Multiplex communications – Wide area network – Packet switching
Patent
1989-02-28
1991-05-21
Eisenzopf, Reinhard J.
Multiplex communications
Wide area network
Packet switching
350 9615, 455600, H04J 1400
Patent
active
050181319
ABSTRACT:
A switch (10) which uses optical signals propagating through an air media is disclosed. Transmitters (14a-14n) radiate light along projection openings (40) through a solid, opaque housing (12). The projection openings (40) parallel each other and substantially reside in a lower plane (32) within the housing (12). Periscopic plugs (30) reflect such light upward along an intermediate direction (38) within the plugs (30) and out from the plugs (30) into incidence openings (42). The incidence openings (42) parallel each other and substantially reside in an upper plane (34) within the housing (12). Optical receivers (16a-16n) receive light propagating in the incidence openings (42). The incidence openings (42) reside substantially perpendicular to the projection openings (40).
REFERENCES:
patent: 3611359 (1971-10-01), Panerai
patent: 4011543 (1977-03-01), Soref
patent: 4830452 (1989-05-01), Orley
Oda, "Mechanically Operated Optical Switch", Fujitsu Sci. and Tech., vol. 17, #3, 9-'81, pp. 121-138.
Minowa, "Nonblocking 8.times.8 Optical Matrix Switch for Fiber Optics Communications", IEEE, 4-80.
Basile Peter A.
Carmen Ralph H.
Deschaine Stephen A.
Shah Govind
Beek L. Van
DSC Communications Corporation
Eisenzopf Reinhard J.
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