Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1998-05-12
2000-08-08
Hindi, Nabil
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
G11B 700
Patent
active
061011614
ABSTRACT:
An angular-multiplexed storage system incorporates therein a cylindrical storage medium for storing multiple holograms. The angular-multiplexed storage system comprises a light source for generating a coherent light beam, a beam splitter for splitting the coherent light beam into a reference and a signal beams, a storage medium for three-dimensionally storing the multiple holograms thereinto, the storage medium being in the form of a cylinder, a pair of mirrors for directing the signal and the reference beams to the storage medium, respectively, and a stepping motor for rotating the storage medium about an axis perpendicular to a plane which includes the signal and reference beams, wherein the axis passes through a center point of the storage medium.
REFERENCES:
patent: 5481523 (1996-01-01), Dewald
patent: 5995251 (1998-07-01), Hesselink et al.
Daewoo Electronics Co. Ltd.
Hindi Nabil
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