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US 5,034,943 AGranted
Information storage device
AssigneeInstitut Problem Modelirovania V Energetike Akademii Nauk Ukrainskoi SSR
InventorsAlexandr A. Antonov, Vyacheslav V. Petrov
Life of this patent
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Abstract
An information storage device, has a container and at least two identical tical information carriers arranged coaxially inside the container and adapted for independent rotation in relation to each other. Each optical information carrier has a hollow cylindrical base made of a material transparent for laser radiation and a recording layer applied on this cylindrical base.
Claims9
An information storage device, comprising:
- a container;
- a first optical information carrier rotatably mounted within the container and having a hollow cylindrical base, the base being transparent for laser radiation and having a recording layer applied thereon;
- at least one additional optical information carrier rotatably mounted within the container, and being identical to and arranged coaxially with the first optical information carrier;
- and
- means for providing respective independent rotation of the first carrier and each additional carrier.
2 more elements
Dependencies are inferred from the claim text.