Switch mechanism for switching signals at inputs onto outputs an

Details Switch mechanism for switching signals at inputs onto outputs an Switch mechanism for switching signals at inputs onto outputs an

1992-11-30

1994-11-01

Chin, Wellington

Multiplex communications

Wide area network

Packet switching

370 691, H04J 100, H04J 1402, H04Q 1102

Patent

active

053612540

ABSTRACT:
A switch mechanism for switching signals at inputs onto outputs and switching networks for interlinking first and second transmission media. Switching networks for interlinking first and second transmission media for the transmission of signals in frequency-division or space-division multiplex have a substantially simpler architecture in comparison to known switching networks. To that end, the switching networks are constructed with a new switch mechanism composed of a plurality of adjustable frequency converters of the input side, of a means for distributing the signals and of doubly adjustable frequency converters of the output side and/or of a plurality of doubly adjustable frequency converters of the input side, a means for distributing the signals and adjustable frequency converters of the output side. A simpler structure can be achieved in a known switching network of the Clos type in that shared-medium switches of two different types are employed. The switch mechanism can be used in electrical and optical switching systems.

REFERENCES:
patent: 4349903 (1982-09-01), Kubler
"A Coherent Photonic Wavelength-Division Switching System for Broad-Band Networks", by Masahiko Fujiwara, et al., IEEE Journal of Lightwave Technology, vol. 8, No. 3, Mar. 1990, pp. 416-422.
"A New Architecture for Packaging Wideband Communication Equipment Using A 3-D, Orthogonal Edge-To-Edge Topology", by Donald K. Wilson, IEEE 1988, pp. 13.51 through 13.6.1.
"A Study of Non-Blocking Switching Networks", by Charles Clos, B.S.T.J., vol. 32, 1953, pp. 406-424.
"Pulstechnik", by E. Hoelzler et al., vol. 2, Springer Verlag, 1984, p. 378.
"A Photonic Wavelength-Division Switching System Using Tunable Laser Diode Filters", S. Suzuki et al., Conference Record, IEEE International Conference on Communications, Jun. 11-14, 1989, pp. 722-727.
"Frequency Tunable Laser Diodes and Their Application to Coherent Systems", I. Mito et al., Proceedings, 14th European Conference on Optical Communication, Sep. 11-15, 1988, pp. 74-77.

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