Method and arrangement for positioning a magnetic head to variou

Details Method and arrangement for positioning a magnetic head to variou Method and arrangement for positioning a magnetic head to variou

1986-01-16

1987-07-07

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 555

Patent

active

046791043

ABSTRACT:
For exact positioning of a magnetic head to various tracks of a magnetic tape by use of a stepping motor, a plurality of motor control steps required in order to position the magnetic head to the various tracks proceeding from a reference position are identified. For the compensation of manufacturing tolerances, individual positional values are identified for every magnetic tape recorder. These positional values indicate a precise position of the magnetic head on the center of the respective track. The positional values are stored in a read-only memory, or are formed by addition of stored standard values and correction values stored in a read-only memory.

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8013 Journal of the Audio Engineering Society, vol. 25, No. 12 (1977., Dec.), pp. 1041-1044, "A Uniform Track Positioning and Dimensioning System for Magnetic Recording", by E. R. Hanson.
Japan Patent Abstract 55-97025 of Hideaki Koiwai, "Positioning Device Using Microcomputer", vol. 4, No. 149 (P-32) (631), Oct. 21, 1980.
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Japan Patent Abstract 58-218031(A) of Masayuki Satou, "Magnetic Tape Storage Device", vol. 8, No. 72 (P-265) (1509) Apr. 4, 1984.

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