Browse Prior Art Database

HZM Signal Interface Converter

IP.com Disclosure Number: IPCOM000069286D
Original Publication Date: 1978-Apr-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Brady, RL Dale, FF Jumper, FK [+details]

Abstract

Telephone line conditions are read by a computer interface in a simple fashion. The arrangements are useful in connection with monitoring, telephone service application (TSA) and telephone answering service (TAS). The advantages include parallel attachment of existing equipment, no change to circuits, single conversion, no load sensing, less noise sensitivity, an add on connection, DC sensing, not time sensitive, electronic vs. electromechanical, and simpler service.