Staggered pulse acquisition method and apparatus

Details Staggered pulse acquisition method and apparatus Staggered pulse acquisition method and apparatus

2007-07-03

2007-07-03

Barrón, Jr., Gilberto (Department: 2132)

Cryptography

Electric signal masking

C375S137000, C375S145000, C375S149000, C370S515000, C341S178000

Reexamination Certificate

active

09994945

ABSTRACT:
A transmitter employing a cryptographic algorithm and key generates and transmits a staggered pulse signal that includes a plurality of high-power pulses that are part of a pseudonoise (PN) code. The high-power pulses are separated by a group of low-power chips and the time interval between the high-power pulses is varied according to the cryptographic algorithm and key. A receiver, employing a corresponding cryptographic algorithm and key receives the signal and correlates it with a locally generated code that is modified according to the cryptographic algorithm and key to detect the phase of the received PN code. The receiver also can include a matched filter configured according to the cryptographic algorithm and key to detect the sequence of high-power pulses in the received signal.

REFERENCES:
patent: 4049953 (1977-09-01), Evans, Jr.
patent: 4638357 (1987-01-01), Heimbach
patent: 4931800 (1990-06-01), Ward
patent: 4972431 (1990-11-01), Keegan
patent: 5535278 (1996-07-01), Cahn et al.
patent: 5822429 (1998-10-01), Casabona et al.
patent: 5937000 (1999-08-01), Lee et al.
patent: 6411664 (2002-06-01), Usui et al.
patent: 6965634 (2005-11-01), Clark

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