Methods and devices for controlling a disk drive

Details Methods and devices for controlling a disk drive Methods and devices for controlling a disk drive

1997-09-04

2000-10-24

Grant, William

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Optimization or adaptive control

701 99, 318786, 369 4411, 369 4417, 369 4427, 369 4429, 369 4434, 369 4435, 369 4436, 369 4426, G05B 1302

Patent

active

061380482

ABSTRACT:
The present invention provides a control system (200) having a digital controller (212) producing output signals at a plurality of update times. Control circuitry is responsive to the controller (212) and outputs at least one command signal to the plant (210) at a different time than the update times. A method of controlling a plant (210) is also provided. The method includes the steps of providing a digital controller (212) to determine a plurality of switching times and to produce output signals at a plurality of update times, and providing at least one command signal to the plant (210) at a different time than the update times.

REFERENCES:
patent: 4293913 (1981-10-01), Nishimura et al.
patent: 4540923 (1985-09-01), Kade et al.
patent: 5656906 (1997-08-01), Iwashita et al.

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