Software controlled ring voltage generator

Details Software controlled ring voltage generator Software controlled ring voltage generator

2005-10-11

2005-10-11

Harold, Jefferey F. (Department: 2644)

Telephonic communications

Call signal generating

C379S372000, C379S377000, C379S252000

Reexamination Certificate

active

06954531

ABSTRACT:
A ring voltage generator uses values stored in random access memory to generate a train of pulses used to drive a voltage waveform to ring a telephone ringer. The values are stored in RAM, and are programmable by a user without requiring a change in the ring voltage generator design.

REFERENCES:
patent: 5406623 (1995-04-01), Rovik

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