Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1993-03-08
1995-06-20
Epps, Georgia Y.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
369 4425, 369 4433, 369 32, G11B 700
Patent
active
054266270
ABSTRACT:
An optical information recording and/or reproducing apparatus, wherein an information recording medium and an optical head are moved relatively in a track direction to record optical information in the information recording medium and/or reproducing optical information recorded in the information recording medium. In the apparatus a relative moving speed between said information recording medium and said optical head is detected, and it is arranged such that the optical information is not recorded and/or reproduced when the detected relative moving speed deviates from a given speed. Therefore, in the apparatus, there would not occur accidents wherein (1) optical information is recorded on not only a recording area but also ID portions that are formed on the information recording medium, and (2) proper reproduction of information cannot be conducted because the relative moving speed between the information recording medium and the optical head is too fast and the reproducing signals occur too late to coincide with pits formed on the information recording medium.
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Epps Georgia Y.
Hindi Nabil
Olympus Optical Co,. Ltd.
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