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3D pointing devices with orientation compensation and improved usability

  • US 9,298,282 B2
  • Filed: 12/08/2014
  • Issued: 03/29/2016
  • Est. Priority Date: 04/30/2004
  • Status: Active Grant
First Claim
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1. A 3D pointing device comprising:

  • a sensor configured to generate a first output associated with motion of said 3D pointing device;

    an accelerometer configured to detect acceleration of said 3D pointing device and outputting at least one second output; and

    a processing unit configured to receive and process said first output from said sensor and said at least one second output from said accelerometer,said process including;

    determining an orientation in which said 3D pointing device is held using said at least one second output,compensating said first output based on said determined orientation by performing a two-dimensional rotational transform on said first output to generate an output which is substantially independent of a tilt of said 3D pointing device with reference to a predetermined axis; and

    determining a gesture associated with the detected movement.

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