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Systems and methods for ultrasonic velocity and acceleration detection

  • US 9,739,883 B2
  • Filed: 05/16/2014
  • Issued: 08/22/2017
  • Est. Priority Date: 05/16/2014
  • Status: Expired due to Fees
First Claim
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1. A system for determining velocity data of an object within a region, comprising:

  • a position module configured to determine a relative position of an object within a region;

    an ultrasonic transmitter configured to transmit ultrasound into the region;

    an ultrasonic receiver configured to receive an ultrasonic reflection of the transmitted ultrasound from a site on the object within the region;

    a shift module configured to detect a shift of the ultrasonic reflection received by the ultrasonic receiver relative to the transmitted ultrasound;

    a velocity calculation module configured to calculate a first velocity component associated with the site based on the detected shift of the received ultrasonic reflection;

    a modification module configured to modify the state of an entertainment device based on the relative position of the object and the first velocity component of the site;

    wherein the ultrasonic receiver is further configured to;

    receive a direct ultrasonic reflection from an object within the region, andreceive a rebounded ultrasonic reflection from the object, wherein the rebounded ultrasonic reflection comprises ultrasound reflected by the object and the first surface, and then received by the ultrasonic receiver; and

    a mapping system configured to;

    generate direct positional data associated with the object based on the direct ultrasonic reflection,generate rebounded positional data using the rebounded ultrasonic reflection of the object from the first surface, andgenerate enhanced positional data by combining the direct positional data and the rebounded positional data.

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