In-band signaling for data communications over digital...

Telecommunications – Transmitter and receiver at same station – Transceiver controlling a separate transceiver or receiver

Reexamination Certificate

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Details

C455S414400, C370S328000, C370S338000, C370S352000, C370S467000, C704S270100

Reexamination Certificate

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08068792

ABSTRACT:
An inband signaling modem communicates digital data over a voice channel of a wireless telecommunications network. 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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