Appeal No. 2004-0123
Application No. 09/118,922 Page 2
1. A method of decoding video data and sub-picture data
simultaneously at high speed, comprising:
sequentially searching pictures to be reproduced;
decoding one of the searched pictures;
updating a system clock reference value with a presentation
time stamp value of the decoded picture;
displaying the decoded picture;
sequentially searching sub-picture units to be reproduced;
for each sub-picture unit, sequentially searching
corresponding sub-picture display control sequences;
comparing a command executing start time for a current
display control sequence with the updated system clock reference
value; and
skipping the current display control sequence if the updated
system clock reference value is greater than the command
executing start time, otherwise, waiting until the updated system
clock reference value is equal to the command executing start
time and then executing the current display control sequence.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Daum et al. (Daum) 5,815,634 Sep. 24, 1998
(filed Dec. 14, 1994)
Tsukagoshi et al. (Tsukagoshi) 5,848,217 Dec. 8, 1998
(filed Jul. 24, 1996)
Fujita 5,930,450 Jul. 27, 1999
(filed Feb. 27, 1996)
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