Appeal No. 2004-0123
Application No. 09/118,922 Page 10
agree with the examiner (id.) that Daum's teaching of
synchronization to correct for time drift is a teaching of
skipping subtitle data, as the examiner has advanced no
convincing line of reasoning as to why an artisan would have been
motivated to skip any of the trick playback subtitles in
Tsukagoshi. From the disclosure of Tsukagoshi, we agree with
appellant that although Tsukagoshi is directed to reproducing
subtitles with video data, that because the subtitles have been
preselected and placed in memory, there is no suggestion to skip
any of the subtitles, and in particular, no suggestion to skip a
subtitle if the time of the SCR is greater than the command
executing start time of the subtitle (sub-picture). Thus,
although we find that Tsukagoshi is directed to reproducing
subtitles with video at high speed, we find that Tsukagoshi is
also not directed to the problem appellant is solving, i.e.,
simultaneously decoding at high speed video and sub-picture data
by skipping the current display control sequence if the updated
system clock reference value is greater than the command
executing start time. In addition, we find no suggestion, as
advanced by the examiner, to set the lag threshold in Daum to
zero to result in the video to be skipped if the SCR exceeded the
command executing start time.
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007