| 基于USB传输及CMOS图像传感器的指纹识别仪的实现 |
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| 引用本文： | 严家喜,李昂,史延东.基于USB传输及CMOS图像传感器的指纹识别仪的实现[J].光学仪器,2005,27(1):37-41. |
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| 作者姓名： | 严家喜 李昂 史延东 |
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| 作者单位： | 西北工业大学自动化学院,陕西,西安,710072;西北工业大学自动化学院,陕西,西安,710072;西北工业大学自动化学院,陕西,西安,710072 |
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| 摘 要： | 介绍了基于CMOS图像传感器OV7620和EZ—USBAN2131QCUSB数据传输的指纹识别仪硬件实现,为匹配时序使用了CPLD技术实现了高速缓冲区,并重点对USB批量快速传输和CPLD缓冲控制的实现进行了讨论。由此方法实现的指纹识别系统反应灵敏,稳定可靠。
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| 关 键 词： | CMOS图像传感器 指纹识别仪 OV7620 AN2131QC CPLD |
| 文章编号： | 1005-5630(2005)01-0037-05 |
| 修稿时间： | 2004年7月16日 |
Implementation of fingerprint recognition instrument based on USB transfer and CMOS image sensor |
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| YAN Jia-xi,LI Ang,SHI Yan-dong.Implementation of fingerprint recognition instrument based on USB transfer and CMOS image sensor[J].Optical Instruments,2005,27(1):37-41. |
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| Authors: | YAN Jia-xi LI Ang SHI Yan-dong |
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| Abstract: | Hardware circuit design of the fingerprint instrument based on CMOS image sensor OV7620 and EZ—USB AN2131QC USB data transfer are introduced. To meet the timing requirement, high speed buffer is implemented by use CPLD. How to realize USB bulk transfer and high speed buffer is discussed in detail in the paper.The instrument implemented with methods above is sensitive and steady. |
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| Keywords: | CMOS image sensor fingerprint recognition instrument OV7620 AN2131QC CPLD |
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