Telecommunications – Transmitter – Angle modulation
Reexamination Certificate
2005-10-31
2009-06-23
Nguyen, Duc M (Department: 2618)
Telecommunications
Transmitter
Angle modulation
C455S111000, C455S114300, C375S302000, C375S308000
Reexamination Certificate
active
07551904
ABSTRACT:
An method and apparatus for power amplification in a mobile communication system, wherein a signal converter for receives signals from a baseband-side, modulates the received signals into oversampled baseband digital signals, and generates signals having a constant envelope with the oversampled base band digital signals, an up-converter up-converts the generated signals having the constant envelope to Radio Frequency (RF) signals for output, and a power amplifier amplifies the RF signals according to system setup levels and outputs envelope signals of a predetermined level.
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Cha Jeong-Hyeon
Kim Bum-Man
Lee Dong-Geun
Nguyen Duc M
Postech Foundation
Samsung Electronics Co,. Ltd
The Farrell Law Firm, LLP
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