METHOD OF CODING AND DECODING OF AUDIO INFORMATION AND APPARATUS FOR CARRYING OUT THE METHOD

There is described a method for coding and de-coding in an information-transmission system, particularly for pay-television, which comprises for coding, converting the input analog signal into a digital signal, treating said latter digital signal to impart thereto a form which makes the information...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	JORIS, PIERRE JOSEPH, GORAY, EDDY CHARLES, NELEN, JEAN-CLAUDE SIMON
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY JAMMING OF COMMUNICATION PICTORIAL COMMUNICATION, e.g. TELEVISION SECRET COMMUNICATION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	There is described a method for coding and de-coding in an information-transmission system, particularly for pay-television, which comprises for coding, converting the input analog signal into a digital signal, treating said latter digital signal to impart thereto a form which makes the information content thereof unintelligible for normal receiving circuits, converting said signal back to an analog signal for transmitting same, and for receiving and de-coding, converting the input analog coded signal into a digital signal, treating said digital signal to return same to a form which makes said information content intelligible for normal receiving circuits, and finally converting the treated signal back to analog form for the use thereof. There is further described an apparatus for the working of this method.