Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1994-06-30
1996-06-11
Ben, Loha
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369262, 369291, 360133, G11B 700
Patent
active
055263372
ABSTRACT:
A package for a holographic storage media disk (10) is provided that is comprised of a super structure (18) that is operable to hold the disk (10). The disk (10) is comprised of a photopolymer material that is formed in a disk-shaped member having a hub (14) disposed at the center thereof. The disk (10) is disposed in the structure (18) and then a cover (24) disposed thereover, the cover (24) being opaque. An access opening (28) is disposed within the cover (24) to allow access to the surface of the disk (10). A hub opening (26) is provided for allowing access to the hub (14). The hub (14) is disposed such that there is a light tight seal relative to the cover (24). A door (32) is provided for reciprocating over the opening (28) to light seal the package when data is not being recorded to the disk (10) or read therefrom. Additionally, layers of felt (161) and (163) are disposed on the interior surfaces of the cover to dampen any vibrations in the package, and a fiduciary marking opening (30) is provided for allowing access to fiduciary markings (164) disposed on the edge of the disk (10). The door (32) is operable to lock when in a portable mode and unlock when in an access mode.
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patent: 5103363 (1992-04-01), Yamada et al.
patent: 5111446 (1992-05-01), Fujita
patent: 5214555 (1993-03-01), Hughes
patent: 5272693 (1993-12-01), Fujisawa
patent: 5299186 (1994-03-01), Tsurushima
patent: 5323382 (1994-06-01), Takahashi
patent: 5326608 (1994-07-01), Ikebe et al.
Dewald Duane S.
Gupton Lindsay
Housey Randal
McCarty Vincent D.
Swindler Dan
Ben Loha
Howison Gregory M.
Tamarack Storage Devices
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