Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Reexamination Certificate
2008-04-01
2008-04-01
Yao, Kwang Bin (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
C370S488000, C370S497000, C379S093050
Reexamination Certificate
active
09806415
ABSTRACT:
The invention relates to a line terminating device for a subscriber line which transmits and receives broadband signals via a single subscriber line, a broadband signal being composed of a broadband or narrowband audio-frequency data signal and a broadband higher-frequency data signal and the frequency bands of the voice signal and of the data signal essentially not overlapping. The line terminating device according to the invention has a digital frequency separating filter in the digital section of the line terminating device, which is arranged in the digital section of the line terminating device so that the audio-frequency voice signal is separated from the higher-frequency data signal. In particular, the line terminating device is suitable for separating an ISDN or POTS voice signal from an ADSL data signal.
REFERENCES:
patent: 4644526 (1987-02-01), Wu
patent: 5400322 (1995-03-01), Hunt et al.
patent: 5495483 (1996-02-01), Grube et al.
patent: 5757803 (1998-05-01), Russell et al.
patent: 5781728 (1998-07-01), Rybicki et al.
patent: 5790539 (1998-08-01), Chao et al.
patent: 5841841 (1998-11-01), Dodds et al.
patent: 5889856 (1999-03-01), O'Toole et al.
patent: 5960066 (1999-09-01), Hartmann et al.
patent: 5982785 (1999-11-01), Woerner et al.
patent: 6005854 (1999-12-01), Xu et al.
patent: 6144659 (2000-11-01), Nye et al.
patent: 6414952 (2002-07-01), Foley
patent: 6567519 (2003-05-01), Ham
patent: 6748076 (2004-06-01), Elo
patent: 6925091 (2005-08-01), Sjoberg et al.
patent: 7164708 (2007-01-01), Hauptmann et al.
patent: 0 643 477 (1994-09-01), None
patent: 0643477 (1995-03-01), None
patent: 0 795 977 (1997-02-01), None
patent: 0795977 (1997-09-01), None
patent: 0 840 474 (1997-10-01), None
patent: 0840474 (1998-05-01), None
patent: 0923221 (1999-06-01), None
patent: 6-205452 (1994-07-01), None
patent: 10-210510 (1998-08-01), None
patent: 11-285035 (1999-10-01), None
patent: WO 97/20396 (1996-11-01), None
patent: WO 9720396 (1997-06-01), None
patent: WO 98/32241 (1998-01-01), None
patent: WO 9832241 (1998-07-01), None
Japanese Examination Report of co-pending Japanese patent application 2000-573126, dated Jun. 11, 2004 and its English translation.
“Transceiver for ISDN Subscriber Loops”, International Conference on Communications (ICC '89), IEEE, Jun. 1989, pp. 228-232.
Frenzel Rudi
Hauptmann Joerg
Krottendorfer Gerald
Kunisch Paul
Preitnegger Manfred
Infineon - Technologies AG
Welsh & Katz Ltd.
Wong Warner
Yao Kwang Bin
LandOfFree
Line terminator unit for a subscriber line does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Line terminator unit for a subscriber line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Line terminator unit for a subscriber line will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3955565