G11B11/1055 - CPC Classification

Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups  -  or by different subgroups of group ; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording and a beam of light for reproducing, e.g. light-induced thermomagnetic recording, Kerr effect reproducing Disposition or mounting of transducers relative to record carriers

• G11B11/10552 » {Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base } 4
• G11B11/10556 » {with provision for moving or switching or masking the transducers in or out of their operative position} 1
• G11B11/10576 » {with provision for moving the transducers for maintaining alignment or spacing relative to the carrier} 33
• G11B11/1058 » {Flying heads} 66

Recent Application in this class: