Cryptography – Key management – Having particular key generator
Patent
1994-12-22
1997-01-28
Buczinski, Stephen C.
Cryptography
Key management
Having particular key generator
380 21, H04N 7167
Patent
active
055984720
ABSTRACT:
A scrambled analog signalling system having a source of analog signals to be sent to a receiving device is comprised of a multiple stage charge coupled device (66) having analog signal input terminals connected to receive analog signal samples from said source of analog signals. The multiple stage charge coupled device having N stages, corresponding stage taps, and an input clock signal. A shuffling circuit (68) having a first input connected to the N stage taps for receiving the analog signal samples and second input for receiving a random seed (67) signal to cause a random reordering of incoming analog signal samples, a source of random seed signals connected to the second input, and an output device (72) connected to receive a stream of the analog signal samples which have been shuffled according to a mapping code carried by the random seed signal. A filter for reconstructing the analog signal in its scrambled format, and a transmission system for conveying the analog signal in its scrambled format to the receiving device.
REFERENCES:
patent: 4600942 (1986-07-01), Field et al.
patent: 4663659 (1987-05-01), Blatter
patent: 4901349 (1990-02-01), Metzger et al.
Schuchman Leonard
Weinberg Aaron
Buczinski Stephen C.
Stanford Telecommunications, Inc.
Zegeer, Esquire Jim
LandOfFree
Charge-coupled-device based all-analog wave form scrambling with does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Charge-coupled-device based all-analog wave form scrambling with, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charge-coupled-device based all-analog wave form scrambling with will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-946350