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Methods and apparatus for power-efficient iris recognition

  • US 10,032,075 B2
  • Filed: 12/23/2014
  • Issued: 07/24/2018
  • Est. Priority Date: 12/23/2013
  • Status: Active Grant
First Claim
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1. A system for power-efficient iris recognition, the system comprising:

  • a sensor to acquire at least one image of an iris of a user; and

    circuitry configured to implement;

    an iris recognition engine, operably coupled to the sensor, to perform iris recognition of the user based on the at least one image of the iris of the user;

    a sensor power controller, operably coupled to the sensor, to provide electrical power to the sensor; and

    an iris acquisition mode detector, operably coupled to the sensor and to the sensor power controller, to determine an operational mode of the system using an output from the sensor, and to adjust a time period between successive sensing enablements of the sensor according to the operational mode so as to control the electrical power provided to the sensor,wherein the operational mode of the system is at least one of iris recognition is not possible, iris recognition is possible but not preferred, or iris recognition is possible and preferred.

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