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Embedded force measurement

  • US 9,746,983 B2
  • Filed: 12/19/2014
  • Issued: 08/29/2017
  • Est. Priority Date: 11/29/2011
  • Status: Active Grant
First Claim
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1. A force detection system, comprising:

  • a display;

    a force measurement layer disposed on or in the display, wherein the force measurement layer has an attribute with a baseline measurement; and

    force measurement circuitry configured to determine the baseline measurement of the force measurement layer at pre-determined time periods, detect a change in the baseline measurement in at least one portion of the force measurement layer, calculate a force input location based entirely upon the change in the baseline measurement, calculate a magnitude of force based entirely upon the change in the baseline measurement, provide a first touch command input to the display when the magnitude of force is greater than a first level of force, and provide a second touch command input to the display when the magnitude of force is greater than a second level of force, wherein the first and second levels of force are different.

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