OPERATION AND ARCHITECTURE FOR DASH STREAMING CLIENTS
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United States of America Patent
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Issued Date -
Jan 16, 2014
app pub date -
Jul 12, 2013
filing date -
Jul 13, 2012
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Abandoned
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Abstract
An adaptive HTTP streaming client may prevent network-level transcoding, may detect that transcoding takes place and implement a custom reaction, and/or may adopt rate estimation and stream switching logic, which may produce meaningful decisions in the presence of caching and transcoding operations in the network. A streaming client may use hash values of received segments, attributes of a received stream of content, and/or segment length checks of representations of segments to determine if the segments were transcoded. A streaming client may use random split range-based HTTP GET requests to deter transcoding. A streaming client may use split range-based HTTP GET requests to improve the accuracy of its bandwidth estimation. A streaming client may use any combination of the techniques described herein to detect transcoding, deter transcoding, adopt improved bandwidth and/or bitrate estimation, and adopt improved switching logic.
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