Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1988-08-15
1990-04-03
Buczinski, Stephen C.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 38, 380 47, 380 48, 380 49, H04K 104
Patent
active
049146963
ABSTRACT:
An intermediate scrambling device for a radiotelephone system is disclosed by which it is possible to establish and maintain scrambled communications between an originating scrambler terminal and the most distant companion scrambler on the circuit. The intermediate scrambler may establish and maintain the scrambled communications if it is the most distant scrambler, or it may become transparent to a more distant scrambler.
REFERENCES:
patent: 4182933 (1980-01-01), Rosenblum
patent: 4228321 (1980-10-01), Flanagan
patent: 4349695 (1982-09-01), Morgan et al.
patent: 4392021 (1983-07-01), Slate
patent: 4411017 (1983-10-01), Talbot
patent: 4433211 (1984-02-01), McCalmont et al.
patent: 4449247 (1984-05-01), Waschka, Jr.
patent: 4549308 (1985-10-01), LoPinto
patent: 4555805 (1985-11-01), Talbot
patent: 4578532 (1986-03-01), Markwitz
patent: 4638298 (1987-01-01), Spiro
patent: 4815128 (1989-03-01), Malek
patent: 4827507 (1989-05-01), Marry et al.
Datotek, Inc.: Product Data Sheet 9-78-1550HM, "Encryption DVP-810".
Datotek, Inc.: Product Data Sheet 12-78-1000SE, "Encryption DV-505/TDS".
Datotek, Inc.: Product Data Sheet (4/78), -2500-MP, "Model DV-505 Voice Security System", 1977.
Dudczak Cary M.
McGuire Mark W.
Tennant David T.
Buczinski Stephen C.
Gregory Bernarr Earl
Hackbart Rolland R.
Jenski Raymond A.
Motorola Inc.
LandOfFree
Communications system with tandem scrambling devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Communications system with tandem scrambling devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications system with tandem scrambling devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1363529