Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Reexamination Certificate
2007-07-31
2008-08-12
Pham, Chi H. (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
C370S494000, C375S222000
Reexamination Certificate
active
07411982
ABSTRACT:
Simultaneous transmission of voice and data over the voice channel of a digital wireless communications network, such as a “cell phone” network, is reconfigurable on the fly among multiple operating modes, including a lull detection mode in which data is transferred during a lull or quiet period in the voice content. Additionally, control signaling in the voice channel, rather than over a separate control or “overhead” channel is employed to support SVD. The described system operates transparently over any wireless telecommunications system.
REFERENCES:
patent: 7269188 (2007-09-01), Smith
Airbiquity Inc.
Boakye Alexander
Pham Chi H.
Stolowitz Ford Cowger LLP
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