Method for in-band signaling of data over digital wireless...

Multiplex communications – Communication over free space

Reexamination Certificate

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C370S352000, C370S496000, C370S522000, C455S563000

Reexamination Certificate

active

07317696

ABSTRACT:
An inband signaling modern communicates digital data over a voice channel of a wireless telecommunications networks. An input receives digital data. An encoder converts the digital data into audio tones that synthesize frequency characteristics of human speech. The digital data is also encoded to prevent voice encoding circuitry in the telecommunications network from corrupting the synthesized audio tones representing the digital data. An output then outputs the synthesized audio tones to a voice channel of a digital wireless telecommunications network.

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