Back to results
US 7,149,248 B2Granted
Command packet system and method supporting improved trick mode performance in video decoding systems
AssigneeBroadcom Corporation
InventorsGaurav Aggarwal, Arun Gopalakrishna Rao, Marcus Kellerman, David Erickson, Jason Demas, Sandeep Bhatia, Girish Hulmani
Life of this patent
Estimating the term…
Abstract
A system, method, and apparatus for reducing the video decoder processing requirements are presented herein. During a rewind operation, a reference picture for a group of pictures is decoded and stored into a reference frame buffer. By storing a reference picture for the group, the reference picture need not be decoded to display each picture in the group during the rewind operation.
Claims2
A method for decoding pictures, said method comprising:
- storing a reference picture, said reference picture comprising a midpoint picture in an EP to EP segment;
- decoding a first prediction picture from the reference picture;
- decoding a second prediction picture from the reference picture;
- decoding a display picture from the first prediction picture and the second prediction picture;
- and
- providing the display picture to a display device.
3 more elements
A decoder system for decoding pictures, said method comprising:
- a first frame buffer for storing a reference picture, wherein the reference picture comprises a mid-point picture in an EP to EP stream during one time period, and a clean reference picture during another time period;
- a second frame buffer for storing a first prediction picture;
- a third frame buffer for storing a second prediction picture;
- and
- a circuit for decoding the first prediction picture and the second prediction picture from the reference picture and a display picture from the first prediction picture and the second prediction picture.
2 more elements
Dependencies are inferred from the claim text.