Invention Grant
- Patent Title: Methods and sensors for multiphase scanning in the fingerprint and touch applications
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Application No.: US15487210Application Date: 2017-04-13
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Publication No.: US10579849B2Publication Date: 2020-03-03
- Inventor: Viktor Kremin , Spartak Mankovskyy , Roman Ogirko
- Applicant: Cypress Semiconductor Corporation
- Applicant Address: US CA San Jose
- Assignee: Cypress Semiconductor Corporation
- Current Assignee: Cypress Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06F3/044

Abstract:
Techniques for multi-phase scanning based on pseudo-random sequences in capacitive fingerprint applications are described herein. In an example embodiment, a method performed by a processing device comprises: receiving measurements that are representative of a portion of a finger on a capacitive fingerprint sensor array, where the measurements are obtained from sensor elements of the capacitive fingerprint sensor array that are scanned in a multi-phase mode based on an excitation vector generated from a pseudo-random sequence; and generating a fingerprint image for the portion of the finger based on the measurements.
Public/Granted literature
- US20170351897A1 Methods and Sensors for MultiPhase Scanning in the Fingerprint and Touch Applications Public/Granted day:2017-12-07
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