Appeal No. 2003-0023
Application No. 09/046,289
rejection, proposes to modify the motion vector detection system
disclosure of Tayama. According to the Examiner, Tayama
discloses the claimed invention except for the failure to
“particularly disclose an intra unit and a refine unit . . . . ”
(Answer, page 4). To address this deficiency, the Examiner turns
to Jeng which describes an MPEG video signal processor which
utilizes an intra unit and a refine unit for providing a base
encoder and search refinement. In the Examiner’s analysis, the
skilled artisan would have been motivated and found it obvious to
modify the system of Tayama by adding intra and refine units as
taught by Jeng “for the same purpose of providing a refined
search around the search results from the search unit. Doing so
would allow the motion estimator to easily expand a motion vector
search window that reduces hardware costs and complexities of
video frames buffer access.” (Id., at 5).
With respect to the Examiner’s 35 U.S.C. § 103(a) rejection
of appealed independent claim 26, Appellants assert that the
Examiner has failed to establish a prima facie case of
obviousness since all of the claimed limitations are not taught
or suggested by any of the applied prior art references. After
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