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61. 发明公开

EP1435609A3 Optical disc and optical disc address reading apparatus and method 有权
标题翻译：光学介质和Adresseseleseeinrichtung和耳部的媒体程序
公开(公告)号：EP1435609A3
公开(公告)日：2006-01-25
申请号：EP04004460.4
申请日：2000-12-27
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Furumiya, Shigeru , Ishibashi, Hiromichi , Ishida, Takashi , Kobayashi, Yoshiharu
IPC分类号： G11B7/007 , G11B7/005 , G11B7/24 , G11B20/12
CPC分类号： G11B27/24 , G11B7/00 , G11B7/0037 , G11B7/007 , G11B7/00745 , G11B20/00601 , G11B20/10009 , G11B20/12 , G11B20/1217 , G11B20/1403 , G11B20/1833 , G11B27/105 , G11B27/19 , G11B27/3027 , G11B2020/1232 , G11B2020/1239 , G11B2020/1268 , G11B2020/1269 , G11B2020/1287 , G11B2020/1292 , G11B2020/1298 , G11B2220/20 , G11B2220/216 , G11B2220/2529 , G11B2220/2545 , G11B2220/2575
摘要： An optical disc having marks for dispersed addresses that can be easily detected with high precision.
A dispersed address comprises synchronization marks, positive marks, and negative marks. Synchronization marks, positive marks, and negative marks are formed along a groove as partial discontinuities or partial modifications in the wobbled groove.

62. 发明公开

EP1526516A3 Optical recording medium, substrate for optical recording medium and optical disk device 有权
标题翻译： Optisches Aufzeichnungsmedium，Substrat eines optischen Aufzeichnungsmediums und optischesPlattengerät
公开(公告)号：EP1526516A3
公开(公告)日：2005-12-28
申请号：EP05002015.5
申请日：2000-09-13
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Akiyama, Tetsuya , Nishiuchi, Kenichi , Tsukuda, Masahiko , Furukawa, Shigeaki , Miyake, Tomoyoshi
IPC分类号： G11B7/00 , G11B7/007 , G11B7/013 , G11B7/09 , G11B20/10 , G11B20/12
CPC分类号： G11B20/10 , G11B7/005 , G11B7/0053 , G11B7/00718 , G11B7/00745 , G11B7/24085
摘要： In an optical recording medium employing an intermediate address method, a pit width W of an address pit is set to satisfy the relationship: W = k · Tp / (λ / NA) [0.40 ≤ k ≤ 0.68] with respect to a laser wavelength λ and a numerical aperture NA of an objective lens of an optical head of an optical disk device being used, and a track pitch Tp of the recording medium. Alternatively, an optical disk device is provided with a first address demodulating circuit (17) for demodulating address information using a sum signal (15S) of electric signals output from a photodetector (20) divided into two parts in a track direction and a second address demodulating circuit (29) for demodulating address information using a difference signal (16S) of the electric signals, and an address is detected based on information obtained from the first (17) and second (29) address demodulating circuits. Thus, in reproduction of the optical recording medium employing the intermediate address method, compatibility of the recording medium and the optical disk device being used can be enhanced, and a reproduction margin in demodulating address information can be increased, thereby achieving high-accuracy address detection.
摘要翻译：在采用中间寻址方法的光记录介质中，地址坑的凹坑宽度W被设置为满足关系：W = k。相对于所使用的光盘装置的光头的物镜的激光波长λ和数值孔径NA，Tp /（λ/ NA）Ä0.40≤k≤0.68，，轨迹间距Tp 记录介质。或者，光盘装置设置有第一地址解调电路，用于使用从沿轨道方向分成两部分的光电检测器输出的电信号的和信号来解调地址信息，以及第二地址解调电路，用于使用差分解调地址信息电信号的信号，并且基于从第一和第二地址解调电路获得的信息来检测地址。因此，在采用中间地址方法的光记录介质的再现中，可以增强记录介质和所使用的光盘装置的兼容性，并且可以增加解调地址信息的再现余量，从而实现高精度地址检测。

63. 发明公开

EP1588359A1 OPTICAL DISC, METHOD AND APPARATUS FOR MANAGING A DEFECTIVE AREA ON AN OPTICAL DISC 有权
标题翻译：光盘的方法和设备管理缺陷区在光盘
公开(公告)号：EP1588359A1
公开(公告)日：2005-10-26
申请号：EP03815614.7
申请日：2003-10-01
申请人： LG ELECTRONICS INC.
发明人： PARK, Yong Cheol , KIM, Sung Dae
IPC分类号： G11B7/00 , G11B11/00
CPC分类号： G11B20/1883 , G11B7/00745 , G11B2007/0013 , G11B2020/1873 , G11B2220/20
摘要： A method and apparatus for managing a defective area on an optical recording medium of writable once type, permits more efficient writing and management of defect list information or temporary defect list information for managing the defective area in a minimum recording size. The method includes writing data in a defective area existing on a high density optical disc, such as a BD-WO, in a spare area in place of the defective area, producing defect list information for access to the data replacement written in the spare area and writing in a particular area for defect management. The defect entries actually corresponding to the replacement written data, and writing location information of the next available spare area are written and managed as defect list information for management, or the writing location information of a location where replacement writing is possible is written and managed as defect definition structure information.

64. 发明公开

EP1587083A1 INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING DEVICE 审中-公开
标题翻译：媒体VORRICHTUNG ZUR INFORMATIONSAUFZEICHNUNG
公开(公告)号：EP1587083A1
公开(公告)日：2005-10-19
申请号：EP03786327.1
申请日：2003-12-25
申请人： Pioneer Corporation
发明人： YANAGAWA, Naoharu; c/o Pioneer Corporation , YONE, Tatsuhiro; c/o Pioneer Corporation , KATO, Masahiro; c/o Pioneer Corporation , SHIROTA, Akira; c/o Pioneer Corporation , HORIKAWA, Kunihiko; c/o Pioneer Corporation , MURAMATSU, Eiji; c/o Pioneer Corporation
IPC分类号： G11B7/09
CPC分类号： G11B7/0945 , G11B7/00736 , G11B7/00745 , G11B7/0901 , G11B7/094 , G11B7/24085
摘要： A tracking servo control device for making a tracking servo control to apply a light beam onto a groove track on a recording medium where the groove track and a pre-pit are preformed, is provided with: a first generation device which generates a first regenerative signal based on a reflected light from the recording medium when at least a part of the pre-pit is formed within a radiation range of the light beam onto the groove track; a second generation device which generates a second regenerative signal based on a reflected light from the recording medium when the pre-pit is formed outside the radiation range of the light beam; and a calculation device which calculates an offset value in the tracking servo control based on the first regenerative signal and the second regenerative signal that are generated.
摘要翻译：一种用于进行跟踪伺服控制的跟踪伺服控制装置设置有：第一生成装置，其产生第一再生信号，所述跟踪伺服控制装置用于将光束施加到预定凹槽轨道和预凹坑的记录介质上的凹槽轨道上基于来自所述记录介质的反射光，当所述预制凹坑的至少一部分形成在所述光束到所述凹槽轨道的辐射范围内时; 第二代装置，当在所述光束的辐射范围之外形成所述预制凹坑时，基于来自所述记录介质的反射光产生第二再生信号; 以及计算装置，其基于所生成的第一再生信号和第二再生信号来计算跟踪伺服控制中的偏移值。

65. 发明公开

EP1118982A3 Optical disc, and reading system and manufacturing method of the disc 失效
标题翻译：一种光盘读取系统和方法，用于制造板
公开(公告)号：EP1118982A3
公开(公告)日：2005-07-13
申请号：EP01106059.7
申请日：1996-06-26
申请人： Pioneer Electric Corporation
发明人： Kuroda, Kazuo , Suzuki, Toshio , Muramatsu, Eiji
IPC分类号： G11B7/005 , G11B7/09
CPC分类号： G11B7/131 , G11B7/005 , G11B7/00745 , G11B7/0901 , G11B7/0903 , G11B7/0938 , G11B7/0943 , G11B7/261 , G11B7/263 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B2220/20
摘要： A reading system for reading a writable optical disc (1) having an information writing track (2), a guiding track (3) for introducing a laser beam to the information writing track (2), and prepit information (4) including address information recorded on the guiding track (3), the system comprising: a first photodetector (55) having photodetecting elements divided at least by a first dividing line optically parallel with a tangential direction of the information writing track (2) of the disc for detecting reflected light of a first laser beam irradiated to the information writing track (2), a second photodetector (54) having photodetecting elements divided at least by a second dividing line optically parallel with the tangential direction of the information writing track (2) of the disc for detecting reflected light of a second laser beam irradiated to the guiding track (3), first difference signal producing means (61,62,66) for producing a first difference signal based on a difference between outputs of the photodetecting elements of the first photodetector (55) being divided by the first dividing line, second difference signal producing means (59,60,65) for producing a second difference signal based on a difference between outputs of the photodetecting elements of the second photodetector (54) being divided by the second dividing line, and tracking error signal producing means (77,70) for producing a tracking error signal based on subtracting the second difference signal, a level of which is adjusted, from the first difference signal.

66. 发明公开

EP1533797A1 OPTICAL INFORMATION RECORDING MEDIUM 审中-公开
标题翻译：优惠信息澳大利亚新闻
公开(公告)号：EP1533797A1
公开(公告)日：2005-05-25
申请号：EP03795223.1
申请日：2003-08-14
申请人： Taiyo Yuden Co., Ltd.
发明人： MATSUDA, Isao, c/o Taiyo Yuden Co., Ltd. , HARA, Fumi, c/o Taiyo Yuden Co., Ltd. , HORIKOSHI, Soichi, c/o Taiyo Yuden Co., Ltd.
IPC分类号： G11B7/007 , G11B7/24
CPC分类号： G11B7/24085 , G11B7/00745 , G11B7/24082
摘要： It is an object to provide optical information recording media enabling the recording at high speeds and high densities, such as onto DVD-R discs or similar, of optical information, optimizing the shape of meandering land pre-pits 21, increasing clearness of diffraction of laser light 9 by the land pre-pits 21 to obtain a satisfactory land pre-pit signal, and simultaneously reducing RF readout errors for recorded pits and readout errors for land pre-pits 21, focusing on optimization of the size of the inside protruding portion 23 and outside protruding portion 25 relative to the spot 9S of the laser light 9 with respect to the shape and size of the land pre-pits 21, and when e is the base of natural logarithms, the media is characterized in that the inside edge portions 22 of the inside protruding portion 23 and the outside edge portions 24 of the outside protruding portion 25 of the land pre-pits 21 are positioned within the range of the spot diameter E2 in the 1/e 2 portion of the Gaussian energy distribution of the spot 9S of laser light 9. Further, with respect to the distance L in between the two inside edge portions 22 of the inside protruding portion 23 of the land pre-pits 21, the distance L out between the two outside edge portions 24 of the outside protruding portion 25 of the land pre-pits 21, and the basic length T expressing the lengths of recorded pits, the media is further characterized in that the distances L in and L out are in the range 3T to 6T; that 0.40 µm ≤ L in ≤ 0.80 µm and 0.40 µm ≤ L out ≤ 0.80 µm; and that, when the inside protruding length in the radial direction on the inside of the arc shape of land pre-pits 8 is R in and the outside protruding length is R out , 0.120 µm ≤ R in ≤ 0.182 µm and 0.100 µm ≤ R out ≤ 0.250 µm.
摘要翻译：本发明的目的是提供能够以高速和高密度记录诸如DVD-R光盘或类似的光学信息的光学信息记录介质，优化曲折地面预制凹坑21的形状，增加衍射的清晰度激光9由陆地预制凹坑21获得，以获得令人满意的地面预制凹坑信号，同时减少用于记录坑的RF读出误差和用于陆地预制凹坑21的读出误差，重点是优化内部突出部分的尺寸 23和外部突出部分25相对于激光9的光点9S相对于焊盘预制凹坑21的形状和尺寸，并且当e是自然对数的基础时，介质的特征在于内侧边缘内部突出部分23的部分22和焊盘预制凹坑21的外部突出部分25的外边缘部分24位于G的1 / e 2部分中的光斑直径E2的范围内激光9的光斑9S的高斯能量分布。此外，相对于焊盘预制凹坑21的内侧突出部23的两个内边缘部分22之间的距离Lin，两个外边缘部分之间的距离Lout 介质的特征在于距离Lin和Lout处于3T至6T的范围内，其特征在于，所述基准长度T表示所述凹坑的长度。 0.40亩≤林≤0.80亩，0.40亩≤0.80亩; 并且当在前面凹坑8的圆弧形状的内侧的径向内侧突出长度为Rin，外部突出长度为Rout时，0.120μm≤Rin≤0.182μm，0.100μm≤Ruut ≤0.250亩。

67. 发明授权

EP0920000B1 METHOD FOR MACHINING MASTER OPTICAL DISK AND MASTERING DEVICE 失效
标题翻译：制造方法的主光盘和模具装置
公开(公告)号：EP0920000B1
公开(公告)日：2005-05-04
申请号：EP98919635.7
申请日：1998-05-15
申请人： SEIKO EPSON CORPORATION
发明人： YAMADA, Hideaki
IPC分类号： G11B7/26 , G11B7/135 , G11B7/00
CPC分类号： G11B7/261 , G11B7/00718 , G11B7/00745 , G11B7/24082
摘要： A method for machining a master optical disk which has a physical format and in which a rewritable optical disk constituted of a groove and pre-bit groups records a pre-bit group which is not on the same spiral as that of the groove by shifting the pre-bit group inward by, for example, a 1/2 track pitch from the center of the groove, which method comprises installing a light deflector utilizing an acoustooptic effect or another light deflector (101) utilizing an electrooptic effect on the optical path of a mastering device, thus deflecting one laser beam. This method makes laser beam machining possible at a plurality of arbitrary locations, for example, three locations at the center of the groove and two locations which are respectively shifted inward and outward by a 1/2 track pitch from the center of the groove with one scanning run for machining.

68. 发明授权

EP0899738B1 Information recording and reproducing method and apparatus 失效
标题翻译： Verfahren undGerätzur Informationsaufzeichnung und -wiedergabe
公开(公告)号：EP0899738B1
公开(公告)日：2005-03-23
申请号：EP98117827.0
申请日：1997-07-14
申请人： Hitachi, Ltd.
发明人： Miyamoto, Harukazu , Suzuki, Yoshio , Suzuki, Motoyuki , Sugiyama, Hisataka , Minemura, Hiroyuki , Fushimi, Tetsuya , Tokushuku, Nobuhiro
IPC分类号： G11B7/007 , G11B27/30 , G11B19/20 , G11B7/0045 , G11B7/005
CPC分类号： G11B20/12 , G11B7/0037 , G11B7/004 , G11B7/0045 , G11B7/0053 , G11B7/006 , G11B7/00718 , G11B7/00745 , G11B7/0079 , G11B7/013 , G11B7/0938 , G11B7/24082 , G11B19/20 , G11B19/247 , G11B19/28 , G11B20/10009 , G11B27/19 , G11B27/24 , G11B27/28 , G11B27/3027

69. 发明公开

EP1505577A1 OPTICAL DISC AND METHOD FOR REPRODUCING THE SAME 审中-公开
标题翻译： OPTISCHER DATENTRAGER UND VERFAHREN ZU SEINER WIEDERGABE
公开(公告)号：EP1505577A1
公开(公告)日：2005-02-09
申请号：EP03723341.8
申请日：2003-05-13
申请人： NEC Corporation
发明人： YAMANAKA, Yutaka
IPC分类号： G11B7/005 , G11B7/007 , G11B7/24 , G11B20/12 , G11B20/14
CPC分类号： G11B7/00736 , G11B7/0053 , G11B7/00745 , G11B7/013 , G11B7/24085
摘要： The present invention provides a technique for improving reliability of reading header information.
The optical disk is composed of a recording track. The recording track includes a data recording region in which recording pits are formed for recording data, and a header region in which pre-pits are formed for recording header information identifying said data recording region. Said recording pits have a reflectance smaller than that of a space in which said recording pits are not formed. Said recording pits and said pre-pits are formed so that an amplitude (dynamic range) of a level of an optical signal reflected from said header regions is larger than that of an optical signal reflected from said data recording regions.
摘要翻译：本发明提供了一种用于提高读取标题信息的可靠性的技术。光盘由记录轨道组成。记录轨道包括其中形成记录凹坑用于记录数据的数据记录区域，以及形成预凹坑的标题区域，用于记录识别所述数据记录区域的标题信息。所述记录凹坑的反射率小于不形成所述记录凹坑的空间的反射率。所述记录凹坑和所述预凹坑形成为使得从所述标题区域反射的光信号的电平的幅度（动态范围）大于从所述数据记录区域反射的光信号的幅度（动态范围）。

70. 发明公开

EP1260972A3 Multi-layer information recording medium and information recording and reproducing apparatus 有权
标题翻译：多层信息记录介质和信息记录和再现设备
公开(公告)号：EP1260972A3
公开(公告)日：2005-01-26
申请号：EP02010300.8
申请日：2002-05-21
申请人： Pioneer Corporation
发明人： Ohsawa, Seichi, Corporate R&D Laboratory , Maeda, Takanori, Corporate R&D Laboratory
IPC分类号： G11B7/24
CPC分类号： G11B7/00745 , G11B7/08511 , G11B7/0945 , G11B7/13925 , G11B7/24038 , G11B2007/0006 , G11B2007/0013 , Y10T428/21
摘要： A multi-layer-information-recording medium is applied to an information recording and reproducing apparatus capable of recording or reproducing information on and from either of a single-layer-information-recording medium having a single recording layer on one side, and a multi-layer-information-recording layer having a plurality of recording layers layered on a spacer layer on one side as a change in reflectivity by irradiating a light beam. The multi-layer-information-recording medium is compatible in terms of at least reproducing and recording with a single-layer-information-recording medium having a cover layer having a predetermined refractive index "n" and a thickness "t" disposed on a recording layer on a light incident side surface. The multi-layer-information-recording medium includes a deepest recording layer deepest from the light incident side surface. The deepest recording layer is formed at an optical distance d1 from the light incident side surface satisfying an equation d1 = nt. The multi-layer-information-recording medium also includes at least one shallow recording layer formed at an optical distance d2 satisfying an inequality d2

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