Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1994-05-16
1995-10-10
Boudreau, Leo H.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359167, 370 952, H04J 1408, H04B 1000
Patent
active
054575605
ABSTRACT:
A fiber optic telecommunication system has master site linked to a plurality of subscriber interface sites by a single pair of optical fibers. Downlink messages are transmitted in a continuous TDM format over a first optical fiber from the master site to subscriber interface sites, and in a burst mode TDMA format over a second optical fiber from the subscriber interface sites to the master site. Each subscriber interface site is coupled to the optical fiber link by way of a multiple fan-out fiber coupling pedestal at a common location on the fiber pair. To prevent collisions between successive uplink bursts from the subscriber interface sites, a guard band separates successive uplink messages from one another. The guard band duration accommodates optical fiber transmission distance between the common location on the uplink optical fiber and the subscriber interface site whose differential optical fiber transmission distance from the common location is greatest. A subscriber location has a television decoder associated with the subscriber's television set, through which television channel selection signals are input by the subscriber for transmission from the subscriber interface site to the master site. Power is provided by way of a replaceable battery pack, housed in a subterrestrial bell jar configuration, effectively insulating the battery pack from extreme temperature changes and the intrusion of moisture.
REFERENCES:
patent: 3482030 (1969-12-01), Wisniewski
patent: 4135202 (1979-01-01), Cutler
patent: 4367548 (1983-01-01), Cotten, Jr. et al.
patent: 4542437 (1985-09-01), Ellis et al.
patent: 4745468 (1988-05-01), Von Kohorn
patent: 4763191 (1988-08-01), Gordon et al.
patent: 4876592 (1989-10-01), Von Kohorn
patent: 4926255 (1990-05-01), Von Kohorn
patent: 5034807 (1991-07-01), Von Kohorn
patent: 5057915 (1991-10-01), Von Kohorn
patent: 5063595 (1991-11-01), Ballance
patent: 5128752 (1992-07-01), Von Kohorn
patent: 5150247 (1992-09-01), Sharpe et al.
patent: 5227874 (1993-07-01), Von Kohorn
patent: 5249044 (1993-09-01), Von Kohorn
"Australian Passive Optical Network Developments for Subscriber Loop Applications" by I. MacGregor; SPIE Conference, Sep., 1989; pp. 1-13.
"The Broadband Universal Communications Network" by Daniel J. Harrold and Robert D. Strock; IEEE Communications Magazine 25 (1987) Jan., No. 1, New York; pp. 69-78.
"Communications for the Information Age"; IEEE Global Telecommunications Conference & Exhibition, Hollywood, Florida, Nov. 28-Dec. 1, 1988; pp. 38.5.1-38.5.5.
"Implementation of a Broadband Intergrated Services Hybrid Network" by M. Farooque Mesiya; IEEE Communications Magazine; Jan., 1988, No. 1, New York, N. Y.
"A Broadband Subscriber Network Using Optical Star Coupler" by Tokura et al; IEEE Communications Society, Tokyo, Japan, Nov. 15-18, 1987; pp. 37.1.1-37.1.5.
"Auf dem Wege zu einem universellen Kommunicationsnetz" by Gohm and Till; Nachrichtentechnische Berichte (1987) Mai, Heft 4, Backnang, W. Germany; pp. 92-100.
"Technology Aspects for System 12 Broadband ISDN" by Boettle and Kreutzer, IEEE Journal on Selected Areas in Communications; (1987) Oct., No. 8, New York, N.Y.
"Breitbandkoppelfelm mit monolithisch integrierter (16.times.16)--Koppelmatrix"; by Bonk et al; ANT Nachrichtentechnische Berichte 1987.
Casper Paul W.
Evans Gregory M.
Jones J. Richard
O'Shea Thomas E.
Sears Richard N.
Boudreau Leo H.
Broadband Technologies, Inc.
Negash Kinfe-Michael
Wands Charles
LandOfFree
Fiber optic telecommunication system employing continuous downli does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fiber optic telecommunication system employing continuous downli, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber optic telecommunication system employing continuous downli will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2314302