Stacked stream for providing content to multiple types of client devices
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United States of America Patent
Stats
-
N/A
Issued Date -
Dec 12, 2002
app pub date -
Jun 11, 2001
filing date -
Jun 11, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A system and method for distributing media files, such as audio or video files, to devices for playback or streaming at various quality levels is provided. In accordance with the method, a stacked media file is provided which has low, medium and high quality information for the same content. The file is transmitted to a receiving device at the highest quality level that the receiving device can decode. The hierarchy of the media file is such that data redundancies are avoided by, for example, stacking the data within the file in such a way that the data is segregated into data sets corresponding to a given sampling rate, with each successive data set containing only those data points not found in the preceding data set. The quality of the data being transmitted to the receiving device may be adjusted, during transmission if necessary, by increasing or decreasing the number of data sets being sampled.
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