Patent Number: 6,167,131

Title: Ring generator

Abstract: In a local loop telephone system, a voltage limited device having circuitry to provide subscriber interface functions and generate a ring signal. The device comprises four switches in a full bridge drive configuration. An external source provides a constant voltage which converted into an alternating ring voltage by triggering the switches in a specified sequence.

Inventors: Heilman; Randy Thomas (Palm Bay, FL)

Assignee: Intersil Corporation

International Classification: H04M 3/02 (20060101); H04M 003/02 ()

Expiration Date: 12/26/2017