Digital signal receiver device comprising filtering means
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United States of America Patent
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Sep 2, 1997
Grant Date -
N/A
app pub date -
May 6, 1993
filing date -
May 12, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The signals transmitted on communication lines in a disturbed environment can be affected by strays. A digital filtering device eliminates these strays by suitable detection of the logic states of the digital signals. The signals received are sampled at a frequency greater than the digital information transmission rate, then detection of a state is effective when a minimum number of samples from among a predetermined number of successive samples is reached. The filtering device restores the rising and descending fronts, and also the high and low states without impairing the information. Application to a highly disturbed electromagnetic environment, notably communication links with circuit breakers.
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