Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1975-07-14
1976-12-21
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
328164, 328207, 328, H03K 518
Patent
active
039990850
ABSTRACT:
A digital interface especially useful for isolating a speedily responsive circuit from the effects of transients at its input such as may be caused, for example, by contact bounce in a relay. The circuit includes a monostable multivibrator connected to be set in response to changes of alternately opposite polarity of the input signal and having a characteristic period equal to a predetermined fraction of the normal minimum interval between intended changes of the input signal. The output of the multivibrator is used to drive a flip-flop at the end of the characteristic period to produce the desired output signal. Thus, the circuit is non-responsive to relatively rapid alternations of the input signal immediately following a change of its condition, yet responds reliably when the input signal changes state and remains stable in its new state for a time exceeding the characteristic period of the multivibrator.
REFERENCES:
patent: 3195056 (1965-07-01), Trautwein
patent: 3820031 (1974-06-01), Smithlin
patent: 3925682 (1975-12-01), Hamada
Kelly Patrick M.
Russell Stanley L.
Miller, Jr. Stanley D.
Porter, Jr. William F.
Rasco Marcus S.
Stone Hoffman
Stromberg-Carlson Corporation
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