Back to results
US 6,154,432 AGranted
Optical storage system
AssigneeYenploy Pty Ltd.
InventorsFarhan Ahmed Faruqi, Donna Kourtessis Martin
Life of this patent
Estimating the term…
Abstract
An optical storage system including an optical storage means (25) for holographic storage of data and an optical head (24). One embodiment of the optical storage means is a card the size and shape of a normal credit card. The optical head and associated control means may be embodied in a optical drive the size of standard disk drives. The system is able to write, read and erase data. The storage means (25) can store terabytes of information. The optical head (24) is an integrated optical element without moving parts.
Claims25
An optical storage system comprising:
- an optical storage means for holographic storage of data in a plurality of data storage dots, said optical storage means comprising a storage medium being writable, readable and erasable and said data being stored in the form of a diffraction pattern in each said data storage dot;
- a first source of coherent radiation for writing said data in said optical storage means;
- a second source of coherent radiation for reading said data from said optical storage means;
- means for erasing said data from said optical storage means;
- an optical head for directing said coherent radiation for writing, said coherent radiation for reading and said means for erasing to said optical storage means, said optical head including means for modulating said first source of coherent radiation for forming said diffraction pattern;
- and
- a control means for controlling the optical head to write, read and erase said data;
- and signal processing means for encoding the coherent radiation for writing and decoding the coherent radiation for reading.
5 more elements
Dependencies are inferred from the claim text.