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    • 41. 发明申请
    • A MAGNETO-OPTICAL STORAGE MEDIUM
    • 磁光存储介质
    • WO2004027759A3
    • 2004-06-03
    • PCT/IB0303626
    • 2003-08-08
    • KONINKL PHILIPS ELECTRONICS NVPHILLIPS GAVIN N
    • PHILLIPS GAVIN N
    • G11B3/00G11B11/105
    • G11B11/10584G11B11/10586G11B11/10593
    • The invention relates to a magneto-optical storage medium (200) and specifically a domain expansion storage medium. The medium (200) comprises a magnetic storage layer (107) for long term information storage and a thereto magnetically coupled magnetic reproduction or read-out layer (111), wherein an enhanced magnetic domain may be generated during read out. The magnetic layers (107,111) are separated by a non-metallic or metallic, non-magnetic or magnetic layer (109) and at least one metal layer (201, 203), such as Palladium or Platinum, is located adjacent to the magnetic reproduction layer (111). Preferably this metal layer (201, 203) is located on each side of the magnetic reproduction layer (111). The metal layer(s) (201, 203) provides increased heat dissipation and Kerr effect thereby permitting increased data density of the magneto-optical storage medium (200).
    • 本发明涉及一种磁光存储介质(200),具体涉及一种域扩展存储介质。 介质(200)包括用于长期信息存储的磁存储层(107)和磁存储层(107),其中磁耦合磁重放或读出层(111),其中在读出期间可以产生增强磁畴。 磁性层(107,111)被非金属或金属,非磁性或磁性层(109)分开,并且诸如钯或铂之类的至少一个金属层(201,203)位于磁性再现 层(111)。 优选地,该金属层(201,203)位于磁复制层(111)的每一侧。 金属层(201,203)提供增加的散热和克尔效应,从而允许磁光存储介质(200)的数据密度增加。
    • 45. 发明申请
    • RECORD CARRIER AND APPARATUS FOR SCANNING THE RECORD CARRIER
    • 记录介质和记录介质扫描装置
    • WO99012157A2
    • 1999-03-11
    • PCT/IB1998/001310
    • 1998-08-21
    • G11B20/12G11B3/00G11B7/004G11B7/007G11B7/085G11B7/09G11B
    • G11B7/00745G11B7/00718
    • An optical record carrier comprises substantially parallel tracks being divided into recording units having an address area (23, 24), adjacent address areas of adjacent tracks (43, 44) comprising shared address marks (48). Shared address marks (47, 48) are positioned in between adjacent tracks and arranged in sharing portions (40, 41) of the address area, each sharing portion sharing address marks only to one side. The address area also comprises a free portion (39) which is free from shared address marks, which free portion is aligned with a sharing portion (42) of an adjacent address area. This is advantageous for reducing crosstalk in the address read signal. The sequence of the free and sharing portions within an address area differs so as to be matching in adjacent address areas. Further an apparatus for scanning the record carrier is described, which apparatus comprises an optical system (52) for generating a spot (66) on the record carrier via a radiation beam (65), tracking means (51), address recovery means (50, 56) and positioning means (54) for moving the spot to a desired track. The address recovery means (50, 56) are arranged for detecting the free portion and deriving the sequence of the free and sharing portions.
    • 一种光记录介质包括:基本平行的轨道划分成具有地址字段(23,24)的相邻轨道的相邻地址区(43,44)具有标记记录单元(48) 共享地址,共享地址标记(47,48)位于相邻轨道之间并被布置在地址区的共享部分(40,41)中,每个共享部分共享地址标记 只在一边。 地址区域还包括没有共享地址标记的空闲部分(39),该空闲部分与相邻地址区域的共享部分(42)对齐。 这具有减少地址读取信号中的串扰的优点。 地址字段内的空闲和共享部分的序列不同,以便在相邻地址区域中匹配。 此外,记录介质的扫描装置进行说明,该装置包括一个光学系统(52),通过辐射束的装置(65),装置产生所述记录介质上的点(66) 对准装置(51),地址恢复装置(50,56)和定位装置(54),用于移动期望轨道上的点。 地址恢复装置(50,56)被设置为检测空闲部分并导出空闲和共享部分的序列。