METHOD AND APPARATUS FOR DETECTING A DEAD ZONE IN THE TRANSFER FUNCTION OF A SIGNAL PROCESSING SYSTEM

A dead zone in the transfer function of a signal processing system, such as a VTR, is detected by impressing on the system a test signal that is formed within a predetermined interval from a sinusoidal waveform modulated by an envelope function that reduces to zero at a predetermined time. The exist...

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Bibliographische Detailangaben
1. Verfasser:	PENNEY, BRUCE J
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION TESTING
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Beschreibung
Zusammenfassung:	A dead zone in the transfer function of a signal processing system, such as a VTR, is detected by impressing on the system a test signal that is formed within a predetermined interval from a sinusoidal waveform modulated by an envelope function that reduces to zero at a predetermined time. The existence of the dead zone is detected by observing whether the corresponding output signal of the signal processing system has a constant amplitude at times other than the time at which the envelope function is zero.