Multiplex communications – Communication over free space
Reexamination Certificate
2008-01-08
2008-01-08
Gelin, Jean (Department: 2617)
Multiplex communications
Communication over free space
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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Internation
Eatherly Wayne
Leyendecker Robert
Preston Dan A.
Preston Joseph
Proctor Rod L.
Airbiquity Inc.
Gelin Jean
Mehra Inder Pal
Stolowitz Ford Cowger LLP
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