Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1988-05-10
1991-04-02
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 7703, 360 7704, 360 7705, 360 7804, G11B 5596
Patent
active
050050893
ABSTRACT:
A micro-Winchester disk drive subsystem includes a data block sequencer, cache memory and interface for a host computing machine. The drive includes a base and a plurality of non-removable directly rotated disks forming data storage surfaces. A balanced rotary head transducer actuator is mounted to the base for a plurality of data transducer heads among a multiplicity of concentric data tracks formed on each data storage surface of each of the disks. The track following servo system includes a position encoder coupled between the actuator structure and the base, prerecorded data track centerline information at a radially outermost region and at a radially innermost region of each data surface, and a temperature sensor for sensing temperature of the base at the vicinity of the position encoder. An actuator driver circuit is connected to supply electrical driving current to the actuator structure; and, a single, time divided multi-tasked digital including an analog to digital converter is connected to receive the position information from the position encoder, centerline information from the disk surfaces read by the data transducer and temperature sensed by the temperature sensor during a calibration operation in one phase of its operational cycle, and other phase being devoted to supervision data block handling functions of disk drive data block sequencer cache memory and interface. During track following operations, centerline information is derived from information obtained in the calibrate operation. The temperature sensor is periodically checked and recalibration is carried out when drive temperature changes.
REFERENCES:
patent: 3753254 (1973-08-01), Ruble et al.
patent: 4207601 (1980-06-01), Desai et al.
patent: 4396959 (1983-08-01), Harrison et al.
patent: 4516177 (1985-05-01), Moon et al.
patent: 4639863 (1987-01-01), Harrison et al.
patent: 4669004 (1987-05-01), Moon et al.
patent: 4882671 (1989-11-01), Graham et al.
Q200 Series Programmer's Manual, Appendix B, Quantum Corp., .COPYRGT.1986, 1987.
Lindsay Joshua
Moon William G.
Peterson Bruce R.
Stone Thomas R.
Thanos William N.
Garland Steven R.
Harrison David B.
Psitos Aristotelis M.
Quantum Corp.
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