PREDICTIVE FRAME DROPPING METHOD USED IN WIRELESS VIDEO/AUDIO DATA TRANSMISSION
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United States of America Patent
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app pub date -
Nov 17, 2011
filing date -
Sep 5, 2011
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Abandoned
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Abstract
A predictive frame dropping method used in wireless video/audio data transmission using a video decoder or a video encoder under compressed domain instead of raw domain is provided. The method drops at least one consecutive P-frame directly in front of each I-frame sequentially in each group of pictures (GOP) for reducing the total amount of cache memory required for frame buffering and avoiding the memory from overflowing either before the data are being decompressed by the video decoder at the receiver side or after being compressed by the video encoder at the transmitter side. A controller for controlling the quantity of number of P-frames to be dropped is provided. The video decoder does not need any off-chip DDR memory. An SRAM can reside in either the video decoder or the video encoder for carrying out the predictive frame dropping method.
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