Switching power amplifier for quantized signals

Details Switching power amplifier for quantized signals Switching power amplifier for quantized signals

2011-06-28

2011-06-28

Choe, Henry K (Department: 2817)

Amplifiers

Miscellaneous

Amplifier protection means

C330S251000

Reexamination Certificate

active

07969242

ABSTRACT:
An apparatus and method for communications are disclosed. The apparatus may include an a quantizer having three levels, and a switching power amplifier configured to drive a load having first and second terminals, wherein the switching power amplifier is further configured to switch the first and second terminals between first and second power rails only if the output from the quantizer is at one of the three levels.

REFERENCES:
patent: 7078964 (2006-07-01), Risbo et al.
patent: 7205917 (2007-04-01), Magrath
patent: 2002/0075068 (2002-06-01), Hsu
patent: 2002/0186155 (2002-12-01), Olson et al.
patent: 2003/0079131 (2003-04-01), Reefman
patent: 2008/0111619 (2008-05-01), Matamura
International Search Report—PCT/US2009/051229—International Search Authority, European Patent Office, Oct. 16, 2009.
Written Opinion—PCT/US2009/051229, International Search Authority, European Patent Office, Oct. 16, 2009.

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