Appeal No. 2004-2185
Application 08/855,245
conclusion that the subject matter of the claims on appeal would
have been obvious to the artisan.
Beginning at line 54 of column 11, it is clear that the
client or user has the ability to specify or select directly
the spatial resolution, frame rate and bandwidth directly. Of
particular importance to us is the discussion at column 12,
lines 23-48 which we reproduce here:
The media server components include a session
control agent, the audio transmission agent, and the
video transmission agent. The user connects to the
session control agent on the server system and arranges
to pay for the video service and network bandwidth.
The user can specify the cost he/she is willing to pay
and an appropriately scaled stream will be provided by
the server. The session control agent (e.g., admission
control mechanism 110) then sets up the network
delivery connections and starts the video and audio
transmission agents. The session control agent 110 is
the single point of entry for control operations from
the consumers remote control, the network management
system, and the electronic market.
The audio and video transmission agents read the
media data from the striped disks and pace the
transmission of the data onto the network. The video
transmission agent scales the embedded bit-stream in
real-time by transmitting only the bit planes needed to
reconstruct the selected resolution at the decoder.
For example a 320X240 stream with 8 bits of base, 4
bits of enhancement signal at 15 frames per second will
transmit every other frame of video data with all 5
packets for each frame of the base and only two packets
containing the four most significant bits of the
enhancement layer resulting in 864 Kb of network
utilization. The server sends the video and audio
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