Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 8014235 | Optical output device, magnetic storage medium drive unit, and head slider An optical device includes a clad composed of a material having a first refractive index, a core which is embedded in the clad, composed of a material having a second refractive index different from the first refractive index, and tapers toward the end-point thereof... | 09/06/2011 |
| 7643382 | Preheat bulk erasing device for phase-change type optical disk When carrying out magnetization, annealing, and initialization of a recording film by applying a laser beam to the recording film while rotating an optical recording medium 10 by a motor 11, light of a strong visible-light lamp 15 is projected a... | 01/05/2010 |
| RE39901 | Initialization of phase-change optical recording medium A method of initializing a phase-change optical information recording medium is provided, using an optical system incorporating a semiconductor laser device. The laser device is characterized by a specified spatial power distribution. In a spatial distribution of th... | 10/30/2007 |
| 7277363 | Magneto-optical recording or reproducing device A magneto-optical recording or reproducing device having an information erasing means for erasing information or data recorded on a magneto-optical recording medium. According to the invention, the information erasing means comprises an erasing magnet having a field... | 10/02/2007 |
| 7274626 | Magneto-optical recording using a heating element A perpendicular magnetic recording medium for thermo-magnetic printing has an ultra-high recording density and is resistant to thermal decay of magnetization. An intermediate layer of the medium is provided between a first recording layer using a low-noise Co alloy ... | 09/25/2007 |
| 7193943 | Optical disk apparatus, optical recording method, optical recording program and storage medium An optical disk apparatus is disclosed. A light emitting element emits a laser beam directed to a recordable optical disk. A driver rotates the optical disk. A first optimum recording power obtaining part performs test recording on the optical disk while the optical... | 03/20/2007 |
| 7133330 | Magneto-optical recording apparatus having recovery processing unit A magnetooptic recording medium has at least a recording layer for recording data and a reproducing layer for reproducing the data recorded in the recording layer onto a substrate and reproduces the data by setting a proper reproducing laser power upon reproduction.... | 11/07/2006 |
| 6980470 | Magnetic storage element, recording method using the magnetic storage element The present invention provides a magnetic storage element capable of recording with a small amount of recording current without reducing a coercive force of the magnetic storage element employed in an MRAM and a recording method using the same. The magnetic storage ... | 12/27/2005 |
| 6975564 | Magneto-optical recording medium for use in domain wall displacement detection system, and method for producing the same An optical disk of the present invention includes a substrate and a recording layer disposed above the substrate, and reproduces an information signal by a DWDD system, using light incident from the substrate side. The optical disk further includes a first dielectri... | 12/13/2005 |
| 6901034 | Magneto-optical storage medium having data in uniform magnetized recording direction A magnetooptic recording medium has at least a recording layer for recording data and a reproducing layer for reproducing the data recorded in the recording layer onto a substrate and reproduces the data by setting a proper reproducing laser power upon reproduction.... | 05/31/2005 |
| 6767697 | Magneto-optical disk and method for producing same by initializing with a laser having a predetermined wavelength A magneto-optical disk of the present invention includes a substrate and a recording layer disposed above the substrate, and reproduces an information signal by a DWDD system, using light incident from the substrate side. The optical disk further includes a first di... | 07/27/2004 |
| 6633512 | Magneto-optical information storage apparatus and information storage method with function of updating default value of applied magnetic field The present invention provides an information storage apparatus which at least records information by applying a magnetic field to a recording medium with a smaller power consumption. A default value of a recording magnetic field is set to a minimum value... | 10/14/2003 |
| 6574703 | Initializing selected extents of a storage device A system and method for initializing large portions, or extents, of a mass-storage device in the background so that such overwriting processes do not significantly affect latency as experienced by a host. The method extends the use a system intended for b... | 06/03/2003 |
| 6445669 | Initialization of phase-change optical recording medium A method of initializing a phase-change optical information recording medium is provided, using an optical system incorporating a semiconductor laser device. The laser device is characterized by a specified spatial power distribution. In a spatial distrib... | 09/03/2002 |
| 5976667 | Magneto-optical recording medium utilizing magnetostatic coupling, and method of recording information on the medium A magneto-optical recording medium includes at least a reproduction layer and a memory layer on a substrate on which a groove and a land is formed. Information is reproduced from the magneto-optical recording medium by transferring magnetization informati... | 11/02/1999 |
| 5859831 | Disk cartridge A disk cartridge has an overwritable magneto-optical disk rotably mounted therein. The overwritable magneto-optical disk cartridge is usable in compatible type disk drives which also accept conventional, non-overwritable, magneto-optical disks. A magnetic... | 01/12/1999 |
| 5652738 | Magnetooptical recording method for overwriting information on a recording medium includes selecting one of two recording modes based on recording information A magnetooptical recording method for overwriting information on a magnetooptical recording medium, which has a first magnetic layer and a second magnetic layer having a larger coercive force and a lower Curie temperature than those of the first magnetic ... | 07/29/1997 |
| 5420846 | Recording medium having a plurality of nonlinear transmission characteristics An information recording medium includes an information recording layer on which at least information is to be recorded by irradiating light, and a light transmission restricting layer which has a plurality of nonlinear transmission characteristics or non... | 05/30/1995 |
| 5325345 | Magneto-optical method and apparatus for recording/reproducing data When data are thermo-magnetically recorded to a perpendicular magnetized film of a recording medium, it is possible to prevent unnecessary magnetic domains from being formed and unerasable magnetic domains from being produced. The medium 11 is rotated by ... | 06/28/1994 |
| 5309416 | Method and apparatus for initializing intermediate region between tracks on magnetooptical recording medium A method for initializing a magnetooptical recording medium having tracks onto which information is recorded are formed in parallel and having intermediate regions among the tracks. The method includes the steps of scanning a track by a laser beam while a... | 05/03/1994 |
| 5210724 | Optomagnetic recording method and apparatus which precludes an interface magnetic wall within block magnetic wall An information recording method, which performs recording of an information by use of an optical magnetic recording medium provided with a first magnetic layer and a second magnetic layer having higher Curie point and lower coercive force at room temperat... | 05/11/1993 |
| 5208799 | Magneto-optic recording method and magneto-optic recording/reproducing apparatus A method and apparatus for recording and reproducing information onto and from a magneto-optic recording medium is disclosed. The magneto-optic recording medium has at least a reproducing layer and a recording layer. A recording optical head records infor... | 05/04/1993 |
| 5199022 | Disk having data memorizing portion including land-shaped and groove-shaped areas, and writing/reading apparatus for the same A magneto-optical data reading member includes a transparent disk substrate, and land-shaped areas formed on the disk substrate in a spiral manner so as to be parallel with each other, and groove-shaped areas formed to be stepped with respect to the land-... | 03/30/1993 |
| 5175721 | Magneto-optical recording and reading device with initilization A recording and reading method and device of magneto-optical memory elements are provided to record and read an information signal to and from the magneto-optical memory elements, which contain at least two magnetic layers that are magnetically coupled, b... | 12/29/1992 |
| 4858212 | Recording method on magnetooptical disc with laser magnetic field A magnetooptical disc is initialized by reversing the direction of magnetization at fixed intervals and the direction of external magnetic field applied to it is reversed for each overwrite recording by exposure to laser light.... | 08/15/1989 |
