Interactive wireless tag location and identification system
First Claim
1. A wireless location and identification system, comprising:
- a controller, comprising;
a projector configured to generate a unique temporal sequence of light intensities for each pixel in an output image of the projector;
a wireless transceiver configured to emit an output signal and receive an input signal; and
a tag, comprising;
a photo-sensor configured to sense the unique temporal sequence of light intensities of a particular pixel;
a transducer configured to receive the output signal from the transceiver;
means for modulating, according to the unique temporal sequence of light intensities, the input signal for the transceiver in response to receiving the output signal and sensing the unique temporal sequence of light intensities of the particular pixel to indicate a location of the tag to the controller.
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Accused Products
Abstract
A wireless location and identification system includes a controller and a tag. The controller has a projector configured to generate a unique temporal sequence of light intensities for each pixel in an output image of the projector and a wireless transceiver configured to emit an output signal and receive an input signal. The tag includes a photo-sensor configured to sense the unique temporal sequence of light intensities of a particular pixel, a transducer configured to receive the output signal from the transceiver, and a means for modulating, according to the unique temporal sequence of light intensities, the input signal for the transceiver in response to receiving the output signal and sensing the unique temporal sequence of light intensities of the particular pixel to indicate a location of the tag to the controller.
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Citations
36 Claims
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1. A wireless location and identification system, comprising:
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a controller, comprising; a projector configured to generate a unique temporal sequence of light intensities for each pixel in an output image of the projector; a wireless transceiver configured to emit an output signal and receive an input signal; and a tag, comprising; a photo-sensor configured to sense the unique temporal sequence of light intensities of a particular pixel; a transducer configured to receive the output signal from the transceiver; means for modulating, according to the unique temporal sequence of light intensities, the input signal for the transceiver in response to receiving the output signal and sensing the unique temporal sequence of light intensities of the particular pixel to indicate a location of the tag to the controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A wireless location and identification method, comprising:
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projecting, from a controller, a wireless output signal and a unique temporal sequence of light intensities for each pixel in an output image; sensing in a tag, the wireless output signal; sensing, in the tag, in response to sensing the wireless output signal, the unique temporal sequence of light intensities; modulating, in the tag, according to the unique temporal sequence of light intensities, an input signal for the controller in response to receiving the output signal and sensing the unique temporal sequence of light intensities of the particular pixel to indicate a location of the tag to the controller.
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Specification