Method and apparatus for isolating a computer system upon detection of viruses and similar data
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United States of America Patent
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-
Dec 14, 1999
Grant Date -
N/A
app pub date -
Oct 22, 1997
filing date -
Oct 22, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for isolating data receiving entity from a data sending entity includes a first data channel, coupled to the data sending entity, and a second data channel, coupled to the data receiving entity. A processor is programmed to compare a plurality of data words received from the first data channel to at least one data word characteristic of a data virus and to assert a control signal when a data word received from the first data channel corresponds to a data word characteristic of a data virus. An optical isolator is capable of isolating the first data channel from the second data channel when the processor detects a data virus. A controllable power supply is responsive to the control signal from the processor and coupled to the optical isolator, which provides power to the optical isolator only when the control signal from the processor is not asserted.
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