Title:
LINE TERMINATOR UNIT FOR A SUBSCRIBER LINE
Document Type and Number:
WIPO Patent Application WO2000019767
Kind Code:
A3
Abstract:
he invention relates to a line terminator unit (100) for a subsc riber line (4) which transmits and receives broad-band signals via a single subscriber line. Said broad-band signals are composed of a broad-band or narrow-band low-frequency voice signal and a broad-band higher-frequency data signal. The frequency bands of the voice signal and the data signal substantially do not overlap. The inventive line terminator unit is provided with a digital frequency separating filter in the digital part of the line terminator unit. Said frequency separating filter is arranged in the digital part of the line terminator unit and serves to distinguish between the low-frequency voice signal and the higher-frequency data signal. The line terminator unit is especially useful for separating an ISDN or POTS voice signal from an ADSL data signal.
Inventors:
HAUPTMANN JOERG (AT)
PREITNEGGER MANFRED (AT)
RUDOLF HANS-WERNER (DE)
KUNISCH PAUL (DE)
KROTTENDORFER GERALD (AT)
FRENZEL RUDI (DE)
TERSCHLUSE MARKUS (DE)
SCHMUECKING DIRK (AT)
PREITNEGGER MANFRED (AT)
RUDOLF HANS-WERNER (DE)
KUNISCH PAUL (DE)
KROTTENDORFER GERALD (AT)
FRENZEL RUDI (DE)
TERSCHLUSE MARKUS (DE)
SCHMUECKING DIRK (AT)
Application Number:
PCT/DE1999/003214
Publication Date:
March 22, 2001
Filing Date:
September 30, 1999
Export Citation:
Assignee:
SIEMENS AG (DE)
HAUPTMANN JOERG (AT)
PREITNEGGER MANFRED (AT)
RUDOLF HANS WERNER (DE)
KUNISCH PAUL (DE)
KROTTENDORFER GERALD (AT)
FRENZEL RUDI (DE)
TERSCHLUSE MARKUS (DE)
SCHMUECKING DIRK (AT)
HAUPTMANN JOERG (AT)
PREITNEGGER MANFRED (AT)
RUDOLF HANS WERNER (DE)
KUNISCH PAUL (DE)
KROTTENDORFER GERALD (AT)
FRENZEL RUDI (DE)
TERSCHLUSE MARKUS (DE)
SCHMUECKING DIRK (AT)
International Classes:
H04B3/02; H04B3/23; H04L25/02; H04M11/00; H04Q3/42; H04Q11/04; (IPC1-7): H04Q11/04; H04M11/06; H04B3/21
Domestic Patent References:
| WO1997020396A2 | 1997-06-05 | |||
| WO1998032241A2 | 1998-07-23 |
Foreign References:
| EP0795977A2 | 1997-09-17 | |||
| EP0643477A2 | 1995-03-15 | |||
| EP0923221A1 | 1999-06-16 | |||
| EP0840474A2 | 1998-05-06 | |||
| EP0889614A2 | 1999-01-07 |
Other References:
SUGIMOTO S ET AL: "DESIGN OF 2B1Q TRANSCEIVER FOR ISDN SUBSCRIBER LOOPS", INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC '89), IEEE, vol. -, 11 June 1989 (1989-06-11), NEW YORK, US, pages 228 - 232, XP000075463
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