Pulse or digital communications – Systems using alternating or pulsating current – Angle modulation
Reexamination Certificate
2011-07-12
2011-07-12
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Angle modulation
C375S265000, C375S269000, C455S313000, C348S725000
Reexamination Certificate
active
07978782
ABSTRACT:
Methods and systems for polar modulation using a digital direct frequency synthesizer (DDFS) are disclosed and may comprise generating a phase modulated signal in a DDFS, amplitude modulating the generated phase modulated signal in a non-linear device and transmitting the signal via a wireless medium. A processor may control the generation of the phase and amplitude modulated signals. The non-linear device may comprise a non-linear power amplifier or a mixer. The method may also comprise generating a first phase modulated signal in a first DDFS and generating a second phase modulated signal in a second DDFS, or in a single DDFS with two integrated digital-to-analog converters, and upconverting and combining the first and second phase modulated signals and amplitude modulating the combined upconverted signals in a non-linear device. A processor may be enabled to control the generation of the first and second phase modulated signals.
REFERENCES:
patent: 6163259 (2000-12-01), Barsumian et al.
patent: 6344871 (2002-02-01), Liu et al.
patent: 6359506 (2002-03-01), Camp et al.
patent: 6483388 (2002-11-01), Khan
patent: 6794937 (2004-09-01), Timaru et al.
patent: 7123664 (2006-10-01), Matero
patent: 7130287 (2006-10-01), Nounin et al.
patent: 7161613 (2007-01-01), Liu et al.
patent: 7224302 (2007-05-01), Dornbusch
patent: 7236542 (2007-06-01), Matero
patent: 7324789 (2008-01-01), Jensen
patent: 7358885 (2008-04-01), Maxim et al.
patent: 7363014 (2008-04-01), Nakamura et al.
patent: 7421037 (2008-09-01), Shakeshaft et al.
patent: 7424064 (2008-09-01), Shakeshaft et al.
patent: 7425995 (2008-09-01), Johnson
patent: 7447493 (2008-11-01), Johnson
patent: 7515652 (2009-04-01), Jensen
patent: 7580964 (2009-08-01), Merlo et al.
patent: 7599676 (2009-10-01), Maxim
patent: 2003/0227342 (2003-12-01), Liu
patent: 2004/0017858 (2004-01-01), Rozenblit et al.
patent: 2004/0185781 (2004-09-01), Moloudi
patent: 2005/0266818 (2005-12-01), Johnson et al.
patent: 2006/0025099 (2006-02-01), Jung et al.
patent: 2007/0019757 (2007-01-01), Matero
patent: 2007/0027943 (2007-02-01), Jensen et al.
patent: 2007/0076783 (2007-04-01), Dishman et al.
patent: 2007/0174371 (2007-07-01), Merlo et al.
patent: 2007/0290749 (2007-12-01), Woo et al.
patent: 2008/0123777 (2008-05-01), Trager et al.
patent: 2008/0130800 (2008-06-01), Maxim et al.
patent: 2008/0132189 (2008-06-01), Maxim et al.
patent: 2008/0143594 (2008-06-01), Wang et al.
patent: 2008/0180579 (2008-07-01), Maxim
patent: 2008/0181337 (2008-07-01), Maxim
patent: 2008/0181340 (2008-07-01), Maxim
patent: 2008/0205541 (2008-08-01), Rofougaran
patent: 2008/0205542 (2008-08-01), Rofougaran
patent: 2008/0205543 (2008-08-01), Rofougaran
patent: 2008/0205549 (2008-08-01), Rofougaran
patent: 2008/0207139 (2008-08-01), Rofougaran
patent: 2008/0233871 (2008-09-01), Rofougaran et al.
patent: 2008/0233873 (2008-09-01), Rofougaran et al.
patent: 2009/0067541 (2009-03-01), Byun et al.
patent: 2009/0080541 (2009-03-01), Rofougaran
patent: 2009/0081985 (2009-03-01), Rofougaran et al.
patent: 2009/0134918 (2009-05-01), Tzeng
Broadcom Corporation
Fan Chieh M
Garcia Santiago
McAndrews Held & Malloy Ltd.
LandOfFree
Method and system for polar modulation using a direct... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for polar modulation using a direct..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for polar modulation using a direct... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2622326