| 摘要 |
A press-trigger fingerprint sensor module is disclosed, comprising two embedded switches, a sensor panel and a fingerprint recognition processor. When the user puts the finger in predetermined position over the sensor panel, the first switch is activated. The first switch sends out a high signal to have power connected to the fingerprint sensor. Without changing the position of the finger, the pressure being exerted perpendicular to the panel surface is transferred to the second switch, which then senses the presence of the finger and captures an image. The fingerprint recognition is performed subsequently. This sensor switch mechanism enables the system to obtain fast and high resolution images for fingerprint recognition. The smaller size of the fingerprint sensor not only reduces the power demands, but also breaks through the size barrier for encouraging more applications on mobile device.
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