HIGH IMPEDANCE ABSOLUTE TELEPHONE LINE VOLTAGE MEASUREMENT CIRCUIT

PURPOSE: A telephone line interface circuit is provided to measure a characteristic of a telephone line. CONSTITUTION: A telephone line measurement circuit is disclosed for detecting a variation of a characteristic between a first and a second leads of a telephone line. The circuit comprises a first...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	SHU LINMEI
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TELEPHONIC COMMUNICATION TESTING
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