Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1992-10-06
1994-05-03
Young, W. R.
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
369 4428, 369 4429, 369 54, 369 4434, G11B 7085
Patent
active
053094174
ABSTRACT:
An information recording and reproducing apparatus having a motion controller for an optical head capable of moving the optical head to a target position in a short time while eliminating an error to be caused by mechanical elements and without reading a present address during the motion of the optical head from a far jump to a near jump. In the information recording and reproducing apparatus for an optical information recording medium for recording and reproducing information to and from the medium by scanning a light beam from the optical head to a track, the motion of the optical head is controlled by a combination of a far jump driving the optical head and a near jump driving an objective lens assembled with the optical head. During the far jump, the optical head is controlled to move by half the motion distance in an acceleration mode, and by the remaining half in a deceleration mode.
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Onodera Akira
Yamazaki Koichi
Nippon Conlux Co., Ltd.
Young W. R.
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