Appeal No. 2002-1510
Application No. 08/882,625 Page 6
of pictures” as advanced by the examiner (answer, pages 5 and 6).
Appellants assert (answer, page 5) that "Lee discloses that
within a GOP, the number of bits for a current frame of a given
type (Dt) is computed by multiplying the bits for the prior frame
of the same type (Xt) by a ratio for the target bit rate for the
GOP (TGOP) to the expected bit rate for the GOP (EGOP). That is,
Lee relates a frame within a GOP to a prior frame within the same
GOP. Thus, the issue before us is whether Lee teaches or
suggests “means for allocating a target compressed-data bit rate
to pictures or blocks of pictures of a current group of pictures
according to a ratio of an amount of data generated during an
intra-frame coding of a prior group of pictures and an amount of
data generated during an inter-frame coding of said prior group
of pictures,” as recited in claim 1. The examiner's position
(answer, pages 5 and 6) that:
Lee teaches means for allocating a target
compressed-data bit rate to pictures of a
current group of pictures according to a
ratio of an amount of data generated during
an intra-frame coding of a prior group of
pictures and an amount of data generated
during an inter-frame coding of the prior
group of pictures. (Column 35, lines 12-39;[sic,).]
The target bit rate allocation Dt is given by
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