Invention Grant
- Patent Title: Systems and methods for digital video high accuracy fast forward, rewind and skip
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Application No.: US12957148Application Date: 2010-11-30
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Publication No.: US08472783B2Publication Date: 2013-06-25
- Inventor: Michael Alexander
- Applicant: Michael Alexander
- Applicant Address: US CO Englewood
- Assignee: EchoStar Technologies L.L.C.
- Current Assignee: EchoStar Technologies L.L.C.
- Current Assignee Address: US CO Englewood
- Agency: Seed IP Law Group PLLC
- Main IPC: H04N9/80
- IPC: H04N9/80

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.
Public/Granted literature
- US20120134646A1 SYSTEMS AND METHODS FOR DIGITAL VIDEO HIGH ACCURACY FAST FORWARD, REWIND AND SKIP Public/Granted day:2012-05-31
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