Multiplexing and demultiplexing of narrowband and broadband...

Details Multiplexing and demultiplexing of narrowband and broadband... Multiplexing and demultiplexing of narrowband and broadband...

2005-08-30

2005-08-30

Tran, Sinh (Department: 2644)

Telephonic communications

Line equalization or impedance matching

C379S093010, C379S093050

Reexamination Certificate

active

06937719

ABSTRACT:
The invention relates to the implementation of narrowband and broadband services in a telecommunications network. A splitter element is connected to a transmission link, the splitter element comprising a passive low-pass filter block connected between the transmission link and a first interface, a high-pass filter unit connected between the transmission link and a second interface, and discrete impedance converting means for adapting the first interface to the characteristic impedance of the transmission link. In order that the impedance matching required by the low-pass filter block may be implemented in an economical way yet maintaining the service quality, the impedance converting means are entirely placed between the interface of the low-pass filter block on the transmission link side and the first interface.

REFERENCES:
patent: 4443662 (1984-04-01), Nakhla
patent: 4794353 (1988-12-01), Broyde
patent: 5528630 (1996-06-01), Ashley et al.
patent: 5623543 (1997-04-01), Cook
patent: 6418221 (2002-07-01), Snow et al.
patent: 0677938 (1995-10-01), None
patent: 0749272 (1996-11-01), None
Leonard T. Burton; RC-Active Circuits Theory and Design, Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1980.
John Cook and Phil Sheppard; “ADSL and VADSL Splitter Design and Telephony Performance”, IEEE Journal on Selected Areas in Communications, vol. 13, No. 9, pp. 1634-1642, Dec. 1995.
International Search Report for PCT/FI00/00112.

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