Fast motion trick mode using dummy bidirectional predictive...

Details Fast motion trick mode using dummy bidirectional predictive... Fast motion trick mode using dummy bidirectional predictive...

2006-01-24

2006-01-24

Chevalier, Robert (Department: 2616)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C386S349000

Reexamination Certificate

active

06990287

ABSTRACT:
The invention concerns a method (200or300) and system (100) for performing a trick mode operation on a video signal containing a plurality of progressively scanned original pictures. The method (200) includes the step of selectively skipping (214) at least one of the original pictures to convert the video signal to a trick mode video signal in response to a trick mode command and the step of selectively inserting (216) at least one dummy bidirectional predictive picture in the trick mode video signal. In addition, the method (300) can include the step of monitoring (316) the trick mode video signal so that the dummy bidirectional predictive picture is selectively inserted when the bit rate exceeds a predetermined threshold. Display indicators of certain pictures in the trick mode video signal can also be modified (226) (328) to reflect an intended display order.

REFERENCES:
patent: 5754241 (1998-05-01), Okada et al.
patent: 6201927 (2001-03-01), Comer
patent: 6865747 (2005-03-01), Mercier
patent: 2001/0026677 (2001-10-01), Chen et al.
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