Devices for emitting or receiving signals encrypted by...

Details Devices for emitting or receiving signals encrypted by... Devices for emitting or receiving signals encrypted by...

2006-07-04

2006-07-04

Barroń, Jr., Gilberto (Department: 2132)

Cryptography

Key management

Having particular key generator

C380S268000, C380S263000

Reexamination Certificate

active

07072469

ABSTRACT:
A sender device for sending an encrypted signal, the device comprising a chaos generator producing an encrypted electrical signal and a feedback loop comprising delayline-forming means, non-linear means, and mixer means which receive the loop signal on one input and the signal to be encrypted on another input, wherein the feedback loop includes filter-forming means which limit the spectrum of the encrypted signals to one or more spectrum bands.

REFERENCES:
patent: 5379346 (1995-01-01), Pecora et al.
patent: 5729607 (1998-03-01), DeFries et al.
patent: 6049614 (2000-04-01), Kim
patent: 6704420 (2004-03-01), Goedgebuer et al.

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