SYSTEM FOR PREVENTING TAMPERING WITH A SIGNAL CONDITIONER REMOTE FROM A HOST SYSTEM

A system for prevention of tampering with signal conditioning circuitry (110) in meter electronics (20). In accordance with this invention a host system (100) remote from the signal conditioner (110) periodically (301) transmits a request for authentication information to the signal conditioner. The...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SAMSON, ALLAN L, KEILTY, MICHAEL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS TARIFF METERING APPARATUS TESTING
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