Integrated read/write head for ferroelectric optical storage
November 3, 2018. 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 ReferencesProcess for reading-out information from electrically polarizable data carriers by means of electron beams Optical disk memory system utilizing a chiral smectic liquid crystal Information writing method for an optical disc memory system utilizing a smectic chiral liquid crystal Method and apparatus for bistable optical information storage for erasable optical disks Photorefractive, erasable, compact laser disk Read/write optical memory Optical information reading apparatus with waveguide and diffraction grating Optical head with flying lens Optical recording system employing a solid immersion lens Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider InventorApplicationNo. 185470 filed on 11/03/1998US Classes:369/121, With particular light source (e.g., laser, CRT with phosphor)369/13.01, STORAGE OR RETRIEVAL BY SIMULTANEOUS APPLICATION OF DIVERSE TYPES OF ELECTROMAGNETIC RADIATION369/44.37, Plural incident beams369/126, Electrical modification or sensing of storage medium (e.g., capacitive, resistive, electrostatic charge)369/288Specified materialExaminersPrimary: Dinh, TanAssistant: Chu, Kim-Kwok International ClassG11B 007/00AbstractAn integrated read/write head structure saves and retrieves saved data stored in storage locations on a ferroelectric optical storage medium. A first ultra-violet light emitting diode generates a single beam for exciting the electrons of a ferroelectric molecule of the optical storage medium. An induced electric field transducer orients the ferroelectric molecules potential difference during saving data. A second ultra-violet light emitting diode generates a single beam and a silicon photo diode detects the reflected ultra-violet light from a ferroelectric molecule.Field of SearchLight intensity adjustment or maintenanceRadiation beam modification of or by storage medium Electrical modification or sensing of storage medium (e.g., capacitive, resistive, electrostatic charge) With detail, configuration, or adjunct of element having slit or aperture in radiation path Specified material Plural incident beams | |
