Method and apparatus for locating a transmitter of a diffuse infrared signal within an enclosed area
First Claim
1. A method of locating a portable remote station transceiving a diffuse infrared communicated signal within an enclosed area containing a plurality of stationary infrared transceivers interconnected with a central controller, such method comprising the steps of:
- detecting a particular transmission of the diffuse infrared communicated signal from the portable remote station within the enclosed area by the plurality of stationary transceivers;
measuring a parametric value of the particular signal received by each stationary transceiver of the plurality of stationary transceivers; and
locating the portable remote station by triangulation based upon differences in the parametric value measured by at least two of the plurality of stationary transceivers.
3 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus is provided of locating a portable remote station transceiving a diffuse infrared communicated signal within an enclosed area containing a plurality of stationary infrared transceivers interconnected with a central controller. The method includes the steps of detecting a particular transmission of the diffuse infrared communicated signal from the portable remote station within the enclosed area by the plurality of stationary transceivers and measuring a parametric value of the particular signal received by each stationary transceiver of the plurality of stationary transceivers. The method further includes the step of locating the portable remote station based upon differences in the parametric value measured at each stationary transceivers.
316 Citations
14 Claims
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1. A method of locating a portable remote station transceiving a diffuse infrared communicated signal within an enclosed area containing a plurality of stationary infrared transceivers interconnected with a central controller, such method comprising the steps of:
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detecting a particular transmission of the diffuse infrared communicated signal from the portable remote station within the enclosed area by the plurality of stationary transceivers; measuring a parametric value of the particular signal received by each stationary transceiver of the plurality of stationary transceivers; and locating the portable remote station by triangulation based upon differences in the parametric value measured by at least two of the plurality of stationary transceivers. - View Dependent Claims (2, 3, 4, 5)
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6. Apparatus for locating a portable remote station transceiving a diffuse infrared communicated signal within an enclosed area containing a plurality of stationary infrared transceivers interconnected with a central controller, such method comprising:
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means for detecting a particular transmission of the diffuse infrared communicated signal from the portable remote station within the enclosed area by the plurality of stationary transceivers; means for measuring parametric values of the particular signal received by each stationary transceiver of the plurality of stationary transceivers; and means for locating the portable remote station by triangulation based upon the parametric differences of the particular signal measured by at least two of the plurality of stationary transceivers. - View Dependent Claims (7, 8, 9, 10)
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11. A method of locating a portable remote station transceiving a diffuse infrared communicated signal within an enclosed area containing a stationary infrared transceiver interconnected with a central controller, such method comprising the steps of:
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detecting a particular transmission of the diffuse infrared communicated signal from the portable remote station within the enclosed area by a plurality of angularly diverse infrared detectors of the stationary transceiver; measuring a parametric value of the particular signal received by each detector of the plurality of detectors of the stationary transceiver; and locating the portable remote station by triangulation based upon differences in the parametric value measured at least two of the measuring detectors. - View Dependent Claims (12, 13, 14)
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Specification