Fingerprint sensor and method thereof
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United States of America Patent
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Oct 17, 2017
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app pub date -
Dec 27, 2015
filing date -
Oct 16, 2015
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Abstract
Disclosed are a fingerprint sensor and a fingerprint sensing method thereof. The fingerprint sensor comprises a substrate, a plurality of sensing electrodes, an integrated circuit and a protection layer. The substrate has a first surface and a second surface. The sensing electrodes are configured on the first surface of the substrate, and electrically connected to the integrated circuit. The integrated circuit comprises a plurality of phase shifters, and each phase shifter is electrically connected to its corresponding sensing electrode to control the phase of electric signal transmitted by the sensing electrode. The first surface of the substrate is covered by the protection layer.
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