Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2005-02-15
2005-02-15
Raymond, Edward (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C455S296000
Reexamination Certificate
active
06856925
ABSTRACT:
When a sample stream is decimated, frequency components from outside of a desired frequency band are aliased into the desired band, causing interference and loss of information. Different decimating ratios result in different frequencies aliasing into the desired frequency band. A current-mode sampling mixer800with capacitor banks811and812that are controlled by a digital control unit820with a capability to integrate and decimate an RF current at different decimating ratios is able to measure the frequency spectrum with different decimating ratios. The measured frequency spectrum is then analyzed to detect the presence of interferers aliased into the desired frequency band. The interferers can then be eliminated or avoided.
REFERENCES:
patent: 5661810 (1997-08-01), Chahabadi et al.
patent: 5872540 (1999-02-01), Casabona et al.
patent: 6131013 (2000-10-01), Bergstrom et al.
patent: 6148048 (2000-11-01), Kerth et al.
patent: 6304594 (2001-10-01), Salinger
patent: 6671338 (2003-12-01), Gamal et al.
patent: 6700388 (2004-03-01), Mayor et al.
patent: 6785523 (2004-08-01), Husted et al.
patent: 20020081988 (2002-06-01), Parker
patent: 20030069911 (2003-04-01), Pllrainen
Feygin Gennady
Muhammad Khurram
Staszewski Robert B.
Brady III Wade James
Neerings Ronald O.
Raymond Edward
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
LandOfFree
Active removal of aliasing frequencies in a decimating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Active removal of aliasing frequencies in a decimating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active removal of aliasing frequencies in a decimating... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3457618