Optical storage device having a plurality of juxtaposed memory cells
August 12, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3703137 3868652 Optical memory with storage in three dimensions Optical memory with fiber optic light guide Photovoltaic-ferroelectric beam accessed memory Read/write optical memory Ferroelectric memory System for reproducing a signal recorded in a magnetic recording medium by using a magnetostatic wave Read/write optical memory Optoelectronic memories with photoconductive thin films Patent #: 5327373 InventorsAssigneeApplicationNo. 284595 filed on 08/12/1994US Classes:369/14, SIMULTANEOUS DIVERSE TYPES OF STORAGE OR RETRIEVAL365/109, Photoconductive and ferroelectric365/117, Ferroelectric365/145FerroelectricExaminersPrimary: Epps, GeorgiaAssistant: Dinh, Tan Attorney, Agent or FirmForeign Patent References
International ClassesG11B 013/04G11C 011/42 Foreign Application Priority Data1992-02-18 SEAbstractThe invention relates to a read-write optical memory comprising a plurality of juxtaposed memory cells (11), each receiving a respective light beam (3). Each memory cell contains a storage medium (10), which includes a storage element (23) having stable optical states. The storage element (23) is divided into a number of memory points, and the optical state in a given memory point can be both changed and read by means of a light beam (3) directed towards the memory point. The memory can be implemented entirely without any movable mechanical parts and has a very short read-write time and an exceptionally high storage capacity. Parallel writing and reading of multibit words is possible.Other References
Field of SearchSIMULTANEOUS DIVERSE TYPES OF STORAGE OR RETRIEVALALTERNATIVE DIVERSE TYPES OF STORAGE OR RETRIEVAL Combined with diverse art structure Composite (e.g., package with preview record) Track data format/layout Specific disc profile With interdisc coupling Radiation beam modified or controlling (e.g., photosensitve, optical track) Specified material Ferroelectric Photoconductive and ferroelectric Ferroelectric Photoconductive Electron beam Polarization Magneto-optical Electron beams Continuous cells Multiaperture cell | |
