Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2005-03-15
2009-12-15
Jackson, Blane J (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S333000
Reexamination Certificate
active
07634247
ABSTRACT:
A method for sampling an analogue radiofrequency signal comprising reception of the analogue radiofrequency signal, sending of the received signal on two analogue channels, each channel performing a first signal sampling operation, including a filtering step eliminating signal frequencies that could fold on the useful signal during sampling such that the sampled signal represents a filtered version of the received signal, wherein the sampling frequency is taken to be equal to the frequency of the signal carrier divided by a factor Ndiv1+½, Ndiv1 being an integer number, to bring the useful signal to half of the sampling frequency after sampling.
REFERENCES:
patent: 5640698 (1997-06-01), Shen et al.
patent: 6957057 (2005-10-01), Das
patent: 7006813 (2006-02-01), Staszewski et al.
patent: 2005/0233725 (2005-10-01), Muhammad et al.
patent: 2007/0264960 (2007-11-01), Lin et al.
patent: 0 961 406 (1999-05-01), None
International Search Report from corresponding International Application No. PCT/EP2005/002716, filed Mar. 15, 2005.
Muhammad K. et al,Direct RF Sampling Mixer With Recursive Filtering in Charge Domain, Circuits and Systems, 2004, ISCAS '04 Proceedings of the 2004 International Symposium on Vancouver, BC, Canada , May 23-26, 2004, pp. I-557, XP010719181.
Andre Eric
Joet Loïc
Saias Daniel
Jackson Blane J
Jorgenson Lisa K.
Morris James H.
STMicroelectronics S.A.
Wolf Greenfield & Sacks P.C.
LandOfFree
Method of sampling an analogue radiofrequency signal 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 of sampling an analogue radiofrequency signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of sampling an analogue radiofrequency signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4077040