专利内容由知识产权出版社提供
专利名称：FINGERPRINT IDENTIFICATION DEVICE AND
METHOD
发明人：Songtao Chen申请号：US15248479申请日：20160826
公开号：US201603597A1公开日：20161215
专利附图：
摘要：The present disclosure discloses a fingerprint identification apparatus andmethod. The fingerprint identification apparatus comprises a fingerprint acquisitionmodule, an analog-to-digital conversion module and a control module that are
sequentially connected, wherein the analog-to-digital conversion module comprises aquantified voltage generator for generating a quantified voltage, the fingerprintacquisition module is configured to acquire fingerprint information, and the analog-to-digital conversion module is configured to perform an analog-to-digital conversion forthe fingerprint information and output quantified fingerprint information data; whereinthe control module is configured to control the quantified voltage generator to adjust anoutput range of the quantified voltage according to a distribution range of the
fingerprint information data to enlarge a distribution range of the quantified fingerprintinformation data. As such, dynamic adjustment of the contrast of a fingerprint image isachieved with a simple circuit and a low cost.
申请人：SHENZHEN HUIDING TECHNOLOGY CO., LTD.
地址：Shenzhen CN
国籍：CN
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