Unabhängiges externes Sicherheitsmodul für einen digital-erweiterbaren Fernsehsignaldekoder

Upgrade circuitry (1390) is provided so as to adapt a reception system (1306) for analog signals to accept both analog and digital signals. The upgrade circuitry (1390) selects (1392) a predetermined digital signal from a number of received digital signals, and decompresses (1393) the selected digit...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YONEDA, ROBERT K., TORONTO ONTARIO M4L 1W3, CA, GAMMIE, KEITH, MARKHAM ONTARIO L3P 1W1, CA, WOO, ARTHUR, SCARBOROUGH ONTARIO M1E 1C5, CA, SHELDRICK, WAYNE
Format:	Patent
Sprache:	ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY JAMMING OF COMMUNICATION PICTORIAL COMMUNICATION, e.g. TELEVISION SECRET COMMUNICATION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Upgrade circuitry (1390) is provided so as to adapt a reception system (1306) for analog signals to accept both analog and digital signals. The upgrade circuitry (1390) selects (1392) a predetermined digital signal from a number of received digital signals, and decompresses (1393) the selected digital signal. The reception system (1306) includes a switch (1367) for selectively coupling to a decoder (1368) either an analog signal processing demodulator (1366) or the upgrade circuitry (1390).