发明名称 |
Method, apparatus and computer program product to determine a resonant frequency in a biometric sensor |
摘要 |
Provided is a method for determining a resonant frequency of a biometric sensor. The method includes obtaining first pixel data from a first scan by scanning the biometric sensor with a first frequency. Second pixel data is obtained from a second scan by scanning the biometric sensor with a second frequency that is different from the first frequency. A respective first and second reference value is calculated from the first and the second pixel data. A highest reference value is determined from the first and the second reference values. The first or the second frequency is selected as the resonant frequency based on the highest reference value.
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申请公布号 |
US2009279746(A1) |
申请公布日期 |
2009.11.12 |
申请号 |
US20080149664 |
申请日期 |
2008.05.06 |
申请人 |
SONAVATION, INC. |
发明人 |
CLARKE DAVID BRIAN;LIAUTAUD CHRISTIAN |
分类号 |
G06K9/20 |
主分类号 |
G06K9/20 |
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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