Invention Grant
- Patent Title: Fingerprint sensor with differently sized sensing structures
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Application No.: US17467745Application Date: 2021-09-07
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Publication No.: US11538267B2Publication Date: 2022-12-27
- Inventor: Frank Riedijk , Wouter Brevet , Hans Thörnblom
- 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: SE2051063-2 20200910
- Main IPC: G06V40/13
- IPC: G06V40/13 ; G06V10/147 ; H04M1/02

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 placed on the finger receiving surface of the fingerprint sensor arrangement, the plurality of electrically conductive sensing structures including: a first set of electrically conductive sensing structures, each sensing structure in the first set of electrically conductive sensing structures covering an area in the sensing plane being within a first area range; and a second set of electrically conductive sensing structures, each sensing structure in the second set of electrically conductive sensing structures covering an area in the sensing plane being within a second area range only including areas greater than the areas within the first area range.
Public/Granted literature
- US20220075977A1 FINGERPRINT SENSOR WITH DIFFERENTLY SIZED SENSING STRUCTURES Public/Granted day:2022-03-10
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