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Biometric image sensing

  • US 10,115,001 B2
  • Filed: 04/25/2017
  • Issued: 10/30/2018
  • Est. Priority Date: 01/15/2010
  • Status: Active Grant
First Claim
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1. An assembly combining a fingerprint sensor with a switch, the assembly comprising:

  • a flexible fingerprint sensor comprising;

    a flexible dielectric substrate,a plurality of drive lines configured to transmit a signal, anda plurality of pickup lines configured to receive at least a portion of the signal transmitted by the drive lines, wherein the pickup lines are oriented transversely to the drive lines and are physically separated from the drive lines by the flexible dielectric substrate to form a sensing area having a two dimensional array of electrode pairs that are impedance sensitive to detect ridge and valley features of a finger proximally located with respect to at least a portion of the sensing area; and

    a sensor switch assembly comprising;

    a base having a top surface, wherein the sensing area of the flexible fingerprint sensor is disposed over the top surface of the base, anda switch below the sensing area,wherein the flexible fingerprint sensor and the sensor switch assembly are constructed and arranged to allow a user to contact the switch by placing a finger on the sensing area over the switch.

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