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US20060077844 Voice recording and playing equipment  
The present invention is aimed at changing a playing speed with small operation times without changing the voice pitch. The solution is as below. A block composition unit 1 receives a voice signal...
US20050128891 Method for controlling the disc ejecting operation in an optical disc drive  
This invention discloses a method for controlling the disc ejecting operation in an optical disc drive. A pulling mechanism in an optical disc drive is moved to contact the disc after receiving an...
US20130021690 Systems and Methods for User Data Based Fly Height Calculation  
Various embodiments of the present invention provide systems and methods for calculating and/or modifying fly height. For example, a circuit for calculating fly height is disclosed that includes:...
US20080186811 Device And Method For Controlling Disc Runout In An Optical Disc Drive System  
A device for controlling disc runout in an optical disc drive system (10) is described, comprising a rotatable support (12) having a rotation axis (16), the support (12) being arranged to hold a...
US20140098656 OPTICAL ELEMENT  
An optical element has at least one surface divided into a plurality of regions and includes: a first region configured to converge light with a wavelength λ1 onto a storage surface of a first...
US20070286040 Safety ensuring device and disc apparatus utilizing the same  
A safety ensuring device for a disc apparatus, which includes a lid and a spindle motor for rotating a disc, includes a first switch operable by the lid, a first controller electrically coupled to...
US20050018555 Disc-shaped optical recording medium and reproduction limit method thereof  
A disk type optical recording medium that can limit the reproduction by a disk drive connected to a computer without drastically changing the specifications of recorded information on the medium...
US20070286044 OPTICAL DISC READ/WRITE APPARATUS AND ALTERNATIVE WRITE PROCESSING METHOD  
When data is to be written on an optical disc in the unit of a sector, an attempt is made to read a block A to which a write sector belongs for the purpose of judging whether the block can be...
US20080144476 OPTICAL PICKUP APPARATUS AND PHOTODETECTOR  
A first photodiode for BD receives a laser light beam separated from a laser light beam emitted from a first semiconductor laser, detects laser power of the first semiconductor laser, and outputs...
US20080049568 Aberration correction element, optical pickup and optical disc apparatus  
An aberration correction element includes a support substrate, a plurality of piezoelectric elements disposed on the support substrate, each of which is made up of a piezoelectric member and...
US20070280069 METHOD OF GAIN CONTROL AND CONTROLLER THEREOF  
The invention provides an automatic gain controller processing an input signal for wobble detection circuit. An exemplary embodiment of the automatic gain controller comprises an envelope...
US20090175148 Holographic system, in particular for holographic data storage  
In order, in the case of a holographic system, in particular for holographic data storage, comprising a radiation source for emission of a radiation an objective lens, a signal evaluation means, a...
US20060002270 System for applying combined laser light with extended output-power range  
In a system for irradiating a recording medium with combined laser light which is generated by combining laser beams emitted from laser-light sources: a fraction of the laser-light sources are...
US20060233091 Storage device having storage cells having a size less than a write light wavelength  
A storage device comprises a substrate having a recording layer, the recording layer having plural regions associated with respective plural storage cells. A light source generates write light...
US20100027397 TRACKING BY CROSS CORRELATING CENTRAL APERTURES OF MULTIPLE BEAMS  
The present invention provides a method and apparatus for robust tracking at narrow track-pitches on optical discs, enabling higher densities on Blu-ray Discs (5) as well as near-field discs....
US20050117493 Optical tape, optical tape cartridge, optical tape drive, and method for recording data on optical tape  
Disclosed is an optical tape which contributes to a high recording density, and which achieves an enhanced flexibility in a width of a data track and a data format. The optical tape includes servo...
US20060077818 Optical disc processor  
A controller in an optical disc processor serves as a visual information recording unit for recording visible information by forming visual information-display pits to be closely aggregated...
US20090040889 Wobble signal demodulation method and wobble signal demodulator  
Pseudo synchronization due to crosstalk is detected with a small circuit scale in decoding address information from an MSK-modulated wobble signal. An MSK mark detection unit detects MSK marks...
US20080049581 OPTICAL PICK-UP  
An optical pick-up including a first objective lens having a numerical aperture (NA) suitable for a BD, a second objective lens having an NA suitable for an HD-DVD, a light source to emit light...
US20140056120 Replica Disk for Data Storage  
Data storage replica disks having a surface relief pattern with replica lands and replica grooves are provided.
US20130121128 REPLICA DISK FOR DATA STORAGE  
Data storage replica disks having a surface relief pattern with replica lands and replica grooves are provided.
US20080186837 INFORMATION STORAGE MEDIUM USING NANOCRYSTAL PARTICLES, METHOD OF MANUFACTURING THE INFORMATION STORAGE MEDIUM, AND INFORMATION STORAGE APPARATUS INCLUDING THE INFORMATION STORAGE MEDIUM  
Provided is an information storage medium using nanocrystal particles, a method of manufacturing the information storage medium, and an information storage apparatus including the information...
US20080205232 Vehicle sound enhancing system and method of producing  
Methods, systems and storage media are disclosed for enhancing the sounds of any vehicle, motorized conveyance, vehicle simulator, video game or vehicle like device by feeding the output of a...
US20060158985 DVD and a file copy method thereof  
A Digital Versatile Disc (DVD) and a file copy method thereof are disclosed. Copy control information data disposed only with addresses of encoded data is read out and is inserted into contents....
US20100061221 SINGLE-SIDED PRE-RECORDED DUAL-LAYER DVD DISC FUNCTIONING AS A DUAL-SIDED PRE-RECORDED DVD  
An optical disc structure for playback by a read-out device is described. The optical disc structure includes a first layer with first content recorded thereon. A second layer is coupled to the...
US20150206545 SURFACE DIFFUSION INHIBITOR FOR HAMR NFT  
Embodiments of the present invention generally relate to a HAMR head including a near field transducer having an antenna, a surface diffusion inhibitor layer disposed on a portion of the antenna...
US20060072422 Scanning device including an optical filter  
An optical scanning device (1; 100) for scanning an information layer (4) of an optical record carrier (2; 102). The device comprises a radiation source (11; 111) for generating a radiation beam...
US20090147632 OPTICAL DISC DRIVE APPARATUS  
In an optical disc drive apparatus, when a start time of a tracking pull-in operation is adjusted according to the eccentricity amount of the optical disc, a suitable starting point of the...
US20050105456 Double-sided optical disc  
A double-sided optical disc, is formed with data tracks on each layer. The tracks on one side follow one spiral while the tracks on the other side follow a second spiral, the two spirals being...
US20140347967 TESTING DEVICE AND TESTING METHOD FOR TESTING PERFORMANCE OF DISC PLAYER  
A testing device for testing performance parameters of a disc player which includes a display, and a storage. The storage at least one sector table associated with a disc in the disc player, each...
US20070230311 DIFFRACTION ELEMENT, OBJECTIVE LENS UNIT, OPTICAL PICKUP AND OPTICAL DISC APPARATUS  
A diffraction element for diffracting a particular wavelength of incident optical beam includes: a base section made from a first resin and provided with a predetermined diffraction pattern; and a...
US20060023610 Optical pickup device and optical disk device  
An optical pickup device has first emission unit emits first laser beam, second emission unit emits second laser beam whose wavelength is different from that of first laser beam, to same optical...
US20050058029 Method for controlling the tracking on action of an optical disk drive  
A method of controlling the tracking action of an optical disk drive is disclosed. According to the method, the number of sine waves in the tracking error signals is calculated while the disk...
US20110102746 HALF-WAVE PLATE, OPTICAL PICKUP DEVICE, POLARIZATION CONVERSION ELEMENT, AND PROJECTION DISPLAY DEVICE  
A half-wave plate includes a single crystal plate made of an inorganic material having a birefringent property and rotatory power, wherein a polarization plane of linearly polarized light entering...
US20090196140 OPTICAL DISC, OPTICAL DISC MANUFACTURING METHOD, OPTICAL DISC RECORDING DEVICE AND OPTICAL DISC REPRODUCTION DEVICE  
Sub-information necessary to reproduce main information is recorded without deteriorating the reading accuracy of the main information, so that the illegal duplication of an optical disc is...
US20060280110 Sheet for manufacturing optical disk and optical disk  
Optical disc manufacturing sheet 1 comprising protective sheet 12 and curable adhesive layer 11 with a pre-curing storage elastic modulus of 103 to 106 Pa and a post-curing storage elastic modulus...
US20090285069 FILE PROTECTION METHOD USED IN SOLID STATE DISC ARRAY SYSTEM  
A file protection method is used for preventing files stored in a solid state disc array system from being reproduced unauthorizedly. After a file is produced completely, it is stored in a solid...
US20070064557 Distributed copying method and system  
A method for copying data onto a plurality of hard drive partitions first determines the total size of the source files, which may be on an optical disc or other device. The available space on one...
US20090252018 HOLOGRAM LENS MANUFACTURING APPARATUS, HOLOGRAM LENS, METHOD OF MANUFACTURING HOLOGRAM LENS, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCING APPARATUS  
A hologram lens manufacturing apparatus includes: a separation unit that separates a light beam emitted from a light source into a reference light beam and an irradiation light beam; an...
US20050063285 Optical disc drive and optical pickup  
An apparatus for reading and/or writing data from/on a medium with a light beam includes: a light source for generating the light beam; an objective lens for focusing the beam onto the medium; a...
US20090190449 OPTICAL HEAD TRANSFER DEVICE, INTEGRATED CIRCUIT FOR OPTICAL HEAD TRANSFER DEVICE, FOCUSING LENS DRIVING DEVICE, AND INTEGRATED CIRCUIT FOR FOCUSING LENS DRIVING DEVICE  
When transferring an optical head in a radial direction of an optical disc, the optical head is initially transferred with a speed profile of a larger acceleration, and when abnormality is...
US20060067172 Sound effects method for masking delay in a digital audio player  
The present invention is a method for enhancing playback of digital audio data by playing sound effects stored in a digital audio player's memory. The sound effects are preferably loaded into a...
US20100302923 DISC STARTUP TIME OF AN OPTICAL DRIVE  
A method of loading an optical record carrier into an optical drive is disclosed. The method comprises using a subset of a set of initial startup procedures for subsequent startups, the set of...
US20080008070 Equalization Apparatus and Method Based on Audiogram  
Disclosed is an equalization apparatus and method based on audiogram. The equalization method includes the steps of a) outputting a reference sound having reference frequency and intensity for...
US20050174897 Ultraslim slot-in type drive device  
In the present invention, a top link plate is separated from a main body such that when a recording medium is inserted, the top link plate is in an ascent state to prevent the recording medium...
US20070014205 Objective lens holding device and usage thereof  
The present invention relates to an objective lens holding unit which allows for accurate information reading and writing. In order to make it possible for a read/write device including an...
US20080031102 Method for maintaining the phase difference of a positioning mirror as a constant with respect to a high speed resonant mirror to generate high quality images  
System and method for synchronizing the low speed mirror movement of a mirror display system with incoming frame or video signals, and synchronizing buffered lines of video data to the...
US20070263523 Objective lens optical system and optical pickup optical system  
The present invention aims at focusing a light beam on each of a plurality of kinds of optical recording media having different thicknesses of transparent substrates with a suitable wave-optic...
US20080159111 Optical Pickup Device  
An optical pickup apparatus includes an optical pickup, and a turntable for holding an optical recording medium is placed. A protective cover is arranged between the optical recording medium...
US20080068974 OBJECTIVE LENS DRIVE APPARATUS FOR USE IN OPTICAL PICKUP  
An objective lens drive apparatus for use in an optical pickup includes a magnetic circuit including a magnet having at least three poles in a single side surface of the magnet, and a coil unit...