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Dynamic Information Storage Or Retrieval > Control Of Storage Or Retrieval Operation By A Control Signal To Be Recorded Or Reproduced > Mechanism Control By The Control Signal > Control Of Transducer Assembly Mechanism > Power Control For Energy Producing Device > For Storage > Stored And Retrieved Testing Signal Stored And Retrieved Testing SignalStored And Retrieved Testing Signal patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/17/08 - 20080013426 - Method of recording and/or reproducing data with respect to a multi-layer information storage medium having optimal power control areas An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition, wherein OPC areas in odd-numbered and even-numbered information storage layers are disposed not to face each other and not to contact each other, ... 01/17/08 - 20080013425 - Apparatus for reproducing data from information storage medium having multiple storage layers with optimal power control (opc) areas and buffer areas An information storage medium and an apparatus for recording and/or reproducing the information storage medium capable of controlling optimal recording power without an influence of an optimal power control (OPC) area in a layer upon an OPC area in a different layer. The information storage medium includes at least one ... 01/10/08 - 20080008069 - Information storage medium having multiple storage layers with optical power control areas, and recording apparatus to record data with respect to information storage medium An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition. Optimal power control areas in odd-numbered and even-numbered information storage layers viewed from a direction in which light is incident upon the information ... 01/03/08 - 20080002544 - Information storage medium having storage layer with optical power control area, and recording apparatus to record data with respect to information storage medium An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition. Optimal power control areas in odd-numbered and even-numbered information storage layers viewed from a direction in which light is incident upon the information ... 01/03/08 - 20080002543 - Method of obtaining optimal recording condition with respect to information storage medium having multiple storage layers with optical power control areas An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition. Optimal power control areas in odd-numbered and even-numbered information storage layers viewed from a direction in which light is incident upon the information ... 11/15/07 - 20070263506 - Method and system for detecting of errors on optical storage media A method of grading a level of damage to digital data provides a scan of the digital data for errors therein. Based on the detected errors and predetermined data based on at least one of audio human perception and human visual perception a grade of plain quality is determined. The ... 11/01/07 - 20070253300 - Method and apparatus for establishing manufacturer-specific test writing parameters for writing of writable optical storage media According to an embodiment, there is provided an optical storage media recording/reproducing apparatus for calibrating an amount of light energy output by the recording/reproducing apparatus during a recording operation, the recording/reproducing apparatus comprising: a reproducing unit to read unique property information from a writable optical disc inserted into the apparatus, ... 11/01/07 - 20070253298 - Optical disk recording/reproducing apparatus and optical disk recording method An optical disk recording/reproducing apparatus for accurately determining optimum recording power of a laser beam even if medium deviations occurs, stabilizing recording quality, and realizing recording which hardly causes read inability error. In test recording, a laser drive (5) irradiates a laser beam to an optical disk (1) to record ... 10/11/07 - 20070237046 - Optical disc recording apparatus and method for determining optimum write power thereof A method for determining optimum write power for an optical disc in an optical disc recording apparatus includes, test writing the optical disc as a recording medium at a first position where a write sensitivity is higher than an average write sensitivity of the optical disc and at a second ... 09/20/07 - 20070217306 - Optical disc apparatus and method of writing information to an optical disc An optical disc apparatus may write information to an optical disc by forming a mark and a space on the optical disc. The optical disc apparatus may include a write stopping unit, a deviation calculating unit, and a write strategy correction unit. The write stopping unit may temporarily stop writing ... 09/06/07 - 20070206466 - Optimum power control for optical storage media An optimal power calibration process in which an OPC process is performed on the outer OPC area (12) of an optical disc (10) at a plurality of write speeds a, b and c, and an OPC process is also performed on the inner OPC area (14) at the write speed ... 08/16/07 - 20070189139 - Information recording apparatus and method, information recording/reproducing apparatus and method and computer program An information recording apparatus includes: a recording device capable of recording information into a data area of an information recording medium, by irradiating laser light, in conformity with a predetermined error correction method; an optimum-recording-power detecting device for obtaining an optimum recording power of the laser light, by recording test ... 08/02/07 - 20070177473 - Writing condition optimizing method and apparatus, and optical recording medium A method of optimizing a writing condition of an optical recording medium, including writing test pattern data with the writing condition on the optical recording medium, comparing an error pattern binary signal detected by reproducing the written test pattern data with a correct pattern binary signal of the test pattern ... 07/26/07 - 20070171794 - Recording method, recording apparatus, and storage medium The present invention is related to a recording method, a recording apparatus, and a storage medium which determine an optimum recording power value by performing test writing on a test zone of a recording medium and record information on the recording medium with the determined optimum recording power, wherein the ... 07/12/07 - 20070159942 - Optical disc recording method and optical disc A recording method for an optical disc having at least three recording layers (11, 12, 13, 14), in which test recording areas are formed in the odd-numbered recording layers (11, 13) and the even-numbered recording layers (12, 14) in positions that are mutually non-overlapping in the thickness direction of the ... 07/05/07 - 20070153655 - Method and apparatus of determining and storing optimized power calibration data for recording medium In the present invention, an identification code of the recording medium is searched in a first memory and a second memory. If the identification code is failed to be found in the memories, an optimized power calibration (OPC) operation is executed to generate new OPC data. The new OPC data ... 06/21/07 - 20070140083 - Method and apparatus to determine an optimum reproducing condition on an optical recording medium A method of determining an optimum reproduction condition of a first mark recorded on an optical recording medium that is smaller than a resolution of a pickup to reproduce the first mark. The method includes obtaining an optimum reproduction condition of a second mark having a length which closely approximates ... 06/07/07 - 20070127336 - Optical disk apparatus and method of setting recording power According to the present invention, an optimum value of a laser power for recording data on a high-density optical disk can be set with high accuracy. A test signal whose erase power Pe is fixed and recording power Pw is varied is recorded on the optical disk. The recorded signal ... 05/31/07 - 20070121452 - 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 layer 1 are expanded accordingly. This test ... 05/31/07 - 20070121451 - Recording control method for optical disk recording apparatus and optical disk recording apparatus In the present invention, the processing sequence of a microprocessor for restructuring the recording parameters when changing the recording system from the CAV system to a CLV system is as follows: (1) interrupt the recording process; (2) calculate linear velocity at a broken point where recording linear velocity becomes constant; ... 05/31/07 - 20070121450 - Recording method, recording apparatus, program and recording control apparatus The present invention provides a recording method for recording information on a recording medium under one recording condition of a plurality of recording conditions. The recording method includes the steps of: (a) recording a plurality of test information on the recording medium under the plurality of recording conditions; and (b) ... 05/31/07 - 20070121449 - Information recording medium and information recording device and method An information recording medium includes: a first recording layer to for recording first information; and one or a plurality of second recording layers, disposed on the first recording layer, for recording second information. Each recording layer has a predetermined area in which power calibration is performed to detect an optimum ... 05/24/07 - 20070115776 - Optical disk apparatus An optical disk apparatus for performing ROPC. A controller of the optical disk apparatus detects the quantity of reflected light Bo acquired when OPC is performed to set initial recording power Po; computes recording power P such that Bo/Pon=B/Pn is achieved in relation to the quantity of reflected light B ... 05/24/07 - 20070115775 - Method of determining optimum write power of optical disk and optical disk driving apparatus A method of determining an optimum write power of a recordable optical disk to control an optimum power of the recordable optical disk, and an optical disk driving apparatus using the same, the method including: performing a test, in which a test pattern is recorded on the optical disk and ... 05/24/07 - 20070115774 - Information recording method and an information recording apparatus An information recording method and an information recording apparatus are disclosed, which are mainly applicable to a multilayer optical recording medium, recording on a layer being carried out from outer circumference to inner circumference, such as in an OTP method. The information recording method includes a step of trial writing ... 05/17/07 - 20070109934 - Information recording apparatus and method, computer program, and information recording medium An information recording apparatus (300) is provided with: a recording device (352) for irradiating an information recording medium (100) with laser light and for recording information onto the information recording medium; an obtaining device (354) for obtaining at least one of (i) a special OPC strategy for defining a waveform ... 05/10/07 - 20070104060 - Optimal recording method for optical recording media and optical recording medium stored with information about optimum recording conditions An optimal recording method for optical recording media which is capable of recording information about optimum recording conditions on an optical recording medium in order to allow a subsequent recording of data at an optimum recording power, based on the recorded optimum recording condition information. In this method, test data ... 05/10/07 - 20070104059 - 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 that recording is prohibited. By determining whether the data can be played back appropriately ... 05/10/07 - 20070104058 - Information recording medium, information recording device and method, information recording/reproducing device and method, and computer program An information recording medium (100) is provided with: a recording area (106) to record therein record information by irradiating laser light thereto; and a recording control area (103) to record therein control information for controlling a laser power in accordance with a recording position in the recording area. ... 05/10/07 - 20070104057 - Multi-layer writable optical record carrier with an optimum power calibration area, and method and apparatus for forming optimum power calibration areas on such a record carrier A writable optical record carrier (100) comprising a plurality of recording layers LO, . . . , Ln-1 separated by a spacer material, each recording layer comprising an optimum power calibration area (101,111,121,131) having a first portion (102,112,122) with an average reflection value representative of a recorded layer and a ... 04/26/07 - 20070091751 - Optical disk apparatus and optical disk control method performing optimum power calibration In OPC where test writing is performed in a power calibration area of an optical disk by changing laser power in a plurality of levels to obtain optimum laser power based on the result, the optical disk apparatus prepares two change patterns of the laser power and uses them alternately. ... 04/19/07 - 20070086294 - Optical recording medium and information recording method An optical recording medium has a multi-layer structure recording layer structure recording layer portion including plural recording layers provided with tracks for guiding a recording light and being adapted to record data, where recording condition information and recording layer identification information for the recording layers are recorded on the tracks ... 04/19/07 - 20070086293 - Method and apparatus for determining writing power for recording data A method and apparatus for determining an optimal writing power for recording data on a recording medium such as an optical disk, are discussed. The method according to an aspect of the present invention includes (a) performing an optimal power calibration (OPC) operation on a first area of the recording ... 04/19/07 - 20070086292 - Information recording medium, and information recording apparatus and method A disc-shaped information recording medium includes a first recording layer (L0 layer) having (I) a first trial write area (101P-1) for trial write of first trial write information for calibration of the laser beam along the first track path (TP1) from the inner circumference toward the outer circumference and (II) ... 04/12/07 - 20070081436 - Read and write power control methods and system for optical recording device The present invention discloses read and write power control methods and system for an optical recording device that records information on an optical disk having read-only areas. The read and write power control methods respectively introduce the steps of determining a specific level of a former power control signal output ... 04/05/07 - 20070076551 - Data write method and optical disc apparatus A data writing method includes recording test data to a test writing area of an optical disc at a plurality of test recording power values, reproducing the test data, obtaining an asymmetry values for each the test recording power values on the basis of reproduction signals of the test data, ... 03/29/07 - 20070070846 - Method and apparatus for recording and reproducing signal on and from optical information recording medium Test signals are recorded on a prescribed area in an optical disc. The prescribed area is scanned by a laser beam while the power of the laser beam is changed among different DC erasing values. The different DC erasing values are assigned to the recorded test signals, respectively. The recorded ... 03/29/07 - 20070070845 - Automatic write strategy calibration method for optical drive A write strategy calibration system for an optical media playback device comprises memory for storing a write strategy table. A control module generates a write signal to write a training pattern to an optical storage medium according to calibration data stored in the write strategy table. A write strategy analysis ... 03/22/07 - 20070064561 - Optical recording/playback apparatus and method for adjusting playback parameters thereof An optical recording/playback apparatus and a method for adjusting playback parameters of the optical recording/playback apparatus are disclosed. The method includes loading an optical disc, determining whether there is data recorded on a data zone of the optical disc, recording test data on an optimal power control (OPC) zone on ... 03/22/07 - 20070064560 - Information recording device and method, and computer program An information recording device comprising a recording unit that records recording information by applying a laser beam to an information recording medium having a first recording layer for recording recording information by being irradiated with a laser beam and a second recording layer for recording recording information by irradiating with ... 03/15/07 - 20070058508 - Apparatus and method for controlling a recording light signal A method and apparatus for controlling a light source for use with an optical disc having optimum power values for different stages in a writing signal for the optical disc, includes comparing current operational characteristics of the light source to previous operational characteristics, and, when the current operational characteristics differ ... 03/15/07 - 20070058507 - Apparatus and method for controlling a recording light signal A light source for use with an optical disc is controlled by comparing current operational characteristics of the light source to previous operational characteristics and obtaining optimized voltages for each stage of a writing signal when the current operational characteristics differ from the previous operational characteristics by a predetermined amount. ... 03/15/07 - 20070058506 - Apparatus for controlling erasing power level and method using the same An apparatus for controlling an erasing power level, which is capable of optimally setting a power level applied to a disc when erasing a test period in an OPC (Optimum Power Control) area of the disc, and a method using the apparatus. The apparatus includes: a pickup unit irradiating light ... 03/08/07 - 20070053265 - Laser power control apparatus for optical disk player The optical disk player is capable of writing data with optimum laser power corresponding to temperature. In the optical disk player, a laser diode irradiates a laser beam. A photo sensor detects light intensity of a reflected beam reflected from an optical disk. A processor controls laser power of the ... 03/08/07 - 20070053264 - Method for controlling recording power of optical disc apparatus A method for controlling the recording power of an optical disc apparatus. The method can search for an optimum recording power using a starting power stored in a recordable high density optical disc based on a manufacturer thereof, and perform recording operations with the optimum recording power while the start ... 03/01/07 - 20070047409 - Data recording system and control method thereof A data recording control method for an optical recording system is provided. The optical recording system includes a host and an optical recording device. The method first provides a set of preferences about a write strategy learning at the host. Then, at the optical recording device, the method performs the ... 03/01/07 - 20070047408 - Method and apparatus for laser control during recording The invention relates to recording on a medium, and in particular, to laser control during recording data on an optical medium. A laser control method for dynamically adjusting laser power during recording data onto an optical disc comprises: recording normal data onto the optical disc according to an initial laser ... 03/01/07 - 20070047407 - System and method for writing power control during recording A recording system is provided, improving laser control when writing data on an optical recording medium. A data buffer stores data to be recorded, wherein the data is divided into first and second data units in response to a trigger signal, wherein the first data unit is followed by the ... 02/22/07 - 20070041294 - Optical recording method, evaluation indicator acquiring method, optical recording apparatus, micro cpu device, and computer program In certain inventive aspects there are provided an optical recording method, an evaluation indicator acquiring method, an optical recording apparatus, a CPU device, and a computer program, which can save a test time before recording information so as to record information for a short time. An irradiation condition suitable for ... 02/22/07 - 20070041293 - Method for optimizing write parameters of optical storage medium and recording device therefor A method for optimizing write parameters of an optical storage medium is provided. The method is adapted for a recording device using the optical storage medium. The method includes loading the optical storage medium having a test area into the recording device, determining a combination of an original write strategy ... 02/15/07 - 20070036052 - Optical recording method, optical recording apparatus, one-chip cpu device, and computer program There are provided an optical recording method, an optical recording apparatus, a one-chip CPU device, and a computer program, which can save a test time before recording information so as to record information for a short time. Reference data corresponding to a recording condition of a first recording layer, a ... 02/08/07 - 20070030778 - Optical disc apparatus and recording power determining method thereof A method of determining a recording power used to record information to an optical disc, includes carrying out test recording which records predetermined data to a predetermined area of the optical disc to determine the recording power, and recording predetermined data with a power equal to or more than the ... 02/01/07 - 20070025210 - Optical disc, optical disc device, optical disc recording device, and optical disc driving method An optical disc on which information can be recorded by recording light has a first recording layer (102) and a second recording layer (103) disposed behind the first recording layer as viewed by the recording light; the first recording layer and the second recording layer have respective power adjustment areas ... 01/25/07 - 20070019524 - Optical recording method and apparatus using this method Optical recording method and apparatus using this method. An optical recording method and recording apparatus using this method is described in which an optimum write power of a radiation beam in the apparatus is set by writing a series of test patterns on an optical recordable medium, forming a read ... 01/25/07 - 20070019523 - Writing power determining method and optical disc apparatus A recording power determining method comprises writing data consecutively into a plurality of test blocks of an optical disc while changing recording power in such a manner that the arrangement of recording power values is distributed over the arrangement of the test blocks, reproducing the information recorded in the test ... 01/11/07 - 20070008850 - Apparatus and method of optically recording data An apparatus and method for optically recording data may rapidly establish a high precision write strategy even when data is recorded at high speed. In the apparatus and method, test data including marks and spaces are recorded in an optical recording medium according to a predetermined write strategy. The recorded ... 01/04/07 - 20070002706 - Optical recording medium, recording/reproducing apparatus provided with optimum power control (opc), and method for controlling the same An optical disc apparatus is provided with optimum power control (OPC) to determine an optimum laser power needed for recording data on an optical disc. Such an apparatus comprises a controller to determine optimum writing power in such a way of re-establishing a new test zone when an erasing error ... 01/04/07 - 20070002705 - Write power calibrating apparatus and related method thereof A write power calibrating method and related apparatus for determining an optimum write power used for recording data onto a digital versatile disc is disclosed. The write power calibrating method includes recording a plurality of first data sets onto the digital versatile disc by utilizing a plurality of different write ... 12/28/06 - 20060291352 - Optical disc recording control method and optical disc recording control apparatus Before data is recorded in an optical disc, an optimum recording power is calculated in an inner peripheral part and in an outer peripheral part of the optical disc based on OPC learning. Before the data is recorded in the optical disc, the optimum recording power is calculated in at ... 12/28/06 - 20060291351 - Method for recording/reproducing dye-based recordable dvd medium and apparatus thereof A recording and reproducing method, wherein, on recording and reproduction of a recordable DVD medium, which has a recording layer containing an organic dye on a substrate having a guide groove with wobble, wherein linear velocity conditions for CLV recording is recorded on the substrate, recording starts at a linear ... 12/21/06 - 20060285460 - Method of managing optimum power control data in lead-in zone of high-density optical disc A method of managing optimum power control (OPC) data in a lead-in zone of a rewritable high-density optical disc, wherein an OPC back data zone is allocated in the lead-in zone of the rewritable high-density optical disc and OPC data is written in the OPC back data zone so that ... 12/21/06 - 20060285459 - Method and apparatus for determining an optimum power level A fast optimum power control method is disclosed, with a laser power level being adjusted in a predetermined sequence at an ADIP/ATIP frame of an optical recording medium. Jitter is measured at each ADIP/ATIP frame in order to obtain an average jitter value for that particular frame, and hence power ... 12/14/06 - 20060280080 - Apparatus and method for automatic power control An apparatus and method for automatic power control is disclosed. An optical recording apparatus utilizes a low-speed, peak-hold circuit to obtain and output a maximum of a front photodiode output signal during a predetermined window or plurality of windows of a total duration long enough to allow maximum peak-hold signal ... 12/14/06 - 20060280079 - Optical recording apparatus and method for searching for recording power of the same An optical recording apparatus uses a method of searching for a recording power, where the method includes: searching for a first optimum recording power; recording data on an optical disc at the first optimum recording power; determining whether recording environments are changed when a user desires to re-record the data ... 12/07/06 - 20060274616 - Opc-performing method restudying optical source drive characteristics after opc recording and opc measurement and optical recording/reproducing apparatus using the same An optical recording/reproducing apparatus and an OPC-performing method are provided for restudying drive characteristics of an optical source after performing OPC test recording and OPC measurement to ensure accurate optimum power control (OPC) for recording data on an optical disc, particularly, when the drive characteristics vary according to temperature changes ... 11/23/06 - 20060262683 - Optimum power calibration method and optical disk drive An optimum power calibration method is provided and is implemented for writing a rewritable optical storage medium including a power calibration area. The method includes the steps of determining whether the power calibration area is recorded with data, erasing the entire power calibration area when the power calibration area is ... 11/16/06 - 20060256685 - Recording system for light-sensitive sheet The present invention relates to a system for recording a datum onto a pixel on a light-sensitive sheet. The main component of the system is a recording unit, which further includes a light-emitting device and at least one light-guiding device. Once the light-emitting device emits a light, the light enters ... 10/26/06 - 20060239153 - Methods and circuits for automatic power control A method of controlling write power for recording data into sectors of an optical storage medium. The optical storage medium comprises a plurality of sectors, each having a header, a data recording area, and a redundant area. The method comprises sampling a write power output from an optical emitter when ... 10/19/06 - 20060233076 - Information storage medium An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition. Optimal power control areas in odd-numbered and even-numbered information storage layers viewed from a direction in which light is incident upon the information ... 10/19/06 - 20060233075 - Methods of calibrating servo signal bias for optical disc Read focus error (FE) bias is calibrated on an embossed area of the optical disc. OPC is then performed with the calibrated servo signal bias to obtain a write power level. Data are written on and read from the optical disc based on the write power level and the calibrated ... 10/12/06 - 20060227685 - Information storage medium and method and apparatus for recording/reproducing data on/from the same An apparatus for recording data on an information storage medium including a plurality of recording layers, each having a user data area, on which data is recordable by a pickup. Data is recorded in the order of recording layers from closest to farthest from the pickup, and a recordable region ... 09/28/06 - 20060215517 - Determination of adaptive writing strategy for recording data onto optical information recording medium having full calibration area The invention is to provide a method for determining an adaptive writing strategy and for controlling, according to the adaptive writing strategy, an optical information recording apparatus to record data onto an optical information recording medium. According to a preferred embodiment of the invention, first, a calibration area of the ... 09/28/06 - 20060215516 - Optical information recording apparatus A rewritable optical disc has a laminate of first and second recording layers with first and second trial write areas respectively. Sections of the first trial write area are sequentially used in an order accorded with a direction from an outer disc edge toward an inner disc edge. Sections of ... 09/28/06 - 20060215515 - Information recording/reproducing method and information recording/reproducing apparatus Random data is recorded on a higher-level recording layer and then, an optimum recording power is determined on a lower-level recording layer corresponding to the higher-level recording layer. Accordingly, it is necessary to record random data in more areas on the higher-level recording layer than areas for determining the optimum ... 09/28/06 - 20060215514 - Optical recording equipment In a recording system in which linear velocity during the write operation changes, it is difficult to obtain write strategy parameters in every linear velocity with trial writing. The optimum write strategy condition under the high speed or low speed operation is obtained with trial writing or the like and ... 09/28/06 - 20060215513 - Optical recording method and optical recording device The present invention relates to an optical recording method for recording data on an optical disc by using a laser beam. When the optical disc is inserted into an optical recording device (step S1), a test writing area PCA (Power Calibration Area) that can be used for an OPC (Optimum ... 09/21/06 - 20060209651 - Optical information recording apparatus, apparatus and method for setting write strategy, and computer program therefor An optical information recording apparatus, an apparatus and method for setting a write strategy, and a computer program therefor are provided. In the optical information recording apparatus, a write strategy corresponding to different linear velocities of an optical recording medium is set, and, based on the set write strategy, a ... 09/14/06 - 20060203659 - Information storage medium and method and apparatus for recording and/or reproducing data An information storage medium and an apparatus for recording and/or reproducing the information storage medium capable of controlling optimal recording power without an influence of an optimal power control (OPC) area in a layer upon an OPC area in a different layer. The information storage medium includes at least one ... 09/14/06 - 20060203658 - Information storage medium An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition. Optimal power control areas in odd-numbered and even-numbered information storage layers viewed from a direction in which light is incident upon the information ... 09/14/06 - 20060203657 - Information storage medium and method and apparatus for recording and/or reproducing data An information storage medium and an apparatus for recording and/or reproducing the information storage medium capable of controlling optimal recording power without an influence of an optimal power control (OPC) area in a layer upon an OPC area in a different layer. The information storage medium includes at least one ... 09/14/06 - 20060203656 - Information storage medium and method and apparatus for recording and/or reproducing data An information storage medium and an apparatus for recording and/or reproducing the information storage medium capable of controlling optimal recording power without an influence of an optimal power control (OPC) area in a layer upon an OPC area in a different layer. The information storage medium includes at least one ... 09/14/06 - 20060203655 - Information storage medium An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition. Optimal power control areas in odd-numbered and even-numbered information storage layers viewed from a direction in which light is incident upon the information ... 09/14/06 - 20060203654 - Information storage medium An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition, wherein OPC areas in odd-numbered and even-numbered information storage layers are disposed not to face each other and not to contact each other, ... 09/14/06 - 20060203653 - Information storage medium An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition, wherein OPC areas in odd-numbered and even-numbered information storage layers are disposed not to face each other and not to contact each other, ... 09/14/06 - 20060203652 - Information storage medium An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition, wherein OPC areas in odd-numbered and even-numbered information storage layers are disposed not to face each other and not to contact each other, ... 09/14/06 - 20060203651 - Information storage medium and method and apparatus for recording/reproducing data on/from the same An information storage medium on which data is recorded after performing optimum power control (OPC) and a method and apparatus to record/reproduce data on/from the information storage medium, wherein the recordable information storage medium has a plurality of recording layers and a pickup irradiates a beam onto the information storage ... 09/14/06 - 20060203650 - Information storage medium and method and apparatus for recording/reproducing data on/from the same An information storage medium on which data is recorded after performing optimum power control (OPC) and a method and apparatus to record/reproduce data on/from the information storage medium, wherein the recordable information storage medium has a plurality of recording layers and a pickup irradiates a beam onto the information storage ... 09/14/06 - 20060203649 - Information storage medium and method and apparatus for recording/reproducing data on/from the same An information storage medium on which data is recorded after performing optimum power control (OPC) and a method and apparatus to record/reproduce data on/from the information storage medium, wherein the recordable information storage medium has a plurality of recording layers and a pickup irradiates a beam onto the information storage ... 09/14/06 - 20060203648 - Information storage medium and method and apparatus for recording/reproducing data on/from the same A method of recording data on an information storage medium including a plurality of recording layers, each having a user data area, on which data is recordable by a pickup. Data is recorded in the order of recording layers from a layer closest to the pickup to a layer farthest ... 09/14/06 - 20060203647 - Apparatus and method for improving deviation of optimum power calibration (opc) A method of improving a problem of a deviation of an optimum recording optical power, which is capable of reducing deviation of OPC (Optical Power Calibration) power and shortening a Lead-in time by previously setting an area in which an OPC operation may be conducted and erasing the area with ... 09/14/06 - 20060203646 - Optical information recording apparatus, optical information recording method, and signal processing circuit An optical information recording apparatus corrects a recording condition for an optical medium having a difference in recording property between the inner and outer peripheries in real time. The optical information recording apparatus obtains an RF signal by using a playback sub beam and retrieves a portion of the RF ... 09/14/06 - 20060203645 - Apparatus and method of determining a power parameter for writing/erasing information on an optical medium The invention relates to an apparatus and method of determining a value of a write/erase power parameter (Ptarget) for writing/erasing information on an optical recording medium by means of a radiation beam. The method is based on the curve-fitting of a function by a set of parameters a-b-c, said function ... 09/07/06 - 20060198262 - Optical recording apparatus and optical recording method controlling laser power for disc overwriting An optical recording apparatus performs an OPC operation with a designated target modulation. A reproduction signal detecting circuit measures, in response to the OPC operation, jitter, amplitude of the reproduction signal and the like. An asymmetry detecting circuit calculates an asymmetry value of the optical disc from the measurements. An ... 08/31/06 - 20060193223 - Method for compensating writing power in optical disc device Embodiments of methods and apparatus for compensating writing power in an optical disc device can compensate selected (e.g., OPC) writing power. When a writing operation is temporarily suspended (e.g., buffer under-run) during the writing operation, writing power is compensated in real time on the basis of the β value detected ... 08/17/06 - 20060181988 - Method and apparatus for determining the optimal write power and optical recording medium for use by such method and apparatus A method and an optical recording apparatus for determining the optimal write power level at a high recording speed by an OPC-procedure are described. The method involves performing an OPC-procedure at a lower recording speed and subsequently scaling the obtained results to a higher recording speed. ... 08/17/06 - 20060181987 - Method and apparatus for determining the optimal laser power in recordable optical storage systems The invention relates to a method of reducing the area on an optical medium used by an optimum write parameter control procedure (OPC) and to an apparatus for carrying out the method. The method makes use of a reference data pattern written using a reference set of write parameters, and ... 08/10/06 - 20060176793 - Test writing method and information recording device The object of the present invention is to provide a test writing method for seeking the optimum write power correctly and in a short time under a high speed recording condition in a test writing method and an information recording device for recording information by forming different marks from the ... 07/27/06 - 20060164940 - Optical information recording/reproducing device and recording light intensity learning method There is provided an optical information recording/reproducing apparatus that learns a recording power so as to determine an optimum recording condition under which the recording power is prevented from being excessively high and waveform distortion is reduced. A recording power variation circuit (12) sets variably a recording power Po in ... 07/13/06 - 20060153035 - Optical-disc drive apparatus and method of deciding optimum recording powers of laser beam In cases where forthcoming recording of information on a multi-layer optical disc is first time one, test signals are recorded on trial write areas in first and second recording layers before being reproduced. First-time optimum recording powers of the laser beam for the respective first and second recording layers are ... 07/06/06 - 20060146673 - Recording power determination method and device A recording power determination method for determining a recording power of an optical beam for recording data on an information storage medium includes the steps of recording test data on the information storage medium at a plurality of test recording powers; reading the test data recorded at each test recording ... 07/06/06 - 20060146672 - Optical disk having divided write strategy tuning areas, optical recording/reproducing apparatus and method using the same An optical recording/reproducing apparatus includes an optical pickup unit configured to scan an optical disk with an optical signal to record and reproduce data. A power tuning unit is configured to scan a first track with the optical signal to record a first test data to the first track, while ... 06/15/06 - 20060126467 - Optimal recording apparatus and method for determining an optical recording condition An optimal recording apparatus and method for optical recording media are disclosed which are capable of recording data on the optical recording medium under optimum conditions in an optical recording/reproducing apparatus. In accordance with the optimal recording apparatus and method, a reference power value recorded on an optical recording medium ... 05/04/06 - 20060092793 - Laser power calibration in an optical disc drive Various systems, methods, and programs embodied on a computer-readable medium are provided for calibrating a laser power in an optical disc drive. In one embodiment, a plurality of marked segments of a calibration pattern are created on a label surface of an optical disc with a laser in the optical ... 05/04/06 - 20060092792 - Laser power calibration in an optical disc drive Various systems, methods, and programs embodied on a computer-readable medium are provided for calibrating a laser power in an optical disc drive. In one embodiment, a range of reflectivity of an optical disc in the optical disc drive is established. A calibration pattern of marked segments is written to the ... 04/13/06 - 20060077837 - Device and method of recording information on an optical disc A device for recording information on an optical disc so as to improve the recording quality of the information when a recording operation has just started. The recording device includes a luminous element radiating a light for recording information on the optical disc; a radiation intensity controller constantly controlling an ... 04/13/06 - 20060077836 - Method for determining optimum recording power through detecting whether rf top channel signal is correct A method for correctly determining optimum recording power through detecting whether a radio frequency (RF) top channel signal is correct, including determining a certain location for performing optimum power control (OPC) by checking a counter area in a power calibration area (PCA) in an optical recording medium, and recording an ... 04/13/06 - 20060077835 - Optical disk apparatus An optical disk apparatus has a highly accurate trial writing function corresponding to a PRML system and copes with a bad jitter of a 2 Tw mark in order to realize an optical disk, the recording/reproduction of which is enabled in both a DVD and a Blu-ray Disc by a ... 04/06/06 - 20060072410 - Laser power selecting method, information recording medium, and information recording device A laser power selecting method includes the steps of recording an asymmetry measuring recording pattern in an optical disk trial-writing area while a laser power is being changed, reproducing a signal from the trial-writing area to calculate an asymmetry value from the waveform of the reproduced signal, determining the change ... 04/06/06 - 20060072409 - Optical recording medium er of the laser beam at which the fourth parameter was obtained as an optimum recording power when the fourth parameter is equal to or lower than the critical parameter. ... 03/23/06 - 20060062117 - Optical recording medium, and recording and reproducing method and recording and reproducing apparatus An object is to provide a recording and reproducing method of a dyestuff-based, write-once DVD medium which can obtain a good recording waveform at a time of carrying out high linear speed recording. To this end, there are provided a recording and reproducing method and a recording and reproducing apparatus ... 02/02/06 - 20060023592 - Optical disk device recording data on a recordable or rewritable optical disk by setting a recording velocity and a recording power for each of zones on an optical disk An optical disk device records data on a recordable or rewritable optical disk. The optical disk device comprises zone storing means for preliminarily storing locations of a plurality of zones set by dividing a recordable or rewritable area of the optical disk from an inner periphery thereof to an outer ... 02/02/06 - 20060023591 - Test-write method, information recording method, and information recording apparatus A test-write method for accurately and quickly determining recording conditions, and an apparatus suitable therefor. In a 2T-based strategy, recording pulse conditions are determined by separately test-writing an even-number length mark and an odd-number length mark, and then the relative positions of the even-number length mark and the odd-number length ... 01/26/06 - 20060018226 - Optical information recording apparatus and method and processing circuit A condition of a recording pulse comprising a top pulse and a following pulse is determined in a predetermined order. In some embodiments, an mT pulse condition is first determined by test recordings with various power and pulse conditions, involving an inspection of recording quality; then an m′T/(n−m)T ratio is ... 01/26/06 - 20060018225 - Optical disc device In the optical disc apparatus according to the present invention, the CPU 113 is operated to execute a control program stored in the ROM 112 to calculate a reproduction time at the time point when the power supply was turned off based on parameters after reading out from the DRAM ... 01/19/06 - 20060013090 - Information recording method, recording optical disc, and information recording/recording/reproducing apparatus The present invention discloses an optical information recording method of an optical information recording and reproduction device that uses a semiconductor laser to record or reproduce data in an optical disk. Based on a detected value of an optical path difference of the optical disk, a calculated value of optimum ... 01/19/06 - 20060013089 - Optical recording medium data, comparing the critical parameter and the fourth parameter, and determining the recording power of the laser beam at which the fourth parameter was obtained as an optimum recording power when the fourth parameter is equal to or lower than the critical parameter. ... 01/12/06 - 20060007824 - Disc reproduction device The present invention provides a disk playback device including a laser drive circuit 6 capable of feeding a drive signal to an optical head 5 and adjusting a power of a laser beam irradiated by the optical head 5 and a control circuit 7 for detecting an error rate of ... 12/15/05 - 20050276188 - Information storage medium and method and apparatus for recording/reproducing data on/from the same An information storage medium on which data is recorded after performing optimum power control (OPC) and a method and apparatus to record/reproduce data on/from the information storage medium, wherein the recordable information storage medium has a plurality of recording layers and a pickup irradiates a beam onto the information storage ... 12/15/05 - 20050276187 - Method of allocating areas in optical disc, data recording and/or reproducing apparatus adopting the same, and optical disc therefor Recording areas in an optical disc having a plurality of recording layers allocated so each recording layer includes a data area for recording data, a connection area in which a predetermined pattern of data for indicating that no data area is recorded therein, and a remaining area, wherein a size ... 12/08/05 - 20050270939 - Optical disk recording/reproducing method, optical disk recording/reproducing apparatus and optical disk In an optical disk system using a PRML identification system, a method for deriving an optimum recording wave in a short period of time is provided. Parameters of the recording wave are adjusted by using an evaluation value obtained by a signal evaluation method which is suitable for the PRML ... 12/01/05 - 20050265184 - Optical information recording apparatus An optical information recording apparatus is suitable for detection of deviation between a strategy and a record pattern. Test record is performed on an optical recordable medium using a predetermined strategy. A binarization signal that is obtained by reproducing the test record result is counted. A pit length and a ... 12/01/05 - 20050265183 - Optical information recording apparatus There is provided an effective inspection technique of recording quality decided by a combination of a drive and a media. A standard media as a quality standard for various media is recorded and reproduced for each drive, thresholds obtained by multiplying a characteristic value obtained as a result of the ... 12/01/05 - 20050265182 - Method for generating control parameters for optimum write power and apparatus therefor In a method and apparatus for generating optimum write power, a control unit controls a write voltage generating unit to generate sequentially write voltages of different levels to drive an optical read/write head to generate different write powers so as to write data on a plurality of write intervals of ... 11/10/05 - 20050249075 - Commercial/non-commercial medium test In certain embodiments, methods and apparatus are presented for testing a medium to determine whether it was non-commercially created involve determining if a drive comprises a recordable drive; if the drive comprises a recordable drive: determining whether a medium comprises a closed medium. If the medium does not comprise a ... 11/10/05 - 20050249074 - Information record apparatus and method, and computer program product An information record apparatus includes a recording device for recording information into a record medium, where pre-information for controlling a recording of the information is recorded in advance, by irradiating the record medium with a laser beam whose power is varied depending on a driving pulse; a first controlling device ... 11/03/05 - 20050243670 - Optical recording apparatus Several drives individually carry out recording and playback with a reference medium that serves as a reference for quality for various media, obtaining characteristic values. The characteristic values are multiplied by a predetermined coefficient to obtain thresholds, and the thresholds are stored in predetermined storage areas of the respective drives. ... 10/27/05 - 20050237885 - Laser power control method of optical recording/reproducing apparatus A method for controlling laser power of an optical recording/reproducing apparatus includes the following steps. Firstly, a writing procedure is performed with an initial electric power level supplied to a laser module of the optical recording/reproducing apparatus. Then, an optimum power calibration (OPC) procedure is performed to determine a first ... 10/27/05 - 20050237884 - Information recording apparatus and method, and computer program product An recording apparatus is provided with: an recording device for recording information onto an recording medium by irradiating laser light; and a measuring device for measuring reproduction quality of the information recorded in a area adjacent to the information to be additionally recorded. The information recording device additionally records the ... 10/27/05 - 20050237883 - Information storage medium and method and apparatus for recording/reproducing data on/from the same An information storage medium and a method and apparatus for recording/reproducing data on/from the information storage medium. The information storage medium includes a plurality of recording layers, each having a user data area, on which data can be recorded by a pickup. Data is recorded in the order of recording ... 10/20/05 - 20050232108 - Information recording medium, recording apparatus, reproduction apparatus, recording method, and reproduction method An information recording medium is provided, which comprises a plurality of recording layers and a first disc information area for storing parameters relating to access to the plurality of recording layers and formats relating to the plurality of recording layer. The first disc information area is provided in a first ... 10/20/05 - 20050232107 - Optical disc apparatus and recording power determining method thereof A method of determining a recording power used to record information to an optical disc, includes carrying out test recording which records predetermined data to a predetermined area of the optical disc to determine the recording power, and recording predetermined data with a power equal to or more than the ... 10/20/05 - 20050232106 - Method and device for determining a set of recording pulse series parameters for optical carrier recording and optical record carrier A method is described for determining a set of recording pulse series parameters for recording information on an optical record carrier. First a series of test patterns is written on the record carrier with a values of the parameters. On reading the test patterns, the jitter values of each read ... 10/13/05 - 20050226116 - Optical recording medium, and recording method and recording apparatus for optical recording medium In an optical recording medium having a plurality of recording layers on which information can be recorded by irradiating a laser beam from one side thereof, an optimum recording power to each of the recording layers can be determined. The optical recording medium has a plurality of recording layers on ... 09/29/05 - 20050213452 - Optical disc device The present invention aims to smoothly and adequately adjust recording laser power while an increase in processing load during recording is suppressed. When a recording operation start request is received, OPC is executed with reference to a target β value (βt) of a disc to set recording laser power Pws. ... 09/29/05 - 20050213451 - Optical disc device Provided is an optical disc device in which adjustment precision of recording laser power is improved without complication of a processing sequence during recording operation. In response to a recording start instruction, OPC is executed using an inner disc drive zone to set an initial value of recording laser power ... 09/29/05 - 20050213450 - Optical disk recording apparatus and program In an optical disk recording apparatus, a monitor monitors a recording power of a laser light. A laser control circuit enables a laser diode to perform test recording while using the monitor to monitor the recording power of the laser light and while controlling a laser drive voltage, so that ... 09/22/05 - 20050207299 - Disk drive device and recording power setting method To realize a disk drive device capable of setting optimum recording power by obtaining amplitude information of a reproduced signal even when low recording power is used. A disk drive device for recording and reproducing data on/from an optical disk is provided with: a Viterbi decoding means for performing Viterbi ... 09/15/05 - 20050201235 - Information storage medium capable of controlling optimal recording power, and method and apparatus for recording/reproducing data on the same An information storage medium of a recording/reproducing apparatus on which data may be recorded with optimal recording power, and a method and apparatus to record/reproduce data on the information storage medium. The information storage medium includes an optimal power control area composed of a plurality of unit areas on which ... 09/08/05 - 20050195711 - Optical storage device and method for data recording A method for data recording in a data area of an optical storage medium. The method determines a start position of the data area for data recording, determines a test position of the data area according to the start position, performs an optimum power calibration (OPC) procedure to determine an ... 09/01/05 - 20050190673 - Optical recording medium recording control method, recording control device and inspection method An evaluation pattern, for evaluating the extent of occurrence of thermal interference, is recorded with recording power being varied stepwise from a low recording power to a high recording power. This test-written evaluation pattern is played back, and levels of occurrence of thermal interference are quantified for each recording power ... 08/11/05 - 20050174906 - Optical information recording method, optical information recording device, and optical information recording medium The present invention provides an optical information recording apparatus and method capable of effectively determining appropriate recording parameters in a short time with favorable efficiency, when recording information onto an optical disk having different information recording conditions and information recording characteristics. An information recording condition or an information recording characteristic ... 08/04/05 - 20050169140 - Optical recording condition setting method, optical recording/reproducing device, control program, and recording medium In order to provide an optical recording condition setting method which reduces effects from uneven properties of a rewritable or recordable optical disk and an optical recording/reproducing device, and to provide an optical recording/reproducing device which executes the method, (i) a test writing is carried out with respect to an ... 08/04/05 - 20050169139 - Recording method, recording apparatus, and signal processing circuit for recording information on optical recording medium In a recording method or apparatus, in order to set an optimal recording condition by a minimal number of times of testing, test recording is carried out while changing power and pulse width of recording pulses in a stepwise manner. Conditions for the test recording are concentrated in a region ... 07/28/05 - 20050163008 - Laser power adjustment method and optical recording and reproduction apparatus In order to set optimum laser power for a disk smoothly and appropriately with a small number of times of test writing, an integrated value Sn is obtained from each kind of laser power Pwn set for the test writing and the modulation factor m(Pwn) of a reflection light intensity ... 07/28/05 - 20050163007 - Method and apparatus for controlling recording laser power Test signals are sequentially generated. A laser beam inclusive of the generated test signals is applied to a preset test recording area in a disc-shaped recording medium to record the generated test signals thereon. A recording power of the applied laser beam is changed stepwise from a lowest level to ... 07/21/05 - 20050157620 - Method for optically recording information and device for optically recording information by the same A method by which, in an optical disk recording and reproducing device, the time required for a test recording performed prior to an actual information recording can be reduced according to characteristics of an optical disk. A random pattern signal is transmitted from a random pattern signal generating circuit 3 ... 07/14/05 - 20050152248 - Optical recording method and apparatus using this method An optical recording method and recording apparatus using this method is described in which an optimum write power of a radiation beam in the apparatus is set by writing a series of test patterns on an optical recordable medium, forming a read signal from the patterns, reading a preset value ... 07/14/05 - 20050152247 - Disk drive A disk apparatus includes a DSP (Digital Signal Processor), and the DSP performs a test writing and a test reading on a magneto-optical disk rotated in a ZCLV system to obtain an optimal reproduction laser power value (reference reproduction laser power value) “Pt” at a linear velocity of 30 Mbps ... 07/07/05 - 20050147007 - Recording condition setting method and information recorder using same A test pattern including a first test mark which is one unit-record-length longer than a shortest mark among modulating codes and a second test mark which is two or more unit-record-lengths longer than the shortest mark is recorded under a plurality of recording conditions (step S2). The recorded test pattern ... 06/30/05 - 20050141377 - Optical disc medium, and apparatus and method for recording data on the same An optical disc medium includes a system area and a data area. The system area includes a recording operation test area to which a trial recording operation is carried out to determine an optimal record condition when data is recorded in the data area; a record control data area where ... 06/23/05 - 20050135212 - Optical recording method and optical recording device A reverse pattern is formed in a track adjacent to a specified track on an optical recording medium with a predetermined light beam capable of writing large recording marks. Thereafter, a normal pattern is formed in an area, of an adjacent track, which is adjacent to the reverse pattern in ... 06/16/05 - 20050128911 - Recording/reproduction apparatus, recording/reproduction method, program, and recording power adjustment apparatus A recording/reproduction apparatus, comprising a first recording section for recording test information onto a medium using at least one recording power, a reproduction section for reproducing at least one test signal indicating the test information from the medium, and a second recording section for recording information onto the medium using ... 06/16/05 - 20050128910 - Method for determining a threshold write-in power of a compact disc and related compact disc drive A method for determining a threshold write-in power of a compact disc (CD) includes the following steps: (a) recording M test data into M sectors of an outer area of the CD with a pickup by emitting laser beams of a variety of distinct test powers, (b) reading the test ... 06/16/05 - 20050128909 - Optical disk recording/reproducing method and recording/reproducing apparatus using the same An optical disk recording/reproducing method and apparatus capable of constantly forming an optimum mark region while appropriately correcting recording conditions. A sample hold circuit detects and holds the level of a TPP signal to output a state monitoring signal. A reference level setting portion holds the level of the state ... 06/09/05 - 20050122868 - Method and apparatus for establishing manufacturer-specific test writing parameters for writing of writable optical storage media A method and an apparatus establish manufacturer-specific test writing parameters for writing of a writable optical storage media in accordance with the media manufacturers, which are experimentally determined and stored into a certain storing unit; determine an optimum writing light power based on the determined optimum writing parameters; and write ... 06/09/05 - 20050122867 - Optical disk and optical disk drive device An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially ... 06/02/05 - 20050117481 - Method and device for recording information on optical information recording medium and the medium itself A method for recording information on an optical information recording medium 1, 11 having a plurality of recording layers for recording, reproducing or erasing data by irradiating a laser beam from one side, includes a temporary pulse condition determination step (S502), a test area reflected light measurement step (S502), a ... 06/02/05 - 20050117480 - Method for performing optimal recording power calibration in recorder and recording medium therefor A recording medium and method for controlling a recording operation using at least two OPC information obtained from performing at least two OPC operations for the same drive. The method includes comparing the two PC information with each other, and controlling a recording operation of the recording medium based on ... 06/02/05 - 20050117479 - Method for performing optimal recording power calibration in recorder and recording medium therefor A recording medium and a method and apparatus for controlling an optimal recording power calibration (OPC) are provided. The method includes reading a last time information recorded on the recording medium, comparing the read time information with a current time information, and selectively performing an OPC operation based on the ... 06/02/05 - 20050117478 - Method for reproducing data and an apparatus for recording and reproducing data A method for reproducing data according to the present invention is adapted for reproducing data recorded in an optical recording disc including a multi-layered body formed by forming a decomposition reaction layer containing noble metal oxide as a primary component and a light absorption layer so as to sandwich a ... ### FreshPatents.com Support |