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    • 16. 发明申请
    • OPTICAL DATA STORAGE MEDIUM AND USE OF SUCH MEDIUM
    • 光学数据存储介质和这种介质的使用
    • WO2003100774A1
    • 2003-12-04
    • PCT/IB2003/001980
    • 2003-05-14
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.WOERLEE, Pierre, H.KOPPERS, Wilhelmus, R.VLUTTERS, RuudYIN, BinDRENTEN, Ronald, R.
    • WOERLEE, Pierre, H.KOPPERS, Wilhelmus, R.VLUTTERS, RuudYIN, BinDRENTEN, Ronald, R.
    • G11B7/007
    • G11B7/24038G11B7/00557G11B7/00736
    • A multi-stack optical data storage medium (20) for rewritable recording using a focused radiation beam (30), entering through an entrance face (25) is described. The medium (20) has a substrate (1a, 1b) and an L0 recording stack (2) and an L1 recording stack(3) both comprising a phase-change type L0 and L1 recording layer and the recording stacks are separated by a transparent spacer layer (4). The L0 recording stack (2) is present at a position closest to the entrance face (25) and has an optical transmission of TL0a and TL0c when the phase-change layer respectively is in the amorphous phase and in the crystalline phase. The medium (20) contains pre-recorded information modulated in at least one of: an embossed pregroove (21) in the substrate (1a, 1b), embossed pits in the substrate and recorded phase-change marks in at least one of the recording layers L0 and L1 (6, 11). The pre-recorded information contains a flag whether formatting of the L0 recording layer of the L0 recording stack (2) is needed depending on the transmission values TL0a and TL0c of the L0 recording stack (2). In this way it is achieved that the medium (20) has a good playability, recordability and random access behavior even when the L0 recording layer (2) has been partially recorded with information.
    • 描述了使用聚焦辐射束(30)通过入射面(25)进入的可重写记录的多层光学数据存储介质(20)。 介质(20)具有基板(1a,1b)和包括相变型L0和L1记录层的L0记录叠层(2)和L1记录叠层(3),并且记录叠层被透明 间隔层(4)。 L0记录堆叠(2)存在于最接近入射面(25)的位置,并且当相变层分别处于非晶相和晶相时,具有TL0a和TL0c的光透射。 介质(20)包含在以下至少一个中调制的预先记录的信息:衬底(1a,1b)中的压花预槽(21),衬底中的压花凹坑和记录中的至少一个中记录的相变标记 层L0和L1(6,11)。 预先记录的信息包含根据L0记录堆叠(2)的传输值TL0a和TL0c是否需要格式化L0记录堆叠(2)的L0记录层的标志。 以这种方式,实现即使L0记录层(2)已被部分地记录信息,介质(20)也具有良好的可播放性,可记录性和随机访问行为。
    • 17. 发明申请
    • CIRCUIT WITH A MEMORY ARRAY AND A REFERENCE LEVEL GENERATOR CIRCUIT
    • 具有存储器阵列的电路和参考电平发生器电路
    • WO2006075262A1
    • 2006-07-20
    • PCT/IB2006/050037
    • 2006-01-05
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.VAN ACHT, Victor, M., G.LAMBERT, NicolaasWOERLEE, Pierre, H.
    • VAN ACHT, Victor, M., G.LAMBERT, NicolaasWOERLEE, Pierre, H.
    • G11C7/06
    • G11C7/14
    • A circuit comprises an array of memory cells (10). A plurality of sensing circuits (20), are coupled to the output (14) of respective memory cells (10), for comparing the output signal of the respective one of the memory cells (10) with a reference signal to form a data signal from the output signal from the respective one of the memory cells (10). A reference generator circuit (24, 26) forms the reference signal from a sum wherein each respective one of the memory cells (10) of the addressed group contributes a contribution that is a function of the output signal of the respective one of the memory cells (10). The contributions are equalized for output signal values at more than a saturating distance above the reference signal, and the contributions are equalized for output signal values at more than the saturating distance below the reference signal. In case of storage of multi- level data in the cells the distances from the central level to the saturation levels above and below the reference level are mutually different, with a ratio that corresponds to a ratio of the counts of cells that have been programmed to respective levels.
    • 电路包括存储器单元阵列(10)。 多个感测电路(20)耦合到相应存储单元(10)的输出(14),用于将存储单元(10)中的相应一个的输出信号与参考信号进行比较以形成数据信号 来自存储单元(10)中的相应一个的输出信号。 参考发生器电路(24,26)从一个和形成参考信号,其中寻址组的每个存储单元(10)中的每个相应的一个贡献作为存储单元的相应一个的输出信号的函数 (10)。 在超过参考信号的饱和距离上的输出信号值的贡献相等,并且在超过参考信号以下的饱和距离处的输出信号值的贡献相等。 在单元格中存储多级数据的情况下,从基准电平以上和低于基准电平的中心电平到饱和电平的距离是相互不同的,其比例对应于已编程的单元计数的比率 各级别。