07747281 is referenced by 51 patents and cites 397 patents.

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.

Title
Method for in-band signaling of data over digital wireless telecommunications networks
Application Number
11/970433
Publication Number
7747281 (B2)
Application Date
January 7, 2008
Publication Date
June 29, 2010
Inventor
Rod L Proctor
Seattle
WA, US
Wayne Eatherly
Puyallup
WA, US
Robert Leyendecker
Aloha
OR, US
Joseph Preston
Bainbridge Island
WA, US
Dan A Preston
Bainbridge Island
WA, US
Agent
Stolowitz Ford Cowger
Assignee
Airbiquity
WA, US
IPC
H04B 1/38
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