Matches 1 - 50 out of 234 1 2 3 4 5 >


Match Document Document Title
US20060072405 System and method for disc labeling  
An optical disc drive reads identification information from an optical disc inserted in the drive in a label orientation having a label side presented to the optical disc drive laser by reading...
US20110002204 POWER ADJUSTMENT METHOD, INFORMATION WRITE METHOD AND INFORMATION WRITE MEDIUM  
A write power adjustment method makes it possible to set optimum write power with high precision. Trial writing is conducted by using write power Pw,m (where m is an integer) of a plurality of...
US20090103404 Optic disk drive power management method for computer system  
Disclosed is an optic disk drive power management method for a computer system, which uses a keyboard controller, together with a system basic input/output system of the computer and a virtual...
US20080273436 Integrated Photo Monitor Circuit and Optical Pickup Unit  
The invention provides an integrated photo monitor circuit (12), particularly an integrated photo monitor circuit (12) for CD and DVD applications, comprising a photo detector (14), an amplifier...
US20080165635 Estimation of Maximum Available Write Power of an Optical Storage Drive  
In summary, the present invention provides a method for estimating maximum available write power of an optical storage drive. Optical drives have a certain guaranteed maximum power corresponding...
US20090274023 DISC DRIVE AND PHOTO-DETECTOR CIRCUITS  
A method of reducing power dissipation in a variable-gain photo-detector circuit is described. The variable-gain photo-detector circuit has an output to output a main spot signal and at least one...
US20100054095 POWER SAVING METHOD FOR OPTICAL DISK DRIVE OF RUGGED ELECTRONIC DEVICE  
A power saving method for an optical disk drive of a rugged electronic device is described. In the method, whether a watertight lid outside the optical disk drive is in open/closed state is...
US20060140086 Optical data write/reproduce device for determining optimum write strategy and writing data according to optimum writ strategy, and method thereof  
An optical write and reproduce device is provided to determine an optimum write strategy from a broader selection of choices. The optical write and reproduce device has an optical pick-up part for...
US20090252004 LIGHT BEAM OUTPUT CONTROL DEVICE, LIGHT BEAM EMISSION CONTROL PROGRAM, AND RECORDING MEDIUM ON WHICH LIGHT BEAM EMISSION CONTROL PROGRAM IS RECORDED  
A light beam output control device is provided, which can adequately perform a negative feedback control for different light beams. An optical pickup device 100 calculates an error between a...
US20080232209 Method Of Controlling Power States In A Multimedia System  
This invention relates to controlling the power states in a multimedia system comprising a multimedia connector box including a multimedia source interconnected to a transmitter module, and a...
US20070206464 APPARATUS AND METHOD FOR CHOOSING TARGET WRITE STRATEGY IN OPTICAL STORAGE SYSTEM  
An apparatus for selecting a target write strategy from a plurality of write strategies is disclosed. The apparatus includes a clock module, for monitoring time taken to write data to an optical...
US20050190670 Method and apparatus for reproducing information recorded on a super resolution information storage medium  
A method of and apparatus for reproducing information recorded in a super resolution information storage medium (SRISM) using an appropriate actual reproduction power, which is actually...
US20090245042 OPTICAL DISC APPARATUS AND LIGHT POWER CORRECTING METHOD  
An optical disc apparatus includes: an obtaining unit obtaining a sensitivity coefficient indicating a relation between a light power of a semiconductor laser and a monitor value; a first deriving...
US20060140083 Apparatus for writing a data to an optical storage media and servo control unit and laser diode driver unit thereof  
An apparatus for writing data to an optical storage media and a servo control unit and a laser diode driver unit thereof. The apparatus making a laser diode emit light includes a servo control...
US20070247988 Method for evaluating read stability of optical disc and information reproduction apparatus  
A method and apparatus for measuring the read stability of an optical disc are provided. Specifically, readout of the optical disc is repeated at each of at least two read laser beams powers being...
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,...
US20060158981 Method for two dimensional control of mark size on an optical disc, write strategy for such a method, recording medium and recorder using two dimensional control of mark size  
An optical recording method is disclosed for writing a two-dimensional data pattern in a phase-change disc, i.e. a optical disc with a phase change material. The effect of thermal cross-erase is...
US20070153648 Information storage medium storing different read power information  
A hybrid information storage medium includes a lead-in area storing basic information regarding the information storage medium, a lead-out area indicating an end of the information storage medium,...
US20070280077 Write processing method for optical storage device and optical storage device  
In order to decrease alternate processing when a verification error is detected for an optical storage medium, a position BS and a length BL of a defect are stored when a verification error is...
US20080298186 Disk Drive With Multiple Level Power Reduction During Write  
A disk drive data storage system comprising at least one data storage disk and a sensor assembly proximate the data storage disk. The sensor assembly further comprises circuitry for writing data...
US20060146668 System and method for multi-laser write operations to an optical medium  
An information handling system optical drive improves information write speeds by using multiple lasers in conjunction with each other to perform a write to an optical medium data or label...
US20080117750 OPTICAL DISC RECORDING DEVICE AND RECORDING METHOD THEREOF  
An optical disc recording device according to the present invention is capable of quickly performing the OPC operation for a rewritable optical disc, and is also capable of setting the proper...
US20060256678 Write strategy for a data storage system  
A device for recording information in a track on a record carrier writes and reads marks that represent the information. A radiation source control unit (29) controls the power of the radiation...
US20070127334 POWER ADJUSTING METHOD FOR PICKUP HEAD ACCESSING OPTICAL DISC AND OPTICAL DISC INFORMATION REPRODUCTION DEVICE THEREOF  
A power adjusting method for a pickup head accessing an optical disc. The method includes identifying a target data transfer rate utilized by the PUH for accessing the optical disc; calculating an...
US20060176790 Optical disk writing and reading apparatus, and method thereof  
An optical disk writing and reading apparatus and a method thereof is provided. The optical disk writing and reading apparatus has an optical pick-up for writing or reading data on an optical disk...
US20060227682 Determination of optimum writing strategy for recording data onto recordable optical disk  
The invention is to provide a method for determining an optimum writing strategy for an optical disk drive to record data onto a recordable optical disk. According to a preferred embodiment of the...
US20070195666 Method to determine optimum erase power in optical disc apparatus  
A method to determine an optimal erase power in an optical disc apparatus detects optimal erase power in an erasing operation before performing an optimum power calibration (OPC) for detecting...
US20060256680 Optical disc device and disc reproducing method  
The first layer (DVD layer) is first reproduced using the red layer light. Thereafter, search for the second layer (HDDVD layer) is performed with the blue laser light in accordance with the...
US20060280070 Radiation source driving device and method for driving a radiation source  
The invention pertains to a radiation source driving device for controlling a voltage fed to a radiation source in an information reproducing system comprising a radiation source controller for...
US20100039907 OPTICAL DISK DEVICE  
An optical disk device includes a first control circuit controlling a light quantity of a semiconductor laser according to a first light quantity set value corresponding to a first light quantity...
US20070053259 WRITE STRATEGY DIRECTORY AND METHOD FOR MAINTAINING THE SAME  
A write strategy directory is stored in an optical recorder to provide optimum write strategies for the optical recorder to write optical discs according to characteristic values of the optical...
US20070121445 Optical information reproducing method  
Disclosed is a method of reproducing optical information by applying laser light to the medium while rotating a recording medium having concentric information tracks or a spiral information track...
US20050002316 Laser driver circuit with reduced noise and optical pickup circuit for use with the same  
An optical pickup with a laser driver circuit is provided to overcome an increase in size of an optical pickup, which is caused by a ferrite bead or capacitor being provided in a drive current...
US20090252006 OPTICAL DISC DEVICE AND CONTROL METHOD  
According to one embodiment, an optical disc device includes a semiconductor laser which generates laser light to irradiate an optical disc, and an automatic power control circuit which detects an...
US20100135131 METHOD FOR DETECTING BLANK AREA OF POWER CALIBRATION AREA  
The present invention relates to a method for detecting a blank area of a power calibration area. The method includes the steps of: selecting a recording test area in the power calibration area;...
US20060062116 Optical data link capable of compensating tracking error  
The present invention provides an optical data link capable of compensating the fluctuation due to the tracking error. The data link of the invention provides a look-up-table in which a plurality...
US20110075531 Super-Resolution Optical Disc Reader and Read Method Optimized Through Reflectivity Measurement  
The invention relates to the field of the optical recording of information on a medium, such as an optical disc. To read an optical disc in super-resolution mode, a procedure for optimizing the...
US20090316541 STORAGE APPARATUS AND ESTIMATING METHOD OF POWER CONSUMPTION FOR STORAGE APPARATUS  
Power consumption is calculated in accordance with an operation state of disk devices without using a power meter in a storage system. The power consumption in accordance with the operation state...
US20060077834 Optical disk recording device for optimizing write pulse string in use of energy level of write pulse string and method thereof  
A method of optimizing a write pulse string, and an optical disk device to perform the method, the method including measuring an energy level of the write pulse string used in recording data on an...
US20090219792 DATA REPRODUCING DEVICE AND DATA REPRODUCING METHOD  
According to one embodiment, a data reproducing device according to the invention includes a frequency difference detector, a phase comparator, a loop filter, an integrator, a first conversion...
US20100039908 AUTOMATIC POWER CONTROL SYSTEM FOR OPTICAL DISC DRIVE AND METHOD THEREOF  
A method for calibrating an initial driving signal for driving an optical pick-up head of an optical disk drive is provided. On one embodiment, said optical disk drive is utilized for reading or...
US20060146669 POWER CONTROL METHOD FOR ELIMINATING OUTPUT POWER OFFSET OF A PICK-UP HEAD IN AN OPTICAL DISC DRIVE  
A power controlling method for eliminating output power offset of a pick-up head in an optical disc drive. The power control method includes measuring a first predetermined power related to a...
US20060087952 Laser power control system  
This invention provides a laser power control system to control the power of the emitted laser from an optical pick-up head. The system comprises a temperature sensor and a calculating unit. The...
US20090262611 OPTICAL DRIVE WITH IMPROVED LASER POWER CONTROL (LPC)  
The invention relates to an optical drive for recording information on an optical carrier or disk (1). The optical drive has a radiation source (4) controllable by control means (50, 22) having...
US20060077823 SYSTEM AND METHOD FOR AUTOMATICALLY CALIBRATING LIGHT EMITTING DEVICE  
A method of automatic light emitting device calibration includes providing an optical device having a light emitting device and a photo monitor; controlling power of the light emitting device by...
US20050270959 Recording method for optical recording medium, and optical recording apparatus  
The present invention is a recording method for optical recording medium forms a few types of amorphous mark vary from at least any one from length and area upon repeated irradiation by a...
US20080101176 Optical Disc Device  
There has been an issue that the operation of a semiconductor circuit performing edge timing control cannot follow up in the multipulse generation process where high multiplication of speed...
US20060109759 Method for determining optimum recording power using gamma curve  
A method for determining an optimum recording power by using the analysis of a gamma curve, includes the steps of receiving a data recording start command; determining an area to conduct an...
US20060280071 Recorder, a disc and a method for recording information on a disc  
When recording information in tracks or in a two-dimensional pattern care must be taken not to irradiate the adjacent tracks or pits. This results in a loss of data density on the recording medium...
US20080101175 POWER SAVING METHOD AND SYSTEM APPLIED IN OPTICAL DISK DRIVE  
The present invention sets forth a power saving method and a power saving system applied in an optical disk drive. The power saving system comprises a central processing unit, a spindle motor, an...

Matches 1 - 50 out of 234 1 2 3 4 5 >