IN-BAND SIGNALING FOR DATA COMMUNICATIONS OVER DIGITAL WIRELESS TELECOMMUNICATIONS NETWORKS
First Claim
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1. A system for communicating digital data over a voice channel of a digital telecommunications network, comprising:
- an input for receiving digital data;
a processor for converting the digital data into audio tones; and
an output for outputting the audio tones to digital transmission circuitry that encodes the audio tones in a same manner used for encoding voice signals and transmits the encoded audio tones over the same voice channel in the digital telecommunications network used for transmitting the voice signals.
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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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Citations
20 Claims
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1. A system for communicating digital data over a voice channel of a digital telecommunications network, comprising:
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an input for receiving digital data;
a processor for converting the digital data into audio tones; and
an output for outputting the audio tones to digital transmission circuitry that encodes the audio tones in a same manner used for encoding voice signals and transmits the encoded audio tones over the same voice channel in the digital telecommunications network used for transmitting the voice signals. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for communicating data over a voice channel of a telecommunications network, comprising:
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assembling bits of data into one or more packets, the one or more packets formatted for transmission over a wireless voice channel of the telecommunications network;
converting each bit in the one or more packets into at least one unique frequency, the at least one unique frequency falling within a human voice frequency band;
encoding the converted bits with a vocoder; and
transmitting the encoded bits over the voice channel of the telecommunications network. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A system for receiving a data payload over a voice channel of a telecommunications network, comprising:
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a vocoder component for decoding a digital data stream received from the voice channel of the telecommunications network into audio tones, the audio tones representing voice data and the data payload;
a frequency conversion component for converting the audio tones into at least one data packet including a preamble and the data payload;
a packet disassembling component for extracting the data payload from the at least one data packet; and
a storage component for storing the data payload. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification