LEERINTERVALL-DETEKTOR FÜR KASSETTENBANDGERÄT

Digital signal processing (DSP) employing a differential mean calculation automatically distinguishes sections of blank tape from program material (such as music or voice) on cassette tapes. Blank tape produces a negligible differential mean value while program material produces substantial differen...

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Bibliographische Detailangaben
Hauptverfasser:	WHITECAR, JOHN, ELLIOTT, PLYMOUTH, MI 48170, US, DIFIORE, NICHOLAS, LAWRENCE, FARMINGTON HILLS, MI 48334, US, HIRSCHENBERGER, FRANK, MICHAEL, BRIGHTON, MICHIGAN 48116, US
Format:	Patent
Sprache:	ger
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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Beschreibung
Zusammenfassung:	Digital signal processing (DSP) employing a differential mean calculation automatically distinguishes sections of blank tape from program material (such as music or voice) on cassette tapes. Blank tape produces a negligible differential mean value while program material produces substantial differential mean values. Thus, each differential mean is compared to a threshold so that a cassette player can be commanded to fast forward through a blank section of tape. A music envelope detector insures that low amplitude music signals are not detected as blank.