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公开(公告)号：EP1335373A1
公开(公告)日：2003-08-13
申请号：EP03010321.2
申请日：1997-07-31
CPC分类号： G11B20/10009 , G11B20/10 , G11B20/1426 , H03M5/145
摘要： The code conversion method of the present invention includes the steps of: scrambling an input main data unit based on any of plural types of pseudo-random number sequences; modulating the scrambled main data unit based on any of plural types of modulation data; producing an output main data unit from the modulated main data unit; obtaining a calculated value representing a difference between a number of 0 bits and a number of 1 bits included in the output main data unit; and selecting any of the modulation data dependent upon the calculated value. The code conversion method of the present invention is characterized by further including the steps of: determining whether or not a variation of the calculated value has exceeded a predetermined threshold value; newly selecting another pseudo-random number sequence used for the step of scrambling if it is determined that the variation of the calculated value has exceeded the predetermined threshold value; and re-scrambling the input main data unit based on the newly selected pseudo-random number sequence.
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12.发明公开Code conversion method and apparatus, code recording medium, code recording apparatus and code reproducing apparatus 失效Kodeumsetzungsverfahren和装置Kodeaufzeichnungsmedium，Kodeaufzeichnungsvorrichtung和Kodewiedergabevorrichtung
公开(公告)号：EP1335372A1
公开(公告)日：2003-08-13
申请号：EP03010317.0
申请日：1997-07-31
CPC分类号： G11B20/10009 , G11B20/10 , G11B20/1426 , H03M5/145
摘要： The code conversion method of the present invention includes the steps of: scrambling an input main data unit based on any of plural types of pseudo-random number sequences; modulating the scrambled main data unit based on any of plural types of modulation data; producing an output main data unit from the modulated main data unit; obtaining a calculated value representing a difference between a number of 0 bits and a number of 1 bits included in the output main data unit; and selecting any of the modulation data dependent upon the calculated value. The code conversion method of the present invention is characterized by further including the steps of: determining whether or not a variation of the calculated value has exceeded a predetermined threshold value; newly selecting another pseudo-random number sequence used for the step of scrambling if it is determined that the variation of the calculated value has exceeded the predetermined threshold value; and re-scrambling the input main data unit based on the newly selected pseudo-random number sequence.
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13.发明公开Code conversion method and apparatus, code recording medium, code recording apparatus and code reproducing apparatus 失效代码转换方法和装置，代码记录介质，代码记录装置和代码再现装置
公开(公告)号：EP0822555A3
公开(公告)日：2002-04-03
申请号：EP97113214.7
申请日：1997-07-31
CPC分类号： G11B20/10009 , G11B20/10 , G11B20/1426 , H03M5/145
摘要： The code conversion method of the present invention includes the steps of: scrambling an input main data unit based on any of plural types of pseudo-random number sequences; modulating the scrambled main data unit based on any of plural types of modulation data; producing an output main data unit from the modulated main data unit; obtaining a calculated value representing a difference between a number of 0 bits and a number of 1 bits included in the output main data unit; and selecting any of the modulation data dependent upon the calculated value. The code conversion method of the present invention is characterized by further including the steps of: determining whether or not a variation of the calculated value has exceeded a predetermined threshold value; newly selecting another pseudo-random number sequence used for the step of scrambling if it is determined that the variation of the calculated value has exceeded the predetermined threshold value; and re-scrambling the input main data unit based on the newly selected pseudo-random number sequence.
摘要翻译： 本发明的代码转换方法包括以下步骤：基于多种类型的伪随机数序列中的任何一种对输入主数据单元进行加扰; 基于多种类型的调制数据中的任何一种调制加扰的主数据单元; 从调制的主数据单元产生输出主数据单元; 获得表示包括在输出主数据单元中的0位数和1位数之间的差值的计算值; 并根据计算出的值选择任何调制数据。 本发明的代码转换方法的特征在于还包括以下步骤：确定计算值的变化是否超过预定阈值; 如果确定所述计算值的变化量已经超过所述预定阈值，则重新选择用于所述加扰步骤的另一伪随机数序列; 以及基于新选择的伪随机数序列重新加扰输入主数据单元。
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公开(公告)号：EP0973156B1
公开(公告)日：2000-12-20
申请号：EP99119777.3
申请日：1997-10-24
发明人： Ishida, Takashi , Tanaka, Shin-ichi , Mutoh, Akira , Takemura, Yoshinari , Ohara, Shunji , Satoh, Isao
CPC分类号： G11B7/0938 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/24082 , G11B27/19 , G11B27/3027 , G11B2220/20 , G11B2220/211
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公开(公告)号：EP0867874A3
公开(公告)日：1999-03-17
申请号：EP98110772.5
申请日：1995-12-27
发明人： Moriya, Mitsurou , Taniguchi, Hiroshi , Tanaka, Shin-ichi , Nagashima, Michiyoshi , Sugihara, Yasuhiro
CPC分类号： G11B7/253 , C09K21/14 , G11B7/0037 , G11B7/00454 , G11B7/24 , G11B7/24038 , G11B7/243 , G11B7/2533 , G11B7/254 , G11B7/256 , G11B7/257 , G11B7/258 , G11B7/2585 , G11B7/2595 , G11B7/26 , G11B7/266 , G11B23/40 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , Y10S428/913 , Y10S430/146 , Y10T428/12674 , Y10T428/21
摘要： The present invention relates to an optical recording medium (301) which comprises: a first and a second substrates (304, 307) having respectively a first and second information surfaces (305, 308); a semitransparent reflection film (306) and a reflection film (309) respectively formed on the first and the second information surfaces (305, 308); and an adhesive layer (310) for adhering the first substrate (304) and the second substrate (307) so that the first information surface (305) of the first substrate (304) faces a surface of the second substrate (307) opposite to the second information surface (308), wherein the thickness of the first substrate (304) is substantially the same as the thickness of the second substrate (307), and wherein the first information surface (305) records first information so that the first information is read from the first substrate (304) side, and the second information surface (308) records second information so that the second information is read from the second substrate (307) side through the first substrate (304), the semitransparent reflection film (306) and the adhesive layer (310).
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16.发明公开Optical disk and method for recording and reproducing write-once information on and from optical disk 失效光盘，记录的方法和对从一个时间可写光盘再现信息
公开(公告)号：EP1589532A3
公开(公告)日：2008-06-25
申请号：EP05015971.4
申请日：1997-12-17
发明人： Oshima, Mitsuaki , Tanaka, Shin-ichi , Konishi, Shinichi , Koishi, Kenji , Gotoh, Yoshiho , Moriya, Mitsurou , Takemura, Yoshinari , Miyatake, Norio , Murakami, Motoyoshi
IPC分类号： G11B11/10 , G11B7/00 , G06F12/14 , G11B20/00 , G11B7/24 , G11B7/007 , G11B23/28 , G11B19/04 , G06F1/00 , G06T1/00 , G11B20/12 , G11B23/40
CPC分类号： G11B23/281 , G06T1/0021 , G06T2201/0064 , G11B7/0037 , G11B7/0045 , G11B7/00736 , G11B7/24 , G11B11/10506 , G11B11/10515 , G11B11/10584 , G11B11/10595 , G11B20/00086 , G11B20/00123 , G11B20/00166 , G11B20/00181 , G11B20/0021 , G11B20/00231 , G11B20/0026 , G11B20/00268 , G11B20/00347 , G11B20/00876 , G11B20/00884 , G11B20/10 , G11B20/1217 , G11B20/1258 , G11B23/288 , G11B23/40 , G11B2020/122 , G11B2020/1244 , G11B2020/1245
摘要： An optical disk storing write-once information usable for protecting the copyright of the software by preventing the duplication, unauthorized use, etc., of the software. In the optical disk, a recording layer (213) is formed on a disk substrate (211) with a dielectric layer (212) inbetween. Then, an intermediate dielectric layer (214) and a reflecting layer (215) are successively laminated upon the recording layer (213), and an overcoat layer (216) is formed on the surface of the reflecting layer (215). A plurality of BCA (one of write-once identification information systems) sections (220a and 220b) are recorded by lowering the vertical magnetic anisotropy of the recording layer (213). At the time of reproduction, the write-once information is detected from differential signals.
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公开(公告)号：EP1564990A3
公开(公告)日：2008-04-16
申请号：EP05003187.1
申请日：2005-02-15
发明人： Yamaoka, Masaru , Tanaka, Shin-ichi , Usui, Makoto , Mushika, Yoshihiro , Shihara, Tetsuya , Nakamura, Tadashi
CPC分类号： H04N7/106 , H04L41/08 , H04N5/765 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/907 , H04N7/163 , H04N21/4135 , H04N21/43615 , H04N21/462
摘要： An equipment management system is provided in which: two exchangeable record-medium recording units and an exchangeable record-medium regeneration unit are connected via an in-house network, so that they can communicate with each other; and one of these pieces of equipment is master equipment which manages resource information on the pieces of equipment, and the other pieces of equipment are slave equipment which is controlled by the master equipment.
摘要翻译： 提供了一种设备管理系统，其中：两个可更换的记录介质记录单元和一个可更换的记录介质再生单元通过内部网络连接，以便它们可以相互通信; 这些设备中的一个是管理该设备上的资源信息的主设备，而其他设备是由主设备控制的从设备。
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18.发明公开
公开(公告)号：EP1445770A1
公开(公告)日：2004-08-11
申请号：EP04009520.0
申请日：1997-12-17
发明人： Oshima, Mitsuaki , Konishi, Shinichi , Tanaka, Shin-ichi , Koishi, Kenji , Moriya, Mitsurou , Gotoh, Yoshiho , Takemura, Yoshinari , Miyatake, Norio , Murakami, Motoyoshi
IPC分类号： G11B11/10
CPC分类号： G11B23/281 , G06T1/0021 , G06T2201/0064 , G11B7/0037 , G11B7/0045 , G11B7/00736 , G11B7/24 , G11B11/10506 , G11B11/10515 , G11B11/10584 , G11B11/10595 , G11B20/00086 , G11B20/00123 , G11B20/00166 , G11B20/00181 , G11B20/0021 , G11B20/00231 , G11B20/0026 , G11B20/00268 , G11B20/00347 , G11B20/00876 , G11B20/00884 , G11B20/10 , G11B20/1217 , G11B20/1258 , G11B23/288 , G11B23/40 , G11B2020/122 , G11B2020/1244 , G11B2020/1245
摘要： An optical disk comprising a magnetic recording layer may be used to protect software copyright by preventing the duplication, unauthorised use, etc., of the software. Write-once information is formed on the optical disk by first recording areas and second recording areas in a predetermined portion of the recording layer. The recording layers have different magnetic anisotropies in a direction perpendicular to a surface of the magnetic layer.
In a method and apparatus for reproducing write-once information from an optical disk, linearly polarised laser light is irradiated onto the predetermined portion of an optical disk and a change in polarisation orientation of light transmitted or reflected from the optical disk is detected in accordance with the recording signal on the optical disk, allowing write-once information to be reproduced from the optical disk.摘要翻译： 一种光盘，包括一个磁性记录层可用于通过防止软件的复制，未经授权使用，等等，来保护软件的版权。 一次写入信息是由在记录层的预定部分的第一记录区域和第二记录区域的光盘上形成的。 所述记录层具有沿垂直于所述磁性层的一个表面的不同的磁各向异性。 在用于再现来自光盘上写一次信息的方法和装置，线偏振激光照射到光盘的预定部分和在光反式mitted偏振方向的变化或反射来自光盘是 在与光盘上的记录信号雅舞蹈检测，一次写入允许从光盘再现的信息。
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公开(公告)号：EP0973158B1
公开(公告)日：2000-11-08
申请号：EP99119782.3
申请日：1997-10-24
发明人： Ishida, Takashi , Tanaka, Shin-ichi , Mutoh, Akira , Takemura, Yoshinari , Ohara, Shunji , Satoh, Isao
CPC分类号： G11B7/0938 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/24082 , G11B27/19 , G11B27/3027 , G11B2220/20 , G11B2220/211
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20.发明公开Aberration detection device and optical information recording and reproducing apparatus 审中-公开像差检测装置和光学信息记录和再现装置
公开(公告)号：EP0984440A3
公开(公告)日：2000-05-24
申请号：EP99117168.7
申请日：1999-09-01
发明人： Saimi, Tetsuo , Tanaka, Shin-ichi
CPC分类号： G11B7/1353 , G11B7/131 , G11B7/1369 , G11B7/1378 , G11B7/13927 , G11B2007/0013
摘要： A returning light beam emitted by a light source (101) and reflected by an optical disk (106) is separated by a half mirror (102), and partitioned and deflected at a hologram (109) into a light beam passing a first region and a light beam passing a second region. The light beam passing the first region is received by a plurality of photo-detectors (107), and the aberration is detected by comparing the resulting signals. Based on the aberration detection, the aberration of an optical system can be reduced by driving an aberration correction element (104) in real-time.
摘要翻译： 由光源（101）发射并被光盘（106）反射的返回光束被半反射镜（102）分离，并且在全息图（109）处被分隔和偏转成通过第一区域的光束，并且 光束通过第二区域。 通过第一区域的光束被多个光电检测器（107）接收，并且通过比较得到的信号来检测像差。 基于像差检测，通过实时驱动像差校正元件（104）可以减小光学系统的像差。
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