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Methods and apparatus for using illumination marks for spatial pointing

  • US 9,694,278 B2
  • Filed: 06/13/2016
  • Issued: 07/04/2017
  • Est. Priority Date: 05/08/2006
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • an infrared light emitting bar configured to transmit infrared light, the infrared light emitting bar comprising;

    an elongated linear-shaped housing having first and second ends, at least a portion of said housing being infrared-light transmissive;

    a first plurality of infrared light emitters disposed within the housing substantially at the housing first end;

    a second plurality of infrared light emitters disposed within the housing substantially at the housing second end and spaced apart from the first plurality of infrared light emitters, the first and second pluralities of infrared light emitters being arranged to transmit infrared light through the infrared-light transmissive housing portion; and

    an electrically-conductive wire entering the housing and connected to commonly activate the first and second pluralities of the infrared light emitters;

    a handheld controller comprising;

    an optical detector configured to detect infrared light emitted by the first and second pluralities of infrared light emitters; and

    a wireless transmitter operatively coupled to the optical detector and configured to wirelessly transmit indications based on the infrared light detected by the optical detector; and

    an information processing device comprising;

    at least one wireless receiver configured to wirelessly receive the transmitted indications from the wireless transmitter;

    at least one memory configured to store computer executable instructions; and

    at least one processor, which upon executing the instructions, is configured to (i) ascertain real-time continuous aspects of at least a position and a pointing orientation of the optical detector relative to the light emitting bar based on the transmitted indications, and (ii) based on the real-time continuous aspects of at least the position and the pointing orientation, operate at least one object being displayed on a display device operatively coupled to the information processing device;

    wherein the housing is configured so that the optical detector can sense infrared light emitted by the first and second pluralities of infrared light emitters when the optical detector is substantially off axis with respect to a direction perpendicular to the housing light-transmissive portion.

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