SONY DISC & DIGITAL SOLUTIONS INC. Patent applications |
Patent application number | Title | Published |
20150220708 | INFORMATION SERVICE METHOD, INFORMATION SERVICE UNIT, RECORDING OR REPRODUCING CONTROLLING METHOD, AND RECORDING AND/OR REPRODUCING UNIT - Unique identification information is prerecorded on a disc. The identification information is registered to a server along with user's license when he or she buys the disc. When an terminal unit reproduces data from the disc, identification information is read and transmitted to the server through the Internet. The server creates a key that controls to reproduce data from the disc in accordance with the license identified by the identification information and transmits the key to the terminal unit along with the user's license information for the disc. The terminal unit controls to reproduce contents of the disc in accordance with key and license information transmitted from the server. The license for each disc is managed in accordance with the identification information. Thus, different services can be provided for individual discs. | 08-06-2015 |
20110114473 | MAGNETRON SPUTTERING APPARATUS AND MAGNETRON SPUTTERING METHOD - A magnetron sputtering apparatus of the invention includes: a sputtering chamber in which a target can be opposed to an object to be subjected to film formation; a gas introduction port facing the sputtering chamber; a magnet provided outside the sputtering chamber and opposite to the target and being rotatable about a rotation center which is eccentric with respect to center of the magnet; a sensor configured to detect a circumferential position of the magnet in a plane of rotation of the magnet; and a controller configured to start voltage application to the target to cause electrical discharge in the sputtering chamber on the basis of the circumferential position of the rotating magnet and gas pressure distribution in the sputtering chamber. | 05-19-2011 |
20100290098 | HOLOGRAM JUDGING APPARATUS - A hologram judging apparatus includes a housing and first and second light sources attached to the housing and emitting reconstruction illumination light. In the hologram judging apparatus, the first and second light sources each include a wavelength component with a wavelength λ meeting the reconstruction condition of a Lippmann hologram, and any one of the first and second light sources is a light source making the reconstruction illumination light enter a hologram at an angle θref which is identical to another angle θref with respect to the normal in a plane of incidence, the other angle θref meeting the reconstruction condition of a Lippmann method. | 11-18-2010 |
20100265554 | HOLOGRAM REPRODUCING AND IMAGING APPARATUS, AND HOLOGRAM REPRODUCING AND IMAGING METHOD - A hologram reproducing and imaging apparatus includes a reference light source configured to be arranged near a hologram recording material on which a hologram is recorded and has an arrangement of a plurality of light sources, a reference light source drive section configured to drive the plurality of light sources in a time-division manner, an imaging sensor configured to capture an image of a reproduction area irradiated with reference light from the reference light source and photoelectrically convert the image, and an image processing section configured to process an imaging signal from the imaging sensor. Partial captured images are obtained by enabling the imaging signal of the area irradiated when the plurality of light sources are turned on, and the partial captured images are combined to be a reproduction image by the image processing section. | 10-21-2010 |
20100208314 | HOLOGRAM RECORDING MEDIUM - Disclosed herein is a hologram recording medium, wherein in a volume hologram, the hologram recording medium is covered with a partially patterned optical functional film on the side closer to the viewer than a hologram recording layer without the medium of air, and wherein the hologram recording medium maintains its appearance approximately unchanged irrespective of the presence or absence of the optical functional film. | 08-19-2010 |
20100180125 | INFORMATION SERVICE METHOD, INFORMATION SERVICE UNIT, RECORDING OR REPRODUCING CONTROLLING METHOD, AND RECORDING AND/OR REPRODUCING UNIT - Unique identification information is prerecorded on a disc. The identification information is registered to a server along with user's license when he or she buys the disc. When an terminal unit reproduces data from the disc, identification information is read and transmitted to the server through the Internet. The server creates a key that controls to reproduce data from the disc in accordance with the license identified by the identification information and transmits the key to the terminal unit along with the user's license information for the disc. The terminal unit controls to reproduce contents of the disc in accordance with key and license information transmitted from the server. The license for each disc is managed in accordance with the identification information. Thus, different services can be provided for individual discs. | 07-15-2010 |
20100150189 | LASER CONTROL METHOD AND LASER CONTROL CIRCUIT - A laser control method includes the steps of: using a laser control circuit which includes a constant current circuit that maintains a constant current flowing through a semiconductor laser element, and which includes an adder and a multiplier connected to a stage preceding the constant current circuit, and using detection means for calibration for detecting an applied laser output; calculating, on the basis of a detection signal output from the detection means, a reference bias value and a reference gain value for obtaining a specified laser output with respect to a specified input to the multiplier; inputting the reference bias value and the reference gain value to the adder and the multiplier, respectively; and controlling the applied laser output from the semiconductor laser element by performing calibration. | 06-17-2010 |
20100143636 | OPTICAL INFORMATION RECORDING MEDIUM - There is provided a read-only optical information recording medium including a reflective film which has high reflectivity, and is superior in environment resistance at the time of being kept in a high-temperature, high humidity environment as well as light resistance at the time of being kept in a high-intensity light irradiation environment and repeating reproduction durability against a repeating reproduction test. In a read-only optical information recording medium in which at least one reflective film and at least one light transmissive layer are laminated in order on a substrate, the reflective film is made of a Ag-base alloy including 0.01 to 1.0 at % of Bi and 0.1 to 13.0 at % of Cu. | 06-10-2010 |
20100134892 | OPTICAL DEVICE, METHOD FOR PRODUCING MASTER FOR USE IN PRODUCING OPTICAL DEVICE, AND PHOTOELECTRIC CONVERSION APPARATUS - In an optical device, a number of structures having higher portions or lower portions are arranged at a fine pitch equal to or shorter than a wavelength of visible light on a surface of a base. Each of the structures is arranged to form a plurality of arc track rows on the surface of the base, and to form a quasi-hexagonal lattice pattern, and the structure has an elliptical cone or truncated elliptical cone shape having a major axis in a circumferential direction of the arc tracks. | 06-03-2010 |
20100119763 | PRODUCTION METHOD FOR OPTICAL DISC MASTER, OPTICAL DISC MASTER, STAMPER, AND OPTICAL DISC - A production method for an optical disc master includes the steps of: preparing a substrate; forming an intermediate layer having a predetermined thickness on the substrate; forming an inorganic resist layer having a thickness on the intermediate layer, a ratio of the thickness of the intermediate layer to the thickness of the inorganic resist layer being in a range between 0.8:1 and 1.5:1; irradiating the inorganic resist layer with a laser beam to selectively expose the inorganic resist layer; and developing the selectively exposed inorganic resist layer. | 05-13-2010 |
20090279875 | INFORMATION PROCESSING APPARATUS, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes a playback controller and a storage unit. The playback controller reads per-disc or per-title identification information in the form of a media ID recorded onto a disc, and then executes content playback selection processing or determines a playback processing mode according to bit information included in the media ID. The storage unit stores a program that causes the processing of the playback controller to be executed. By thus using the media ID, provided services, such as the content authorized for playback, can be modified. | 11-12-2009 |
20090129255 | RECORDING METHOD, MASTER FOR OPTICAL DISK, AND OPTICAL RECORDING MEDIUM - A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter(track pitch/exposure beam diameter=0.333 to 0.833). | 05-21-2009 |
20090122676 | EVALUATION APPARATUS, EVALUATION METHOD, AND PROGRAM - An evaluation apparatus for obtaining an evaluation value of a signal read from an optical recording medium includes a reading device reading a signal recorded on the optical recording medium, an edge position detection device detecting edge positions of the read signal acquired by the reading device, a frequency distribution table generation device generating a frequency distribution table of the edge positions on the basis of accumulation result of information of the edge positions detected by the edge position detection device, and a first calculation device calculating a T degree value represented as | 05-14-2009 |
20090057141 | AG-BASED ALLOY SPUTTERING TARGET - The invention relates to an Ag-based alloy sputtering target including at least one element selected from the group consisting of Ti, V, W, Nb, Zr, Ta, Cr, Mo, Mn, Fe, Co, Ni, Cu, Al, and Si in a total amount of 1 to 15% by weight, in which the Ag-based alloy sputtering target has an arithmetic mean roughness (Ra) of 2 μm or more and a maximum height (Rz) of 20 μm or more at a sputtering surface thereof. | 03-05-2009 |
20090041933 | RECORDING DRIVE WAVEFORM ADJUSTING METHOD FOR MANUFACTURING MASTER DISC, MASTER DISC MANUFACTURING METHOD, MASTER DISC MANUFACTURING APPARATUS, AND MASTER DISC - A recording drive waveform adjusting method for manufacturing a master disc is provided. The method includes forming an exposed area in an inorganic resist layer for test exposure by irradiating a master disc having the inorganic resist layer with laser light of a recording power based on a recording drive waveform according to a test recording signal. The method also includes obtaining reflected-light information by irradiating the exposed area formed in the test exposure with laser light of a reproducing power, determining whether the recording drive waveform is appropriate by using the reflected-light information, and correcting the recording drive waveform if the recording drive waveform is determined to be inappropriate in the determination. | 02-12-2009 |
20090025630 | VACUUM TRANSFER APPARATUS AND METHOD - A vacuum transfer apparatus including an auxiliary vacuum chamber and a main vacuum chamber is used for transferring an uneven pattern to a disk substrate with a stamper. The auxiliary vacuum chamber is vacuumized or opened to air because the disk substrate is conveyed to and from the vacuum transfer apparatus through the auxiliary vacuum chamber. The disk substrate conveyed to the auxiliary vacuum chamber and then to the main vacuum chamber after the auxiliary vacuum chamber is vacuumized. In the main vacuum chamber, transferring of the uneven pattern with the stamper, curing of UV-curable resin, and removal of the stamper are performed to provide a disk substrate with the uneven pattern. Then, the disk substrate is conveyed from the vacuum transfer apparatus through the auxiliary vacuum chamber. An operation at the auxiliary-vacuum-chamber side and an operation at the main-vacuum-chamber side are performed in parallel. | 01-29-2009 |
20090025021 | OPTICAL DISC RECORDING AND REPRODUCING APPARATUS, OPTICAL DISC RECORDING AND REPRODUCING METHOD, AND OPTICAL DISC MANUFACTURING METHOD - The BCA recording and reproducing apparatus performs recording of data onto an optical disc placed on a recording turntable, reproduction of data recorded on an optical disc placed on a reproducing turntable and ejection of an optical disc placed on an exchanging table and placement of a new optical disc on the exchanging table in parallel. A processing time is thereby shortened compared with the case of performing data recording, reproduction and exchange in series. | 01-22-2009 |
20080310294 | Recording method, master for optical disk, and optical recording medium - A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833). | 12-18-2008 |
20080310265 | METHOD OF RECORDING DATA, METHOD OF MANUFACTURING READ-ONLY OPTICAL DISC, AND READ-ONLY OPTICAL DISC - A method of recording data includes: a first recording step of recording data in a condition that, within a certain error correction block in a data format in which error correction blocks with n rows and m columns including at least main data, error detection code, and error correction parity are formed, an allocated location of additional supplementary information is set in a location in the same column as an allocated location of the error detection code, and an additional recording area is formed for recording additional information containing the additional supplementary information and the error detection code and the error correction parity necessary to be recorded according to the recording of the additional supplementary information; and a second recording step of recording the additional information in the additional recording area after the data recording at the first step is executed. | 12-18-2008 |
20080265149 | Optical Device, Method for Producing Master for Use in Producing Optical Device, and Photoelectric Conversion Apparatus - In an optical device, a number of structures having higher portions or lower portions are arranged at a fine pitch equal to or shorter than a wavelength of visible light on a surface of a base. Each of the structures is arranged to form a plurality of arc track rows on the surface of the base, and to form a quasi-hexagonal lattice pattern, and the structure has an elliptical cone or truncated elliptical cone shape having a major axis in a circumferential direction of the arc tracks. | 10-30-2008 |