An advanced fingerprint sensor LSI and its application to a fingerprint identification system

被引：2
|
作者：
Morimura, H [1 ]
Shigematsu, S [1 ]
Shimamura, T [1 ]
Fujii, K [1 ]
Yamaguchi, C [1 ]
Suto, H [1 ]
Okazaki, Y [1 ]
Machida, K [1 ]
Kyuragi, H [1 ]
机构：
[1] NTT Corp, Lifesyle & Environm Technol Labs, Atsugi, Kanagawa 2430198, Japan
来源：
2002 SYMPOSIUM ON VLSI CIRCUITS, DIGEST OF TECHNICAL PAPERS | 2002年
关键词：
D O I：
10.1109/VLSIC.2002.1015103
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
We developed an advanced fingerprint sensor LSI that features a novel sensor structure, sensing circuit, and calibration circuit, using the 0.5-mum CMOS process/sensor process. The LSI is reliable, sensitive, and tolerant to changes in the sensor surface conditions for capturing clear fingerprint image over long-term use. We also introduce a fingerprint-image adjustment scheme with an adjustable A/D converter to obtain image quality suitable for identification. The fingerprint sensor LSI was applied to a fingerprint identification system with the fingerprint-image adjustment scheme and achieved sufficient performance for a practical fingerprint identification system.
引用
收藏
页码：272 / 275
页数：4
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