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US 2010/0166383 A1Published application
System and method for providing trick modes
AssigneeNXP B.V.
InventorAnurag Goel
Life of this patent
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Abstract
A system and method for providing trick modes uses a trick mode video bitstream generated from an original video bitstream to produce video frames during a trick mode. The trick mode video bitstream is generated to be less complex with respect to decoding than the original video bitstream. Thus, the computational cost to provide trick modes is significantly lowered.
Claims20
A system for providing trick mode comprising:
- a trick mode bitstream generator configured to generate a trick mode video bitstream from an original video bitstream, the trick mode video bitstream being of lower complexity with respect to decoding than the original video bitstream;
- a storage device to store the original video bitstream and the trick mode video bitstream;
- a decoder unit connected to the storage device to receive both the original video bitstream and the trick mode bitstream to produce decoded video frames to be displayed, the decoder unit being configured to decode only the original video bitstream to produce the decoded video frames during a normal play mode, the decoder unit being further configured to decode the trick mode video bitstream and a portion of the original video bitstream to produce the decoded video frames during a trick mode;
- and
- a mode controller connected to the decoder unit to control the decoder unit to decode according one of the normal play mode and the trick mode in response to user input.
2 more elements
A method for providing trick modes, the method comprising:
- generating a trick mode video bitstream from an original video bitstream, the trick mode video bitstream being of lower complexity with respect to decoding than the original video bitstream;
- decoding only the original video bitstream during a normal play mode to produce normal video frames to be displayed;
- and
- decoding the trick mode video bitstream and a portion of the original video bitstream during a trick mode to produce trick mode video frames to be displayed.
1 more element
A method for providing trick modes, the method comprising:
- generating a trick mode video bitstream from an original video bitstream, the trick mode video bitstream being of lower complexity with respect to decoding than the original video bitstream;
- decoding only the original video bitstream during a normal play mode to produce normal video frames to be displayed;
- and
- decoding predictive frames of the trick mode video bitstream to and independent reference frames of the original video bitstream during a trick mode to produce trick mode video frames to be displayed.
1 more element
Dependencies are inferred from the claim text.