Open AccessA Voice Scrambling System for Testing and Demonstration
Author(s) -
Peter Hess,
Klaus Wirl
Publication year - 2007
Publication title -
cryptography
Language(s) - English
Resource type - Book series
ISSN - 2410-387X
ISBN - 3-540-11993-0
DOI - 10.1007/3-540-39466-4_8
Subject(s) - scrambling , multiplexing , time division multiplexing , computer science , division (mathematics) , computer hardware , electronic engineering , telecommunications , engineering , arithmetic , mathematics , algorithm
The principle of time division multiplexing was known before World War II [Kahn, 76]. But time division multiplexing was not very important, as it was quite complicated to implement this method in analog technique. But since digital memories have become cheaper, more TDM-systems have been introduced. Our system, called Erlangen Voice Scrambling (EVS-) system [Beth, Hess, Wirl, 82] was built for testing and demonstration.
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