Appeal No. 2004-0913
Application No. 08/940,760
In the exemplary embodiment, input lead 211 [Fig. 6] is preferably
capable of transporting a plurality of communication signals (e.g.,
half-duplex audio, video or data signals), each of which is to be transcoded
in accordance with a particular coding technique....
Either the source or destination device (e.g., the mobile switching
center or base station controller) communicates to the illustrative
embodiment which communication signals are to be transcoded with which
coding technique with either: (1) in-band signaling that is carried by input
lead 211 is a component of the various communication signals, or (2) by
out-of-band signaling that can be carried to the exemplary embodiment by
input lead 211 or by an alternative route.
Bresalier col. 4, l. 47 - col. 5, l. 6.
We agree with appellants that, according to Bresalier’s objective teaching, the
source or destination determines the transcoding technique (which may include error
detection and correction), but the reference does not disclose, expressly or inherently,
how the determination is made by the source or destination. Bresalier discloses that a
plurality of communication signals are to be transcoded in accordance with selected
techniques, and that the signals may comprise, for example, audio, video, or data. We
find no disclosure or suggestion of determining a transcoding technique and an error
control scheme based on the data type. Moreover, the only example that Bresalier
appears to provide of different transcoding and error control techniques as related to
data type is that of applying different techniques to a single data type; i.e., audio. See
col. 1, ll. 36-51.
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