Patent application number | Description | Published |
20090245048 | OPTICAL RECORDING METHOD AND OPTICAL RECORDING APPARATUS - Disclosed is an optical recording method. The optical recording method includes emitting laser light from a mode-locked laser light source, modulating a pulse of the laser light during a time period when a recording mark is formed in a medium, and irradiating the medium with the laser light modulated. | 10-01-2009 |
20090245077 | Optical Recording Method and Optical Recording Apparatus - Disclosed is an optical recording method. The optical recording method includes irradiating an area where a recording mark is formed in a medium with a pulse train of laser light, and irradiating the area where the recording mark is formed with continuous-wave laser light that is continuously output. | 10-01-2009 |
20100027574 | OPTICAL INFORMATION RECORDING DEVICE, OPTICAL PICKUP, AND METHOD FOR EMITTING LASER LIGHT - An optical information recording device includes a semiconductor laser for emitting laser light, a light irradiation section for collecting the laser light and irradiating an optical information recording medium with the laser light, and a laser controller for supplying the semiconductor laser with a laser drive current wave in pulse form. The laser drive current wave has an oscillation current value that causes a relaxation oscillation of the semiconductor laser. | 02-04-2010 |
20100046338 | OPTICAL DISC APPARATUS, FOCUS POSITION CONTROL METHOD AND RECORDING MEDIUM - An optical disc apparatus can highly accurately record a hologram representing information on or reproduce such a hologram from an optical disc. When recording information on an optical disc | 02-25-2010 |
20100046345 | OPTICAL INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION RECORDNG APPARATUS, AND OPTICAL INFORMATION RECORDING METHOD - An optical information recording medium includes a recording layer in which a track is formed, the track having recording marks linearly arranged thereon. Each recording mark has a dimension corresponding to a reference mark length, which serves as a reference, in a track direction along which the track extends, the dimension being smaller than dimensions of the recording mark in two directions perpendicular to the track direction. | 02-25-2010 |
20100110858 | OPTICAL INFORMATION RECORDING METHOD, OPTICAL INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION REPRODUCING DEVICE, OPTICAL INFORMATION REPRODUCING METHOD AND OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE - The invention is able to enhance a recording speed. In the invention, a recording mark (RM) composed of a cavity is formed by vaporizing a two-photon absorbing material by a two-photon absorption reaction as an embodiment of a photoreaction against a recording light beam (L | 05-06-2010 |
20100182895 | OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium includes a recording layer in which a recording mark formed of a cavity is formed in accordance with a light for recording, and which contains therein a compound having a skeleton expressed by the general formula (1): | 07-22-2010 |
20100189948 | OPTICAL INFORMATION RECORDING MEDIUM, AND TWO-PHOTON ABSORBING MATERIAL - The invention allows two-photon absorption to occur in response to a short-wavelength light beam. The recording layer ( | 07-29-2010 |
20100322063 | OPTICAL INFORMATION REPRODUCING APPARATUS AND OPTICAL INFORMATION REPRODUCING METHOD - An optical information reproducing apparatus includes: an irradiation section irradiating a light beam onto an optical information recording medium, in which holes are formed along a virtual track on a recording medium, along the virtual track; a light receiving section receiving a reflected light beam when the light beam is reflected by the optical information recording medium and sequentially generating a light receiving signal corresponding to the light intensity; a detection section detecting a variation pattern appearing when a signal level of the light receiving signal changes according to the hole; and a code string generating section, when generating a code string corresponding to the signal level, generating a code corresponding to the one hole from the variation pattern if the variation pattern falls within a range and generating a code string, which includes a plurality of codes, from the variation pattern if the variation pattern exceeds the range. | 12-23-2010 |
20110262678 | OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium includes a recording layer, wherein the recording layer includes a thermoplastic resin and inorganic oxide particles dispersed in the thermoplastic resin. | 10-27-2011 |
20120099411 | OPTICAL INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION RECORDING APPARATUS, AND OPTICAL INFORMATION RECORDING METHOD - An optical information recording medium includes a recording layer in which a track is formed, the track having recording marks linearly arranged thereon. Each recording mark has a dimension corresponding to a reference mark length, which serves as a reference, in a track direction along which the track extends, the dimension being smaller than dimensions of the recording mark in two directions perpendicular to the track direction. | 04-26-2012 |