Directional remote control based on ranging
First Claim
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1. An apparatus comprising:
- at least one computer memory that is not a transitory signal and that comprises instructions executable by at least one processor to;
transmit a wireless interrogation signal to a companion device;
receive one or more responses to the interrogation signal from the companion device;
based on the one or more responses, determine at least first and second distances;
determine a difference between the first and second distances;
compare the difference to a known distance;
based on the compare, generate one of two binary outputs.
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Abstract
A remote control (RC) has two ultra-wideband tags arranged along the axis of the RC at a known distance “d” from each other. An appliance to be controlled can use a UWB anchor to ping the tags and determine the distance to each tag. The distances are then subtracted and if the difference substantially equals the known distance “d”, this represents an indication that the RC is pointed directly at the appliance, and the appliance accordingly will execute commands from the RC. Otherwise, the appliance ignores the RC commands.
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Citations
18 Claims
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1. An apparatus comprising:
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at least one computer memory that is not a transitory signal and that comprises instructions executable by at least one processor to; transmit a wireless interrogation signal to a companion device; receive one or more responses to the interrogation signal from the companion device; based on the one or more responses, determine at least first and second distances; determine a difference between the first and second distances; compare the difference to a known distance; based on the compare, generate one of two binary outputs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, comprising:
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transmitting a wireless interrogation signal to a companion device; receiving one or more responses to the interrogation signal from the companion device; based on the one or more responses, determining at least first and second distances; determining a difference between the first and second distances; comparing the difference to a first distance; based on the comparing, generating one of two binary outputs. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification