Patent ID: 7035333

Claim:
A method for displaying a predictively coded compressed video signal in a reverse time sequence comprising the steps of: decoding and storing all I-frames and P-frames from a first group of pictures (GOP), exclusive of I and P frames from any other GOP, upon initiation of a reverse play command; and after storing the decoded I-frames and P-frames from the first GOP, displaying video images from the first GOP in the reverse time sequence, including the steps of: decoding any bidirectionally predictively encoded frames (B-frames) using the stored I-frames and P-frames and displaying the B-frames as they are decoded; displaying the stored I-frames and P-frames of the first GOP as they are encountered in the reverse time sequence; and while displaying the I-frames and the P-frames, decoding and storing respective I-frames and P-frames from a second GOP, exclusive of I and P frames from any other GOP, following the first GOP in the reverse time sequence; wherein the display of frames from the first GOP begins prior to the decoding of any frame from the second GOP.