Appeal No. 96-1209
Application 08/168,805
mutually orthogonal axes x, y, and z and to resolve the
measurement into respective vectors a , a , and a ;x y z
computational means for deriving a net acceleration a of
net
the disk drive from the vectors a , a , and a ;x y z
evaluation means for comparing the net acceleration anet
with a selected acceleration threshold level indicative of a
falling disk drive and for outputting a first signal when the
net acceleration a exceeds the threshold level;
net
timing means for measuring duration of the first signal
output by the evaluation means and for outputting a second
signal when the measured duration exceeds a selected reference
time period; and
control means for preparing, in response to the second
signal output by the timing means, at least one of the storage
disk and the actuator arm for a shock induced when the disk
drive impacts a surface at the second elevation.
The examiner relies on the following reference:
Comerford 5,227,929 July
13, 1993
Claims 11 through 15 stand rejected under 35 U.S.C.
§§ 102(a) or (e) as anticipated by Comerford. Claims 1, 2, 4
through 10, 15 through 18 and 20 stand rejected under 35
U.S.C.
§ 103 as unpatentable over Comerford.
Reference is made to the brief and answer for the
respective positions of appellant and the examiner.
3
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next
Last modified: November 3, 2007