Side-channel communications in simultaneous voice and data transmission
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United States of America Patent
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Apr 9, 1996
Grant Date -
N/A
app pub date -
Nov 15, 1993
filing date -
Nov 15, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
In a simultaneous voice and data communication system, a stream of signal points is partitioned into a plurality of symbol blocks, each symbol block including a data segment and a control segment. The data segment carries information from a user, i.e., user data, while the control segment provides control information. A voice signal is then added to at least a portion, or all, of the signal points of each symbol block to provide for simultaneous voice and data transmission to an opposite endpoint. The control information may represent information from a secondary data source, and/or may include information about the characteristics of the succeeding block, e.g., the user data rate, and information pertaining to characteristics of the communications channel.
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