Broadband communications system

Details Broadband communications system Broadband communications system

1993-09-17

1996-03-12

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

3701101, 348 6, 455 31, H04H 108

Patent

active

054992419

ABSTRACT:
A broadband communications system for coupling telephony or other digital networks to a CTV network. The system includes transmitting a multiplex of telephony signals in 3 MHz channels in the forward band of the CTV network. Each 3 MHz channel is QPR modulated on a carrier and contains multiple subscriber telephony signals. The forward telephony channels are demodulated and demultiplexed by a plurality of subscriber terminals into the individual telephony signals directed to an addressed subscriber. The individually addressed telephony signal is then applied to a line card which connects the subscriber telephone equipment to the system. Audio and control signals returning from the subscriber are digitized into standard telephony signals and modulated on a carrier in 50 kHz reserved telephony channels onto the reverse band of the CTV network. The multiplicity of reverse band telephony channels are demodulated and multiplexed into a standard telephony signal which can be directly interfaced to the telephony network. In the illustrated embodiment, the CTV network has a fiber to the serving area architecture that can be used to increase the number of reverse band channels which are available to the broadband communications system. Several configurations for the system are described where the input and output interface can both be coupled at the headend or both coupled at a fiber node, or either one coupled at the headend while the other is coupled at a fiber node.

REFERENCES:
patent: 2236501 (1941-04-01), Goldsmith
patent: 3275746 (1966-09-01), Beltrami
patent: 3529088 (1970-09-01), Hauer
patent: 3992589 (1976-11-01), Kuegler
patent: 4099202 (1978-07-01), Cavanaugh
patent: 4367548 (1983-01-01), Cotten, Jr. et al.
patent: 4485400 (1984-11-01), Lemelson et al.
patent: 4534024 (1985-08-01), Maxemchuk et al.
patent: 4633462 (1986-12-01), Stifle et al.
patent: 4709418 (1987-11-01), Fox et al.
patent: 4748618 (1988-05-01), Brown et al.
patent: 4761684 (1988-08-01), Clark et al.
patent: 4763317 (1988-08-01), Lehman et al.
patent: 4849811 (1989-07-01), Kleinerman
patent: 4887158 (1989-12-01), Guichard et al.
patent: 4888638 (1989-12-01), Bohn
patent: 4888795 (1989-12-01), Ando et al.
patent: 4891694 (1990-01-01), Way
patent: 4905080 (1990-02-01), Watanabe et al.
patent: 4907079 (1990-03-01), Turner
patent: 4912552 (1990-03-01), Allison, III et al.
patent: 4920533 (1990-05-01), Dufresne et al.
patent: 4926255 (1990-05-01), Von Kohorn
patent: 4937821 (1990-06-01), Boulton
patent: 4955048 (1990-08-01), Iwamura et al.
patent: 4961109 (1990-10-01), Tanaka
patent: 4974252 (1990-11-01), Osborne
patent: 4975902 (1990-12-01), Damany
patent: 4995071 (1991-02-01), Weber et al.
patent: 5003384 (1991-03-01), Durden et al.
patent: 5008926 (1991-04-01), Misholi
patent: 5014125 (1991-05-01), Pocock et al.
patent: 5027426 (1991-06-01), Chiocca, Jr.
patent: 5029333 (1991-07-01), Graves et al.
patent: 5063587 (1991-11-01), Semasa et al.
patent: 5075771 (1991-12-01), Hashimoto
patent: 5084903 (1992-01-01), McNamara et al.
patent: 5088111 (1992-02-01), McNamara et al.
patent: 5124980 (1992-06-01), Maki
patent: 5136575 (1992-08-01), Kuroda
A Passive Optical/Coax Hybrid Network Architecture for Delivery of CATV, Telephony and Data Services; by M. Mesiya, pp. 358-364, 1993.

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