System and method for descrambling the phase of the carriers...

Details System and method for descrambling the phase of the carriers... System and method for descrambling the phase of the carriers...

2007-09-24

2011-12-06

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Transceivers

Modems

C375S261000, C375S298000, C375S316000

Reexamination Certificate

active

08073041

ABSTRACT:
A system and method that demodulates the phase characteristic of a carrier signal are described. The scrambling of the phase characteristic of each carrier signal includes associating a value with each carrier signal and computing a phase shift for each carrier signal based on the value associated with that carrier signal. The value is determined independently of any input bit value carried by that carrier signal. The phase shift computed for each carrier signal is combined with the phase characteristic of that carrier signal so as to substantially scramble the phase characteristic of the carrier signals. Bits of an input signal are modulated onto the carrier signals having the substantially scrambled phase characteristic to produce a transmission signal with a reduced PAR.

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