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1. 发明授权

EP1808854B8 Light source driving unit and optical storage apparatus 有权
标题翻译： Lichtquellenansteuereinheit和光学存储设备
公开(公告)号：EP1808854B8
公开(公告)日：2012-06-27
申请号：EP07007772.2
申请日：2002-10-18
申请人： Ricoh Company, Ltd.
发明人： Masui, Naruhiro , Ema, Hidetoshi
IPC分类号： G11B7/006 , G11B7/125 , G11B7/0045
CPC分类号： G11B7/1263 , G11B7/0062 , G11B11/1053

2. 发明公开

EP1852854A1 Method of measuring non-linearity in magnetic recording/reproduction, device for magnetic recording/reproduction and LSI for magnetic recording/reproduction 审中-公开
标题翻译： / - - 再现装置和LSI的磁记录/重放用于测量磁记录的非线性/再现装置，磁记录方法
公开(公告)号：EP1852854A1
公开(公告)日：2007-11-07
申请号：EP07113926.5
申请日：2001-11-29
申请人： Fujitsu Ltd.
发明人： Ueno, Hiroaki
IPC分类号： G11B5/00 , G11B5/09 , G11B11/105 , G11B20/18 , G11B27/36
CPC分类号： G11B27/36 , G11B5/09 , G11B11/1053 , G11B20/10009 , G11B2005/001 , G11B2220/20
摘要： A method of measuring non-linearity in the magnetic recording/reproduction of a medium comprises the steps of: measuring a first fifth harmonic component from a reproduced signal of a single reference signal magnetically recorded in a medium; measuring a second fifth harmonic component from a reproduced signal for each of the plural kinds of to-be-measured signals magnetically recorded in said medium; and calculating a non-linear transition shift NLTS in the magnetic recording/reproduction from said first fifth harmonic component and said second fifth harmonic component corresponding to each of the to-be-measured signals, wherein each of said reference signal and said to-be-measured signals is for magnetically recording repeatedly with a bit-string pattern in said medium, said bit-string pattern having even numbers of magnetic inversion bits denoted by 1.
摘要翻译：在介质中的磁记录/再现测量非线性的方法包括如下步骤：测量从磁性地记录在介质中的单个参考信号的再现信号的第一五次谐波分量; 测量来自再生信号的第五次谐波成分为每个所述多种磁性方式记录在所述介质的待测量的信号的; 并在从所述第一五次谐波成分的磁记录/再现计算的非线性转换换档NLTS和所述第二第五谐波分量对应于每个待测量的信号，每个所述参考信号和所述的worin待 -measured信号是用于磁性地在所述介质中的比特串模式重复记录，所述具有甚至由第一表示磁反转比特数的比特串模式

3. 发明公开

EP1808854A3 Light source driving unit and optical storage apparatus 有权
标题翻译：光源驱动单元和光存储设备
公开(公告)号：EP1808854A3
公开(公告)日：2007-07-25
申请号：EP07007772.2
申请日：2002-10-18
申请人： Ricoh Company, Ltd.
发明人： Masui, Naruhito , Ema, Hidetoshi
IPC分类号： G11B7/006 , G11B7/125 , G11B7/0045
CPC分类号： G11B7/1263 , G11B7/0062 , G11B11/1053
摘要： A light source driving unit includes a modulating signal generating section generating modulating signals based on driving waveform generating information of a light source, a current source selecting section selecting one or more currents output from current sources based on the modulating signals, a light source driving section generating a current having multi-levels based on the one or more currents selected and supplying the generated current to the light source to drive the light source so that light in multi-levels is generated from the light source, and a cancelling section adding a signal error amount which cancels differences in amounts of signal delays generated between the modulating signal generating section and the light source driving section at a stage prior to the current source selecting section.
摘要翻译：光源驱动单元包括：调制信号生成部分，基于光源的驱动波形生成信息生成调制信号;电流源选择部分，基于调制信号选择从电流源输出的一个或多个电流;光源驱动部分基于所选择的一个或多个电流产生具有多电平的电流，并将产生的电流提供给光源以驱动光源，使得从光源产生多级的光;以及消除部分，将信号误差量消除了在电流源选择部分之前的阶段在调制信号产生部分和光源驱动部分之间产生的信号延迟量的差异。

4. 发明公开

EP1808854A2 Light source driving unit and optical storage apparatus 有权
标题翻译： Lichtquellenansteuereinheit und optische Speichervorrichtung
公开(公告)号：EP1808854A2
公开(公告)日：2007-07-18
申请号：EP07007772.2
申请日：2002-10-18
申请人： Ricoh Company, Ltd.
发明人： Masui, Naruhito , Ema, Hidetoshi
IPC分类号： G11B7/006 , G11B7/125 , G11B7/0045
CPC分类号： G11B7/1263 , G11B7/0062 , G11B11/1053
摘要： A light source driving unit includes a modulating signal generating section generating modulating signals based on driving waveform generating information of a light source, a current source selecting section selecting one or more currents output from current sources based on the modulating signals, a light source driving section generating a current having multi-levels based on the one or more currents selected and supplying the generated current to the light source to drive the light source so that light in multi-levels is generated from the light source, and a cancelling section adding a signal error amount which cancels differences in amounts of signal delays generated between the modulating signal generating section and the light source driving section at a stage prior to the current source selecting section.
摘要翻译：光源驱动单元包括：调制信号产生部分，基于光源的驱动波形产生信息产生调制信号;电流源选择部分，根据调制信号选择从电流源输出的一个或多个电流;光源驱动部分基于所选择的一个或多个电流产生具有多电平的电流，并将所产生的电流提供给光源以驱动光源，使得从光源产生多电平的光;以及消除部分，将信号误差量，其消除在当前源选择部分之前的阶段在调制信号产生部分和光源驱动部分之间产生的信号延迟量的差异。

5. 发明公开

EP1699044A1 Optical data recording method and device 有权
标题翻译： Verfahren und Vorrichtung zur Aufzeichnung optischer Daten
公开(公告)号：EP1699044A1
公开(公告)日：2006-09-06
申请号：EP06013128.1
申请日：2003-10-09
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Shoji, Mamoru , Koishi, Kenji , Nakamura, Atsushi , Ishida, Takashi , Tasaka, Shuichi
IPC分类号： G11B7/00 , G11B7/125
CPC分类号： G11B7/24085 , G11B7/00456 , G11B11/10506 , G11B11/1053
摘要： An optical data recording method comprising the steps of: modulating data to be recorded, to generate a plurality of recording modulation codes; and emitting a pulse-like light beam to an optical disc, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the optical disc, wherein at least two of the plurality of recording marks are formed by the light beam emitted according to a recording pulse train, the recording pulse train comprising: a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark, wherein the recording pulse train includes a multi-pulse area in which the multi-pulse train disposed, a position of at least one pulse of the recording pulse train in the multi-pulse area is set so that a multi-pulse duty is set at a predetermined value, the multi-pulse duty being obtained by dividing a pulse width of the multi-pulse train by a period of the multi-pulse train, and the multi-pulse train has a pulse period which is twice as large as a reference period T of the recording modulation code and a corresponding device.
摘要翻译：一种光学数据记录方法，包括以下步骤：调制要记录的数据，以产生多个记录调制码; 并且向光盘发射脉冲状光束，使得在光盘上形成具有与多个记录调制码相对应的长度的多个记录标记和空间，其中多个记录标记中的至少两个由根据记录脉冲序列发射的光束形成，所述记录脉冲串包括：设置在前面并形成记录标记的前沿的第一脉冲，设置在后端并形成的最后脉冲记录标记的后沿和设置在第一脉冲和最后脉冲之间并形成记录标记的中心的多脉冲串，其中记录脉冲串包括多脉冲区，设置脉冲串，设定多脉冲区域中记录脉冲序列的至少一个脉冲的位置，使得多脉冲占空比被设定在预定值，多脉冲占空比由分频获得多脉冲序列的脉冲宽度为多脉冲序列的周期，多脉冲串的脉冲周期为记录调制码的基准周期T的两倍，相应的装置。

6. 发明授权

EP1376563B1 Optical data recording medium and recording method 有权
标题翻译：光记录介质和记录方法
公开(公告)号：EP1376563B1
公开(公告)日：2006-08-30
申请号：EP03017662.2
申请日：2000-05-11
申请人： Mitsubishi Kagaku Media Co., Ltd.
发明人： Nobukuni, Natsuko , Horie, Michikazu
IPC分类号： G11B7/24 , G11B7/26 , B41M5/26 , G11B7/125
CPC分类号： G11B7/0062 , G11B7/00456 , G11B7/126 , G11B7/243 , G11B7/2534 , G11B7/2585 , G11B11/10506 , G11B11/10528 , G11B11/1053 , G11B11/10595 , G11B2007/24304 , G11B2007/24306 , G11B2007/24308 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/2432

7. 发明公开

EP1530211A1 HIGH-DENSITY MAGNETO-OPTICAL RECORDING/REPRODUCING APPARATUS AND HIGH-DENSITY MAGNETO-OPTICAL RECORDING/REPRODUCING METHOD 审中-公开
标题翻译： VORRICHTUNG UND VERFAHREN ZUM HOCHDICHTEN MAGNETOOPTICHCHEN AUFZEICHNEN / WIEDERGEBEN
公开(公告)号：EP1530211A1
公开(公告)日：2005-05-11
申请号：EP02743802.7
申请日：2002-07-03
申请人： FUJITSU LIMITED
发明人： ITAKURA, Akihiro Fujitsu Limited
IPC分类号： G11B11/105
CPC分类号： G11B11/10595 , G11B11/10506 , G11B11/10508 , G11B11/10528 , G11B11/1053 , G11B11/10584 , G11B20/10009 , G11B20/10037
摘要： It is an object of the present invention to provide a high density magneto-optical recording/reproducing apparatus and a high density magneto-optical recording/reproducing method for recording a mark on a recording medium in a manner such that an edge position of a mark reproduced from the recording medium may not be varied. The magneto-optical recording/reproducing apparatus for recording/reproducing an information mark on/from a magneto-optical recording medium includes means for determining the length of a first recording information mark and means for adjusting the intensity of a recording magnetic field for recording a second information mark depending on the length of the first information mark recorded immediately before the second recording information mark.
摘要翻译：本发明的一个目的是提供一种高密度磁光记录/再现装置和用于在记录介质上以标记的边缘位置记录标记的高密度磁光记录/再现方法从记录介质再现的可能不会改变。用于在磁光记录介质上记录/再生信息标记的磁光记录/重放装置包括用于确定第一记录信息标记的长度的装置和用于调节记录磁场的强度的装置第二信息标记取决于紧接在第二记录信息标记之前记录的第一信息标记的长度。

8. 发明公开

EP1376563A3 Optical data recording medium and recording method 有权
标题翻译： Optisches Aufzeichnungsmedium und Aufzeichnungsverfahren
公开(公告)号：EP1376563A3
公开(公告)日：2004-07-14
申请号：EP03017662.2
申请日：2000-05-11
申请人： Mitsubishi Chemical Corporation
发明人： Nobukuni, Natsuko , Horie, Michikazu
IPC分类号： G11B7/24 , G11B7/26 , B41M5/26 , G11B7/125
CPC分类号： G11B7/0062 , G11B7/00456 , G11B7/126 , G11B7/243 , G11B7/2534 , G11B7/2585 , G11B11/10506 , G11B11/10528 , G11B11/1053 , G11B11/10595 , G11B2007/24304 , G11B2007/24306 , G11B2007/24308 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/2432
摘要： The present invention relates to an optical data recording medium comprising a recording layer containing Sb in excess at the eutectic point of Sb 70 Te 30 which undergoes reversible phase change between crystalline state and amorphous state which are different from each other in optical properties, wherein the crystalline state is a hexagonal polycrystal substantially composed of single phase made of M z Ge y (Sb x Te 1-x ) 1-y-z alloy (in which z is from not smaller than 0 to not greater than 0.1; y is from greater than 0 to not greater than 0.3; x is not smaller than 0.8; and M is at least one of In, Ga, Si, Sn, Pb, Pd, Pt, Zn, Au, Ag, Zr, Hf, V, Nb, Ta, Cr, Co, Mo, Mn, Bi, O, N and S). Recording is realized by a recording pulse division scheme with a reduced number of divisions.
摘要翻译：本发明涉及一种光学数据记录介质，其包括在Sb70Te30的共晶点处含有过量的Sb的记录层，其在晶体状态和非晶态之间经历可逆相变，其在光学性质上彼此不同，其中结晶态为基本上由MzGey（SbxTe1-x）1-yz合金（其中z为0以上且0.1以下）形成的单相的六边形多晶体，y为0以上且0.3以下，x为不小于0.8; M是In，Ga，Si，Sn，Pb，Pd，Pt，Zn，Au，Ag，Zr，Hf，V，Nb，Ta，Cr，Co，Mo，Mn， Bi，O，N和S）。通过具有减少的分割数的记录脉冲分割方案来实现记录。

9. 发明公开

EP1372146A2 And medium 有权
标题翻译： Optisches Aufzeichnungsverfahren und Medium
公开(公告)号：EP1372146A2
公开(公告)日：2003-12-17
申请号：EP03020494.5
申请日：2000-05-11
申请人： MITSUBISHI CHEMICAL CORPORATION
发明人： Nobukuni, Natsuko, Mitsubishi Chem. Corp. , Horie, Michikazu, Mitsubishi Chem. Corp.
IPC分类号： G11B7/125 , G11B11/105 , G11B7/24
CPC分类号： G11B7/0062 , G11B7/00456 , G11B7/126 , G11B7/243 , G11B7/2534 , G11B7/2585 , G11B11/10506 , G11B11/10528 , G11B11/1053 , G11B11/10595 , G11B2007/24304 , G11B2007/24306 , G11B2007/24308 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/2432
摘要： The present invention relates to an optical recording method for recording mark length modulated information with a plurality of recording mark lengths by irradiating a recording medium with a light, the optical recording method comprising a reduced number of divisions in the pulse division scheme.
Preferred phase change mediums are those having a recording layer containing excessive Sb in the SbTe eutectic composition. A particularly preferred composition contains excessive Sb and also Ge in the base Sb 70 Te 30 eutectic composition. The Sb/Te ratio is particularly preferably set to 4 or more. The content of Ge is preferably 10 atomic % or less. An example of such a recording layer is a M z Ge y (SB x Te 1-x ) 1-y-z alloy (where 0≤z≤0.1, 0
摘要翻译：本发明涉及一种用于通过用光照射记录介质来记录多个记录标记长度的标记长度调制信息的光学记录方法，该光学记录方法包括脉冲分割方案中减少的分割数。优选的相变介质是在SbTe共晶组合物中具有含有过量Sb的记录层的介质。特别优选的组合物在碱Sb70Te30共晶组合物中含有过量的Sb和Ge。特别优选将Sb / Te比设定为4以上。 Ge的含量优选为10原子％以下。这种记录层的一个例子是MzGey（SBxTe1-x）1-yz合金（其中0≤z≤0.1,0

10. 发明公开

EP1324329A2 Magneto-optical recording method and apparatus 有权
标题翻译： Magnetoptisches Aufzeichnungsverfahren undGerät
公开(公告)号：EP1324329A2
公开(公告)日：2003-07-02
申请号：EP02258858.6
申请日：2002-12-23
申请人： CANON KABUSHIKI KAISHA
发明人： Koichiro, Nishikawa, c/o Canon Kabushiki Kaisha
IPC分类号： G11B11/105
CPC分类号： G11B11/10504 , G11B11/10515 , G11B11/1053 , G11B11/10578 , G11B11/10595
摘要： Method of recording information on a magneto-optical recording medium of domain wall displacement type having a preformat area and a data area succeeding thereto, comprising the steps of generating a reproduction signal from said medium by utilizing a light beam, detecting a reference position based on said reproduction signal, determining, based on a result of the detection, a recording start timing at which a formation of a recording magnetic domain is started at a distance at least not shorter than a displacement amount of a domain wall away from a start position of said data area; and starting a recording with said determined recording start timing.
摘要翻译：在具有预格式区域和其后的数据区域的畴壁位移型磁光记录介质上记录信息的方法包括以下步骤：利用光束从所述介质产生再现信号，基于所述再现信号，基于检测结果确定记录磁畴的形成开始的记录开始时刻至少不小于远离起始位置的畴壁的位移量的距离说数据区; 并且利用所述确定的记录开始定时开始记录。

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