Appeal No. 1999-2705
Application 08/686,756
applicable to disk devices in the description of the
prior art in col. 1, lines 11-12.
It would have been obvious to one of ordinary skill
in the art at the same time the invention was made to
modify the teachings of Lehureau with Christner et al and
Masaki et al, motivation being to provide optimized
current for each head as set forth in the abstract and to
provide optimum write conditions as set forth in col. 3
lines 61-65 of Masaki et al.
The rejection contains some factual errors which confuse
the analysis. Christner teaches (abstract): "An optimized
bias current for each head is ascertained and stored on the
disk surface at the time of manufacture. During each power up
operation the values are transferred to random access memory
which is accessed during the execution of each head switch
command to apply bias current in accordance with the optimized
value to the active MR head." The bias values stored on the
disk are not "separate from the magnetic [medium]," and the
random access memory (RAM) is not a "nonvolatile memory."
Thus, the Examiner errs in finding that Christner teaches
storing a current value in a non-volatile memory separate from
the magnetic medium.
The rejection does not state how it is proposed to modify
Lehureau with the teachings of Christner and Masaki other than
by somehow incorporating the features discussed. Interpreting
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