Duplex analog scrambler
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United States of America Patent
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-
May 2, 1989
Grant Date -
N/A
app pub date -
Jun 19, 1987
filing date -
Jun 19, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An analog frequency inversion scrambler employing an exchange of random number seeds between an originating scrambler and an answering scrambler to create two pseudo-random frequency hopping rolling codes has been disclosed. The rolling code used in one direction of a duplex channel is different than the rolling code in the opposite direction and each code is synchronized by periodic synchronization signals.
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