Software and hardware techniques for a single-chip fingerprint sensor/identifier

被引:0
|
作者
Shigematsu, S [1 ]
Morimura, H [1 ]
Fujii, K [1 ]
Hatano, T [1 ]
Nakanishi, M [1 ]
Ikeda, N [1 ]
Shimamura, T [1 ]
Okazaki, Y [1 ]
Tanabe, Y [1 ]
Machida, K [1 ]
Kyuragi, H [1 ]
机构
[1] NTT Corp, Lifestyle & Environm Technol Labs, Musashino, Tokyo, Japan
关键词
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The single-chip fingerprint sensor/identifier is based on a new chip concept in which the fingerprint sensor is stacked above the identification circuit, and the identification circuit features a pixel-parallel structure. To realize the concept and improve identification accuracy and chip reliability, various software and hardware techniques were devised. The software techniques enhance and identify a sensed fingerprint image on the pixel-parallel identification circuit. The hardware techniques provide the circuit and device that execute the software with a high reliability. Test chip performance indicates that the accuracy, power consumption, and speed of identification are sufficient for practical use. A fingerprint identification system on a chip has been achieved uniting these software and hardware techniques.
引用
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页码:123 / 128
页数:6
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