Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1981-12-21
1984-01-24
Heyman, John S.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307523, 307247A, 328120, H03D 304
Patent
active
044279485
ABSTRACT:
A pulse toggle monitor circuit which detects toggling of a monitored pulse. A plurality of detection circuits are connected in a shift register manner. This arrangement provides for detection of pulse toggling of a duration longer than a predetermined time as defined by the period of an external reference signal and the number of detection circuits. The output of the shift register is connected to a storage circuit which is clocked by the reference signal and operates to store failure signals from the shift register. The storage circuit can be cleared either by external control or detection of a valid pulse.
REFERENCES:
patent: 3588548 (1971-06-01), Williams
patent: 3753130 (1973-08-01), Pezzutti
patent: 4002987 (1977-01-01), Kuhn
patent: 4360782 (1982-11-01), Nowell
Black Robert J.
GTE Automatic Electric Labs Inc.
Hendricks Gregory G.
Heyman John S.
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