Cable network and modulator-demondulator arrangement for such a

Details Cable network and modulator-demondulator arrangement for such a Cable network and modulator-demondulator arrangement for such a

1993-11-29

1995-08-29

Eisenzopf, Reinhard

Telecommunications

Interference signal transmission

455 86, 348 12, H04H 102, H04B 150

Patent

active

054469180

ABSTRACT:
An interactive cable network for sending information to, and receiving information from a plurality of subscribers. The information is sent from a head-end through a central distributor which includes a plurality of head-end modems each capable of transmitting information at respective transmit frequencies within a first range of frequencies, and receiving information at respective receive frequencies within a second range of frequencies. The respective transmit and receive frequencies for each head-end modem form a respective modem frequency pair. Each head-end modem is coupled to a group of user modems and each respective user modem of each group operates on the respective modem frequency pair of its respective head-end modem. The central distributor also interrogates each user modem within each group of user modems. Each head-end modem can detect the reception quality of the signals coming from its respective user modems and if the quality of said signals is insufficient can determine a new modem frequency pair to be used with its respective group of user modems.

REFERENCES:
patent: 3804988 (1974-04-01), Browne
patent: 4210779 (1980-07-01), Semokat
patent: 4450477 (1984-05-01), Lovett
patent: 4494138 (1985-01-01), Shimp
patent: 4564940 (1986-01-01), Yahata
patent: 4677686 (1987-06-01), Hustig et al.
patent: 4689619 (1987-08-01), O'Brien, Jr.
patent: 4709418 (1987-11-01), Fox et al.
patent: 4860379 (1989-08-01), Schoeneberger
patent: 4910791 (1990-03-01), Dickinson et al.
patent: 5038140 (1991-08-01), Ikeuchi
patent: 5093718 (1992-03-01), Hoarty et al.
patent: 5136411 (1992-08-01), Park et al.
patent: 5142690 (1992-08-01), McMillan, Jr. et al.
patent: 5155590 (1992-10-01), Beyers, II et al.
patent: 5208665 (1993-05-01), McCalley et al.
K. Prasad, "Design of `Transnet` A Special Local Area Network", IEEE Proceedings of the 11th Conference on Local Computer Networks, Minneapolis, Minn., Oct. 6-8, 1986, pp. 46-55.

Affiliated with

Also associated with

Rating

Cable network and modulator-demondulator arrangement for such a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cable network and modulator-demondulator arrangement for such a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cable network and modulator-demondulator arrangement for such a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1827672