CONTENT NETWORK OPTIMIZATION UTILIZING SOURCE MEDIA CHARACTERISTICS
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United States of America Patent
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Issued Date -
Aug 29, 2013
app pub date -
Sep 10, 2012
filing date -
Feb 28, 2012
priority date (Note) -
Abandoned
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Abstract
Content is prepared for delivery to a user device by creating multiple encodings that are then stored in a content delivery network. Encodings range from a minimum-rate encoding to a maximum-rate encoding. For each segment of the content, a dynamics metric is compared to thresholds defining intervals of a dynamic range. The intervals, ranging from a minimum-dynamics interval to a maximum-dynamics interval, represent corresponding levels of dynamics and are mapped to corresponding encodings. The comparing results in selection of an encoding based on the dynamics metric, which may be a scene change count that reflects the number of independently renderable frames in the segment, available in MPEG encoding. Selections are included in download control data used by the user device to download the content. The user device selectively retrieves different encodings of segments, achieving lower bandwidth usage without sacrificing fidelity.
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