Elastic switched digital video (SDV) traffic control with adaptive bit rate streaming

A system for delivering content is provided that uses switched digital video (SDV), adaptive bit rate (ABR) streaming techniques and an ABR to Legacy Transport Stream (ALTS) converter for converting the ABR streams to a QAM-based transport stream, all under control of the SDV session manager. In ope...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Heiman, Robert S, Du Breuil, Thomas L
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A system for delivering content is provided that uses switched digital video (SDV), adaptive bit rate (ABR) streaming techniques and an ABR to Legacy Transport Stream (ALTS) converter for converting the ABR streams to a QAM-based transport stream, all under control of the SDV session manager. In operation, the SDV system can be used to select an ABR profile for a service that is destined for a QAM set top terminal based on the currently available bandwidth. Moreover, the ABR profile may be changed upward (i.e., a profile requiring a greater bandwidth) or downward (i.e., a profile requiring less bandwidth) on a dynamic basis as the number of requested services changes.