TRANSMITTER WITH MULTIPLE MODULATION Russian patent published in 2007 - IPC H04B1/04 

Abstract RU 2305896 C2

FIELD: wireless communications, possible use in receiving-transmitting devices of communication systems.

SUBSTANCE: transmitter contains first modulation block, having first digital signal processor and first analog signal generator, first power amplifier, second modulation block, having second digital signals processor and second analog signal generator, second power amplifier, combining device and transmitting device, at least one first modulation means with non-constant envelope curve, first means for receiving modulation commands, at least one first modulation means with constant envelope curve, first modulation selection means. In the method for generation of transmitted signal, transmitter includes at least first and second modulation blocks, while each one of them implements at least one modulation with non-constant envelope curve and at least one modulation with constant envelope curve.

EFFECT: implemented usage of one and the same transmitting system for circuits with varying modulation.

20 dwg, 2 cl

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RU 2 305 896 C2

Authors

Granstrem Anders

Jokhansson Gunnar

Dates

2007-09-10Published

2003-03-19Filed