| Patent application number | Description | Published |
|---|
| 20090245037 | Focus Servo Method, Optical Reproducing Method, and Optical Reproducing Apparatus - A focus servo method includes: causing light to enter an objective lens at an eccentric position; irradiating light onto recording marks of an optical recording medium in an oblique direction with respect to a thickness direction of the optical recording medium; detecting light reflected by the recording marks as a reflection of the light irradiated onto the recording marks; and controlling a position of the objective lens based on the detected light. | 10-01-2009 |
| 20090245043 | OPTICAL RECORDING/REPRODUCING APPARATUS AND OPTICAL RECORDING/REPRODUCING METHOD - Disclosed is an optical recording/reproducing apparatus. The optical recording/reproducing apparatus includes a laser light source capable of emitting pulsed laser light in a mode-locked state in which light beams having different wavelengths are synchronized and the pulsed laser light is oscillated, means for controlling the laser light source to be changed from a state of emitting the laser light in the mode-locked state to a state of emitting continuous-wave laser light, and means for irradiating a recording medium with one of the laser light in the mode-locked state and the continuous-wave laser light. | 10-01-2009 |
| 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 |
| 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 |
| 20100118687 | OPTICAL INFORMATION RECORDING APPARATUS, OPTICAL INFORMATION RECORDING METHOD, OPTICAL INFORMATION REPRODUCING APPARATUS, OPTICAL INFORMATION REPRODUCING METHOD, AND OPTICAL INFORMATION RECORDING MEDIUM - The present invention can record sub-data. An optical disk drive ( | 05-13-2010 |
| 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 |
