Appeal No. 1999-0243
Application 08/434,457
but teaches providing both the cylinder information and the
actual physical sector number within the sector. The Examiner
then points to Hikita's disclosure of a circuit 15 for converting
a physical sector number into a logical sector number, and
asserts that it would have been obvious to one of ordinary skill
in this art to have applied Hikita's teaching to Greenberg in
order to enable a computer to access a disk solely on the basis
of logical addresses.
In response to Appellants' argument that neither Greenberg
nor Hikita teaches or suggests generating logical sectors from
physical sectors, the Examiner asserts that Hikita clearly
teaches physical to logic sector conversion, and element 15 of
Hikita is marked as a physical-logical sector number conversion
circuit.
"Obviousness may not be established using hindsight or in
view of the teachings or suggestions of the inventor." Para-
Ordnance, 73 F.3d 1085, 1087, 37 USPQ2d 1237, 1239, citing W. L.
Gore & Assocs., 721 F.2d 1551, 1553, 220 USPQ 311, 312-13. In
addition, our reviewing court requires the PTO to make specific
findings on a suggestion to combine prior art references. In re
Dembiczak, 175 F.3d 994, 1000-01, 50 USPQ2d 1614, 1617-19 (Fed.
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