Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Synchronizing moving-head moving-record recorders
Patent
1997-08-08
1999-10-05
Faber, Alan
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Synchronizing moving-head moving-record recorders
360 7309, 360 7714, G11B 2104
Patent
active
059633891
ABSTRACT:
The tape transport system acquires telemetry information pertaining to the tape medium at a position in advance of the associated tape segment passing over the movable read head. The advance telemetry information includes tape motion and position information which is used to identify both physical defects in the tape medium and misalignment of the tape medium with respect to the movable read head. The advance telemetry information are used to adjust the tape speed and the position of the movable read head with respect to the tape medium as the tape moves ahead to encounter the read head. This compensation can significantly reduce the data loss errors induced by tape speed and tape tracking errors.
REFERENCES:
patent: 2938962 (1960-05-01), Konins et al.
patent: 3051797 (1962-08-01), Johnson
patent: 4014040 (1977-03-01), Kornhaas
patent: 4263625 (1981-04-01), Warren
patent: 5402956 (1995-04-01), Lemke
Matsushita Electric Industrial Co, Ltd., Audio and Video Systems Division; Technical Guide, vol. 1-2, AJ-D350.
Jurneke Joe Kent
Wojciechowski Matthew Peter
Faber Alan
Storage Technology Corporation
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