Appeal No. 2004-2185
Application 08/855,245
environment, it is clear that Bolot plainly teaches the
availability of doing this and the desirability of doing it
according to the discussion at column 2 of page 58 and the
initial lines of column 1 of page 59.
We conclude therefore that Bolot is cumulative to teachings
already either taught or strongly suggested in Chaddha, and that
the teachings of Bolot clearly would have led the artisan to have
enhanced the teachings and suggestions of Chaddha to
advantageously make clear the desirability of feeding information
back to the video source, the server, because of changing network
conditions either explicitly or implicitly determined.
It is believed that the extent of the discussion in this
opinion has adequately provided a basis for the obviousness of
the subject matter of dependent claims 2-9 to the extent they are
argued in the brief. It appears to us as well as we believe to
the artisan that right sizing in Chaddha occurs not only at the
client or decoder side, but as well as at the server or source of
the video information side of the data stream. Even though Bolot
does not mention enhancement layers per se, the teaching value of
this reference is viewed by us to be so strong as to strongly
suggest to the artisan that Chaddha's inherent ability to prune
or eliminate as well as to grow or add enhancement layers would
9
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