Amplifiers – Hum or noise or distortion bucking introduced into signal...
Reexamination Certificate
2006-08-22
2006-08-22
Nguyen, Linh Van (Department: 2819)
Amplifiers
Hum or noise or distortion bucking introduced into signal...
C330S151000
Reexamination Certificate
active
07095277
ABSTRACT:
The present invention relates to an arrangement and a method for amplifying high frequency RF signals having amplitude and phase variations. The objective problem of the present invention is to provide an efficient power amplifier for amplifying high frequency RF signals. The object is achieved by introducing a Signal Conditioning Device (SCD) that converts baseband signals SI and SQ into tri-states signals STI, STQ. The tri-states signals STI, STQ are time multiplexed, which results in that a single power amplifier can be used to amplify the signal on the In-phase (I) channel and the signal on the Quadrature (Q) channel. Hence, the present invention does not require a power combiner.
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Patent Abstracts of Japan, vol. 2000, No. 19, Jun. 5, 2001 & JP 2001 053627 A (Matsushita Electric Ind Co Ltd) Feb. 23, 2001.
Faulkner Michael
Zhou Shu-Ang
Nguyen Linh Van
Nixon & Vanderhye P.C.
Telefonaktiebolaget LM Ericsson (publ)
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