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Finger biometric sensing device including error compensation circuitry and related methods

  • US 9,390,307 B2
  • Filed: 05/03/2013
  • Issued: 07/12/2016
  • Est. Priority Date: 05/04/2012
  • Status: Active Grant
First Claim
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1. A finger biometric sensing device comprising:

  • an array of finger biometric sensing pixel electrodes capable of sensing finger biometric data from a user'"'"'s finger adjacent thereto, the sensed finger biometric data having at least one error therein;

    at least one gain stage coupled to said array of finger biometric sensing pixel electrodes; and

    error compensation circuitry comprisinga memory capable of storing error compensation data for the sensed finger biometric data, anda digital-to-analog converter (DAC) cooperating with said memory and coupled to said at least one gain stage and capable of compensating for the at least one error in the sensed finger biometric data based upon the stored error compensation data.

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