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41 条记录 (耗时 0.016 秒)

    Adaptive writing method and circuit for a high-density optical recording apparatus
    2.
    发明公开
    Adaptive writing method and circuit for a high-density optical recording apparatus 审中-公开
    自适应Schreibvorrichtung und -Schaltungfürein hochdichtes optischesAufzeichnungsgerät

    公开(公告)号：EP1282122A2

    公开(公告)日：2003-02-05

    申请号：EP02079349.3

    申请日：1999-07-21

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Seo, Jin-gyo ,  Joo, Seong-si ,  Yoon, Du-seop ,  Roh, Myung-do ,  Ahn, Yong-jin ,  Kim, Seoung-soo ,  Lee, Kyung-geun ,  Cho, Myeong-ho ,  Yang, Chang-jin Digital Media R&D Center, ,  Kim, Jong-kyu, 306-1703 Daewoo Apt. ,  Ko, Sung-ro ,  Ohtsuka, Tatsuhiro

    IPC分类号： G11B7/125 ,  G11B7/0045

    CPC分类号： G11B7/0062 ,  G11B7/0045 ,  G11B7/00718 ,  G11B7/126 ,  G11B7/1263 ,  G11B20/10009 ,  G11B20/1403

    摘要： An adaptive writing method for a high-density optical recording apparatus and a circuit thereof are provided. The circuit includes a discriminator (102) for discriminating the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces, a generator (104,108) for controlling the waveform of the write pulse in accordance with the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces to generate an adaptive write pulse, and a driver (110) for driving the light source by converting the adaptive write pulse into a current signal in accordance with driving power levels for the respective channels. The widths of the first and/or last pulses of a write pulse waveform are varied in accordance with the magnitude of the present mark of input NRZI data and the magnitude of the leading and/or trailing spaces, thereby minimizing jitter to enhance system reliability and performance.

    摘要翻译： 提供了一种用于高密度光学记录装置及其电路的自适应写入方法。 该电路包括用于识别输入数据的当前标记的大小和前导和/或尾随空格的大小的鉴别器（102），用于根据幅度控制写入脉冲的波形的发生器（104,108） 输入数据的当前标记和前导空格和/或尾部空格的大小以产生自适应写入脉冲;以及驱动器（110），用于通过将自适应写入脉冲转换成电流信号来驱动光源 驱动各个通道的功率电平。 写入脉冲波形的第一和/或最后脉冲的宽度根据输入NRZI数据的当前标记的大小和前导和/或尾随空格的大小而变化，从而最小化抖动以增强系统可靠性， 性能。

    Optical recording apparatus and method for searching data recording locations by controlling tracking level
    6.
    发明公开
    Optical recording apparatus and method for searching data recording locations by controlling tracking level 有权
    光学记录装置和数据存储位置的方法通过控制跟踪级别搜索

    公开(公告)号：EP1635339A2

    公开(公告)日：2006-03-15

    申请号：EP05255457.3

    申请日：2005-09-07

    申请人： Samsung Electronics Co., Ltd.

    发明人： Kim, Min-seok ,  Ahn, Yong-jin

    IPC分类号： G11B7/085

    CPC分类号： G11B7/08517 ,  G11B7/0045 ,  G11B7/0053 ,  G11B7/0904 ,  G11B7/0948

    摘要： There is provided an optical recording apparatus for recording data on an optical disk. The optical recording apparatus includes: an optical pickup unit (110) which emits an optical signal to a predetermined track on an optical disk and detects reflection light; an optical pickup controller (140) which controls a location of the optical pickup unit (110) so that the optical signal is emitted along a predetermined tracking level on the track; a track address detector (130) which extracts track address information of the track from an electrical signal proportional to light intensity of the reflection light; and a controller (150) which changes the tracking level and controls the optical pickup controller (140) to emit the optical signal along to the changed tracking level, if no track address information is detected in a predetermined time by the track address detector (130). Therefore, it is possible to improve detection performance of track address information, thereby enhancing recording performance.

    摘要翻译： 有被限定在光学记录装置用于在光盘上记录的数据提供。 光学记录装置，包括：光学拾取单元（110）的光信号的发射到预定的轨道上至光盘并检测反射的光; 到光拾取控制装置（140），其控制光学拾取器单元的位置（110）象的光信号被沿着所述轨道上的预定跟踪电平发射的; 的轨道地址检测器（130），其从成比例的电信号的反射光的光强度的提取轨道的轨道的地址信息; 和控制器（150），其改变所述跟踪电平，并控制光学拾取器控制器（140）以发射的光信号沿改变后的跟踪电平，如果在由轨道地址检测器在预定的时间没有检测到磁迹地址信息（130 ）。 因此，可以改善循迹地址信息的检测性能，从而提高了记录性能。

    Phase change optical disc
    10.
    发明公开
    Phase change optical disc 审中-公开
    相变光盘

    公开(公告)号：EP1071087A2

    公开(公告)日：2001-01-24

    申请号：EP00306118.1

    申请日：2000-07-18

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Yoon, Du-seop ,  Ahn, Yong-jin ,  Park, Chang-min ,  Kim, Yoon-ki

    IPC分类号： G11B7/24

    CPC分类号： G11B7/00454 ,  G11B7/24065 ,  G11B7/243 ,  G11B7/257 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/2595 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S430/146

    摘要： A phase change optical disc is provided. The phase change optical disc has a multilayer structure in which on a transparent substrate (21) are sequentially laminated a first dielectric layer (22), a phase control layer (23), on which the two areas where a phase difference occurs due to irradiation with the reproduction beam, thus altering the optical path of the reproduction beam, are defined in a laser spot, a second dielectric layer (24), a phase change recording layer (25), which reversibly converts between a crystal phase and an amorphous phase by irradiation with a recording beam, a third dielectric layer (26), a reflective layer (27), and a protective layer (29). The information of a record mark can be reproduced due to the phase difference between adjacent areas on the phase control layer, thereby reducing the size of the effective spot of the reproduction beam. Accordingly, the mixing of the signals between adjacent marks or adjacent tracks is decreased, thereby realizing a high density optical disc and improving the resolution power of a reproduction signal.

    摘要翻译： 提供相变光盘。 相变光盘具有多层结构，其中在透明基板（21）上依次层叠第一介电层（22），相位控制层（23），在该相位控制层（23）上由于照射而出现相位差的两个区域 在激光点，第二电介质层（24），相变记录层（25）中限定了再现光束，从而改变再现光束的光路，所述相变记录层在晶体相和非晶相之间可逆地转换 通过照射记录光束，形成第三介电层（26），反射层（27）和保护层（29）。 记录标记的信息可以由于相位控制层上的相邻区域之间的相位差而被再现，从而减小再现光束的有效点的尺寸。 因此，相邻标记或相邻轨道之间的信号混合被减少，由此实现高密度光盘并提高再现信号的分辨率。