Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-05-24
2011-05-24
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S141000, C375S147000, C375S148000, C375S149000, C375S150000, C375S367000, C380S030000, C380S044000, C380S045000, C380S046000, C380S047000
Reexamination Certificate
active
07949032
ABSTRACT:
A secure information transmission system includes one or more transmitters and one or more receivers. The transmission waveform employed includes highly randomized, independent stochastic processes, and is secured as a separate entity from the information it carries. The signal, using novel modulation methodology reducing impulse responses, has a paucity of spectral information and may be detected, acquired and demodulated only by communicants generating the necessary receiving algorithm coefficients. The physical area of signal reception is restricted to that of each intended communicant, reception areas following movements of mobile communicants. A unique instant in time is used as basis for communications keys to the securing algorithms dynamically generated on a one-time basis and never exchanged or stored by communicants. Technology is applicable to both fixed and mobile communications and may be applied to communications systems using wireless, fiber-optic, copper, acoustic and any other man-made or naturally occurring transmission media.
REFERENCES:
patent: 5440491 (1995-08-01), Kawano et al.
patent: 6160858 (2000-12-01), Hindman et al.
patent: 6263013 (2001-07-01), Hendrickson
patent: 6567486 (2003-05-01), Gordon et al.
patent: 6628675 (2003-09-01), Neufeld
patent: 6785321 (2004-08-01), Yang et al.
patent: 7130332 (2006-10-01), Shenoi
patent: 7313164 (2007-12-01), Wilson et al.
patent: 7440988 (2008-10-01), Grobert
patent: 7558356 (2009-07-01), Pollman et al.
patent: 2002/0112855 (2002-08-01), Arndt et al.
patent: 2002/0193945 (2002-12-01), Tan et al.
patent: 2004/0039918 (2004-02-01), Prashanth
patent: 2004/0062299 (2004-04-01), McDonough et al.
patent: 2004/0233874 (2004-11-01), Baker
patent: 2005/0185627 (2005-08-01), Bolgiano et al.
patent: 2006/0159260 (2006-07-01), Pereira et al.
Edell Shapiro & Finnan LLC
Fan Chieh M
Hughes Eboni
LandOfFree
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