Patent ID: 6121742
Filing Date: 2000-09-19
Classification: G11B

Abstract:
An actuator assembly for a computer disc drive system having one or more magnetic discs adapted to store data, the actuator assembly comprising:a plurality of actuator arms, each rotatable about a pivot axis independently from another one of the plurality of actuator arms;a plurality of read/write heads, each mounted at a distal end of one of the actuator arms so as to be proximate a surface of one of the magnetic discs;a plurality of voice coil motors, each coupled to at least one of the actuator arms, each adapted to controllably rotate its associated at least one actuator arm about the pivot axis independently from another one of the plurality of voice coil motors; anda single servo control circuit adapted to control the plurality of voice coil motors, the servo control circuit adapted to dynamically allocate servo bandwidth to the plurality of voice coil motors according to a present activity of each voice coil motor.