Matches 1 - 50 out of 154 1 2 3 4 >


Match Document Document Title
US20070291598 Servo Branch of Optical Disc Drive Comprising a Switchable Diaphragm and a Device for Beam Deflection, and Methods for Measuring Beam Lanking and Spherical Aberration  
A switchable diaphragm (9) and a device for beam deflection (10) are placed in the servo branch of an optical drive, in a path of light beams of different diffraction orders. This permits...
US20090003147 Apparatus comprising a pickup providing three beams for reading data from or writing data to an optical storage medium, and respective optical storage medium  
The apparatus comprises a pickup with a laser, a detector unit and an objective lens for reading data from or writing data to a Super-RENS optical storage medium having a track pitch below the...
US20060007835 Optical head device, method of manufacturing the same, and optical information recording and/or playback apparatus  
In order to correct specific aberration that occurs within an optical system, a plurality of aberration correction optical elements (4) with differing amounts and/or signs of aberration correction...
US20110002202 METHOD FOR CONTROLLING FOCUS ON LABEL SIDE  
A method for controlling focus on a label side of a light-scribe disc divides the label side into several zones, finds the maximum SBAD and the corresponding focus volt and spoke during focusing...
US20060062098 Optical pickup spherical aberration compensating method, optical pickup sherical aberration focus offset compensating method, and optical pickup device  
An optical pickup (20) projects a read beam onto an optical disc (40) as an optical storage medium which is driven to rotate by a spindle motor (30) and receives its reflection. A laser beam from...
US20070217303 Seatbelt lens control during rough seek  
An apparatus comprising a lens, a stepper motor and a tracking error controller. The lens may be positioned in a sled housing. The stepper motor may be configured to (i) move the sled housing in...
US20070030771 Method for automatically correcting an operation type of a disk drive  
A method for automatically correcting an operation type of a disk drive sets a number of times of normal track seeking of the disk drive as a standard. When executing track seeking commands, the...
US20110063956 OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS  
An optical pickup device includes a polarization diffraction grating to diverge an optical beam reflected from an optical disc and an optical detector to receive the optical beam diverged by the...
US20050232095 Optical pickup device  
A grounded pickup body 40 and a flexible-printed circuit board (FPC) are provided 10. On the reverse side of the FPC 10, a plurality of protruding lands 30 is connected to a ground pattern. The...
US20060072388 Pivoting optical device  
Pivoting optical device comprising a first part (15) and a second part (17) with optical means which is pivotally movable relative to the first part about a first pivot axis (19), said optical...
US20060120226 Optical pick-up device and optical disk device  
An optical pick-up device for carrying out at least one of recording and reproduction of information for an optical disk, comprises a laser beam source emitting a laser beam; a laser beam source...
US20060087929 Optical disk drive using one dimensional scanning  
A system for optical scanning along one line with fast random access and high optical resolution, composed of: a plurality of first lenslets (240) constructed for use with a selected media format...
US20060028960 Optical device for monitor and optical pickup apparatus  
A monitor optical device has a first region and a second region. The first region transmits part of light beam emitted from a light source to introduce the transmitted light beam to a monitor...
US20080074962 OPTICAL PICKUP DEVICE  
An optical pickup device 50 comprising a laser diode 1, a photo detector 2, a housing 3 having an optical system for guiding light from the laser diode 1 to an optical disk and guiding light...
US20080068938 COIL-MANUFACTURING METHOD AND OBJECTIVE-LENS DRIVING APPARATUS  
Of the two coil units 2-1 and 2-2 constituting an upper-stage coil unit, the coil unit 2-1 is passed through the winding of a coil unit 1-2 that constitutes a lower-stage coil unit, together with...
US20050254358 Heat radiating structure of a digital camera  
A heat radiating structure of a digital camera includes an optical system holder which holds an image-forming optical system; an image pickup device supported by the optical system holder; an...
US20080260820 Oral dosage formulations of protease-resistant polypeptides  
Oral dosage formulations of the protease-resistant therapeutic polypeptides are provided. The dosage formulations for administration per dosage per day or per week are higher than the subcutaneous...
US20060262677 OPTICAL DISC DRIVE WITH MULTIPLE DISC CAPABILITY  
An optical disc drive includes a housing configured for being installed within or coupled to the computer, either internally or externally. The optical disc drive further includes a plurality of...
US20060104169 Optical disk drive, information processing apparatus and control method of optical disk drive  
An optical disk drive includes a pickup main body that radiates a laser beam to a surface or a region of an optical disk, where no track information is present, thereby recording and/or...
US20060262673 Calibration of fine actuator of optical drive  
A known current is applied to the fine actuator for an optical mechanism of an optical drive. The distance that the optical mechanism radially travels in relation to a data side of an optical...
US20070297296 Optical disk apparatus  
An optical disk apparatus, suitable for adjusting fluctuation of a light emitted from an optical pickup in the direction thereof, by means of a tilt adjusting mechanism, irrespective of...
US20100008195 Optical Scanning Device and Method for Scanning  
An optical scanning device is adapted for scanning a record carrier having an outer face. The optical scanning device comprises a radiation source for generating a radiation beam, and an objective...
US20090245036 SERVO CONTROL DEVICE, SERVO CONTROL METHOD, AND SERVO CONTROL PROGRAM  
A servo control device that is capable of optimizing gain that is used in servo control and stabilizing the servo control even when the gain changes due to change in the status of overrecording...
US20120127841 PICKUP DEVICE AND OPTICAL DISC DRIVE ADOPTING THE SAME  
Provided are a single beam optical pickup device and a disc drive including the optical pickup device. The optical pickup device includes a light controlling device that prevents or limits stray...
US20110249541 OPTICAL DISC UNIT AND SERVO CONTROL METHOD FOR ACTUATOR THEREOF  
In servo control of actuators of an optical disc unit, a gain margin is secured by measuring a mean current or mean voltage applied to each of a focus actuator and a tracking actuator, estimating...
US20090196131 SYSTEM AND METHOD FOR PRINTING VISIBLE IMAGE ONTO OPTICAL DISC THROUGH TUNING DRIVING SIGNAL OF OPTICAL PICK-UP UNIT  
A system and method for printing a visible image onto an optical disc through tuning a driving signal of an optical pick-up unit are disclosed. The system includes a driving circuit, coupled to...
US20060039249 Systems and methods for reading optical-card data  
Systems and methods are provided for reading data encoded on an optical card as a series of binary pits formed within optical-card tracks separated by an average optical-card track pitch. A...
US20080316875 Optical Disc Apparatus for Accessing a Plurality of Optical Discs and Operating Method thereof  
The present invention discloses an optical disc apparatus. The optical disc apparatus includes a rotation module for rotating a plurality of optical discs; a plurality of holding plates, which at...
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...
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...
US20060023594 Evaluation disc  
An evaluation disc for use in evaluating a pickup head of an optical disc device, including: an inner circular region: an intermediate circular region; and an outer circular region; wherein the...
US20060158970 Method for controlling a dynamic system as well as a device suitable for carrying out such a method  
A system includes two guides that extend parallel to each other and a beam that extends transverse to the guides. The beam is movable over the guides, with a slide being movable over the beam. In...
US20090279395 OPTICAL DISK DRIVES AND METHOD FOR CONTROLLING TRACK-SEEKING FOR OPTICAL DISK DRIVES  
The invention provides an optical disk drive. The optical disk drive comprises a pickup head, a seek control device, a lens vision characteristic decoder, and an anti lens shift device. The pickup...
US20050276204 Objective lens drive unit in an optical head  
An objective lens drive unit in an optical head includes a lens holder mounting thereon an objective lens, a sheet coil unit including a focusing coil and a tracking coil, and a pair of liquid...
US20080094947 Optical Disc Device for Recording and Reproducing  
An optical scanning device for scanning an information carrier comprising tracks with a track pitch q, the closest track to the center of the information carrier having a radius r. The optical...
US20080225655 METHOD FOR PRE-CALIBRATING BALANCE GAIN OF ANALOG FRONT END IN OPTICAL DISK DRIVE TO CALIBRATE VARIATION OF FOCUS BALANCE  
A method for pre-calibrating a balance gain of an analog front end in an optical disk drive to calibrate a variation of a focus balance. The method includes the steps of: adjusting the balance...
US20060087928 Mirror element and mirror array  
Providing a mirror element and a mirror array used for an optical pickup of optical apparatus or optical disc apparatus that obtain a large displacement amount with a low voltage The mirror...
US20050265137 Disc drive apparatus  
A disc drive apparatus (1) comprises a sledge (10) radially displaceable with respect to an apparatus frame (3); a platform (20) radially displaceable with respect to said sledge (10); a...
US20080002534 Optical disc/disk drive control system  
The invention provides a tracking servo control system and a tracking control method for detecting a land pre-pit signal. According to the system and the method, a laser beam is moved to a...
US20080080330 Tilt adjusting mechanism for objective lens  
A tilt adjusting mechanism adjusts a tilt of at least one of a plurality of objective lenses arranged to face an optical disc so that they have the same inclination state. The tilt adjusting...
US20090175138 SERVO CONTROLLING APPARATUS AND METHOD OF HOLOGRAPHIC INFORMATION RECORDING/REPRODUCING SYSTEM  
A servo controlling apparatus of a holographic information recording/reproducing system changes the foci of reference light and signal light in a depth direction of a holographic information...
US20060028958 Alignment apparatus in an optical pickup device  
An alignment apparatus in an optical pickup device is provided. It comprises a laser diode, a first coupling carrier, an optical assembly, a signal detector, a record medium and a second coupling...
US20080094946 Method and Apparatus for Scanning Data Stored on an Optical Storage Medium  
A method and an apparatus for scanning data stored along a track (16) on an optical storage medium (10) are provided. A light beam (12) is projected on the optical storage medium, thereby creating...
US20110149702 Optical Disc Drive Apparatus, Optical Pickup Control Method and Program  
An optical disc drive apparatus includes: a first optical pickup and a second optical pickup which record data on an optical disc and reproduce data recorded on the optical disc; a slide mechanism...
US20070263494 Optical Disk Device  
There is provided an optical disk device that is capable of obtaining a required optical disk holding force uniformly and sufficiently. When information held and recorded on an optical disk is...
US20080019230 Optical pick-up and optical recording/reproducing apparatus  
The present invention provides an optical pick-up device and an optical recording/reproducing apparatus both of which can realize (i) a stable component accuracy, (ii) improvement in productivity,...
US20080219107 Built-in type optical disc apparatus  
For providing a built-in type optical disc apparatus, to be installed in a part of an electronic equipment having plural kinds of electric power source portions within a housing thereof, enabling...
US20070070836 Optical disk device  
A drive stoppage command unit commands a drive unit to stop driving a pickup head, and an objective lens of a pickup head, when it has decided that the power supply voltage of operating power...
US20100074064 METHOD FOR ADJUSTING TILT OF OPTICAL PICK-UP HEAD  
A method for adjusting a tilt of an optical pick-up head includes the steps of: moving the optical pick-up head to a first location and focusing on; obtaining a first focus control power and a...
US20060104162 Method for driving an actuator, actuator drive, and apparatus comprising an actuator  
An actuator driver circuit comprises a drive signal source (60) and an electrical damping element (100) having a negative resistance connected in series with the drive signal source (60). A...

Matches 1 - 50 out of 154 1 2 3 4 >