Telephone set with loop current interruption timing control

Details Telephone set with loop current interruption timing control Telephone set with loop current interruption timing control

H - Electricity

04

M

379/73

H04M 1/00 (2006.01) H04M 1/53 (2006.01)

Patent

CA 1110788

A B S T R A C T In a telephone set, possible mistakes in the generation of "hook flash" and "disconnect" signals, as customarily produced by operation of the hook switch and manifested as interruptions in the loop current, are avoided by a signal generating circuit which produces an accurately timed interruption of loop current, as a hook flash signal, in response to operation of a hook flash push button and which also produces another accurately timed and substantially longer interruption of loop current, as a disconnect signal, in response to operation of the hook switch.

296827

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