Appeal No. 95-2910
Application 08/084,337
DECISION ON APPEAL
This is a decision on the appeal under 35 U.S.C. § 134
from the examiner's rejection of claims 1, 3-12, 14-21 and 26-
47, which constitute all the claims remaining in the
application. An amendment after final rejection was filed on
June 15, 1994 but was denied entry by the examiner. A second
amendment after final rejection was filed on June 29, 1994 and
was entered by the examiner.
The invention pertains to a method and apparatus for
reducing track-switch latency between data transfer operations
on a present track and a new track in a disk drive system.
Specifically, the time it will take to begin movement of the
active head, or leadoff time, is compared to the time it will
take to finish the current read or write operation on the
active track. Based upon this comparison, it is determined
whether preprocessing operations for moving the head should be
implemented.
Representative claim 1 is reproduced as follows:
1. Method for reducing track-switch latency between
data transfer operations on a present track and a new track in
a disk drive when said present track and said new track are
operated on by a currently active head for said present track
and a next selected head for a new track, said active and next
2
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