Linear amplifier using digital feedforward

Details Linear amplifier using digital feedforward Linear amplifier using digital feedforward

2006-12-28

2008-10-21

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C455S118000, C375S297000

Reexamination Certificate

active

07439895

ABSTRACT:
A signal amplification system including a plurality of digital signal inputs coupled to a signal combination devices, wherein each of the plurality of digital signal inputs correspond to a separate digital signal, a signal conversion device coupled to the signal combination device, an up-conversion device coupled to the signal conversion device, and an amplification unit coupled to the up-conversion device. The plurality of signals are combined into a combined digital signal in the signal combination device, the combined digital signal is converted into a combined analog signal in the signal conversion device, the combined analog signal is up-converted into an up-converted analog signal in the up-conversion device, and the up-converted analog signal is amplified into an amplified output in the amplification device. Various systems and methods to combine and amplify digital signals and analog signals.

REFERENCES:
patent: 6662018 (2003-12-01), Kintis et al.
patent: 6980148 (2005-12-01), Bahai
patent: 2003/0058960 (2003-03-01), Lee
patent: 2006/0008026 (2006-01-01), Wood et al.
patent: 2006/0094376 (2006-05-01), Lee et al.

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