Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1988-03-22
1990-05-08
Ng, Jin F.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
379 98, 370 24, 370 321, 370 76, 370119, 371 43, H04M 1100
Patent
active
049244922
ABSTRACT:
In a telephone local loop transmission arrangement, data is communicated from the customer premises to the central office utilizing a multi-dimensional, passband signal illustratively at 480 kb/s and 1.544 Mb/s.
REFERENCES:
patent: 4117277 (1978-09-01), van den Elzen et al.
patent: 4660214 (1987-04-01), Pahlavan et al.
patent: 4677625 (1987-06-01), Betts et al.
patent: 4682358 (1987-07-01), Werner
P. J. van Gerwen et al., "Wideband Data Transmission Techniques", Philips Research Laboratories, Netherlands, pp. 37, 38, 40, 70, Jun. 1970 Telecommunications.
P. di Tna et al., "Design and Simulation . . . 80 Kbit/s . . . Subscriber Loop", CSELT Technical Report, vol. IX, Supp. No. 4, Aug. 1981, pp. 361-367.
O. Agazzi et al., "Data Communication Ic's", Feb. 11, 1982, IEEE International Solid-State Circuits Conference, pp. 144, 145, 310.
H. K. Thapar, "Real-Time Application of Trellis Coding To High Speed Voiceband Data Transmission", IEEE Journal on Selected Areas in Communications, vol. SAC.-2, No. 5, Sep. 1984, pp. 648-658, (Class 375-39).
D. G. Messerschmitt, "Design Issues in the ISDN U-Interface Transceiver", IEEE Journal on Selected Areas in Communications, vol. SAC-4, No. 8, Nov. 1986, pp. 1281-1293.
S. Kasturia et al., "Spectrally Constrained Codes for High Rate ISDN Subscriber Loop", IEEE International Conference on Communications '88: Digital Technology--Spanning the Universe, Jun. 12-15, 1988, Conference Record, vol. 1, pp. 96-100, 1988.
C. Hoppitt, "ISDN Evolution: From Copper to Fiber in Easy Stages", IEEE Communications Magazine, vol. 24, No. 11, Nov. 1986, pp. 17-22.
Gitlin Richard D.
Rao Sailesh K.
Werner Jean-Jacques
Zervos Nicholas
American Telephone and Telegraph Company
AT&T Information Systems Inc.
Chan Wing F.
Ng Jin F.
Slusky Ronald D.
LandOfFree
Method and apparatus for wideband transmission of digital signal 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 wideband transmission of digital signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for wideband transmission of digital signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2355440