Telephonic communications – Line equalization or impedance matching
Reexamination Certificate
2006-01-24
2006-01-24
Tran, Sinh (Department: 2646)
Telephonic communications
Line equalization or impedance matching
C379S399010, C379S394000
Reexamination Certificate
active
06990191
ABSTRACT:
A method and apparatus is provided for impedance matching for an apparatus capable of supporting voice and data. The method includes receiving an input signal having at least one of a voice component, data component, and DC component, and filtering at least a portion of the data component and DC component of the input signal to provide a filtered signal. The method further includes adjusting an input impedance of the apparatus to a first preselected value for the voice band in response to the filtered signal and adjusting the input impedance of the first apparatus from the first preselected value to a second preselected value. The method includes adjusting at least one of a magnitude and phase of the filtered signal to adjust the input impedance to a third value.
REFERENCES:
patent: 4577255 (1986-03-01), Martin
patent: 5802169 (1998-09-01), Frantz et al.
patent: 6477249 (2002-11-01), Williamson et al.
patent: 6625278 (2003-09-01), Hendricks et al.
Anderson Jeffrey Jay
Miller Merle L.
Schopfer Walter S.
Briney III Walter F
Legerity Inc.
Tran Sinh
Williams Morgan & Amerson P.C.
LandOfFree
Method and apparatus for handling voice and data signals 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 apparatus for handling voice and data signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for handling voice and data signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3575482