Telephonic communications – Substation or terminal circuitry – Hold circuit
Patent
1984-12-10
1986-11-18
Dwyer, James L.
Telephonic communications
Substation or terminal circuitry
Hold circuit
379163, 379412, H04M 100
Patent
active
046237623
ABSTRACT:
A snubber circuit for use with hold circuits employed in telecommunication applications that employ an SCR as the principle control device. The included circuit prevents false hold turn on in response to static discharge. Voice band impedance and ringing signals are not adversely affected by the addition of the circuit to a standard SCR type hold circuit.
REFERENCES:
patent: 4011413 (1977-03-01), Phillips
Boeckmann Eduard F. B.
James Miranda L.
Black Robert J.
Dwyer James L.
GTE Communication Systems Corporation
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