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    • 1. 发明申请
    • DUAL-STACK OPTICAL DATA STORAGE MEDIUM FOR WRITE ONCE RECORDING
    • 用于一次写入的双层光盘数据存储介质
    • WO2005036536A3
    • 2005-07-07
    • PCT/IB2004051994
    • 2004-10-06
    • KONINKL PHILIPS ELECTRONICS NVMARTENS HUBERT C FTIEKE BENNOWOERLEE PIERRE HVAN DEN OETELAAR RONALD J AKOPPERS WILHELMUS R
    • MARTENS HUBERT C FTIEKE BENNOWOERLEE PIERRE HVAN DEN OETELAAR RONALD J AKOPPERS WILHELMUS R
    • G11B7/24038G11B7/24
    • G11B7/24038
    • A dual-stack optical data storage medium (10) for write-once recording using a focused radiation beam (9) having a wavelength lambda of approximately 655 nm is described. The radiation beam enters through an entrance face (8) of the medium (10) during recording. The medium comprises at least one substrate (1, 7) with present on a side thereof:­ a first recording stack (6), named L0, comprising a write-once type L0 recording layer, said first recording stack L0 having an optical reflection value RL0 and an optical transmission value TL0, a second recording stack (3), named L1, comprising a write-once type L1 recording layer, said second recording stack L1 having an effective optical reflection value RLleff. The first recording stack (6) is present at a position closer to the entrance face (8) than the second recording stack. (3). A transparent spacer layer (4) is sandwiched between the recording stacks (3, 6). The reflection values RL0 and RL1 eff are within the following ranges: 0.12
    • 描述了使用波长λ约为655nm的聚焦辐射束(9)进行一次写入记录的双叠层光学数据存储介质(10)。 辐射束在记录期间通过介质(10)的入射面(8)进入。 该介质包括存在于其一侧上的至少一个衬底(1,7):称为L0的第一记录堆叠(6),其包括一次写入型L0记录层,所述第一记录堆叠L0具有光学反射值 RL0和光传输值TL0,第二记录堆栈(3),称为L1,包括一次写入型L1记录层,所述第二记录堆栈L1具有有效光学反射值RLleff。 第一记录叠层(6)存在于比第二记录叠层更靠近入射面(8)的位置。 (3)。 透明间隔层(4)夹在记录叠层(3,6)之间。 反射值RL0和RL1eff在以下范围内:0.12≤RL0≤0.18和0.12≤RL1eff≤0.18,由此实现双堆叠介质的改进的灵敏度。
    • 2. 发明申请
    • MULTI-STACK OPTICAL DATA STORAGE MEDIUM AND USE OF SUCH MEDIUM
    • 多层光学数据存储介质和这种介质的使用
    • WO2004021336A3
    • 2004-05-13
    • PCT/IB0303760
    • 2003-08-14
    • KONINKL PHILIPS ELECTRONICS NVVAN DEN OETELAAR RONALD J AMARTENS HUBERT C F
    • VAN DEN OETELAAR RONALD J AMARTENS HUBERT C F
    • G11B7/00G11B7/007G11B7/24
    • G11B7/24038G11B7/00455G11B7/24G11B7/24062G11B7/246G11B2007/0013G11B2220/235G11B2220/2562
    • A multi-stack optical data storage medium (30) for recording using a focused radiation beam (40) having a wavelength ? and entering through an entrance face (41) of the medium (30) is described. It has a first substrate (31a) with present on a side thereof a first recording stack (33) named L0, comprising a recordable type L0 recording layer (35), and formed in a first L0 guide groove (38). The L0 recording layer (35) has a thickness dL0G in the groove (38) and a thickness dL0L adjacent the groove (38). A second substrate (31b) has present on a side thereof a second recording stack (32) named L1 comprising a recordable type L1 recording layer (34). The L1 recording layer has a thickness dL1G in the groove and a thickness dL1L adjacent the groove. The second recording stack (32) is present at a position closer to the entrance face (41) than the L0 recording stack (33) and is formed in a second L1 guide groove (37). The depth of the first L0 guide groove (38) is smaller than 0.15? and dL0L is substantially equal to or larger than dL1G by which it is achieved that the L0 stack (33) has a reflection level and a modulation level of recorded marks compatible with the dual layer DVD-ROM specification.
    • 一种用于使用具有波长λ的聚焦辐射束(40)进行记录的多层光学数据存储介质(30) 并且通过介质(30)的入口面(41)进入。 它具有第一衬底(31a),其一侧上具有名为L0的第一记录堆叠(33),包括可记录型L0记录层(35),并形成在第一L0引导槽(38)中。 L0记录层(35)在槽(38)中具有厚度dL0G,并且与槽(38)相邻的厚度dL0L。 第二基板(31b)在其一侧上具有名称为L1的第二记录叠层(32),其包括可记录型L1记录层(34)。 L1记录层在槽中具有厚度dL1G,并且在槽附近具有厚度dL1L。 第二记录堆叠(32)存在于比L0记录堆叠(33)更靠近入射面(41)的位置,并且形成在第二L1引导槽(37)中。 第一L0引导槽(38)的深度小于0.15? 并且dL0L基本上等于或大于dL1G,由此实现L0堆叠(33)具有与双层DVD-ROM规范兼容的记录标记的反射电平和调制电平。
    • 6. 发明申请
    • APPARATUS AND METHOD FOR SCANNING AN INFORMATION TRACK AND RECORD CARRIER
    • 用于扫描信息跟踪和记录载体的装置和方法
    • WO2004025627A3
    • 2004-06-03
    • PCT/IB0303761
    • 2003-08-21
    • KONINKL PHILIPS ELECTRONICS NVMARTENS HUBERT C FTIEKE BENNOSPRUIT JOHANNES H M
    • MARTENS HUBERT C FTIEKE BENNOSPRUIT JOHANNES H M
    • G11B7/0045G11B7/007G11B7/125G11B7/24G11B7/24038G11B19/02G11B19/12G11B7/09
    • G11B7/1263G11B7/00456G11B7/00736G11B7/24038G11B19/02G11B19/12G11B19/127
    • In order to follow an information track (1) on an information carrier (2), a push-pull signal (PP) is generated. The polarity of the push-pull signal (PP) is different for different types of information carriers (2). Tracking means (8) should react differently to a push-pull signal (PP) with a positive polarity than to a push-pull signal (PP) with a negative polarity. The invention described is a method for scanning an information track (1) by determining the polarity of the push-pull signal (PP) first and putting the tracking means (8) in a first or second mode dependent on the polarity of the push-pull signal (PP). In the first mode the tracking means (8) react differently to the push-pull signal than in the second mode. The determination of the polarity of the push-pull signal (PP) can be done in several ways. The polarity can be stored on the information carrier (2), and the polarity determining means (9) read the polarity from the information carrier (2). Alternatively, the polarity determining means (9) can determine the polarity by directing the tracking means (8) to operate in the first and second mode subsequently, and check in which mode the scanning-location (6) was on-track.
    • 为了跟随信息载体(2)上的信息轨道(1),产生推挽信号(PP)。 推挽信号(PP)的极性对于不同类型的信息载体(2)是不同的。 跟踪装置(8)对具有正极性的推挽信号(PP)与具有负极性的推挽信号(PP)的反应不同。 所描述的本发明是一种用于通过首先确定推挽信号(PP)的极性来扫描信息轨道(1)并且根据推挽信号(PP)的极性将跟踪装置(8)置于第一或第二模式中的方法, 拉信号(PP)。 在第一模式中,跟踪装置(8)对推挽信号的反应与第二模式中的不同。 推挽信号(PP)的极性的确定可以以几种方式完成。 极性可以存储在信息载体(2)上,并且极性确定装置(9)从信息载体(2)读取极性。 可选地,极性确定装置(9)可以通过指示跟踪装置(8)随后以第一和第二模式操作并且检查扫描位置(6)在哪个模式下在轨道上来确定极性。