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US 4,399,370 AGranted
Noise reduction method and apparatus
AssigneeHoneywell Inc.
InventorKeith J. Bulleyment
Life of this patent
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AssigneeHoneywell Inc.
InventorKeith J. Bulleyment
Estimating the term…
Apparatus for reducing noise due to switching transients in a control system having a plurality of inverting amplifiers located at a common site to receive individual switching input signals, a like plurality of relays located remotely from the amplifiers for individual energization and deenergization thereby in accordance with the switching signals, and conductors connecting the relays severally to the amplifiers, the apparatus comprising series circuits associated severally with the amplifiers, each series circuit including a resistor and a capacitor, having first terminals interconnected at a junction point and second, independent terminals, the inputs of the amplifiers being connected severally to the junction points, the input signals being connected severally to the independent terminals of the resistors, and the outputs of the amplifiers being connected severally to the independent terminals of the capacitors.
Means for reducing noise due to switching transients in a control system having a plurality of inverting amplifiers located at a common site to receive individual switching input signals, a like plurality of relays located remotely from said amplifiers for individual energization and de-energization thereby in accordance with said switching signals, and conductors connecting said relays severally to said amplifiers,
A control system having a plurality of inverting amplifiers located at a common site to receive individual switching input signals, a like plurality of relays located remotely from said amplifiers for individual energization and de-energization thereby in accordance with said switching signals, conductors connecting to said relays severally to said amplifiers, series circuits associated severally with said amplifiers, each said circuit including a resistor and a capacitor having first terminals interconnected at a junction point and second, independent terminals, means connecting the inputs of said amplifiers severally to said junction points, means connecting the input signals severally to said independent terminals of said resistors, and means connecting the outputs of said amplifiers severally to said independent terminals of said capacitors.
Dependencies are inferred from the claim text.