发明名称 |
Random binary sequence generating system for fingerprint encryption system, has fingerprint scanning sensor with analog-digital converter to convert voltage level detected by pyroelectric matrix into digital values |
摘要 |
<p>The system has a fingerprint scanning sensor (10) with a pyroelectric matrix constituted by eight rows of 280 pixels to detect a fingerprint during positioning of fingers against a surface of the sensor. The sensor has an analog-digital converter (14) to convert voltage level detected by the pyroelectric matrix into digital values whose least significant bits serve to constitute bits of pseudo-random sequence. An independent claim is also included for a system comprising a random binary sequence generator.</p> |
申请公布号 |
FR2862394(A1) |
申请公布日期 |
2005.05.20 |
申请号 |
FR20030013491 |
申请日期 |
2003.11.18 |
申请人 |
ATMEL GRENOBLE S.A. |
发明人 |
MAINGUET JEAN FRANCOIS;FRANCIOLI FABRICE |
分类号 |
G06F7/58;H04L9/32;(IPC1-7):G06F7/58 |
主分类号 |
G06F7/58 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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