Method and apparatus for direct digital to radio frequency...

Details Method and apparatus for direct digital to radio frequency... Method and apparatus for direct digital to radio frequency...

2007-12-18

2010-11-02

Nguyen, Patricia (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S251000, C330S20700P

Reexamination Certificate

active

07825724

ABSTRACT:
A method and apparatus for direct conversion of digital data to high power RF signals, known as DDRF. The method and apparatus receive a digital signal, create a digital modulated signal therefrom, and amplify the modulated signal with an H-bridge Power Amplifier for transmission. DDRF uses a multi-level H-bridge amplification circuit to establish a more power efficient digital transmitter.

REFERENCES:
patent: 5398003 (1995-03-01), Heyl et al.
patent: 5617058 (1997-04-01), Adrian et al.
patent: 6351184 (2002-02-01), Miao et al.
patent: 6472933 (2002-10-01), Hsu
patent: 6697271 (2004-02-01), Corzine
patent: 6977546 (2005-12-01), Stapleton
patent: 6977564 (2005-12-01), Kanba et al.
patent: 7492217 (2009-02-01), Hansen et al.
patent: 7576605 (2009-08-01), Lee et al.
patent: 2002/0097085 (2002-07-01), Stapleton
patent: 2003/0210746 (2003-11-01), Asbeck et al.
patent: 2005/0162222 (2005-07-01), Hezar et al.
patent: 2006/0044057 (2006-03-01), Hezar et al.
patent: 2006/0188027 (2006-08-01), Jeckeln et al.
patent: 2008/0278209 (2008-11-01), Kim
Jayaraman, Arun et al.: “Linear High-Efficiency Microwave Power Amplifiers Using Bandpass Delta-Sigma Modulators”, IEEE Microwave and guided wave letters, vol. 8, No. 3, Mar. 31, 1998, all pages.

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