System and method for device co-location discrimination
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Abstract
A system and method for determining if a first and second device are co-located includes first and second sensors for receiving a sample signal. Each sensor is coupled to the first and second devices. The first and second devices each responsively generate a first and second signal representing the sampled signal. Also included is a transmission device located at the first device for transmitting the first signal to the second device and a receiving device located at the second device for receiving the first signal from the first device. Finally, a signal analysis device determines if the first and second devices are co-located.
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Citations
31 Claims
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1-30. -30. (canceled)
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31. A first device for wireless communication capable of determining whether a second device is co-located with the first device within a room, wherein a sample signal exists in the room, the first device comprising:
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a sampler operable to generate a first representative signal for the sample signal wherein the sample signal is confined within the room;
a receiver operable to receive a second representative signal from the second device; and
a processor module coupled to the sampler and the receiver, wherein the processor module is operable, to analyze the first representative signal and the second representative signal, to determine that the second device is co-located within the room if the first representative signal and the second representative signal are substantially the same, and to determine that the second device is not co-located within the room if the first representative signal and the second representative signal are not substantially the same.
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Specification