Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1995-09-13
1997-02-11
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359140, 359159, 359173, H04B 1018, H04J 1408
Patent
active
056026676
ABSTRACT:
A device controller for coupling various peripheral devices to a host computer while compensating for distances of up to 10 kilometers. The basic interface medium is fiber optics. The chosen protocol may be functionally equivalent to an existing electrical interface standard or may comply with an interface standard designed specifically for fiber optic input/output communication. The time delays associated with distances of from 500 feet to 10 kilometers are automatically provided by manually switching to the maximum distance mode. An embedded RISC provides the basic logic for the device controller. Further efficiencies are provided by permitting Futurebus+ and disk storage subsystem data exchanges without involvement by the host computer.
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Pascal Leslie
Unisys Corporation
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