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US20100054102 Laser driving device and optical apparatus  
A laser driving device includes a storage unit that stores signal patterns for recording-waveform control representing level information of each divided driving signal to drive a laser device on a...
US20050207309 Optical data reading device and optical data writing device, and information detecting method and information detecting circuit used in the same reading and/or writing devices  
By shaping a waveform of a level of a push-pull (PP) signal that fluctuates in accordance with a high-frequency (HF) signal that indicates written data by comparing the level to space-side slice...
US20070025201 METHOD FOR DETERMINING A DRIVING FORCE TO DRIVE AN OPTICAL PICKUP HEAD  
A method for determining a driving force to drive an optical pickup head of an optical disc drive includes steps of inserting an optical storage media including absolute address marks into the...
US20050146999 Objective lens driving device enabling speed-up of optical disk drive  
In an objective lens driving device having a lens holder which is movable and holds an objective lens, coil devices are disposed around the objective lens and held by the lens holder. Around the...
US20080049572 Spherical aberration correcting device  
A spherical aberration correcting device includes liquid crystal, a first transparent electrode and a second transparent electrode. The first transparent electrode works as a common electrode. The...
US20080062839 OPTICAL DISC ANALYSIS SYSTEM INCLUDING RELATED METHODS FOR BIOLOGICAL AND MEDICAL IMAGING  
An optical disc system includes a photo detector circuit of an optical disc drive and a signal processing system. The photo detector circuit is configured to generate at least one...
US20050249064 Optical element, objective optical system, optical pick-up apparatus, and drive apparatus of optical disk  
An optical pick-up apparatus comprising: a first light source emitting a the first light flux; a second light source emitting a second light flux; a third light source emitting a third light flux;...
US20080159088 Tracking A Position In Relation To A Surface  
A tracking device is provided for tracking a position of the tracking device in relation to a surface. The tracking device has a first optical sensor to capture a primary image of the surface. A...
US20090168626 OPTICAL PICKUP DEVICE AND PHOTODETECTOR  
An optical pickup device includes: a first light-receiving element for receiving a main beam of a first light beam; second and third light-receiving elements for receiving sub-beams of the first...
US20150187378 PEG HEIGHT OF NEAR-FIELD TRANSDUCERS  
A method is provided for characterizing the peg region of a near-field transducer incorporated into a write head of a HAMR magnetic recorder. The method includes providing excitation radiation to...
US20150063087 PEG HEIGHT OF NEAR-FIELD TRANSDUCERS  
A method is provided for characterizing the peg region of a near-field transducer incorporated into a write head of a HAMR magnetic recorder. The method includes providing excitation radiation to...
US20050007902 Optical disk reproducing device  
An optical disk reproducing device provided with servo automatic adjustment means for automatically performing an adjustment of setting an operation criterion to a servo mechanism, and also...
US20060126447 Remote control system for an optical disc player and related method  
An apparatus that is configured to receive a first signal from a remote device, to convert the first signal into a second signal, and to transmit the second signal to an optical disc player. The...
US20100135135 SYSTEM OF SAMPLING INTERFACE FOR AN OPTICAL PICK-UP HEAD  
A system of sampling interface for an optical pick-up head comprises an optical pick-up head, a PMOS, a boost circuit, and a sample and hold circuit. The optical pick-up head outputs one of a...
US20090135699 OFFSET COMPENSATOR AND OPTICAL DISC DRIVE USING THE SAME  
The generation of a pseudo-lock is prevented in a JFB offset compensator whose use has been conventionally limited due to a tendency to generate the pseudo-lock, and performance degradation of a...
US20090080303 Storage Media Housing Device  
A storage media housing device includes a housing means (1) for housing storage media; a position detecting section (2) detecting a position of the housing means (1); a transfer means (3) for...
US20080074964 System and Method of Obective Lens Selection in a Multiple Lens Actuator  
The invention relates to a system comprising: a source for generating a light beam (B), an optical element (M) intended to receive said light beam (B), an actuator (AC) in which is mounted a...
US20060092775 Content receiving apparatus and method  
Technology is disclosed that allows a viewer to estimate the value of unknown content, and pay a fee relative to the estimated value. A cost corresponding to the value of each section is output...
US20070095806 Method of bonding optical component, and optical pickup  
A light source (2) and a connection base (1) are held with a predetermined gap, solder paste melted by the thermal energy of laser light is fed into the gap, and the light source (2) and the...
US20130088944 Heat-Assisted Magnetic Recording Head for Servo Writing  
An apparatus includes a write pole, a waveguide adjacent to the write pole, the waveguide having a truncated end, and a blocking layer positioned adjacent the truncated end and extending from one...
US20090168637 Arrangement and Method to Perform Scanning Readout of Ferroelectric Bit Charges  
An arrangement, a method and a system to read information stored in a layer of ferroelectric media. The arrangement includes a layer including a ferroelectric media having one or more...
US20100322061 OPTICAL PICKUP DEVICE  
There is provided a low-cost and reliable optical pickup device, wherein an objective lens is in contact with an adhesive at least one or more portions and fixed to the adhesive and also the...
US20060280055 Laser power control and device status monitoring for video/graphic applications  
Signals, such as the +5V signal, the HPD signal, and LOS output from DDC, CEC, or HDMI signals are dynamically monitored, whereby a stand-by mode is entered in the absence of signal activity in...
US20060181963 Wireless adaptor for content transfer  
Described herein are embodiments that wirelessly provide content from a content source to a content player. In one embodiment, there is provided a wireless adaptor that includes a wireless...
US20070291602 Optical disk drive and pickup device  
An optical disk drive includes focusing means, moving means for moving the focusing means in a direction perpendicular to a track direction, light detection means having a first light acceptance...
US20080175109 Phase shift grating for phase shift differential push-pull tracking  
The present invention relates to a phase shift grating for phase shift differential push-pull tracking, and to an apparatus for reading from and/or writing to optical recording media using such a...
US20050249054 Optical pickup and disc drive device  
An objective lens driving device is to be improved in sensitivity and reduced in size and thickness. To this end, an objective lens driving device includes a stationary block arranged on a...
US20090316553 TAPE CONDITION IN A TAPE DATA TRANSFER APPARATUS  
A tape data transfer apparatus operable to determine a tape damage condition of a tape received in the apparatus by determining a value representative of a tape pack size of the received tape and...
US20150085632 DETECTION AND REMEDIATION OF HEAD CONTAMINATION  
A heat generating component of a slider is energized at a predetermined frequency. The heat generating component changes a spacing between a medium and the slider. A temperature response proximate...
US20090180369 Method for Controlling the Quality of Storage Media  
The present invention relates to a method for controlling the quality of storage media, and more specifically to a method for determining if the quality of a storage medium decreases. A method...
US20090245063 Device for Automatic Back-up, Organization and Operation using Voice Recognition Search Engine for Computer File Media  
A digital memory organizer including a digital memory with a connection to a computer and designated software associated with the digital memory to carry out functions as automatic copying digital...
US20060098553 Beam splitter and optical pickup device  
A beam splitter, comprises: a light source light entering side prism to which a light from a light source enters; a reflected light entering side prism to which a reflected light from an...
US20050058044 Optical disk modified for speed and orientation tracking  
An optical disk includes a label region having writable material. Disk speed features are located in a manner which allows them to be readable when writing to the label region.
US20080192608 Velocity Control of Holographic Media  
A holographic storage device for reading media includes a first, holographic layer and a second, stamped layer having a plurality of land and grooved tracks. A sled is adapted to move radially...
US20120170439 Objective Lens Element  
An objective lens element having excellent compatibility with optical discs having different base material thicknesses is provided. The objective lens element has optically functional surfaces on...
US20050078584 System and method for error correction in optical disk system  
A system for error correction that comprises a servo device receiving data sent from an optical pickup head and determining whether the data include a first error, a read channel determining...
US20090185463 DIFFRACTION GRATING, OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS  
A pickup device splits and detects a light beam reflected from a disc with the use of a grating. The grating has first to six areas, wherein the first area and the second area, the third area and...
US20090103416 LAYOUT METHOD FOR MULTIPLEXED HOLOGRAMS  
Methods are disclosed for determining the layout of cure sites/cure spots and/or stack positions on the recordable section of a holographic storage medium. Also disclosed are methods for carrying...
US20140022883 DISC IDENTIFICATION  
The described implementations relate to DVD identification. One method accesses media content from a DVD and identifies a format of the media content. The method also determines a unique...
US20050270918 OPTICAL DISC DRIVE CAPABLE OF GENERATING DIGITAL SERVO CONTROL SIGNALS AND METHOD THEREOF  
An optical disc drive and related method for accessing an optical disc. The optical disc drive includes a pickup module, a digital pre-amp module, a servo control module, and an actuator module....
US20060158976 Magneto-optical disc device and method for writing data on magneto-optical disc  
A magneto-optical disc device (1) writes data, for each sector, onto a magneto-optical disc (2) using an optical head portion (21) which outputs light onto the magneto-optical disc, at which time...
US20080273429 CASSETTE ADAPTER FOR A VEHCILE  
A audio player adapter for a vehicle. The audio player adapter is adapted to be connected to the vehicle via the cassette playing portion of the vehicle. The audio player adapter is capable of...
US20090238055 SYSTEM AND METHOD FOR JUDGING PRESENCE/ABSENCE OF LOADING SPACES  
Disclosed herewith is a library apparatus having plural loading cells, each of which can load at least two articles and using a pushing device that pushes the articles into the loading cell from...
US20060158991 Reflective optical element and optical pickup including the same  
A rising mirror is constructed by forming on a glass substrate a first region and a second region having different reflection properties. The first region is formed of, for example, an...
US20090147654 Sync mark correction for holographic data pages  
The presented invention relates to a method for reading data from a data page from an optical data storage medium, e.g. a holographic storage medium and to an apparatus for performing this method....
US20090262622 Integrated Standalone Optical Disc Duplication And Labeling System Capable Of Recording Information On The Data Side And Printing Images By Direct Laser Labeling On The Opposite Side Optical Disc  
Present invention provides a one-stop simplified mechanism of optical disc duplication and labeling, all done within the same integrated standalone system, saving the trouble of multi-step disc...
US20050041542 Optical display device  
There is provided an optical disc device comprising a step number calculation means (110) for calculating the number of steps of a motor (106) on the basis of the target number of tracks required...
US20070121452 Test disc and drive verification method  
Data of capacity of about one-severalth of full capacity of a layer 0 and a layer 1 is recorded in a test disk in a range from the layer 0 to the layer 1, and middle areas of the layer 0 and the...
US20050007896 Multiple compact disk storage, recording and playback system  
A CD changer consisting of a disk storage unit, two standard disk drives with extendable access trays, and a disk transport mechanism for moving individual disks between either access tray and a...
US20090154307 SERVO PARAMETER DETECTION METHOD AND OPTICAL PICKUP DEVICE USING THE SAME  
An optical pickup inspection device 3 sends to an actuator drive circuit 16 a command for changing defocus offset amount to set defocus offset amounts, and calculates jitter values for each of the...