Communications system

Details Communications system Communications system

1995-01-11

1996-11-05

Boudreau, Leo

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359167, 359158, 370112, H04J 1408

Patent

active

055723497

ABSTRACT:
A communications system having a line terminal(1), a plurality of customer terminals (2), and a passive optical network for supporting traffic between the line terminal and the customer terminals. The line terminal(I) has a terminal unit (BTS(n)) for relatively narrow bandwidth traffic, and a second terminal unit (BTS(1) to BTS(n-1)) for relatively wider bandwidth traffic. A time domain multiplexer (14) is arranged to multiplex the traffic from the first and second terminal unit for downstream transmission over the network (18). Each customer terminal (2) has a first service unit for relatively narrow bandwidth traffic and a second service unit for relatively wider bandwidth traffic. Each customer terminal (2) has a demultiplexer (22) arranged to receive multiplexed downstream traffic from the network (18), and to segregate the traffic between the first and second service unit. Each customer terminal (2) has control elements for generating relatively narrow bandwidth control signals for upstream transmission over the network, the second terminal unit (BTS(1) to BTS(n-1)) of the line terminal (1) being responsive to the control signals from a given customer terminal (2) to control the transmission of the relatively wider bandwidth traffic to that customer terminal. The downstream transmission is by TDM and the upstream transmission is by TDMA.

REFERENCES:
patent: 4441180 (1984-04-01), Schussler
patent: 4567586 (1986-01-01), Koeck
patent: 4631720 (1986-12-01), Koeck
patent: 5341365 (1994-08-01), Clarke
patent: 5398129 (1995-03-01), Reimann
Cook et al, "Broadband Digital Transmission Over Passive Optical Networks", GLOBECOM '91, vol. 1, 2 Dec. 1991, Phoenix, US, pp. 597-601.
Merk et al, "CATV Distribution in a Fiber-in-the-Loop System Utilizing External Modulation", 42nd Annual Conventiona nd Exposition of the National Cable Television Association, 6 Jun. 1993, San Francisco, US, pp. 368-375.

Affiliated with

Also associated with

Rating

Communications system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Communications system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2019223