Cryptography – Communication system using cryptography – Wireless communication
Patent
1996-08-07
2000-06-20
Gregory, Bernarr E.
Cryptography
Communication system using cryptography
Wireless communication
380236, 380252, 380275, 380276, 380 38, 380 59, H04L 900
Patent
active
06078668&
ABSTRACT:
An apparatus and method for concealing data bursts in an analog scrambler using audio repetition. What otherwise would be periodic data bursts appearing at the audio output are replaced with samples from audio portions of the multiplexed signal. Preferably the replaced audio samples come from immediately past portions of the audio of the signal. The data bursts are therefore effectively concealed from the audio output which improves on the degradation of audio otherwise caused by the data bursts that are mixed in periodically with the audio portions of the signal.
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IBM Technical Disclosure Bulletin, vol. 23 No. 1 Jun. 1980 Digital Speech Scrambler--P.A. Franaszek.
Gregory Bernarr E.
Transcrypt International, Inc.
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