Proximity detection of devices based on information communicated via an audio channel

A first device periodically transmits a first audio signal that encodes a first code over an audio channel that is shared between the first device and a second device, and the second device periodically transmits a second audio signal that encodes a second code over the audio channel. When the first...

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Bibliographische Detailangaben

Hauptverfasser:	HUIBERS, Andrew G, GABAYAN, Kevin N, RAPHAEL, Seth T
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY WIRELESS COMMUNICATIONS NETWORKS
Online-Zugang:	Volltext bestellen
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