Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate
2006-04-04
2006-04-04
Pezzlo, John (Department: 2662)
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
C370S509000, C380S210000, C725S106000
Reexamination Certificate
active
07023881
ABSTRACT:
A system and method have been provided to increase security in scrambled communications by periodically changing the seed masks used to generate the scrambling algorithms at the transmitter and receiver. The scrambling algorithm is changed by periodically modifying the seed masks which establishes the initial state of the scrambling algorithm generators. The same seed mask key is passed through an auxiliary communication channel to the receiver to insure that matching descrambling algorithms are generated.
REFERENCES:
patent: 4606042 (1986-08-01), Kahn et al.
patent: 4710921 (1987-12-01), Ishidoh et al.
patent: 4771463 (1988-09-01), Beeman
patent: 4953211 (1990-08-01), Repton et al.
patent: 5029207 (1991-07-01), Gammie
patent: 5251205 (1993-10-01), Callon et al.
patent: 5319707 (1994-06-01), Wasilewski et al.
patent: 5490252 (1996-02-01), Macera et al.
patent: 5568471 (1996-10-01), Hershey et al.
patent: 5608734 (1997-03-01), Sandler et al.
patent: 5661763 (1997-08-01), Sands
patent: 5666108 (1997-09-01), Duffy
patent: 5777992 (1998-07-01), Lokhoff
patent: 5778000 (1998-07-01), Dosiere et al.
patent: 5787171 (1998-07-01), Kubota et al.
patent: 5787180 (1998-07-01), Hall et al.
patent: 5793976 (1998-08-01), Chen et al.
patent: 5835602 (1998-11-01), Lang
patent: 5854699 (1998-12-01), Olshansky
patent: 5875396 (1999-02-01), Stockton et al.
patent: 5982743 (1999-11-01), Kusano
patent: 6006069 (1999-12-01), Langston
patent: 6061451 (2000-05-01), Muratani et al.
patent: 6584199 (2003-06-01), Kim et al.
patent: 6836485 (2004-12-01), Bendak et al.
patent: 6847657 (2005-01-01), Bendak et al.
patent: 6912261 (2005-06-01), Aslanis et al.
patent: 2002/0057713 (2002-05-01), Bagchi et al.
Bendak George Beshara
Sorgi Alan Michael
Applied Micro Circuits Corporation
Cho Hong Sol
INCAPLAW
Meador Terrance A.
Pezzlo John
LandOfFree
System and method for selectively scrambling... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for selectively scrambling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for selectively scrambling... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3611285