Appeal No. 2000-0379
Application No. 08/815,352
detection (the "Cirrus Proposed Implementation"), which
structure involved a "triplet" pattern detector and other
structure not compatible with a sync mark in accordance with
the Cloke Criterion; that on behalf of WDC Hull informed
Behrens that the Cirrus Proposed Implementation was not
satisfactory to WDC; and that Hull then disclosed the Cloke
Criterion to Behrens and instructed him to incorporate, in the
read channel chip, structure compatible with the Cloke
Criterion in order to comply with the WDC robust sync mark
detection specification. Id. at ¶¶ 8-9.
Hull next explains that during a period between May 1994
and November 1994, he continued to work closely with employees
of Cirrus to develop the custom read channel chip for WDC in
accordance with the WDC Performance Specification; that Zook,
one
of the Dudley inventors, was designated by Cirrus for
selecting a sync mark in accordance with the Cloke Criterion;
and that Cirrus and WDC eventually agreed to incorporate into
the custom read channel chip an implementation compatible with
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