G - Physics – 11 – B
Patent
G - Physics
11
B
352/21.2, 352/21
G11B 5/012 (2006.01) G11B 5/55 (2006.01) G11B 19/02 (2006.01)
Patent
CA 1111133
CONTROL SYSTEM FOR DISK DRIVE ABSTRACT OF THE DISCLOSURE A disk drive comprises a housing having a door through which a cartridge including a recording disk therein may be insert- ed. A spindle drive assembly is mounted in the housing and is responsive to a first set of instructions for rotating the recording disk of a disk cartridge loaded into the housing through the door and onto the spindle drive assembly. An actuator is also mounted in the housing and is capable of controlled reciprocal movements relative to the axis of rotation of the spindle drive assembly. A head carriage assembly is mounted in the housing to the actuator and includes at least one electromagnetic read/write head thereon for reading data from and writing data onto tracks of the recording disk of a cartridge loaded onto the spindle drive assembly. Servo control apparatus is mounted in the housing and is responsive to a second set of instructions for controlling the speed and direction of the reciprocal movements of the actuator. Additionally,read/write apparatus is mounted in the housing and is responsive to a third set of instructions for controlling the reading and writing of data by the electromagnetic head. Further, programmed data processing means is mounted in the housing and is connected to the spindle drive assembly, the servo control system and the read/write apparatus for generating the first, second and third sets of instructions under program control.
295630
Cizmic Stipe
Edwards Wayne L.
Griffith David L.
Halfhill Martin O.
Jacques James O.
Sim & Mcburney
Xerox Corporation
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