Invention Grant
US09148642B2 Systems and methods for digital video high accuracy fast forward, rewind and skip 有权
数字视频高精度的系统和方法快进,快退和跳过

Systems and methods for digital video high accuracy fast forward, rewind and skip
Abstract:
In various embodiments, a recording and playback manager of a digital video recorder (DVR), set top box, receiver or other device stores and accesses statistics in a statistics file related to average distances between reference frames (e.g., intra frames or I-frames) within blocks of the video data of the recording. Accessing these statistics during playback enables the system to more accurately locate reference frames to display while executing the playback in a trick mode such as fast forward, rewind or skip. The average distance between reference frames for a particular block of video data may be used to jump from one reference frame to the next reference frame in that block during playback in trick mode.
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