Multiplex communications – Pathfinding or routing – Through a circuit switch
Patent
1995-06-05
1997-02-18
Olms, Douglas W.
Multiplex communications
Pathfinding or routing
Through a circuit switch
370395, 359117, H04L 1256, H04J 1408
Patent
active
056047347
ABSTRACT:
The invention is directed to an ATM-System adapted three-step switching unit, including an input circuit including a number of incoming group related conductors connected to a first switching stage, an output circuit including a number of outgoing group related conductors connected to a second switching stage and a third switching stage. A control unit coacts with said switching stages in order to connect one of said incoming conductors with a selected outgoing conductor by way of a connecting path, pointed out through the third switching stage. Each of the outgoing conductors belonging to the first switching stage coacts with an electro-optical converter. The respective connections between the first switching stage and the third switching stage consist of an optical conductor. The third switching stage is adapted to transfer optical information-carrying signals through the connecting path. The connections between the third switching stage and the second switching stage consist of optical conductors and incoming conductors belonging to said second switching stage, which are pre-connected by an opto-electrical converter.
REFERENCES:
patent: 4821225 (1989-04-01), Kobrinski
patent: 5077727 (1991-12-01), Suzuki
patent: 5126999 (1992-06-01), Munter et al.
patent: 5194977 (1993-03-01), Nishio
patent: 5197097 (1993-03-01), Takahashi et al.
patent: 5432627 (1995-07-01), Nishio
patent: 5475679 (1995-12-01), Munter
ISDN and Broadband ISDN, Chapter 2, Section 2.3 Space-Division Switching, 1992, William Stallings, pp. 30-34.
"Feasibility Demonstration of a 2.5-Gbit/S 16 .times. 16 ATM Photonic Switching Matrix", OFC/IOOC '93 Technical Digest (Technical Digest of Conference on Optical Fiber Communication), D. Chiaroni et al., pp. 93 and 94.
"Monolithically Integrated 4 .times. 4 InGaAsP/InP Laser Amplifier Gate Switch Arrays", Proc. Topical Meeting on Optical Amplifiers and their Applications, postdeadline paper, 1992, M. Gustafsson et al.
"Characterization of A 1.5 .mu.m Three-Electrode DFB Laser", European Conference on Optical Communication, 1990, pp. 279 to 282, by R.J.S. Pedersen et al.
"Performance of DBR Active Filters in 2.4 Gb/s Systems", European Conference on Optical Communication, 1991, pp. 445 to 448, by Olof Sahlen et al.
"Wavelength Conversion Laser Diodes Application to Wavelength-Division Photonic Cross-Connect Node with Multistage Configuration", IEICE Trans. Communications, vol. E75-B, No. 4, Apr. 1992, pp. 267-274, by H. Rokugawa et al.
"Trend of Photonic Switching Systems", IEICE Trans. Communication, vol. E75-B, No. 4, Apr. 1992, pp. 235-242, by Shuji Suzuki et al.
"A Class of Directional-Coupler-Based Photonic Switching Networks", IEEE Transactions on Communications, vol. 41, No. 4, Apr. 1993, pp. 599 to 603, Andrzej Jajszczyk.
"A Phototonic ATM Backbone Network", New Orleans Supercomm/ICC '94, International Conference on Communications, May 1-5, 1994, New Orleans, Louisiana, Ken-ichi Yukimatsu, et al., pp. 1346-1351.
Nguyen Chau T.
Olms Douglas W.
Telefonaktiebolaget LM Ericsson
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