AUDIO COPY PROTECTION SYSTEM

An apparatus for applying an anti-copy protection signal for use with switchable head recorders, such as Video Hi-FI recorders, is described. A high frequency pulsed signal is added to an original signal. The pulses interfere with the compensator circuitry such that the switching of the record head...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TAN, BAOLIN, ROBINSON, DAVID JOHN MICHAEL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BROADCAST COMMUNICATION CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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