Arrangement for demodulating an FM modulated signal

In order to reduce the disturbances caused by the head switch in a videotape recorder, in an arrangement for demodulating an FM modulated signal, a fixed value in the hold circuit (12) which circuit is used for maintaining the fixed value for the signal during the head switch, is selected such that...

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Bibliographische Detailangaben
Hauptverfasser:	PIJNENBURG, JOSEPHUS ADRIANUS, NOORDERMEER, WILLEM HADDE, GROOT HULZE, GERRIT JAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CONTROL OF AMPLIFICATION DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	In order to reduce the disturbances caused by the head switch in a videotape recorder, in an arrangement for demodulating an FM modulated signal, a fixed value in the hold circuit (12) which circuit is used for maintaining the fixed value for the signal during the head switch, is selected such that it is situated at a value the interpolated signal would have had during the head switch time interval (T1) at an instant situated between 0.3 T1 and 0.8 T1 in the head switch interval. This may be realized by an extension with a delay unit which realizes a delay Tv for which holds: 0.3 T1 < Tv < 0.8 T1.