Information recording/reproducing apparatus with disk having sections of different angular velocity
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United States of America Patent
Stats
-
Jul 16, 1985
Grant Date -
N/A
app pub date -
Sep 23, 1982
filing date -
Nov 20, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a data recording/reproducing apparatus, a DC motor is provided for rotating an optical disk. A recording/reproducing head is driven to move over the disk linearly in the radial direction of the disk, thereby defining a plurality of data-storing tracks on the disk. A motor control section is provided for controlling the rotation of the disk so as to change the angular velocity of the disk when the head tracing is changed among the track groups. While the head is tracing the tracks included in the same track group, the rotation of the disk is made constant so that the disk rotates at a constant angular speed.
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