashi, Kakeru Otomo, Lengkhang Nengvang, Masashi Chiba, Shogo Katayama, Kanji Yoshihiro, Anna Kuwana, Takato Ooide, Hiroshi Tanimoto
    • Organizer
      12th International Conference on Communications, Circuits and Systems
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 自己校正・デジタル誤差補正を用いたAD変換器の信頼性評価技術の研究提案2023

    • Author(s)
      小林春夫、加藤健太郎
    • Organizer
      第87回 FTC研究会
    • Related Report
      2023 Research-status Report
  • [Presentation] Recent Innovation of Waveform Acquisition Methods: Residue Sampling and Metallic Ratio Sampling2022

    • Author(s)
      Haruo Kobayashi
    • Organizer
      11th International Conference on Communications, Circuits and Systems
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Evaluation of Code Selective Histogram Algorithm For ADC Linearity Test2022

    • Author(s)
      Yujie Zhao
    • Organizer
      International Conference On Consumer Electronics, Asia
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Waveform Sampling Technologies for Next Generation Communication and IoT Systems2022

    • Author(s)
      Haruo Kobayashi
    • Organizer
      International Conferencer on Technology and Social Science
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Time-to-Digital Converter Linearity Calibrationwith Metallic Ratio Sampling2022

    • Author(s)
      Shuhei Yamamoto
    • Organizer
      International Conferencer on Technology and Social Science
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] High-Resolution Unary DAC Unit Cell Sorting Algorithms for Linearity Improvement with Measured Unit Cell Values2022

    • Author(s)
      Kaiki Okabe
    • Organizer
      International Conferencer on Technology and Social Science
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Segmented DAC Linearity Improvement Algorithm Using Unit Cell Sorted Alternately with Digital Method2022

    • Author(s)
      Yi Liu
    • Organizer
      24th Workshop on Synthesis And System Integration of Mixed Information technologies
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Recent Innovation of Waveform Acquisition Methods: Residue Sampling and Metallic Ratio Sampling2022

    • Author(s)
      Haruo Kobayashi, Anna Kuwana, Shogo Katayama, Shuhei Yamamoto, Yujie Zhao, Kentaroh Katoh, Yonglun Yan, Koji Asami, Masahiro Ishida
    • Organizer
      11th International Conference on Communications, Circuits and Systems
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Optimization of Segmented DAC Linearity Improvement Algorithm Using Unit Cell Sorting with Digital Method2022

    • Author(s)
      Yi Liu, Anna Kuwana, Shogo Katayama, Xiongyan Li, Atsushi Motozawa, Haruo Kobayashi
    • Organizer
      The 31st International Workshop on Post-Binary ULSI Systems
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Pseudo Random Number Generation Algorithms with Fibonacci Sequence2022

    • Author(s)
      Ryuya Ohta, Anna Kuwana, Shogo Katayama, Haruo Kobayashi
    • Organizer
      The 31st International Workshop on Post-Binary ULSI Systems
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 信号推定アルゴリズムのADC評価への応用2022

    • Author(s)
      梁取友貴, 桑名杏奈,片山翔吾,佐藤賢央, 石田嵩, 岡本智之, 市川保, 中谷隆之, 畠山一実, 小林春夫
    • Organizer
      2021年度(第12回)電気学会東京支部 群馬支所・栃木支所 合同研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 単位セル2次元レイアウト配列のユナリDA変換器のダイナミックエレメントマッチング技術2022

    • Author(s)
      姚丹, 白雪研, 桑名杏奈, 小林春夫
    • Organizer
      2021年度(第12回)電気学会東京支部 群馬支所・栃木支所 合同研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 貴金属比サンプリングを用いた疑似乱数発生アルゴリズム2022

    • Author(s)
      大田龍弥, 桑名杏奈, 片山翔吾, 小林春夫
    • Organizer
      2021年度(第12回)電気学会東京支部 群馬支所・栃木支所 合同研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] フラクタルを用いた集積回路での小チップ面積での抵抗実現法2022

    • Author(s)
      ハミドムハマド ハキブ, 桑名杏奈, 小林春夫
    • Organizer
      2021年度(第12回)電気学会東京支部 群馬支所・栃木支所 合同研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 小規模スイッチトキャパシタ回路を用いた非同期SAR ADC2022

    • Author(s)
      白雪妍, 片山翔吾, 姚丹, 桑名杏奈, 小林春夫
    • Organizer
      2021年度(第12回)電気学会東京支部 群馬支所・栃木支所 合同研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] Metallic Ratio Equivalent-Time Sampling: A Highly Efficient Waveform Acquisition Method2021

    • Author(s)
      Shuhei Yamamoto, Yuto Sasaki, Yujie Zhao, Jianglin Wei, Anna Kuwana,    Keno Sato, Takashi Ishida, Toshiyuki Okamoto, Tamotsu Ichikawa,    Takayuki Nakatani, Tri Tran, Shogo Katayama, Kazumi Hatayama, Haruo Kobayashi
    • Organizer
      the 27th IEEE International Symposium on On-Line Testing and Robust System Design
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Digital-to-Analog Converter Architectures Based on Goldbach Conjecture for Prime Numbers in Mixed-Signal ULSI2021

    • Author(s)
      Xueyan Bai, Yuanyang Du, Minh Tri Tran, Anna Kuwana, Haruo Kobayashi
    • Organizer
      30th International Workshop on Post-Binary ULSI Systems
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Digital-to-Analog Converter Linearity Improvement Technique Based on Classical Number Theory for Modern ULSI2021

    • Author(s)
      Dan Yao, Anna Kuwana, Haruo Kobayashi, Kazuyuki Kawauchi
    • Organizer
      30th International Workshop on Post-Binary ULSI Systems
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Digital-to-Analog Converter Configuration Based on Non-uniform Current Division Resistive-Ladder2021

    • Author(s)
      Manato Hirai, Hiroshi Tanimoto, Yuji Gendai, Shuhei Yamamoto, Anna Kuwana, Haruo Kobayashi
    • Organizer
      The 36th International Technical Conference on Circuits/Systems, Computers and Communications
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Input Signal and Sampling Frequencies Requirements for Efficient ADC Testing with Histogram Method2021

    • Author(s)
      Yujie Zhao, Anna Kuwana, Shuhei Yamamoto, Yuto Sasaki, Haruo Kobayashi, Tri Minh Tran, Takayuki Nakatani,    Kazumi Hatayama, Keno Sato, Takashi Ishida, Toshiyuki Okamoto, Tamotsu Ichikawa, Jianglin Wei, Shogo Katayama
    • Organizer
      The 36th International Technical Conference on Circuits/Systems, Computers and Communications
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Folding ADC for Multi-bit ΔΣ AD Modulator2021

    • Author(s)
      Xiongyan Li, Tianrui Feng, Lengkhang Nengvang, Shogo Katayama, Jianglin Wei, Haijun Lin, Kazufumi Naganuma, Kiyoshi Sasai, Junichi Saito, Anna Kuwana, Haruo Kobayashi
    • Organizer
      International Conference on Analog VLSI Circuits
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Code Selective Histogram Method: Two-Tone Signal for ADC Linearity Test Time Reduction2021

    • Author(s)
      Yujie Zhao, Anna Kuwana, Shogo Katayama, Jianglin Wei, Haruo Kobayashi, Takayuki Nakatani, Kazumi Hatayama, Keno Sato, Takashi Ishida, Toshiyuki Okamoto, Tamotsu Ichikawa,
    • Organizer
      International Conference on Analog VLSI Circuits
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Segmented DAC Unit Cell Selection Algorithm and Layout/Routing Based on Euler's Knight Tour2021

    • Author(s)
      Dan Yao, Xueyan Bai, Anna Kuwana, Kazuyuki Kawauchi, Masashi Higashino, Haruo Kobayashi, Akira Suzuki, Satoshi Yamada, Tomoyuki Kato, Nobuto Ono, Kazuhiro Miura, Kouji Hirai, Ritsuko Kitakoga,
    • Organizer
      International Conference on Analog VLSI Circuits
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Design of Digital-to-Analog Converter Architectures Based on Polygonal Numbers2021

    • Author(s)
      Xueyan Bai, Dan Yao, Yuanyang Du, Minh Tri Tran, Anna Kuwana, Haruo Kobayashi, Kazuyoshi Kubo,
    • Organizer
      International Conference on Analog VLSI Circuits
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Classical Mathematics and Analog/Mixed-Signal IC Design2021

    • Author(s)
      Haruo Kobayashi, Xueyan Bai, Yujie Zhao, Shuhei Yamamoto, Dan Yao, Manato Hirai, Jianglin Wei, Shogo Katayama, Anna Kuwana,
    • Organizer
      IEEE 14th International Conference on ASIC
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Application of Residue Sampling to RF/AMS Device Testing2021

    • Author(s)
      Shogo Katayama, Yudai Abe, Anna Kuwana, Koji Asami, Masahiro Ishida, Ryuya Ohta, Haruo Kobayashi
    • Organizer
      30th IEEE Asian Test Symposium
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Smart Mathematics Leads to Sophisticated Analog/Mixed-Signal Circuit2021

    • Author(s)
      Haruo Kobayashi, Xueyan Bai, Yujie Zhao, Shuhei Yamamoto, Dan Yao, Manato Hirai, Jianglin Wei, Shogo Katayama, Anna Kuwana,
    • Organizer
      5th International Conference on Technology and Social Science
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ヒストグラム法による効率的ADC試験のための入力周波数とサンプリング周波数の関係の検討2021

    • Author(s)
      趙宇杰, 桑名 杏奈, 山本修平, 佐々木 優斗, 小林 春夫, チャン ミン チー, 片山翔吾, 魏江林, 中谷 隆之, 畠山 一実, 佐藤 賢央, 石田 嵩, 岡本 智之, 市川 保
    • Organizer
      第83回FTC研究会
    • Related Report
      2021 Research-status Report
  • [Remarks] Koba Lab Official Page<小林春夫研究室公式ホームページ> 発表論文・学会発表

    • URL

      https://kobaweb.ei.st.gunma-u.ac.jp/gakkai.html

    • Related Report
      2024 Annual Research Report

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Published: 2021-04-28   Modified: 2026-01-16  

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