Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1987-06-16
1988-12-06
Psitos, Aristotelis M.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
369 44, 369 59, 369267, 360 7303, G11B 1700, G11B 1924
Patent
active
047899751
ABSTRACT:
An apparatus for recording and/or reproducing a data signal on or from a disk shaped recording medium having a special track in which control information is prerecorded. The apparatus reproduces the control information at first when the disk is mounted therein, and stores the reproduced control information in a memory. A rotation control cirucit for controlling the rotation of the recording medium is supplied with a control signal based on the control information read out of the memory and controls the rotation of the medium such that the linear velocity of the rotation is of a predetermined constant value according to the control information.
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Psitos Aristotelis M.
Sinderbrand Alvin
Sony Corporation
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