Method and system for adaptive rate video compression and transmission
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United States of America Patent
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Jul 14, 2015
Grant Date -
Nov 4, 2010
app pub date -
Apr 28, 2010
filing date -
May 1, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
For a portion of video data, a video processing device generates a plurality of compressed video bit streams comprising different bit rates, and selects one stream per portion of video data to transmit to a display device. The streams may be generated concurrently. Bit rates are determined based on operating conditions and link performance. The selections are determined dynamically in response to received information. The streams may be compressed utilizing different compression schemes, for example, DPCM and/or transform compression. The bit rates may be dynamically adjusted by adjusting compression scheme, compression parameters, frame size, frame rate, color space and/or chroma sampling. The portion of video data may comprise contiguous horizontal rows or portions of rows of pixels, a full frame and/or a scaled frame. Information is communicated to the display device for control of decompression operations. The display device receives, decompresses, reconstructs and displays the selected bit stream.
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