DIFF Subgroup
G11B 5/48 Disposition or mounting of heads relative to record carriers
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor > Disposition or mounting of heads relative to record carriers
CPC:
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (G11B11/00 take precedence) > Disposition or mounting of heads relative to record carriers
Of 8 combined children, 6 exist in both systems.
2 codes are CPC-only extensions.
4 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G11B 5/50 Interchangeable mountings, e.g. for replacement of head without readjustment IPC+CPC Available in IPC and CPC
- G11B 5/52 with simultaneous movement of head and record carrier, e.g. rotation of head (G11B5/588 takes precedence) IPC+CPC Available in IPC and CPC
- G11B 5/54 with provision for moving the head into or out of its operative position or across tracks IPC+CPC Available in IPC and CPC
- G11B 5/56 with provision for moving the head for the purpose of adjusting the position of the head relative to the record carrier, e.g. manual adjustment for azimuth correction or track centering ( G11B5/54, G11B5/58 take precedence) IPC+CPC Available in IPC and CPC
- G11B 5/58 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following +1 CPC IPC+CPC Available in IPC and CPC