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公开(公告)号：US20080316876A1
公开(公告)日：2008-12-25
申请号：US12213761
申请日：2008-06-24
IPC分类号： G11B7/00
CPC分类号： G11B20/0021 , G11B7/005 , G11B7/007 , G11B7/24082 , G11B20/00086 , G11B20/1403 , G11B27/19 , G11B27/24 , G11B2220/20
摘要： The invention provides an optical disk that enables high-speed reproduction of address signals. A wobble address system for optical disk supports various types of synchronization, such as phase synchronization, bit synchronization, word synchronization, etc., to be established easily with high detection reliability with the use of an self-orthogonal code. Thus, the invention provides a method for easily synchronizing an address signal, i.e., high-speed reproduction of the address signal. Further, by virtue of an efficient modulation system of the address signal and redundancy thereof, it becomes possible to detect address information with high reliability. This capability is particularly effective in optical recording/reproduction with a blue light source whose signal light quantity and reproduction quality are prone to reduce. Moreover, other additional data of the address data is preserved in the wobbles, which provides medium information to a rewritable optical disk without using embossed pits such that a high-reliability disk (with enhanced security) is realized with a low cost and easily.
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公开(公告)号：US20080304375A1
公开(公告)日：2008-12-11
申请号：US12057744
申请日：2008-03-28
申请人： Manabu SHIOZAWA , Takahiro Kurokawa
发明人： Manabu SHIOZAWA , Takahiro Kurokawa
CPC分类号： G11B7/094
摘要： An optical disc apparatus includes a laser diode for emitting a laser light, a beam splitter for dividing the laser light into a main beam and sub beam, a main photodetector for detecting the main beam to output a main push-pull signal, a sub photodetector for detecting the sub beam to output a sub push-pull signal, and a subtracter for calculating the main and sub push-pull signals to output a differential push-pull signal, in which an amplification degree of the sub push-pull signal is adjusted so that a DC offset on the differential push-pull signal is adjusted, even in the case where a laser intensity is varied.
摘要翻译： 一种光盘装置，包括用于发射激光的激光二极管，用于将激光分为主光束和副光束的分束器，用于检测主光束以输出主推挽信号的主光检测器，子光检测器 用于检测子波以输出副推挽信号;以及减法器，用于计算主和副推挽信号以输出差分推挽信号，其中调整副推挽信号的放大度 使得即使在激光强度变化的情况下也可以调节差分推挽信号上的DC偏移。
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公开(公告)号：US20080291796A1
公开(公告)日：2008-11-27
申请号：US12183929
申请日：2008-07-31
IPC分类号： G11B5/00
CPC分类号： G11B7/00456 , G11B7/0062
摘要： An optical disk recording method includes the steps of: providing a multi-pulse chain from a recording wave; independently changing the pulse rise timing and pulse fall timing (pulse width) of the first pulse in the multi-pulse chain in accordance with a preceding space length and a recording mark length; changing the pulse rise timing and pulse fall timing (pulse width) in accordance with a following space length and the recording mark length in a predetermined timing or in independence; and in relation to the smallest mark recorded by irradiation with mono pulse, changing the rise timing in accordance with the preceding space length and the recording mark length and the fall timing (pulse width) in accordance with the following space length and recording mark length, compensating various optical disks different in recording material without change of the fundamental waveform.
摘要翻译： 光盘记录方法包括以下步骤：从记录波提供多脉冲链; 根据先前的空间长度和记录标记长度独立地改变多脉冲链中的第一脉冲的脉冲上升时间和脉冲下降时间（脉冲宽度）; 根据以下空间长度和记录标记长度在预定时间或独立性中改变脉冲上升时间和脉冲下降时间（脉冲宽度）; 并且相对于通过单脉冲照射记录的最小标记，根据以前的空格长度和记录标记长度以及根据以下空格长度和记录标记长度的下降时间（脉冲宽度）来改变上升时间， 补偿记录材料不同的各种光盘，而不改变基波形。
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公开(公告)号：US20080291795A1
公开(公告)日：2008-11-27
申请号：US12183909
申请日：2008-07-31
IPC分类号： G11B5/00
CPC分类号： G11B7/00456 , G11B7/0062
摘要： An optical disk recording method includes the steps of: providing a multi-pulse chain from a recording wave; independently changing the pulse rise timing and pulse fall timing (pulse width) of the first pulse in the multi-pulse chain in accordance with a preceding space length and a recording mark length; changing the pulse rise timing and pulse fall timing (pulse width) in accordance with a following space length and the recording mark length in a predetermined timing or in independence; and in relation to the smallest mark recorded by irradiation with mono pulse, changing the rise timing in accordance with the preceding space length and the recording mark length and the fall timing (pulse width) in accordance with the following space length and recording mark length, compensating various optical disks different in recording material without change of the fundamental waveform.
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公开(公告)号：US20070070855A1
公开(公告)日：2007-03-29
申请号：US11340563
申请日：2006-01-27
申请人： Koichi Watanabe , Takahiro Kurokawa
发明人： Koichi Watanabe , Takahiro Kurokawa
IPC分类号： G11B20/10
CPC分类号： G11B7/0062
摘要： A frequency characteristics compensation method that can be applied to various waveforms (strategies). When determining the amount of frequency compensation, a deteriorated part by frequency characteristics is compensated for with respect to the difference between the pulse power to be compensated and the power level immediately before it. The present invention can also be applied to variations in the performance, aged deterioration, and temperature characteristics.
摘要翻译： 可应用于各种波形（策略）的频率特性补偿方法。 当确定频率补偿量时，通过频率特性的劣化部分相对于要补偿的脉冲功率与紧邻的功率之间的差异来补偿。 本发明还可以应用于性能，老化劣化和温度特性的变化。
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36.发明申请公开(公告)号：US20060233070A1
公开(公告)日：2006-10-19
申请号：US11194599
申请日：2005-08-02
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/0053 , G11B7/0943 , G11B7/24079
摘要： The amount of focus offset and the amount of spherical aberration correction are adjusted with respect to a disk on which no data is recorded with high precision. The amount of focus offset and the amount of spherical aberration correction are adjusted on the basis of (1) a focus error signal amplitude, (2) a tracking error signal amplitude in a wide track pitch region, and (3) a rectangular waveform wobble signal envelop level.
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37.发明授权Information recording media, manufacturing technique and information recording method 失效信息记录介质，制造技术和信息记录方法公开(公告)号：US07041430B2
公开(公告)日：2006-05-09
申请号：US10219585
申请日：2002-08-16
申请人： Makoto Miyamoto , Akemi Hirotsune , Toshimichi Shintani , Takahiro Kurokawa , Keikichi Andoo , Yumiko Anzai
发明人： Makoto Miyamoto , Akemi Hirotsune , Toshimichi Shintani , Takahiro Kurokawa , Keikichi Andoo , Yumiko Anzai
CPC分类号： C22C12/00 , C23C14/3414 , G11B7/00718 , G11B7/2403 , G11B7/243 , G11B7/266 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25417 , G11B2007/25715 , Y10S430/114 , Y10S430/146
摘要： Problem to be solved is that when an information recording medium is repeatedly subjected to recording of information several hundreds times, the atoms in a protective layer are diffused and dissolved into a recording layer to lower a reflectivity greatly and make the medium unendurable to many times of overwriting. This problem can be solved by a medium constituted of interference layer 10, interface layer 12, phase-change type recording layer 14, protective layer 13 having a tin content of from 23.3 atomic % to 32.3 atomic %, and a heat sink layer 8 successively formed on substrate 1, as seen from a light-incidence side. By use of this medium, the dissolution of atoms can be prevented, and overwriting for many times can be achieved.
摘要翻译： 要解决的问题是当信息记录介质被重复地进行几百次的信息记录时，保护层中的原子被扩散并溶解到记录层中，以大大降低反射率，并使介质不可忍受多次 覆盖。 该问题可以通过由干涉层10，界面层12，相变型记录层14，锡含量为23.3原子％〜32.3原子％的保护层13和散热层8连续地构成的介质来解决 从光入射侧观察，形成在基板1上。 通过使用该介质，可以防止原子的溶解，可以实现多次重写。
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公开(公告)号：US06947370B2
公开(公告)日：2005-09-20
申请号：US10703537
申请日：2003-11-10
IPC分类号： G11B7/24 , G11B7/005 , G11B7/007 , G11B20/00 , G11B20/10 , G11B20/12 , G11B20/14 , G11B27/19 , G11B27/24 , G11B7/26
CPC分类号： G11B20/0021 , G11B7/005 , G11B7/007 , G11B7/24082 , G11B20/00086 , G11B20/1403 , G11B27/19 , G11B27/24 , G11B2220/20
摘要： The invention provides an optical disk that enables high-speed reproduction of address signals. A wobble address system for optical disk supports various types of synchronization, such as phase synchronization, bit synchronization, word synchronization, etc., to be established easily with high detection reliability with the use of an self-orthogonal code. Thus, the invention provides a method for easily synchronizing an address signal, i.e., high-speed reproduction of the address signal. Further, by virtue of an efficient modulation system of the address signal and redundancy thereof, it becomes possible to detect address information with high reliability. This capability is particularly effective in optical recording/reproduction with a blue light source whose signal light quantity and reproduction quality are prone to reduce. Moreover, other additional data of the address data is preserved in the wobbles, which provides medium information to a rewritable optical disk without using embossed pits such that a high-reliability disk (with enhanced security) is realized with a low cost and easily.
摘要翻译： 本发明提供一种能够高速再现地址信号的光盘。 用于光盘的摆动地址系统支持使用自正交码容易地建立具有高检测可靠性的各种类型的同步，诸如相位同步，位同步，字同步等。 因此，本发明提供了一种用于容易地同步地址信号的方法，即地址信号的高速再现。 此外，通过地址信号的有效调制方式及其冗余性，可以高可靠性地检测地址信息。 该功能在具有信号光量和再现质量易于降低的蓝色光源的光学记录/再现中特别有效。 此外，地址数据的其他附加数据被保留在摆动中，其向不可使用浮雕凹坑的可重写光盘提供媒体信息，从而以低成本且容易地实现高可靠性盘（具有增强的安全性）。
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公开(公告)号：US06922386B2
公开(公告)日：2005-07-26
申请号：US10713265
申请日：2003-11-17
IPC分类号： G11B7/0045 , G11B7/006 , G11B7/125 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1369 , G11B7/006 , G11B7/128 , G11B7/1353 , G11B7/1395
摘要： Light emitted from a laser is divided into two light waves so that the ratio of the power of one light wave to the power of the other will be appropriate. The resultant light waves are irradiated to the same track on a medium. The preceding spot is used for erasure, and modulated so that the same pattern as the one formed with a recording pulse will be formed. The high-power component of the modulated light of the erasing spot causes the temperature of a recording layer to be equal to or higher than the melting point. The medium-power component of the modulated light forms a crystallizing temperature area on the recording layer. A liquid crystal diffraction grating is used to divide power, and a power division ratio is variable and controllable.
摘要翻译： 从激光发射的光被分成两个光波，使得一个光波的功率与另一个光的功率的比率将是适当的。 所得到的光波照射到介质上的同一轨道上。 前一个点用于擦除，并被调制，使得将形成与记录脉冲形成的图案相同的图案。 擦除斑点的调制光的高功率分量导致记录层的温度等于或高于熔点。 调制光的中功率分量在记录层上形成结晶温度区域。 使用液晶衍射光栅来分配功率，功率分配比是可变的和可控的。
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公开(公告)号：US20050063294A1
公开(公告)日：2005-03-24
申请号：US10979172
申请日：2004-11-03
IPC分类号： G11B7/24 , G11B7/005 , G11B7/007 , G11B20/00 , G11B20/10 , G11B20/12 , G11B20/14 , G11B27/19 , G11B27/24 , G11B7/00
CPC分类号： G11B20/0021 , G11B7/005 , G11B7/007 , G11B7/24082 , G11B20/00086 , G11B20/1403 , G11B27/19 , G11B27/24 , G11B2220/20
摘要： The invention provides an optical disk that enables high-speed reproduction of address signals. A wobble address system for optical disk supports various types of synchronization, such as phase synchronization, bit synchronization, word synchronization, etc., to be established easily with high detection reliability with the use of an self-orthogonal code. Thus, the invention provides a method for easily synchronizing an address signal, i.e., high-speed reproduction of the address signal. Further, by virtue of an efficient modulation system of the address signal and redundancy thereof, it becomes possible to detect address information with high reliability. This capability is particularly effective in optical recording/reproduction with a blue light source whose signal light quantity and reproduction quality are prone to reduce. Moreover, other additional data of the address data is preserved in the wobbles, which provides medium information to a rewritable optical disk without using embossed pits such that a high-reliability disk (with enhanced security) is realized with a low cost and easily.
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