Apparatus and method for reducing the crest factor of single...

Details Apparatus and method for reducing the crest factor of single... Apparatus and method for reducing the crest factor of single...

2006-01-05

2009-02-03

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C370S206000

Reexamination Certificate

active

07486738

ABSTRACT:
An apparatus for reducing the crest factor of a multi-carrier transmission system. The apparatus comprises a plurality of single carrier crest factor reduction circuits. Each of the single carrier crest factor reduction circuits receives a selected one of a plurality of single carrier signals and generates a crest factor reduced (CFR) single carrier signal. The apparatus also comprises an up-converter for up-converting each of the CFR single carrier signals to a selected frequency and combining the up-converted CFR single carrier signals to thereby produce a multi-carrier signal. The apparatus further comprises a first multi-carrier crest factor reduction circuit for receiving the multi-carrier signal and generating a first crest factor reduced (CFR) multi-carrier signal.

REFERENCES:
patent: 2004/0264595 (2004-12-01), Kim
patent: 2005/0141408 (2005-06-01), Anvari

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