Amplitude modulator

Details Amplitude modulator Amplitude modulator

2010-07-01

2011-11-22

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Transmitters

Amplitude modulation

C375S298000

Reexamination Certificate

active

08064540

ABSTRACT:
A method for amplitude modulating a carrier signal according to one embodiment includes splitting the carrier signal into first and second paths; phase modulating the carrier signal on the first path; phase modulating the carrier signal on the second path; combining the phase modulated carrier signal on the first path with the phase modulated carrier signal on the second path for generating an amplitude modulated output signal; and wherein a first feedback loop couples the amplitude modulated output signal to circuitry for phase modulating the carrier signal on the second path but not to circuitry for phase modulating the carrier signal on the first path, the first feedback loop being for reducing a residual phase variation of the amplitude modulated output signal. Additional systems and methods are also presented.

REFERENCES:
patent: 3896395 (1975-07-01), Cox
patent: 4178557 (1979-12-01), Henry
patent: 4574248 (1986-03-01), Snodgrass
patent: 5105164 (1992-04-01), Fisher et al.
patent: 5249201 (1993-09-01), Posner et al.
patent: 5321543 (1994-06-01), Huber
patent: 5365187 (1994-11-01), Hornak et al.
patent: 5742201 (1998-04-01), Eisenberg et al.
patent: 5818298 (1998-10-01), Dent et al.
patent: 5886573 (1999-03-01), Kolanek
patent: 6043707 (2000-03-01), Budnik
patent: 6147553 (2000-11-01), Kolanek
patent: 6275685 (2001-08-01), Wessel et al.
patent: RE37407 (2001-10-01), Eisenberg et al.
patent: 6313703 (2001-11-01), Wright et al.
patent: 6396341 (2002-05-01), Pehlke
patent: 6472934 (2002-10-01), Pehlke
patent: 6567436 (2003-05-01), Yao et al.
patent: 6583910 (2003-06-01), Satoh
patent: 6639509 (2003-10-01), Martinez
patent: 6751265 (2004-06-01), Schell et al.
patent: 6819174 (2004-11-01), Yamakawa et al.
patent: 6825719 (2004-11-01), Barak et al.
patent: 6853244 (2005-02-01), Robinson et al.
patent: 7773695 (2010-08-01), Zhou et al.
patent: 2003/0045264 (2003-03-01), Jeong et al.
patent: 2003/0189744 (2003-10-01), Prosyk
patent: 2003/0194240 (2003-10-01), Mollenauer et al.
patent: 2003/0223462 (2003-12-01), Fu et al.
patent: 2004/0028146 (2004-02-01), Winkler
patent: 2004/0263246 (2004-12-01), Robinson et al.
patent: 2004/0266368 (2004-12-01), Rosnell
patent: 2005/0117191 (2005-06-01), Griffin
patent: 2005/0136864 (2005-06-01), Zipper
patent: 2006/0083144 (2006-04-01), Piede et al.
patent: 2007/0122161 (2007-05-01), Charlet et al.
PCT Preliminary Report from related PCT application No. PCT/US2006/029629 mailed on Feb. 28, 2008.
PCT Search Report and Written Opinion from related PCT application No. PCT/US2006/029629 mailed on Mar. 28, 2007.
Office Action Summary from U.S. Appl. No. 11/207,348 mailed on Jul. 2, 2008.
Office Action Summary from U.S. Appl. No. 11/207,348 mailed on Feb. 25, 2009.
Office Action Summary from U.S. Appl. No. 11/207,348 mailed on Oct. 9, 2009.
Notice of Allowance from U.S. Appl. No. 11/207,348 mailed on Apr. 5, 2010.

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