Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1995-10-03
2000-06-13
Faber, Alan T.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
369 50, G11B 1546
Patent
active
060756705
ABSTRACT:
For scanning a disc-shaped information carrier at a high average information rate and with minimum access time, the angular velocity is decreased substantially as the radial distance to the scan location increases, while at the same time the linear velocity of track scanning increases substantially. The track may be divided into zones which are scanned with constant angular velocity. With respect to the inner tracks of at least two adjacent zones, or the innermost and the outermost tracks, the angular velocity decreases less than inversely with increase of radial distance, while the linear velocity increases less than proportionally with increase of radial distance.
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Bakx Johannus L.
Stan Gheorghe S.
Faber Alan T.
Treacy David T.
U.S. Philips Corporation
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