Point-to-point secure modem and method
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United States of America Patent
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Oct 8, 2002
Grant Date -
Nov 22, 2001
app pub date -
Apr 14, 1998
filing date -
Apr 14, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A modem includes symbol converting unit and processing unit. The symbol converting unit converts between binary data and symbol data in accordance with a first constellation which is a transformed version of a standard constellation and the processing unit process the symbol data for transmission and produce symbol data from received signals. Alternatively, the symbol converting unit has at least two constellations to be selected.
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