| Presentation | 2004/5/14 An Ultralow-Power Fingerprint Sensing Circuit Scheme for a Single-Chip Fingerprint Sensor/Identifier Hiroki MORIMURA, Toshishige SHIMAMURA, Koji FUJII, Satoshi SHIGEMATSU, Yukio OKAZAKI, Katsuyuki MACHIDA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A zero-sink-current Schmitt trigger and a window-flexible counting circuit are proposed for low-power and adjustable sensing of a single-chip fingerprint sensor/identifier LSI (FIL). The Schmitt trigger used for A/D conversion dramatically reduces the power dissipation, and the counting circuit used for evaluation of the image quality enhances the adjustability of fingerprint sensing. The proposed techniques were evaluated on the chip implemented in the 0.25μm CMOS and our sensor processes. The scheme achieved the ultralow-power sensing of 6.4μW/frame, which is 1/1500 that of a conventional chip, while the sensing adjustability is enhanced. This confirms the effectiveness of the ultralow-power fingerprint sensing circuit scheme suitable for a single-chip fingerprint sensor/identifier. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fingerprint sensor/identifier / Fingerprint sensing / Schmitt trigger / Counting circuit / Low power / Flexibility |
| Paper # | ICD2004-30 |
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| Committee | ICD |
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| Conference Date | 2004/5/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Ultralow-Power Fingerprint Sensing Circuit Scheme for a Single-Chip Fingerprint Sensor/Identifier |
| Sub Title (in English) | |
| Keyword(1) | Fingerprint sensor/identifier |
| Keyword(2) | Fingerprint sensing |
| Keyword(3) | Schmitt trigger |
| Keyword(4) | Counting circuit |
| Keyword(5) | Low power |
| Keyword(6) | Flexibility |
| 1st Author's Name | Hiroki MORIMURA |
| 1st Author's Affiliation | NTT Microsystem Integration Laboratories() |
| 2nd Author's Name | Toshishige SHIMAMURA |
| 2nd Author's Affiliation | NTT Microsystem Integration Laboratories |
| 3rd Author's Name | Koji FUJII |
| 3rd Author's Affiliation | NTT Microsystem Integration Laboratories |
| 4th Author's Name | Satoshi SHIGEMATSU |
| 4th Author's Affiliation | NTT Microsystem Integration Laboratories |
| 5th Author's Name | Yukio OKAZAKI |
| 5th Author's Affiliation | NTT Microsystem Integration Laboratories |
| 6th Author's Name | Katsuyuki MACHIDA |
| 6th Author's Affiliation | NTT Microsystem Integration Laboratories |
| Date | 2004/5/14 |
| Paper # | ICD2004-30 |
| Volume (vol) | vol.104 |
| Number (no) | 67 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |