Invention Grant
- Patent Title: Fingerprint sensor with different measurement circuitry configurations
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Application No.: US17467633Application Date: 2021-09-07
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Publication No.: US11501554B2Publication Date: 2022-11-15
- Inventor: Frank Riedijk , David Carling , Hans Thörnblom , Wouter Brevet
- Applicant: Fingerprint Cards AB
- Applicant Address: SE Gothenburg
- Assignee: Fingerprint Cards AB
- Current Assignee: Fingerprint Cards AB
- Current Assignee Address: SE Gothenburg
- Agency: RMCK Law Group, PLC
- Priority: SE2051062-4 20200910
- Main IPC: G06V40/13
- IPC: G06V40/13 ; G06F3/044

Abstract:
A fingerprint sensor comprising a plurality of electrically conductive sensing structures arranged in a sensing plane for capacitively sensing a fingerprint of a finger; and measurement circuitry coupled to the plurality of electrically conductive sensing structures for providing measurement signals indicative of a capacitive coupling between each sensing structure in the plurality of electrically conductive sensing structures and the finger, wherein the measurement circuitry is arranged to: provide, using a first measurement circuitry configuration, a first set of measurement signals from a first set of sensing structures; and provide, using a second measurement circuitry configuration different from the first measurement circuitry configuration, a second set of measurement signals from a second set of sensing structures.
Public/Granted literature
- US20220075976A1 FINGERPRINT SENSOR WITH DIFFERENT MEASUREMENT CIRCUITRY CONFIGURATIONS Public/Granted day:2022-03-10
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