Patent · US Active

Systems and methods for protecting alternative streams in adaptive bitrate streaming systems

US8918636B2 · kind B2 · utility

73Cited by

67References

38Claims

0Family size

Assignee

Sonic IP, LLC · US

Inventors

Michael Kiefer · Stuttgart, DE
Eric William Grab · San Diego, US
Jason Braness · San Diego, US

Key dates

Filing date	Dec 30, 2011
Grant date	Dec 23, 2014
Priority date	—
Expiry date	Oct 21, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/603
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Systems and methods for performing adaptive bitrate streaming using alternative streams of protected content in accordance with embodiments of the invention are described. One embodiment includes a processor, and non-volatile storage containing an encoding application. In addition, the encoding application configures the processor to: receive source content; obtain common cryptographic information; encode the source content as a plurality of streams including a plurality of alternative streams of content; and protect the plurality of alternative streams of content using the common cryptographic information.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.