Apparatus and method for improving efficiency of a power...

Details Apparatus and method for improving efficiency of a power... Apparatus and method for improving efficiency of a power...

2004-10-25

2008-08-19

Jackson, Blane J (Department: 2618)

Telecommunications

Transmitter

Noise or interference elimination

C455S103000, C455S126000, C330S126000

Reexamination Certificate

active

07415251

ABSTRACT:
A power amplification apparatus and method for amplifying a baseband signal having a high peak-to-average power ratio (PAR) are provided. The power amplification apparatus and method comprise a signal generation section for generating a peak-reduced signal obtained by subtracting a peak value from the baseband signal and an error signal representing a difference between the baseband signal and the peak-reduced signal and for outputting the generated signals; a peak-reduced signal amplification section for amplifying the peak-reduced signal output from the signal generation section in a radio frequency band; an error correction amplification section for amplifying the error signal output from the signal generation section in the radio frequency band; and a summer for coupling and outputting the signal amplified by the peak-reduced signal amplification section and the signal amplified by the error correction amplification section.

REFERENCES:
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patent: 6396341 (2002-05-01), Pehlke
patent: 6624694 (2003-09-01), Ma et al.
patent: 7136628 (2006-11-01), Yang et al.
patent: 2001/0043118 (2001-11-01), Suzuki et al.
patent: 2004/0097201 (2004-05-01), Yoon
patent: 2004/0266368 (2004-12-01), Rosnell
patent: 2006/0114060 (2006-06-01), Hellberg et al.

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