G - Physics – 11 – B
Patent
G - Physics
11
B
352/21.33
G11B 23/00 (2006.01) G05B 19/23 (2006.01) G11B 5/55 (2006.01)
Patent
CA 1132252
Abstract of the Disclosure A time optimal function generator in a coarse positioning system for magnetic heads in a magnetic disc device is designed to accelerate the magnetic heads as rapidly as possible to the exact point at which they must decelerate as rapidly as possible to stop at the new track location when mov- ing from an old track location. This device uses as an input the output of a difference register which contains the difference between the present track address and the new track address. The system is designed to control the servo transducer positioning system in a generally linear fashion as it ap- proaches the new track address but in a square root fashion when the differ- ence is large. The system contains a square root response portion and a linear response portion with weighting devices to control the proportional response of the system.
347307
Magnetic Peripherals Inc.
Smart & Biggar
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