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263 条记录 (耗时 0.019 秒)

    ROTARY HEAD DATA STORAGE AND RETRIEVAL SYSTEM AND METHOD FOR DATA VERIFICATION
    1.
    发明公开
    ROTARY HEAD DATA STORAGE AND RETRIEVAL SYSTEM AND METHOD FOR DATA VERIFICATION 审中-公开
    系统有关测试数据存储和调用炮塔资料与方法

    公开(公告)号：EP2917912A1

    公开(公告)日：2015-09-16

    申请号：EP13792203.5

    申请日：2013-11-05

    申请人： Oracle International Corporation

    发明人： MADISON, Carl ,  OSTWALD, Timothy C.

    IPC分类号： G11B7/0045 ,  G11B7/006

    CPC分类号： G11B20/1879 ,  G11B7/0031 ,  G11B7/00458 ,  G11B7/006 ,  G11B7/14

    摘要： A data storage and retrieval system includes a head carriage unit adapted for rotational motion and having multiple heads disposed at a working surface. The system also includes a tape drive unit configured to move a tape media past the working surface of the head carriage unit, the tape media having a width approximately equal to a width of the working surface. As the head carriage unit rotates and the tape moves past the working surface, a first head is configured to write a data track to the tape and a second head is configured to thereafter read the data track, where data read by the second head is for use in verifying data integrity and performing error correction.

    OPTICAL RECORDING METHOD, OPTICAL RECORDING DEVICE, MASTER MEDIUM EXPOSURE DEVICE, OPTICAL INFORMATION RECORDING MEDIUM, AND REPRODUCING METHOD
    3.
    发明公开
    OPTICAL RECORDING METHOD, OPTICAL RECORDING DEVICE, MASTER MEDIUM EXPOSURE DEVICE, OPTICAL INFORMATION RECORDING MEDIUM, AND REPRODUCING METHOD 审中-公开
    光记录媒体，光学记录设备，主媒体曝光装置，记录介质和光信息再现

    公开(公告)号：EP2346033A4

    公开(公告)日：2013-12-25

    申请号：EP09818944

    申请日：2009-10-05

    申请人： PANASONIC CORP

    IPC分类号： G11B7/125 ,  G11B7/006 ,  G11B7/26 ,  G11B20/10

    CPC分类号： G11B7/0062 ,  G11B7/261 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B2007/0013

    摘要： An optical recording method for recording information by irradiating an optical disc medium with a modulated write pulse train of laser light variable over a plurality of power levels such that a plurality of marks are formed on the optical disc medium, edge positions of each of the marks and a space between adjacent two of the marks being utilized for recording of the information. The optical recording method includes the steps of: encoding record data to generate encoded data which is a combination of marks and spaces; classifying the encoded data according to a combination of a mark length of the mark, a space length of a first space that immediately precedes the mark, and a space length of a second space that immediately succeeds the mark; generating a write pulse train for forming the mark, in which at least one of a leading end edge position, a trailing end edge position and a pulse width of the write pulse train is changed according to a classification result; and irradiating the optical disc medium with the write pulse train generated to form the plurality of marks on the optical disc medium.

    Recording method for phase-change recording medium
    4.
    发明授权
    Recording method for phase-change recording medium 有权
    记录方法，用于相变型记录介质

    公开(公告)号：EP1117094B1

    公开(公告)日：2012-11-21

    申请号：EP01100223.5

    申请日：2001-01-02

    申请人： Mitsubishi Kagaku Media Co., Ltd.

    发明人： Ohno, Takashi, c/o Yokohama Research Center

    IPC分类号： G11B7/006 ,  G11B7/126 ,  G11B7/243

    CPC分类号： G11B7/0062 ,  G11B7/00454 ,  G11B7/006 ,  G11B7/126 ,  G11B7/243 ,  G11B2007/0013 ,  G11B2007/24314 ,  G11B2007/24316

    摘要： In a recording method for a rewritable optical recording medium, immediately before a prospective leading pulse (1) that is a time section where recording light of write power Pw irradiates a phase-change recording layer for the first time as a front low-power energy irradiating step, light of bias power Pb irradiates the phase-change recording layer for a first set time length yT as a preceding low-power energy irradiation step. And immediately after the leading pulse (1), the light of bias power Pb irradiates the phase-change recording layer for a set time length xT as a succeeding low-power energy irradiation step. The relation between x and y satisfies : 0.95 ‰¦ x+0.7ˆ—y ‰¦ 2.5. The high-power energy beam irradiates the recording medium in such a manner that a period of irradiation for pulses subsequent to the leading pulse (1) is in a range of from 0.5T to 2.5T. The result is that it is possible to facilitate forming/erasing amorphous marks even in a phase-change recording medium devoid of a reflective layer, without any risk of narrowing the range of effective crystallization speeds.

    Optical disc drive and method of controlling the same
    7.
    发明公开
    Optical disc drive and method of controlling the same 审中-公开
    Optisches Plattenlaufwerk und Steuerverfahrendafür

    公开(公告)号：EP2117002A2

    公开(公告)日：2009-11-11

    申请号：EP09154887.5

    申请日：2009-03-11

    申请人： Samsung Electronics Co., Ltd.

    发明人： Yemialyanau, Valery

    IPC分类号： G11B7/125 ,  G11B7/007 ,  G11B7/006

    CPC分类号： G11B7/1267 ,  G11B7/0062 ,  G11B7/00736 ,  G11B7/1263

    摘要： An optical disc drive, which is capable of stably controlling a laser diode without having an influence on other data by recording a test pattern in at least one of a run-in area and a run-out area of a recording unit block and detecting the characteristics of the laser diode, and a method of controlling the same. The method of controlling an optical disc drive can include recording a test pattern in at least one of a header and a tail of a recording unit block including a data area having a predetermined size, detecting input/output characteristics of a laser diode via the recorded test pattern, and controlling the laser diode such that the laser diode generates a target output on the basis of the detected input/output characteristics.

    摘要翻译： 一种光盘驱动器，其能够通过将测试图案记录在记录单元块的输入区域和偏离区域中的至少一个中来稳定地控制激光二极管而不影响其他数据，并且检测 激光二极管的特性及其控制方法。 控制光盘驱动器的方法可以包括将测试图案记录在包括具有预定尺寸的数据区的记录单元块的标题和尾部中的至少一个中，通过记录的方式检测激光二极管的输入/输出特性 测试图案，以及控制激光二极管，使得激光二极管基于检测到的输入/输出特性产生目标输出。

    RECORDING POWER DECISION METHOD AND DEVICE
    9.
    发明公开
    RECORDING POWER DECISION METHOD AND DEVICE 有权
    创记录的业绩裁决和设置

    公开(公告)号：EP1710790A4

    公开(公告)日：2009-05-06

    申请号：EP05709414

    申请日：2005-01-27

    申请人： PANASONIC CORP

    发明人： SHOJI MAMORU ,  HINO YASUMORI ,  SATO TAKAHIRO ,  OKADA YUU

    IPC分类号： G11B7/0045 ,  G11B7/006 ,  G11B7/125

    CPC分类号： G11B7/1267 ,  G11B7/00456 ,  G11B7/0062

    摘要： 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 power, generating a signal, and measuring a modulation factor of the signal corresponding to each test recording power; calculating a product of an n'th power of each test recording power and the corresponding modulation factor, thereby obtaining a plurality of products corresponding to the plurality of test recording powers, where n is a value of exponent and is a real number other than 1; calculating a first recording power based on the correlation between the plurality of test recording powers and the plurality of products; and calculating the recording power based on the first recording power.