Appeal No. 95-2439
Application No. 08/080,353
The invention pertains to a recording system which is
adaptable to multiple supply voltages and capable of
dynamically adjusting the performance of the system in
response to variations in the operating power supply voltage.
Representative independent claim 1 is reproduced as
follows:
1. A recording system comprising:
a disk drive for operation from a supply potential;
a reset circuit coupled to receive an input voltage and a
reference potential, said reset circuit for comparing said
input voltage against said reference potential and for
generating a reset signal disabling said disk drive whenever
said input voltage is less than said reference potential;
an adapter circuit including means for configuring said
disk drive in first and third modes of operation compatible
with a first predetermined operating voltage, and second and
fourth modes of operation compatible with a second
predetermined operating voltage, said first predetermined
voltage being larger than said second predetermined voltage,
said adapter circuit generating said input voltage as a
function of said supply potential;
a logic device coupled to said adapter circuit for
selecting a first set of seek parameters utilized by said disk
drive in response to said first mode of operation and for
selecting a second set of seek parameters utilized by said
disk drive in response to said second mode of operation, said
logic device monitoring said supply potential when said disk
drive is configured in said third and fourth modes of
operation such that when said supply potential drops from said
first predetermined operating voltage and said disk drive is
configured in said third mode of operation said logic device
selects said second set of seek parameters and outputs a
control signal to said adapter circuit to adapt said input
voltage compatible with said second predetermined operation
voltage; and
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007