Appeal No. 95-3091
Application 08/093,311
reason- ably suggests the key feature of the appellant’s
invention, that the number of bits in the error-correction-
code is selected based on the track address of the location of
data storage. No reason has been set forth by the examiner as
to why the combined teachings of Yoshimura and McCullough
would have suggested that which neither one alone would have
suggested. The two references do not combine in any
reasonable manner to suggest that the num- ber of bits used in
the error-correction-code should be selected based on the
track address of the location to be written in.
On pages 4-6 of the examiner’s answer, the reasons
provided in the final Office action as to why the examiner
con- cludes that it would have been obvious to one with
ordinary skill in the art to vary the number of bits in the
error-correction-code based on the track address of the
location to be written in
is reiterated. It is explained that because the recordings
are more dense on the inner tracks and less dense on the outer
tracks, the probability of recording error is higher on the
inner tracks and lower on the outer tracks. For that reason,
the examiner concludes that it would have been prima facie
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