Appeal No. 2003-0422
Application No. 08/818,355 Page 6
channel as defined in appellants specification, the function of
allowing channels to publish to other channels, and the concept
of channel objects. It is further argued ( id.) that the
requisite motivation for combining the references does not exist.
From our review of Ravindran, we find that Ravindran is
directed to object-oriented communication for multimedia data
transport. The object-orientation decomposes an application-
level data transport into a set of network channel objects, with
each channel object handling a separate data stream (page 1360,
column 1). The function of the end-to-end communication system
is to collect the multimedia data generated by source entities,
move the data through the network, and deliver the data at
destination entities for consumption (page 360, column 2).
Architecturally, the communication system resides on top of the
backbone network (id.). A connection enfolds one or more
channels, i.e., network paths, along which various data streams
in a multimedia information flow. The user views a connection
object as an end-point communication, while the network views the
set of channel objects as providing independent data paths, each
possibly with different characteristics. For example, a video
telephone connection has two channels, one for video data and one
for audio data. These channels may be realized on different
paths through the network based upon bandwidth availability or
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