Appeal No. 1999-0003 Page 9
Application No. 08/642,742
allege, let alone show, that the additional references cure
the deficiency of Loizides. Because the latter reference’s
index is used to locate and retrieve data in a machine-
readable file, data set, or data base, we are not persuaded
that the teachings from the applied prior art would have
suggested the limitations of "[a] method for processing video
data, the method comprising the steps of: (a) providing data
encoded in a first high level encoding format that lies
hierarchically above a low level format; (b) partially
decoding the data to provide data encoded in an interim level
encoding format that lies hierarchically above the low level
format and hierarchically below both the first high level
encoding format and a second high level format, wherein the
second high level format lies hierarchically above the low
level format and is different from the first high level
encoding format[;]" "[a]n apparatus for processing video data,
the apparatus comprising: (a) means for providing data encoded
in a first high level encoding format that lies hierarchically
above a low level format; (b) means for partially decoding the
data to provide data encoded in an interim level encoding
format that lies hierarchically above the low level format and
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