Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate
2006-08-01
2006-08-01
Tran, Quoc (Department: 2643)
Telephonic communications
Subscriber line or transmission line interface
C379S399020, C379S400000, C379S413010
Reexamination Certificate
active
07085372
ABSTRACT:
Method and apparatus for transmitting a transmission signal via a two-core line, in particular a telephone line, in which case, with the aid of corresponding transmission devices (2, 3), two partial signals are generated and are transmitted via a respective core (A, B) of the line and the transmission signal is formed by the alternating-current difference between the two partial signals. In order to suppress common-mode components in the partial signals, a calibration is carried out in such a way that the transmission devices (2, 3) output essentially the same output level.
REFERENCES:
patent: 4588858 (1986-05-01), Watts et al.
patent: 5376904 (1994-12-01), Wong
patent: 5384854 (1995-01-01), Downs et al.
patent: 5696777 (1997-12-01), Hofsaess
patent: 5943177 (1999-08-01), Mathews et al.
patent: 43 43 950 (1995-06-01), None
patent: 42 05 241 (1997-12-01), None
B. Roessler et al.,Journal of Solid-State Circuits, 23(2):311-317 (1988).
English Translation of PCT International Preliminary Examination Report, dated Mar. 27, 2001, 5 pgs.
Corless Peter F.
Edwards Angell Palmer & & Dodge LLP
Infineon - Technologies AG
Jensen Steven M.
Tran Quoc
LandOfFree
Method and device for transmitting a transmission signal via... 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 device for transmitting a transmission signal via..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for transmitting a transmission signal via... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3687151