Appeal No. 1999-0003 Page 5
Application No. 08/642,742
groups of characters, or bits, usually forming a field in data
items ...." (Examiner's Answer at 3-4.) The appellants
argue, "Loizides simply does not teach or even suggest the
hierarchical level encoding formats ...." (Appeal Br. at 3.)
Claims 1, 3, and 5-7 specify in pertinent part the
following limitations: "[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 ...."
Similarly, claims 8, 10, and 12-14 specify, in pertinent part,
the following limitations: "[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
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