Using servowriter medium for quickly written servo-patterns on m

Details Using servowriter medium for quickly written servo-patterns on m Using servowriter medium for quickly written servo-patterns on m

1996-11-27

1999-11-23

Kim, W. Chris

Dynamic magnetic information storage or retrieval

Record copying

360 55, G11B 586, G11B 502

Patent

active

059911042

ABSTRACT:
Servo-pattern information is magnetically recorded on a product disc by magnetic print-through from a master medium. The master servo-writing medium is brought into close proximity with the product "slave" disc, and the two are subjected to an external magnetic field which assists in transferring magnetic servo-patterns to the slave disc in a print-through process. The preferred external magnetic field alternates and rotates with respect to the master/slave combination. In an alternative product disc structure, the magnetic layer is magnetically altered in a servo-pattern configuration. Non-magnetic portions of the servo pattern are created which define both gray code and servo burst information for the product disc.

REFERENCES:
patent: 3258750 (1966-06-01), Shew
patent: 3593331 (1971-07-01), Connell et al.
patent: 3753252 (1973-08-01), Tietze
patent: 3777075 (1973-12-01), Hendershot et al.
patent: 3844907 (1974-10-01), Kitamoto et al.
patent: 4783705 (1988-11-01), Moon et al.
patent: 4802050 (1989-01-01), Miyabayashi et al.
patent: 5193034 (1993-03-01), Tsuyoshi et al.
patent: 5210672 (1993-05-01), Ivers et al.
patent: 5278703 (1994-01-01), Rub et al.
patent: 5350618 (1994-09-01), Togawa et al.
patent: 5523897 (1996-06-01), Nelson et al.

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