Variant streams for real-time or near real-time streaming to provide failover protection
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United States of America Patent
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Sep 4, 2012
Grant Date -
Mar 24, 2011
app pub date -
Sep 8, 2010
filing date -
Dec 31, 2008
priority date (Note) -
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Abstract
Methods and apparatuses provide real-time or near real-time streaming of content using transfer protocols such as an HTTP compliant protocol. In one embodiment, a method includes providing multiple redundant locations that provide media content to client devices using alternative streams. To implement failover protection, a first server device or first content distribution service creates a stream, or multiple alternate bandwidth streams and generates playlist file(s). A second server device or second content distribution service creates a parallel stream, or set of streams. A client attempts to download the playlist file(s) from a first uniform resource locator (URL) using a first stream associated with the first server device or the first content distribution service. If a client is unable to download the playlist file(s) from the first URL, the client attempts to switch to an alternate stream associated with another URL.
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