Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1995-04-13
1997-01-07
Boudreau, Leo
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359109, 348385, 348335, H04B 1012
Patent
active
055923216
ABSTRACT:
An apparatus for the selective routing of information signals includes a plurality of transmitting units. Each transmitting unit has a transmitter for transmitting information by converting the same into a light signal. A plurality of fiber optic lines are provided for carrying the light signal from the transmitting units. Each fiber optic line corresponds to one of the transmitting units. At least one receiving unit is provided for selectively receiving the information carried by the fiber optic lines. The receiving unit includes a liquid crystal panel having a plurality of light passing areas. The optical transmission properties of the light passing areas are controlled individually, for selectively receiving the light from the fiber optic lines, for effecting connections between the transmission units and the receiving unit by the fiber optic lines in any arbitrary combination. Each light passing area corresponds to one of the fiber optic lines. A receiver which is part of the receiving unit generates an electrical signal converted from the light which passes through the liquid crystal panel.
REFERENCES:
patent: 4383170 (1983-05-01), Takagi et al.
patent: 4603352 (1986-07-01), Kaneta et al.
patent: 4863233 (1989-09-01), Nienaber et al.
patent: 4943864 (1990-07-01), Elberbaum
patent: 5448661 (1995-09-01), Takai et al.
Boudreau Leo
Elbex Video Ltd.
Negash Kinfe-Michael
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