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1. 发明公开

EP1544725A1 Prevention of low speed recording on an optical recording medium 有权
标题翻译：防止光学记录介质上的低速记录
公开(公告)号：EP1544725A1
公开(公告)日：2005-06-22
申请号：EP04030020.4
申请日：2001-02-23
申请人： Ricoh Company, Ltd.
发明人： Katoh, Masaki , Nakamura, Yuki , Yamada, Katsuyuki
IPC分类号： G06F7/00 , G06F7/24 , G11B20/12 , G11B19/12 , G11B27/00
CPC分类号： G11B20/10 , G11B7/0053 , G11B7/00745 , G11B19/04 , G11B20/12 , G11B20/1217 , G11B20/1258 , G11B27/105 , G11B27/24 , G11B27/3027 , G11B27/36 , G11B2020/10981 , G11B2020/1099 , G11B2020/1232 , G11B2020/1267 , G11B2020/1269 , G11B2020/1275 , G11B2220/216 , G11B2220/218 , G11B2220/2537 , G11B2220/2545 , G11B2220/2562
摘要： A recording apparatus comprising: a detecting part which detects as to whether or not an inconsecutive part for addresses t exists in an area A1 of a recording medium; and a correcting part which performs correction for the inconsecutive addresses thereof when the inconsecutive part is detected by said detecting part.
摘要翻译：一种记录设备，包括：检测部分，用于检测在记录介质的区域A1中是否存在用于地址t的非连续部分; 以及校正部分，当所述检测部分检测到非连续部分时，校正部分对其非连续地址执行校正。

2. 发明公开

EP1182650A3 Phase-change type optical information recording medium 审中-公开
标题翻译：相变型的光信息记录介质
公开(公告)号：EP1182650A3
公开(公告)日：2002-08-14
申请号：EP01119462.8
申请日：2001-08-13
申请人： Ricoh Company, Ltd.
发明人： Katoh, Masaki , Yamada, Katsuyuki , Nakamura, Yuki
IPC分类号： G11B7/0045 , G11B7/24
CPC分类号： G11B7/00454 , G11B7/243 , G11B7/2534 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316
摘要： The phase-change type optical information recording medium includes a transparent substrate, a first protective layer on the substrate, a recording layer on the first protective layer, a second protective layer on the recording layer, and a reflective layer on the second protective layer. Assuming that minimum recording linear velocity is V 1 and maximum recording linear velocity is V 2 , then a value of ratio I(V 2 ) /I(V 1 ) of a degree of modulation corresponding to the maximum and minimum linear velocities is between 1 and 1.2.

3. 发明公开

EP1229530A3 Optical information recording medium 审中-公开
标题翻译：光学信息记录介质
公开(公告)号：EP1229530A3
公开(公告)日：2006-10-18
申请号：EP02250641.4
申请日：2002-01-30
申请人： Ricoh Company, Ltd.
发明人： Katoh, Masaki , Nakamura, Yuki , Yamada, Katsuyuki
IPC分类号： G11B7/24
CPC分类号： G11B7/243 , G11B7/006 , G11B7/126 , G11B7/2403 , G11B7/24067 , G11B7/2542 , G11B7/258 , G11B7/2585 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , Y10S430/146
摘要： A phase change optical recording medium is disclosed including at least a supporting substrate, and recording layer essentially consisting of AgInSbTe alloy compositions feasible of implementing recording and readout steps utilizing the change in reflectivity. The recording medium is characterized by the relation v 0 ≥ 0.7 v WH , where the critical relative velocity of phase change, v 0 , defined by the value of v, at which the differential coefficient, - dR (v) /dv, reaches a maximum, when the recording medium moves against an optical unit during the recording steps at a relative velocity, v, ranging from minimum and maximum relative velocities warranted for the recording medium, V WL and V WH , respectively. In addition, when the reflectivity is measured with varying erase power P E at the linear relative scanning velocity v 0 , the reflectivity of the recording layer as a function of erase power, R(P E ), preferably has a minimum. The recording layer included in the recording medium is devised to have an activation energy of deterioration of equal to, or larger than 1.6 eV, which is obtained by measuring asymmetry, A, and calculating according to the equations, k = dt/ dA, and k = k 0 x exp(E a /k B T). The recording medium is also characterized by activation energy of displacement of the boundary, ranging from 1.0 eV to 2.4 eV, which is obtained from the rate of decrease in the area, S, of the amorphous regions as recorded marks with time according to Arrhenius' equation.
摘要翻译：公开了一种相变光学记录介质，其包括至少一个支撑衬底和基本上由AgInSbTe合金组合物组成的记录层，该记录层可利用反射率的变化实现记录和读出步骤。记录介质的特征在于关系v 0≥0.7vWH，其中相位变化的临界相对速度v 0由v的值定义，其中微分系数-dR（v）/ dv达到最大时的值v 记录介质在记录步骤期间以相对速度V在记录介质VWL和VWH所保证的最小和最大相对速度范围内分别抵靠光学单元移动。另外，当以线性相对扫描速度v 0改变擦除功率PE测量反射率时，作为擦除功率R（PE）的函数的记录层的反射率优选地具有最小值。包括在记录介质中的记录层被设计为具有通过测量不对称性A获得的等于或大于1.6eV的劣化激活能，并且根据等式计算k = dt / dA和 k = k0×exp（Ea / kBT）。记录介质的特征还在于边界位移的激活能，其范围从1.0eV到2.4eV，这是由非晶区的面积减少速率S获得的，作为记录标记随时间的变化根据Arrhenius' 方程。

4. 发明公开

EP1182650A2 Phase-change type optical information recording medium 审中-公开
标题翻译： Optisches Informationsaufzeichnungsmedium vom Phasenwechseltyp
公开(公告)号：EP1182650A2
公开(公告)日：2002-02-27
申请号：EP01119462.8
申请日：2001-08-13
申请人： Ricoh Company, Ltd.
发明人： Katoh, Masaki , Yamada, Katsuyuki , Nakamura, Yuki
IPC分类号： G11B7/0045
CPC分类号： G11B7/00454 , G11B7/243 , G11B7/2534 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316
摘要： The phase-change type optical information recording medium includes a transparent substrate, a first protective layer on the substrate, a recording layer on the first protective layer, a second protective layer on the recording layer, and a reflective layer on the second protective layer. Assuming that minimum recording linear velocity is V 1 and maximum recording linear velocity is V 2 , then a value of ratio I(V 2 ) /I(V 1 ) of a degree of modulation corresponding to the maximum and minimum linear velocities is between 1 and 1.2.
摘要翻译：相变型光信息记录介质包括透明基板，基板上的第一保护层，第一保护层上的记录层，记录层上的第二保护层和第二保护层上的反射层。假设最小记录线速度为V1，最大记录线速度为V2，则与最大和最小线速度对应的调制度的比值I（V2）/ I（V1）的值为1至1.2。

5. 发明公开

EP1615120A1 Prevention of low speed recording on an optical recording medium 有权
标题翻译：防止光学记录介质上的低速记录
公开(公告)号：EP1615120A1
公开(公告)日：2006-01-11
申请号：EP05022211.6
申请日：2001-02-23
申请人： Ricoh Company, Ltd.
发明人： Katoh, Masaki , Nakamura, Yuki , Yamada, Katsuyuki
IPC分类号： G06F7/00 , G06F7/24 , G11B20/12 , G11B19/12 , G11B27/00
CPC分类号： G11B20/10 , G11B7/0053 , G11B7/00745 , G11B19/04 , G11B20/12 , G11B20/1217 , G11B20/1258 , G11B27/105 , G11B27/24 , G11B27/3027 , G11B27/36 , G11B2020/10981 , G11B2020/1099 , G11B2020/1232 , G11B2020/1267 , G11B2020/1269 , G11B2020/1275 , G11B2220/216 , G11B2220/218 , G11B2220/2537 , G11B2220/2545 , G11B2220/2562
摘要： A recordable optical information recording medium having an address t for each sector, comprises: an area A1 starting from an address t1 to which access is made only when a recording apparatus performs recording operation; an area A2 starting from an address t2 to which access is made either when the recording apparatus performs the recording operation or when the recording apparatus performs reproducing operation; and an area A3 starting from an address t3 to which access is made either when either the recording apparatus or a reproducing apparatus performs recording or when either the recording apparatus or the reproducing apparatus performs reproducing. The addresses t are set consecutively with respect to a physical arrangement of the sectors in each of the areas A2 and A3, and the area A1 has at least one inconsecutive part (2; 3; 4) at which the addresses t are not consecutive with respect to the physical arrangement of the sectors.
摘要翻译：具有每个扇区的地址t的可记录光学信息记录介质包括：从仅在记录装置执行记录操作时才进行访问的地址t1开始的区域A1; 当记录装置执行记录操作时或者当记录装置执行再现操作时从地址t2开始的区域A2; 以及当记录设备或再现设备执行记录时或者当记录设备或再现设备执行再现时从地址t3开始的区域A3。地址t相对于区域A2和A3中的每一个中的扇区的物理布置连续地设置，并且区域A1具有至少一个地址t不连续的非连续部分（2; 3; 4）尊重部门的实际安排。

6. 发明公开

EP1286345A3 Optical information recording medium 审中-公开
公开(公告)号：EP1286345A3
公开(公告)日：2005-08-31
申请号：EP02254631.1
申请日：2002-07-02
申请人： Ricoh Company, Ltd.
发明人： Katoh, Masaki
IPC分类号： G11B7/24 , G11B7/007 , G11B27/19 , G11B27/24
CPC分类号： G11B7/243 , G11B7/00454 , G11B7/24079 , G11B7/24082 , G11B7/258 , G11B7/2585 , G11B27/24 , G11B2220/216 , G11B2220/2537
摘要： A rewritable optical information recording medium includes a transparent substrate on which a groove is formed, and a recording layer on which frequency-modulated address information is recorded by wobbling the groove. The recording layer is provided on the transparent substrate. In the rewritable optical information recording medium, J(M) / M ≦ 0.17 is satisfied where J(M) is relative jitter with respect to a basic clock T0 and M is a degree of modulation of recorded signal. The relative jitter J(M) is given by J(M) = Tσ (M) / T0 when Tσ (M) is jitter with respect to the degree of modulation M. The jitter Tσ (M) is caused in the demodulated address information which is one modulated according to mark length modulation.

7. 发明公开

EP1398771A3 Optical information recording medium and recording apparatus 有权
标题翻译：光学信息记录介质和记录装置
公开(公告)号：EP1398771A3
公开(公告)日：2004-04-28
申请号：EP03027375.9
申请日：2001-02-23
申请人： Ricoh Company Ltd.
发明人： Katoh, Masaki , Nakamura, Yuki , Yamada, Katsuyuki
IPC分类号： G06F7/00 , G06F7/24 , G11B20/12
CPC分类号： G11B20/10 , G11B7/0053 , G11B7/00745 , G11B19/04 , G11B20/12 , G11B20/1217 , G11B20/1258 , G11B27/105 , G11B27/24 , G11B27/3027 , G11B27/36 , G11B2020/10981 , G11B2020/1099 , G11B2020/1232 , G11B2020/1267 , G11B2020/1269 , G11B2020/1275 , G11B2220/216 , G11B2220/218 , G11B2220/2537 , G11B2220/2545 , G11B2220/2562
摘要： A recording apparatus for recording information on an optical information recording medium by applying light thereon from an optical pickup, comprising: a detection part detecting as to whether or not an inconsecutive portion of addresses occurs in the optical information recording medium based on a signal detected via said optical pickup; and a correction part correcting address in the inconsecutive portion in case the inconsecutive portion is detected by said detection part.
摘要翻译：一种记录装置，用于通过在光学信息记录介质上施加光而在光学信息记录介质上记录信息，该记录装置包括：检测部分，用于基于经由光学拾取器检测到的信号来检测在光学信息记录介质中是否发生地址中的不连续部分所述光学拾取器; 以及在所述检测部分检测到非连续部分的情况下，校正部分校正非连续部分中的地址。

8. 发明公开

EP1223577A3 Phase change optical recording medium 审中-公开
标题翻译： Optisches Aufzeichnungsmedium mitPhasenänderung
公开(公告)号：EP1223577A3
公开(公告)日：2006-05-24
申请号：EP02250177.9
申请日：2002-01-10
申请人： Ricoh Company, Ltd.
发明人： Nakamura, Yuki , Katoh, Masaki
IPC分类号： G11B7/26 , G11B7/24 , G11B7/125
CPC分类号： G11B7/1267 , C23C14/0623 , C23C14/3414 , G11B7/0045 , G11B7/00454 , G11B7/0062 , G11B7/243 , G11B7/2542 , G11B7/2585 , G11B7/259 , G11B7/26 , G11B7/268 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316
摘要： A phase change optical recording medium is disclosed together with the methods for optimally initializing and recording such recording media, feasible for carrying out read/write/erase operations at multiple recording velocities ranging from 4.8 m/sec to 30 m/sec. Preferably, a recording layer included in the recording medium essentially consists of Ag, In, Sb and Te, with the proportion in atom % of a(Ag): b(In): c(Sb): d(Te), with 0.1 ≤ a ≤ 7, 2 ≤ b ≤ 10, 64 ≤ c ≤ 92 and 5 ≤ d ≤ 26, provided that a + b + c + d ≥ 97. The method for initializing the recording medium with a scanning beam spot from a high power semiconductor laser is characterized by the energy density input by the beam spot during one period of through scan is equal to, or less than, 1000 J/m 2 , scanning speed of beam spot is in the range of 3.5 m/sec to 6.5 m/sec, and the intensity of laser emission equal to, or greater than 330 mW. Furthermore, the present method for determining an optimum recording power includes at least the step of calculating a normalized gradient g(P), from the equation g(P)= (m/Δm)/(P/ΔP), where ΔP is an infinitesimal change in the vicinity of recording power P, and Δm is an infinitesimal change in the vicinity of signal amplitude m.
摘要翻译：公开了一种相位改变光记录介质以及用于最佳地初始化和记录这种记录介质的方法，可用于以4.8m / sec至30m / sec的多个记录速度进行读/写/擦除操作。优选地，记录介质中包括的记录层基本上由Ag，In，Sb和Te组成，原子％的比例为（Ag）：b（In）：c（Sb）：d（Te），0.1 ‰¤‰¤‰¤‰¤‰¤¤‰‰‰¤¤‰¤¤‰¤¤¤²²‰²¤¤¤¤¤¤¤¤¤¤¤¤¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥ 具有来自大功率半导体激光器的扫描光束点的介质的特征在于通过扫描期间的束斑输入的能量密度等于或小于1000J / m 2，束斑的扫描速度为 3.5m / sec至6.5m / sec的范围，激光发射强度等于或大于330mW。此外，用于确定最佳记录功率的本方法至少包括从公式g（P）=（m /“m）/（P /”P））计算归一化梯度g（P）的步骤，其中“ P是记录功率P附近的微小变化，“m”是信号幅度m附近的无穷小变化。

9. 发明公开

EP1398772A3 Optical information recording medium and recording apparatus 有权
标题翻译：所述光学信息记录介质和信息记录装置
公开(公告)号：EP1398772A3
公开(公告)日：2004-04-28
申请号：EP03027376.7
申请日：2001-02-23
申请人： Ricoh Company Ltd.
发明人： Katoh, Masaki , Nakamura, Yuki , Yamada, Katsuyuki
IPC分类号： G11B7/007 , G11B7/00 , G11B7/24
CPC分类号： G11B20/10 , G11B7/0053 , G11B7/00745 , G11B19/04 , G11B20/12 , G11B20/1217 , G11B20/1258 , G11B27/105 , G11B27/24 , G11B27/3027 , G11B27/36 , G11B2020/10981 , G11B2020/1099 , G11B2020/1232 , G11B2020/1267 , G11B2020/1269 , G11B2020/1275 , G11B2220/216 , G11B2220/218 , G11B2220/2537 , G11B2220/2545 , G11B2220/2562
摘要： An optical information recording medium on which information is recorded through application of light thereto, having a characteristic such that a degree of modulation is obtained which is lower than the lowest standard value of the optical information recording medium when recording of the longest record mark is made at a recording speed of V = 0.5Vmin, wherein Vmin is the lowest recording speed guaranteed for the optical information recording medium.

10. 发明公开

EP1398772A2 Optical information recording medium and recording apparatus 有权
标题翻译：光学信息记录介质和记录装置
公开(公告)号：EP1398772A2
公开(公告)日：2004-03-17
申请号：EP03027376.7
申请日：2001-02-23
申请人： Ricoh Company Ltd.
发明人： Katoh, Masaki , Nakamura, Yuki , Yamada, Katsuyuki
IPC分类号： G11B7/007 , G06F7/00
CPC分类号： G11B20/10 , G11B7/0053 , G11B7/00745 , G11B19/04 , G11B20/12 , G11B20/1217 , G11B20/1258 , G11B27/105 , G11B27/24 , G11B27/3027 , G11B27/36 , G11B2020/10981 , G11B2020/1099 , G11B2020/1232 , G11B2020/1267 , G11B2020/1269 , G11B2020/1275 , G11B2220/216 , G11B2220/218 , G11B2220/2537 , G11B2220/2545 , G11B2220/2562
摘要： An optical information recording medium on which information is recorded through application of light thereto, having a characteristic such that a degree of modulation is obtained which is lower than the lowest standard value of the optical information recording medium when recording of the longest record mark is made at a recording speed of V = 0.5Vmin, wherein Vmin is the lowest recording speed guaranteed for the optical information recording medium.
摘要翻译：一种光学信息记录介质，通过对其施加光而在其上记录信息，该光学信息记录介质具有这样的特性，即当进行最长记录标记的记录时获得低于光学信息记录介质的最低标准值的调制度以V = 0.5Vmin的记录速度进行，其中Vmin是保证光信息记录介质的最低记录速度。

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