Research of time digital converter using early vision model
| Project/Area Number |
16K06318
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Kanagawa University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
Nicodimus Retdia 芝浦工業大学, 工学(系)研究科(研究院), 准教授 (90401538)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Keywords | 初期視覚モデル / 環状多相発振回路 / フィルタ / 発振モード / 時間ディジタル変換回路 / N-pathノッチフィルタ / スイッチトキャパシタ回路 / ジッター / 商用電源雑音 / 雑音 / 電子デバイス・機器 / 網膜の神経回路 / 時間ディジタル変換 / CMOSアナログ集積回路 |
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| Outline of Final Research Achievements |
In this study, a signal processing method in the early vision model of the retina is introduced to improve the measurement accuracy of the time-to-digital converter. Each oscillator output waveform of the multi-phase ring coupled oscillators (MPRCO) is considered as a photoreceptor cell output of the retina. The dynamic behavior of the MPRCO was analyzed to avoid the instability of the oscillation mode, and the circuit design technique and its startup procedure were proposed to realize an MPRCO that oscillates in a specific mode. In addition, a new output code robust against oscillation frequency perturbations was proposed, as well as a N-path notch filter to improve TDC time resolution. The results of this research will enable recognition of the external environment of an autonomous vehicle in more detail, and in medical imaging devices it will be possible to detect lesions at an early stage. Thus great benefits to our lives are anticipated.
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| Academic Significance and Societal Importance of the Research Achievements |
近年外界情報のセンシング技術が注目されている。時間を計測する装置の高精度化は、自動車の自律走行運転や医療用イメージング装置等に代表されるセンシング技術の発展に不可欠である。本研究の成果は、自律走行運転においては外界をより精度よく認識することに役立ち、医療用イメージング装置においては、病変を初期段階で検出することが可能になるなど、我々の生活に大きな便益をもたらすと考えられる。
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Report
(4 results)
Research Products
(19 results)
