- Patent Title: Method and fingerprint sensing device with finger lost detection
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Application No.: US15176622Application Date: 2016-06-08
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Publication No.: US09811708B2Publication Date: 2017-11-07
- Inventor: David Carling , Hans Thörnblom
- Applicant: Fingerprint Cards AB
- Applicant Address: SE Göteborg
- Assignee: FINGERPRINT CARDS AB
- Current Assignee: FINGERPRINT CARDS AB
- Current Assignee Address: SE Göteborg
- Agency: RMCK Law Group, PLC
- Priority: SE1551263 20151002
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
The present invention relates to a fingerprint sensing device comprising an array of sensing elements; readout circuitry connected to the array of sensing elements; and finger detecting circuitry for detecting if a finger candidate is touching the sensing surface of the fingerprint sensing device. The fingerprint sensing device is controllable between an active state and an inactive state. When the fingerprint sensing device is in the inactive state, the finger detecting circuitry is configured to provide a finger lost signal for indicating when the finger candidate no longer touches the sensing surface of the fingerprint sensing device.
Public/Granted literature
- US20170098109A1 METHOD AND FINGERPRINT SENSING DEVICE WITH FINGER LOST DETECTION Public/Granted day:2017-04-06
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