Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1996-09-04
1999-09-07
Hindi, Nabil
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
369 13, G11B 724
Patent
active
059497513
ABSTRACT:
The optical recording medium includes a first layer which is in a state that includes different phases having different optical constants and in which information has been recorded. The second layer is capable of changing states, which states include different phases and different optical constants. There is also provided a method of reproducing information recorded on an optical recording medium which includes a first layer having different phases and different optical constants and a second layer capable of changing states, which states include different phases and different optical constants. The method employs irradiating the second layer with a laser beam, and reproducing information recorded on the first layer from an area corresponding to an area of the second layer where the optical constants change due to laser irradiation.
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Horikawa Kunihiko
Muramatsu Eiji
Hindi Nabil
Pioneer Electronic Corporation
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