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Force sensing input device and method for determining force information

  • US 9,207,801 B2
  • Filed: 01/16/2014
  • Issued: 12/08/2015
  • Est. Priority Date: 12/14/2011
  • Status: Active Grant
First Claim
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1. An electronic system comprising:

  • a capacitive input device comprising;

    an input surface configured to rotate about a first axis, anda first force sensor configured to sense a force applied to the input surface;

    a processing system communicatively coupled to the capacitive input device, the processing system configured to;

    determine positional information for each of at least one input object in contact with the input surface;

    receive a force measurement from the first force sensor;

    determine a force measurement for a first input object of the at least one input objects based upon a position of the first input object, the force measurement from the first force sensor and a location of the first force sensor relative to the first axis; and

    determine a type of user input based upon the determined force measurement for the at least one input object.

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