Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate
2007-12-25
2007-12-25
Urban, Edward F. (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
C455S240100, C375S345000
Reexamination Certificate
active
10987883
ABSTRACT:
A system and method for performing DC offset correction in a wireless communication receiver during “dead time” are provided. The receiver includes amplifier circuitry that amplifies a received radio frequency (RF) signal, downconversion circuitry that downconverts the received RF signal to provide a downconverted signal, digitization circuitry that digitizes the downconverted signal to provide a digital signal, and digital DC offset correction circuitry enabled during the dead time when there should be no DC content in the downconverted signal. In operation, the digital DC offset correction circuitry detects a DC offset of the digital signal and subtracts the DC offset from the digital signal.
REFERENCES:
patent: 5422889 (1995-06-01), Sevenhans et al.
patent: 5459679 (1995-10-01), Ziperovich
patent: 6009126 (1999-12-01), Van Bezooijen
patent: 6560448 (2003-05-01), Baldwin et al.
patent: 6871055 (2005-03-01), Hirano et al.
patent: 7076225 (2006-07-01), Li et al.
patent: 2002/0197975 (2002-12-01), Chen
patent: 2003/0133518 (2003-07-01), Koomullil et al.
Le Nhan T.
RF Micro Devices, Inc.
Urban Edward F.
Withrow & Terranova , PLLC
LandOfFree
DC offset correction for a wireless communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with DC offset correction for a wireless communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC offset correction for a wireless communication system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3829141