Scrambler key code synchronizer
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United States of America Patent
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-
Feb 28, 1984
Grant Date -
N/A
app pub date -
Jun 29, 1981
filing date -
Jun 29, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for synchronizing the scrambling sequences of communicating scrambler units of a privacy communications system in a reliable and secure manner. The method is particularly adapted for use in noisy or fade prone transmission environments, and permits late entry of authorized third parties to the system. The method utilizes digital sequences interleaved periodically with scrambled analog information to provide reliable synchronization.
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