Patent 07257312 - Fast motion trick mode using dummy predictive pictures > Summary

Patent No. US 07257312

Published on Aug 14, 2007

Application No. 10/121088

Filed on Apr 11, 2002

Priority Date -

Lin, Shu - Indianapolis, IN US (68)

The invention concerns a method (200 or 300) 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 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 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.

Tran, Thai Q.