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 |
| 7372656 | disk drive with side erase control Embodiments of the invention provide a disk drive that is capable of effectively controlling a side erase, which is one of the problems with the use of the perpendicular recording technology. In one embodiment, tracks on a recording medium are formed concentrically ... | 05/13/2008 |
| 7350118 | Method and apparatus for recording information in concatenated manner A method of recording data as presence/absence of marks on an information recording medium includes a step of obtaining data pieces, each of which has size of one block and is made by adding error-correction-purpose data to information data, a step of attaching to e... | 03/25/2008 |
| 7301884 | Method of and apparatus for recording data on optical recording medium A method of and apparatus for recording data on an optical recording medium form a mark or a space by using a recording waveform having an erase pattern containing a multi-pulse. The method and the apparatus prevent distortion of the mark or the space and improve a ... | 11/27/2007 |
| 7295505 | Method of and apparatus for recording data on optical recording medium A method of and apparatus for recording data on an optical recording medium form a mark or a space by using a recording waveform having an erase pattern containing a multi-pulse. The method and the apparatus prevent distortion of the mark or the space and improve a ... | 11/13/2007 |
| 7280460 | Method of and apparatus for recording data on optical recording medium A method of and apparatus for recording data on an optical recording medium form a mark or a space by using a recording waveform having an erase pattern containing a multi-pulse. The method and the apparatus prevent distortion of the mark or the space and improve a ... | 10/09/2007 |
| 7274647 | Method of and apparatus for recording data on optical recording medium A method of and apparatus for recording data on an optical recording medium form a mark or a space by using a recording waveform having an erase pattern containing a multi-pulse. The method and the apparatus prevent distortion of the mark or the space and improve a ... | 09/25/2007 |
| 7126895 | Optical disk recorder optimizing laser power for initial writing and overwriting A method is designed for recording data on a recordable area of an optical disk by irradiating thereto an optical beam having a writing power effective to write the data in the recordable area including a non-recorded area which is blank and a recorded area which is... | 10/24/2006 |
| 7110340 | Method and apparatus for recording data on an optical recording medium An optical recording apparatus and method thereof form a mark and a space by radiating a laser signal corresponding to a recording pulse having a peak level and a bias level onto an optical recording medium. The optical recording apparatus includes a recording pulse... | 09/19/2006 |
| 7088649 | Recording medium for storing linking type information, method of processing defective area using the same, and recording and/or reproducing apparatus therefor A recording medium storing linking type information, a method of processing a defective area in the medium and recording and/or reproducing apparatus therefor. The recording medium stores information indicating that linking is applied immediately after the defective... | 08/08/2006 |
| 7042820 | Recording medium for storing linking type information and method of processing defective area using the same A recording medium storing linking type information and a method of processing a defective area in the medium. The recording medium stores information indicating that linking is applied immediately after the defective area, distinguishing a linking type which occurs... | 05/09/2006 |
| 6963418 | Communication system and method Administering client computer (3) is connected to a plurality of facsimile machines (1) over a LAN (2). The facsimile machines (1) store quick-dial telephone numbers in RAM (11), and operating programs in flash memory (13). ... | 11/08/2005 |
| 6925040 | Information recording method, information recording medium and information recording apparatus A recording medium which has a zone or zones storing lookup tables comprising an edge shift value of leading and trailing recording pulses. ... | 08/02/2005 |
| 6922386 | Optical disk apparatus Light emitted from a laser is divided into two light waves so that the ratio of the power of one light wave to the power of the other will be appropriate. The resultant light waves are irradiated to the same track on a medium. The preceding spot is used for erasure,... | 07/26/2005 |
| 6888781 | Optical disk apparatus and method for recording data by utilizing an overwrite technique or a two-path write technique There are provided an optical disk, a magneto-optical disk, a disk apparatus therefor, and a data recording method which can provide improved recording/reproducing characteristics and record durability without linear velocity dependency even if the data access speed... | 05/03/2005 |
| 6788629 | Recording medium for storing linking type information and method of processing defective area using the same A recording medium storing linking type information and a method of processing a defective area in the medium. The recording medium stores information indicating that linking is applied immediately after the defective area, distinguishing a linking type which occurs... | 09/07/2004 |
| 6788630 | Recording medium for storing linking type information, method of processing defective area using the same, and recording and/or reproducing apparatus therefor A recording medium storing linking type information, a method of processing a defective area in the medium and recording and/or reproducing apparatus therefor. The recording medium stores information indicating that linking is applied immediately after the defective... | 09/07/2004 |
| 6760535 | Method and apparatus for cache management for a digital VCR archive An apparatus marks files within a content archive. The content archive contains a database that has a plurality of content files. The content archive also contains a plurality of entries or records. Each of the entries corresponds to a distinct one of the plurality ... | 07/06/2004 |
| 6731446 | METHOD FOR FORMING A MAGNETIC PATTERN IN A MAGNETIC RECORDING MEDIUM, METHOD FOR PRODUCING A MAGNETIC RECORDING MEDIUM, MAGNETIC PATTERN FORMING DEVICE, MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING DEVICE A method and device for forming a magnetic pattern in a magnetic recording medium, a magnetic recording medium formed thereby and a magnetic recording device that includes a magnetic recording medium formed by this method and/or device. The magnetic recording medium... | 05/04/2004 |
| 6714503 | Adaptive recording method and apparatus for high-density optical recording apparatus An adaptive recording method and apparatus for optimizing power of a laser diode in high density optical recording. The mark size of input NRZI (Non Return to Zero Inversion) data is discriminated and the power of overwrite pulses is varied in accordance with the di... | 03/30/2004 |
| 5475657 | Overwrite capable magnetooptial recording apparatus An overwrite capable magnetooptical recording apparatus comprises a moving magnetooptical recording medium to which is applied an initial magnetic field and a laser beam which irradiates the moving medium. The beam intensity is modulated, in accordance wi... | 12/12/1995 |
| 5430696 | Magneto-optical recording medium A magneto-optical recording method capable of overwriting on a magneto-optical recording medium is disclosed. The magneto-optical recording medium includes a recording layer comprising a single magnetic layer with magnetic anisotropy and the magneto-optic... | 07/04/1995 |
| 5369629 | Magneto-optical recording method and magneto-optical recording medium A magneto-optical recording method for recording information in an overwrite mode in a magneto-optical recording medium by the application of a laser beam is disclosed. The magneto-optical recording medium includes a substrate, and at least two magnetic r... | 11/29/1994 |
| 5337293 | Magneto-optical recording method and recording medium for use in the same A magneto-optical recording method capable of overwriting on a magneto-optical recording medium is disclosed. The magneto-optical recording medium includes a recording layer comprising a single magnetic layer with magnetic anisotropy and the magneto-optic... | 08/09/1994 |
| 5323366 | Magneto-optical recording method with switching and maintaining perpendicular magnetization light beam application modes A magneto-optical recording method is disclosed, by which a magnetic recording pattern is formed in an overwriting mode, utilizing demagnetizing field, by directing a light beam onto a perpendicularly magnetized film layer of a magneto-optical recording m... | 06/21/1994 |
| 5224080 | Method , apparatus, and medium for magneto-optical recording The medium consists of two exchange-coupled RE-TM amorphous layers (a memory layer and a reference layer) whose Curie temperatures are almost the same and only one of which is RE-rich without a compensation temperature, the two layers being laminated dire... | 06/29/1993 |
| 5200934 | Method and apparatus for direct overwrite on magneto-optical recording media using circularly polarized microwaves A method of and system for utilizing circularly polarized microwave radiation in order to provide for the direct overwriting of previously recorded data on a single-layer magneto-optical disk is disclosed in which a microwave source is used to generate a ... | 04/06/1993 |
| 5197049 | Head and media for optical data storage A head and media for optical data storage with a media in which a partially light transmissive recording layer and a reflective layer are located on opposite faces of a transparent substrate layer. The head emits a light beam which passes through the reco... | 03/23/1993 |
| 5144601 | Magneto-optical overwriting methods using erasing pulses, each of which has a higher frequency and narrower width than that of the overwriting pulses A method of overwriting information in a magneto-optical memory medium which includes a simultaneous writing and erasing step of continuously irradiating a written information-carrying area of the recording layer of the memory medium with two different pu... | 09/01/1992 |
| 5130958 | Method of and apparatus for overwritting a magneto-optic disk Information on a spinning magneto-optic disk is overwritten by illuminating a spot on a track on the disk with an erasing beam in the presence of a biasing magnetic field, and illuminating another spot on the same track with a writing beam during the same... | 07/14/1992 |
| 4888750 | Method and system for erase before write magneto-optic recording Method and system for overwriting binary data values in microscopic storage regions of a thin film ferrimagnetic layer without using external magnetic bias aiding the recording process. The ferrimagnetic layer is selected having a compensation temperature... | 12/19/1989 |
| 4882718 | Single-head, direct overwrite magneto-optic system and method A magneto-optic information storage system is disclosed suitable for compensation point recording in the absence of an external bias field. The pulse of light used to erase imparts less energy than the pulse used to write. Also disclosed is a method for d... | 11/21/1989 |
