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Proximity sensing for input detection

  • US 9,201,512 B1
  • Filed: 07/16/2012
  • Issued: 12/01/2015
  • Est. Priority Date: 04/02/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving light data from at least one light sensor, wherein the light data indicates at least one characteristic of light reflected from an eye area;

    detecting a blink event based on the light data, wherein detecting the blink event comprises detecting, in a given portion of the light data, a first light-intensity level and a subsequent second light-intensity level, wherein the first light-intensity level is associated with an eye-open state, and wherein the second light-intensity level is associated with an eye-closed state;

    determining a particular gaze direction based on the given portion of the light data, wherein determining the particular gaze direction comprises;

    (i) determining a difference between the first and second light-intensity levels, and (ii) determining that the difference between the first and second light-intensity levels corresponds to the particular gaze direction; and

    causing at least one computing action to be performed based on the particular gaze direction.

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