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US20110222385 |
APPARATUS AND METHOD FOR TESTING SPOKE SENSOR
An apparatus and a method for testing spoke sensor are disclosed. A drive unit is started to rotate a test disc to a predetermined rotation speed. A module test unit is electrically connected to a... |
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US20060262687 |
Reproduction method, optical disk drive, and IC circuit
In an optical disk drive that is equipped with a binarization circuit by the PRML method and carries out record/reproduction at a speed higher than a standard speed, to realize reproduction... |
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US20060262686 |
DIGITAL DATA SLICING CIRCUIT AND SLICING METHOD
A digital data slicing circuit and a method for slicing digital data are provided. The digital data slicing circuit comprises a slicer, a phase locked loop (PLL), a data jitter circuit, and a... |
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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... |
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US20050286365 |
Initial setting of power of radiation beam for reproducing data recorded on optical information medium
The present invention provides a method for initially setting a power of a radiation beam for reproducing data recorded on an optical information medium. The method, according to the invention,... |
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US20110292781 |
METHOD FOR DETECTING OBLIQUITY OF OPTICAL DISC DRIVE
A method for detecting the obliquity of an optical disc drive is provided. The method includes the steps of calibrating balance gains of TE signals and CE signals with predetermined obliquities of... |
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US20090213711 |
METHODS APPLIED TO OPTICAL STORAGE MEDIUM FOR IDENTIFYING BOUNDARY BETWEEN AREAS STORING INFORMATION WITH DIFFERENT CHARACTERISTICS
A method applied to an optical storage medium for identifying a boundary between a first area and a second area is provided. The first area and the second area store information with different... |
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US20130064059 |
OPTICAL DISK LIBRARY DEVICE AND OPTICAL DISK DEVICE SELECTING METHOD
In an optical disk library device using a plurality of optical disk devices, before optical disk devices execute recording or reproduction of information to or from optical disks, self-monitoring... |
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US20100027395 |
OPTICAL DISK DEVICE AND OPTICAL DISK PROCESSING SYSTEM HAVING OPTICAL DISK DEVICE
An optical disk device which quickly detects that a transparent disk is loaded is provided. When an optical disk is loaded, a drive controller of an optical disk device drives a spindle motor and... |
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US20100135138 |
OPTICAL DISK DRIVE AND METHOD OF DETERMINING WRITE STRATEGY THEREOF
An optical disk drive, and a method of determining a write strategy thereof. In the method of determining a write strategy of an optical disk drive where a mark and a space are formed on an... |
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US20090003165 |
METHOD AND APPARATUS FOR GENERATING SYNCHRONOUS CLOCK FOR WRITE OPERATION IN A DISK DRIVE
According to one embodiment, a disk drive configured to write data to a disk being rotated by a spindle motor has a synchronous clock generator that generates a synchronous clock to use during the... |
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US20060092788 |
Method for reading an optical disc
A method for reading data from the optical disc at a reading speed. The method includes the steps of (a) reading the data according to a preset amplified signal corresponding to the reading speed;... |
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US20100039912 |
OPTICAL INFORMATION RECORDING/REPRODUCING UNIT AND METHOD OF MEASURING RECORDED-MARK QUALITY
An equalizer (22) performs a PR equalization of a reproduced signal waveform output from an A/D converter (21). A reference-waveform generation unit (42) generates a reference reproduced-waveform... |
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US20090003164 |
Fast Disc Recognition by Elimination of Calibrations
A method and a device for fast disc recognition for use in read/write performances when an optical disc is connected to an optical drive, including the provision of a set S of parameters for safe... |
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US20120263026 |
METHOD FOR DETERMINING ECCENTRICITY OF OPTICAL DISC
A method for determining an eccentricity of an optical disc is provided. The method includes predetermining a plurality of optical disc with known eccentric distances, respectively measuring a... |
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US20060250912 |
System and method for multi-laser optical medium
An optical medium stores enabling information readable by a blue laser that enables the reading of content from the optical medium by a red laser. For instance, the enabling information is content... |
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US20150255108 |
RECORDING AND REPRODUCING APPARATUS
A recording and reproducing apparatus of this disclosure includes, reader writer 5 which acquires magazine identifying information and capacity information from RF tag 13 provided with magazine,... |
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US20080279069 |
Optical Disk Apparatus With Approximate Focus Control of Laser Beam
An optical disk apparatus is constructed for writing or reading information by irradiating a laser beam onto an optical disk while rotating the optical disk under a focus control of the laser beam... |
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US20080273432 |
PROCESSING METHOD OF OPTICAL DISC RECORDING/PLAYBACK SIGNAL, OPTICAL DISC RECORDING/PLAYBACK DEVICE AND PROGRAM
A processing method of an optical disc recording/playback signal includes: measuring a length of a first mark of a predetermined coding length which appears immediately following a shortest space... |
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US20140169148 |
DISC PLAYER AND BURN-IN TEST METHOD FOR DISC PLAYER
A disc player plays a test disc to perform a burn-in test. The disc player includes a driving unit, a timing unit, storage, an input unit and an output unit. The driving unit plays the test disc... |
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US20090225639 |
SIGNAL EVALUATION METHOD AND SIGNAL EVALUATION APPARATUS
A signal evaluation method according to the present invention is a method for evaluating a read signal, retrieved from an information recording medium, based on a binarized signal generated from... |
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US20090237671 |
ANALYSIS OF OPTICAL EFFECTS ON STORAGE MEDIUM
A method of analyzing the quality of optical effects on an optical recording medium as well as applications of the method in connection with optimizing a write strategy and analyzing the write... |
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US20090003150 |
Method for calibrating focus balance of optical disk drive
A method for calibrating focus balance of an optical disk drive includes the steps of: zeroing a reference value; presetting a variable and a direction for calibrating the focus balance;... |
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US20090245054 |
METHOD AND DEVICE FOR ENHANCED ROBUSTNESS OF NEAR-FIELD OPTICAL SYSTEMS
The invention comprises a method and device for application in a near-field optical system such that the robustness of the optical system and the system performance are enhanced. Use or threshold... |
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US20080179978 |
MOTOR
In a motor, a retaining claw with a slanted surface is arranged around the upper end of a tubular portion of a housing for mounting a rotor. A cylindrical portion is integrally formed in a... |
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US20090003166 |
OPTICAL DISK REPRODUCTION APPARATUS AND OPTICAL DISK REPRODUCING METHOD
According to one embodiment, a reproduction apparatus includes an execution unit configured to execute an advanced application, a detection unit configured to detect a series of keys which are... |
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US20090073836 |
Disk decision method and optical disk drive using the disk decision method
A method of determining the type of disk loaded on an optical disk drive, and an optical disk drive using the method are provided. The disk decision method includes operations of detecting a... |
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US20090052288 |
DISTANCE MEASURING APPARATUS
A distance measuring apparatus for measuring a distance to a target point in a target area comprises a laser oscillator for generating a laser beam having a first wavelength, a nonlinear crystal... |
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US20080084801 |
Optical pickup apparatus and optical reproducing method
A detection unit of an optical pickup apparatus includes an optical element to simultaneously extract plural specified lights having a different polarization direction respectively in a separated... |
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US20050174908 |
Device for recording data on a medium, method implemented in such a device and recording medium obtained from said device
This device intended to record optical discs 5 comprises a control circuit for controlling the power of the recording laser beam 70 which takes a plurality of parameters into account notably the... |
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US20080212430 |
Method and System for Scanning an Information Carrier Via One-Dimensional Scanning
A system for reading an information carrier having a data layer (101) on which is stored a data set. A probe array generating means (104) generates an array of light spots (102) which is applied... |
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US20090028020 |
Optical disk device and control method for the same
Provided is an optical disk device capable of recording and/or reproducing information on optical disks with high reliability; and a method for controlling the optical disk device. The position of... |
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US20070286043 |
Information processing device
An information processing device may include a first frame provided with a scanner for reading information recorded on a medium, a second frame which faces the first frame across a traveling path... |
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US20090116354 |
Recording parameter setting device, program thereof, computer-readable recording medium containing the program, information recording medium, recording/reproducing device, and recording parameter setting method
A recording parameter setting device including a trial recording parameter setting section and a reproduced signal quality judging section. The reproduced signal quality judging section judges... |
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US20080074972 |
Information Recording Medium, Information Recording Device and Method and Computer Program
An information recording medium, provided with: a first recording layer (L0 layer) to record therein record information by irradiating laser light (LB); and a second recording layer (L1 layer) to... |
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US20060092784 |
Systems and methods for writing data to optical media using plural laser heads
A method for writing data on optical media includes sequentially outputting the same data to an array of laser heads over time so that the laser heads generate laser beams to write the same data... |
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US20050281162 |
Laser drive system reduced EMI noise
In optical disc drive, laser diode is used, and also HFM (High Frequency Module) oscillator is used to reduce laser mode hopping noise. Big EMI noise is radiated by the HFM current for optical... |
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US20080165644 |
RECORDING/REPRODUCING APPARATUS AND METHOD
Provided are a recording/reproducing apparatus and method for optimizing data recording. The recording/reproducing apparatus sets a predetermined length which is an integer multiple of a unit... |
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US20100260034 |
TEST DISC AND DRIVE VERIFICATION METHOD
In a test disc, data (test data) is recorded in such a manner as to fill an entirety of a data region and, next to this test data, border-out data is recorded which contains information indicating... |
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US20100220568 |
SIGNAL MEASUREMENT APPARATUS AND BEAM MODULATION APPARATUS USED THEREIN
An apparatus for modulating an incident beam includes a body that is non-transmissive and rotatable about an axis perpendicular to a surface of the body. The body has a first set of features... |
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US20100188951 |
ENCODING DEVICE, SYSTEM AND METHOD
The disclosure provides an encoding device comprising a reflector, a rotating disk having at least one aperture; and an optical unit comprising a light emitter and a light detector. Said disk... |
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US20100142348 |
OPTICAL INFORMATION MEDIUM MEASUREMENT METHOD, OPTICAL INFORMATION MEDIUM, RECORDING APPARATUS AND REPRODUCING APPARATUS
An optical information medium measurement method of the present invention, for measuring a degree of modulation in an optical information medium of a multilayered structure having a plurality of... |
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US20080084806 |
Optical recording medium, recording method of information on optical recording medium and reproducing method thereof
A recording layer of an optical recording medium is made of a polymer film containing a polymer solid, such as polymethyl methacrylate, as a main ingredient. The polymer film contains a dye to... |
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US20110242953 |
Systems and Methods for Testing Unformatted Optical Recording Media
Various embodiments herein include one or more of systems, methods, software, and/or data structures to test and evaluate unformatted optical media such as optical tape and optical discs.... |
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US20110149704 |
SIGNAL EVALUATION METHOD AND SIGNAL EVALUATION APPARATUS
A signal evaluation method according to the present invention is a method for evaluating a read signal, retrieved from an information recording medium, based on a binarized signal generated from... |
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US20100315926 |
HFM ENABLE CONTROL SYSTEM
A modulation control system for use with a high frequency modulator is described. This system comprises a latch for selectively receiving enable signals, wherein the latch transmits a latched... |
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US20100296378 |
CALIBRATION CIRCUIT AND METHOD THEREOF FOR DATA RECOVERY
A calibration circuit and a calibration method thereof for data recovery are provided. The calibration circuit includes an amplitude detector, a period detector, and a compensation circuit. The... |