Appeal No. 96-3420
Application 08/164,783
A servo head positioning method for controlling a
position of a servo head from a first track position on a disk
to a second track position on the disk during a seek
operation, said servo head reading a servo signal from tracks
formed on the disk, said servo head positioning method
comprising the steps of:
(a) setting an initial movement quantity of the servo
head and a predetermined access time in dependence upon the
initial movement quantity;
(b) controlling velocity and position of the servo head
depending on the initial movement quantity and a difference
between a present track position of the servo head and the
second track position;
(c) detecting when the servo head reaches the second
track position;
(d) detecting passage of the predetermined access time
from a start of the seek operation;
(e) ending the seek operation after said detecting in
step
(d) if said detecting in step (c) occurs earlier than said
detecting in step (d); and
(f) ending the seek operation after said detecting in
step (c) if said detecting in step (c) occurs later than said
detecting in step (d)
The examiner’s Answer cites the following prior art:
Horie et al. (Horie) 5,016,126 May 14, 1991
OPINION
The claims stand rejected under 35 U.S.C. § 103 as
unpatentable over Horie and admitted prior art.
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