Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7385883 | Stray field equalization for improved domain expansion reading In a magneto-optical recording technique by which an improved domain expansion reading is achieved, a mark region is recorded as a sub-mark portion and an adjacent sub-space portion, wherein the sum of predetermined first and second lengths of the sub-mark and sub-s... | 06/10/2008 |
| 7337263 | Method of varying recording density of data storage medium and disk drive using the method A method of and apparatus for varying a recording density of a data storage system. The method includes setting a range of a region whose recording density is to be changed, judging whether a region in which data read and write commands are to be executed is within ... | 02/26/2008 |
| 7224644 | Head arrangement for domain expansion magnetic amplifying magneto-optical system A head arrangement for reading a magneto-optical recording medium (10) having a storage layer and a read-out layer, includes an improved field generating device for generating a magnetic field used for copying a written mark from said storage layer to said re... | 05/29/2007 |
| 7200072 | Domain wall displacement magneto-optical recording and reproducing apparatus A recording/reproducing apparatus for a domain-wall-displacement magneto-optical recording medium with good format efficiency, capable of providing a good reproduction signal and securing a maximum recording region for a user is provided which comprises a recording ... | 04/03/2007 |
| 7110328 | Recording and reproducing apparatus for recording and reproducing information to and from a magneto-optical storage medium An information recording/reproducing apparatus for recording and reproducing information to and from a magneto-optical storage medium that includes a first magnetic layer for recording at least information, a second magnetic layer for regulating a switched connectiv... | 09/19/2006 |
| 7082081 | Reproducing information data from a storage medium using first and second laser of different wavelengths A method of reading out data from a domain expansion data storage such as a MAMMOS magneto-optic disk (1) which includes a data storage layer in which data is stored in the form of magnetic marks, and an expansion layer capable of copying and expanding domain... | 07/25/2006 |
| 7027365 | Magneto-optical recording for improved domain expansion reading The present invention relates to magneto-optical recording technique whereby improved domain expansion reading is achieved. A mark region is recorded as a sub-mark portion and an adjacent sub-space portion, wherein the length of the sub-mark portion is set to be les... | 04/11/2006 |
| 6985409 | Recording method and apparatus of domain wall displacement type magneto-optical recording medium The present invention provides a method of recording information on a magneto-optical recording medium of domain wall displacement type having a preformat area and a data area succeeding thereto, comprising the steps of generating a reproduction signal from said med... | 01/10/2006 |
| 6904002 | Magneto-optical reproducing method using a plurality of different reproducing beams A magneto-optical recording medium has magneto-optical recording layers (11, 12, 13) and reproducing layers (21, 22, 23). The information recorded in the reproducing layers are reproduced by means of reproducing light beams (31, 32, 33) of diffe... | 06/07/2005 |
| 6894857 | Magnetic recording apparatus and method of designing the same A method of designing a thermally-assisted magnetic recording apparatus having a magnetic recording medium, a heater and a magnetic head includes, determining a stable retention time tst for recorded magnetization and a thermal-fluctuation stability coeff... | 05/17/2005 |
| 6809994 | Method for controlling radiation power of domain expansion type magneto-optical recording medium The present invention relates to a method, an apparatus and a record carrier for controlling radiation power and/or field strength during a reading operation from a magneto-optical recording medium comprising a storage layer and a read-out layer. An expanded domain ... | 10/26/2004 |
| 6763428 | Methods and systems for performing push-pull optimization of files while file storage allocations are actively changing A method for performing full optimization of most of the files on a volume in accordance with a composed optimization plan, is performed, including the separation of less frequently accessed files from those whose number or location of clusters is being more frequen... | 07/13/2004 |
| 6700837 | Method and apparatus for reading from a domain expansion recording medium by using an external magnetic field to form and remove the expanded domain The present invention relates to a method and an apparatus for reading information from a domain expansion magneto-optical recording medium, wherein the duration of the expansion direction of an external magnetic field is determined according to the upper... | 03/02/2004 |
| 6650599 | Method and apparatus for determining power level of laser beam in magneto-optical recording device A reproducing apparatus reproduces a signal recorded in a magneto-optical disk. The magneto-optical disk includes a layered structure having a recording layer, an intermediate layer and a reproducing layer. Laser light is illuminated from an optical head ... | 11/18/2003 |
| 6628574 | Reproducing method and reproducing apparatus using plural light beam powers for transferring a magnetic domain A reproducing apparatus for a magneto-optical recording medium has, at one end of a swing arm, a magneto-optical head provided with a slider and a solid immersion lens. A reproducing light beam-detecting system is installed to the other end of the swing a... | 09/30/2003 |
| 6424602 | Magneto-optical reproducing apparatus Disclosed herein is a magneto-optical reproducing apparatus for reproducing information recorded on a magneto-optical medium comprising a substrate, and a first magnetic layer, a second magnetic layer and a third magnetic layer which are laminated on the ... | 07/23/2002 |
| 6388955 | Reproducing method for magneto-optic recording medium, and magneto-optic disk device A reproducing apparatus reproduces a signal recorded in a magneto-optical disk. The magneto-optical disk includes a layered structure having a recording layer, an intermediate layer and a reproducing layer. Laser light is illuminated from an optical head ... | 05/14/2002 |
| 6385140 | Magneto-optical recording medium and reproducing method for reproducing magnetic domain in enlarged form on a reproducing layer A magneto-optic recording medium includes a second auxiliary magnetic film, a first auxiliary magnetic film and a magneto-optic recording film on a substrate. The auxiliary magnetic films change from in-plane magnetization to vertical magnetization at cri... | 05/07/2002 |
| 5963512 | Recording/reproducing method of magneto-optical recording medium and drive system for magneto-optical recording medium In the present invention, data transmission rate is increased in the recording of the magneto-optical recording media in which the reproduction is accomplished by applying a modulated magnetic field in a scheme of "copying of the recorded magnetic domain.... | 10/05/1999 |
