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US 8,805,723 B2Granted
Acoustically transmitting a resource identifier in multiple concurrent segments
AssigneeIVIU Technologies, Inc.
InventorsHans M. Glitsch, Ajay Shah
Life of this patent
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Abstract
A plurality of audio signals are broadcasted concurrently on a plurality of substantially separate audio channels. Each of the audio channels has a center frequency greater than approximately 16 kHz. Broadcasting the audio signals causes one or more clients to automatically retrieve a resource from a resource location. The plurality of audio signals collectively encode a resource identifier that describes the resource location.
Claims15
A method comprising:
- receiving a resource identifier including a string of bits that describe a resource location, wherein the resource identifier has a length of at least twenty four bits;
- segmenting the resource identifier into at least three parts each including a contiguous segment of the at least twenty four bits;
- encoding each of the at least three parts thereby providing at least three encoded parts;
- modulating each one of the at least three encoded parts onto one of a plurality of audio channels, each one of the plurality of audio channels having a center frequency greater than about 16 kHz and separated by at least 1.5 kHz from each other one of the plurality of audio channels, thereby providing at least three modulated signals;
- and
- concurrently broadcasting, via a loudspeaker, each of the at least three signals.
3 more elements
Dependencies are inferred from the claim text.