Disk recording and reproducing head system having track seeking

Details Disk recording and reproducing head system having track seeking Disk recording and reproducing head system having track seeking

1986-10-20

1989-01-24

Faber, Alan

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

369 32, 371 7, 371 10, G11B 2108

Patent

active

048004529

ABSTRACT:
A head system for a disk on which address data are recorded on the disk. A head is first driven to an intended track and an attempt is made to read the address. If the address is not successfully read in a predetermined time, corresponding to the tracing of predetermined number of tracks, the head is driven in one radial direction and address reading is again attempted for the predetermined time. If again the address reading is unsuccessful, the head is driven in the opposite radial direction. The alternating head movement is continued until an address is successfully read.

REFERENCES:
patent: 4413292 (1983-11-01), Sugiyama et al.
patent: 4428074 (1984-01-01), Abe et al.
patent: 4536863 (1985-08-01), Giddings
patent: 4706133 (1987-11-01), Giddings

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