Appeal No. 1998-0879
Application 08/251,730
Kantner) indicate the compression technique utilized to
compress the video data in a corresponding elementary unit
(Br7).
Appellants argue (Br6): "Kantner fails to identically
disclose the escape code, which as recited in exemplary
Claim 1, 'indicates a common compression characteristic
shared by a plurality of digital data blocks following the
escape code' and which indicates a particular compression
technique when taken together with a subsequent header
code." "Thus, Kantner teaches neither the ordering (i.e.,
escape code preceding header code) nor the function of the
escape code recited in the present claims." (Br7.)
The Examiner states that "Applicant's first assertion
is that Kantner fails to disclose the use of byte headers in
conjunction with the escape codes" (EA5). The Examiner
finds that when the dyad in the header indicates a
predetermined pattern elementary unit, the stream 38
contains an index block 54 and that, in some circumstances,
an escape code can replace the index block. The escape code
can indicate run lengths of elementary units which are
unchanged or homogeneous (two types of compression). Thus,
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