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21. 发明授权

US5684772A Magneto-optical disc recording and reproducing system with level clamping 失效
标题翻译：具有电平钳位的磁光盘记录和再现系统
公开(公告)号：US5684772A
公开(公告)日：1997-11-04
申请号：US468234
申请日：1995-06-06
申请人： Tamotsu Yamagami , Tetsuji Kawashima
发明人： Tamotsu Yamagami , Tetsuji Kawashima
IPC分类号： G11B7/00 , G11B7/005 , G11B11/10 , G11B11/105 , G11B20/10 , G11B20/12 , G11B27/19 , G11B27/30
CPC分类号： G11B11/10515 , G11B20/10009 , G11B20/1217 , G11B27/19 , G11B27/3027 , G11B2220/2525
摘要： A system of recording/reproducing data on and from a spiral or concentric track formed on a magneto-optical disc, in which a data recording area of the track is divided into a predetermined number of blocks. A reference data recording area is provided at a predetermined position of each of the blocks, in which continuous several bit data each of a high or low level is recorded, and, upon reproducing, a reproduced radio frequency signal is clamped at a signal level serving as a clamping level which is obtained by reproducing the data on the reference data recording area.
摘要翻译：在磁光盘上形成的螺旋或同心轨道上记录/再现数据的系统，其中轨道的数据记录区被划分成预定数量的块。参考数据记录区域设置在每个块的预定位置，其中记录有高或低电平的连续的几个位数据，并且在再现时，再现的射频信号被钳位在服务的信号电平作为通过再现基准数据记录区域上的数据而获得的钳位电平。

22. 发明授权

US5311491A Method of data recording for optical disc having burst modulated track 失效
标题翻译：具有突发调制轨迹的光盘的数据记录方法
公开(公告)号：US5311491A
公开(公告)日：1994-05-10
申请号：US585177
申请日：1990-09-20
申请人： Tamotsu Yamagami , Yoichiro Sako
发明人： Tamotsu Yamagami , Yoichiro Sako
IPC分类号： G11B7/007 , G11B7/09 , G11B11/105 , G11B5/09
CPC分类号： G11B7/0938 , G11B7/24082 , G11B11/10578
摘要： A method of recording information is provided, in which a first signal is recorded along the length of a recording track previously formed on a recording medium. On the recording track, a second signal is prerecorded by offsetting the track along its width. During the recording of the first signal, the points of transition of the first signal are positioned so as to be spaced apart from, and therefore unaffected by, the points of transition of the second signal. Also, by including a clock synchronization signal in the first signal, PLL capture may be achieved accurately in a shorter time. In addition, the unit of phase shift between the channel clock of the first signal and the channel clock of the second signal is set to be shorter than the channel clock bit. A data recording method and an optical data recording method are also provided, which may be suitably applied to a magneto-optical disc or the like. The data are previously modulated by a modulation system satisfying a predetermined rule of modulation and include connection bits between adjacent units of the modulated data by way of further modulation. Control information is recorded by offsetting the track along its width, while the points of transition of the track along its width coincide with the recording region for the connecting bits, since the latter are not part of the main signal information.
摘要翻译：提供了一种记录信息的方法，其中沿着预先形成在记录介质上的记录轨道的长度记录第一信号。在记录轨道上，通过沿其宽度偏移轨迹来预先记录第二信号。在记录第一信号期间，第一信号的转变点被定位成与第二信号的转变点间隔开，并且不受第二信号的转变点的影响。此外，通过在第一信号中包括时钟同步信号，可以在更短的时间内精确地实现PLL捕获。此外，将第一信号的通道时钟与第二信号的通道时钟之间的相移单位设置为短于通道时钟位。还提供了数据记录方法和光学数据记录方法，其可以适用于磁光盘等。数据预先由满足预定调制调制方式的调制系统调制，并通过进一步调制包括调制数据的相邻单元之间的连接位。通过沿着其宽度偏移轨道来记录控制信息，而轨道沿其宽度的转变点与用于连接位的记录区域重合，因为后者不是主信号信息的一部分。

23. 发明授权

US4800549A Method and apparatus for seeking target address with error check code 失效
标题翻译：用错误检查码寻找目标地址的方法和装置
公开(公告)号：US4800549A
公开(公告)日：1989-01-24
申请号：US47699
申请日：1987-05-06
申请人： Tamotsu Yamagami , Yoichiro Sako
发明人： Tamotsu Yamagami , Yoichiro Sako
IPC分类号： G11B27/10 , G11B7/085 , G11B20/18 , G11B21/08 , G11B27/30 , G11B7/00 , G11B21/00
CPC分类号： G11B7/08505 , G11B20/1803 , G11B20/1813 , G11B21/083 , G11B27/105 , G11B27/3027 , G11B2020/10916 , G11B2220/17 , G11B2220/20 , G11B2220/2525 , G11B2220/2537 , G11B27/102
摘要： A method and an apparatus for seeking a target address having an appended error check code are disclosed. According to the invention, when seeking a target address on a record medium on which the recorded data are divided into plural blocks in correlation with an address for each block and an error check code for each address, the error check code to be appended to the address is formed from the target address. The target address and the error check code derived from the target address are compared to the address having the error check code reproduced from the record medium. When the result of such comparison has revealed that the error is within the symbol or bit number that can be corrected by the error check code, the address read from the record medium is determined to be the target address.
摘要翻译：公开了一种用于寻找具有附加的错误校验码的目标地址的方法和装置。根据本发明，在将记录数据与每个块的地址相关地记录在多个块中的记录介质上寻找目标地址和每个地址的错误校验码时，附加到地址由目标地址形成。将从目标地址导出的目标地址和错误校验码与从记录介质再现的具有错误校验码的地址进行比较。当这种比较的结果表明错误在可以通过错误校验码校正的符号或位数内时，将从记录介质读取的地址确定为目标地址。

24. 发明授权

US07965604B2 Method of, and apparatus for, recording address information to disc medium 有权
标题翻译：将地址信息记录到盘介质的方法和装置
公开(公告)号：US07965604B2
公开(公告)日：2011-06-21
申请号：US12183789
申请日：2008-07-31
申请人： Shoei Kobayashi , Nobuyoshi Kobayashi , Tamotsu Yamagami , Shinichiro Iimura
发明人： Shoei Kobayashi , Nobuyoshi Kobayashi , Tamotsu Yamagami , Shinichiro Iimura
IPC分类号： G11B7/00
CPC分类号： G11B27/24 , G11B7/0053 , G11B7/24082 , G11B20/1833 , G11B27/19
摘要： In step S1, the address generator generates address information composed of a sync signal which is recorded on an optical disc, address data and an error correction code for the address data, pre-encodes and supplies it to a modulator. At the same time, a carrier signal generator generates a carrier signal which is to carry the address information, and supplies it to the modulator. In step S2, the modulator makes MSK modulation of the carrier signal supplied from the carrier signal generator on the basis of the pre-encoded address information supplied from the address generator, and supplies a resultant MSK modulation signal to a wobbling unit. In step S3, the wobbling unit forms, on the optical disc, a spiral groove wobbled adaptively to the MSK modulation signal supplied from the modulator. In this optical disc, a given address can be accessed quickly and accurately.
摘要翻译：在步骤S1中，地址发生器产生由记录在光盘上的同步信号，地址数据和地址数据的纠错码组成的地址信息，并对其进行编码并将其提供给调制器。同时，载波信号发生器产生携带地址信息的载波信号，并将其提供给调制器。在步骤S2中，调制器根据从地址发生器提供的预先编码的地址信息，对从载波信号发生器提供的载波信号进行MSK调制，并将得到的MSK调制信号提供给摆动单元。在步骤S3中，摆动单元在光盘上形成自适应于从调制器提供的MSK调制信号摆动的螺旋槽。在该光盘中，可以快速准确地访问给定的地址。

25. 发明授权

US07698622B2 Information recording device and method, information reproducing device and method, recording medium, program, and disc recording medium 有权
标题翻译：信息记录装置和方法，信息再现装置和方法，记录介质，程序和盘记录介质
公开(公告)号：US07698622B2
公开(公告)日：2010-04-13
申请号：US11736817
申请日：2007-04-18
申请人： Shoei Kobayashi , Susumu Senshu , Tamotsu Yamagami , Makoto Usui , Hideshi Ishihara , Mitsurou Moriya , Cornelis Marinus Schep , Jakob Gerrit Nijboer , Aalbert Stek
发明人： Shoei Kobayashi , Susumu Senshu , Tamotsu Yamagami , Makoto Usui , Hideshi Ishihara , Mitsurou Moriya , Cornelis Marinus Schep , Jakob Gerrit Nijboer , Aalbert Stek
IPC分类号： H03M13/00
CPC分类号： G11B7/00736 , G11B20/00086 , G11B20/00268 , G11B20/1252 , G11B20/18 , G11B20/1833 , G11B2020/122 , G11B2020/1222 , G11B2020/1287 , G11B2220/2537 , G11B2220/2562
摘要： An ECC block is constituted by RS(248, 216, 33). Of a data length of 216 bytes (symbols), only 16 bytes are allocated to BCA data and the remaining 200 bytes are used for fixed data having a predetermined value. Using the fixed data of 200 bytes and the BCA data of 16 bytes, parities of 32 bytes (symbols) are calculated. Only the BCA data of 16 bytes and the parities of the former 16 bytes of the 32-byte parities, that is, a total of 32 bytes only, are recorded in a burst cutting area of an optical disc. In decoding, error correction processing is carried out by using the fixed data of 200 bytes. The unrecorded parities of 16 bytes are processed as having been erased. Thus, the error correction capability in a burst cutting area of an optical disc can be improved.
摘要翻译： ECC块由RS（248,216,33）构成。在216字节（符号）的数据长度中，只有16字节被分配给BCA数据，剩余的200字节用于具有预定值的固定数据。使用200字节的固定数据和16字节的BCA数据，计算32字节（符号）的奇偶校验。只有16字节的BCA数据和32字节奇偶校验的前16个字节的奇偶校验，即仅总共32个字节的奇偶校验数据被记录在光盘的突发切割区域中。在解码中，通过使用200字节的固定数据来执行纠错处理。 16字节的未记录奇偶校验被处理为已被擦除。因此，可以提高光盘的突发切割区域中的纠错能力。

26. 发明申请

US20080291794A1 METHOD OF, AND APPARATUS FOR, RECORDING ADDRESS INFORMATION TO DISC MEDIUM 有权
标题翻译：用于记录DISC介质的地址信息的方法和装置
公开(公告)号：US20080291794A1
公开(公告)日：2008-11-27
申请号：US12183789
申请日：2008-07-31
申请人： Shoei Kobayashi , Nobuyoshi Kobayashi , Tamotsu Yamagami , Shinichiro Iimura
发明人： Shoei Kobayashi , Nobuyoshi Kobayashi , Tamotsu Yamagami , Shinichiro Iimura
IPC分类号： G11B5/09
CPC分类号： G11B27/24 , G11B7/0053 , G11B7/24082 , G11B20/1833 , G11B27/19
摘要： In step S1, the address generator generates address information composed of a sync signal which is recorded on an optical disc, address data and an error correction code for the address data, pre-encodes and supplies it to a modulator. At the same time, a carrier signal generator generates a carrier signal which is to carry the address information, and supplies it to the modulator. In step S2, the modulator makes MSK modulation of the carrier signal supplied from the carrier signal generator on the basis of the pre-encoded address information supplied from the address generator, and supplies a resultant MSK modulation signal to a wobbling unit. In step S3, the wobbling unit forms, on the optical disc, a spiral groove wobbled adaptively to the MSK modulation signal supplied from the modulator. In this optical disc, a given address can be accessed quickly and accurately.
摘要翻译：在步骤S1中，地址发生器产生由记录在光盘上的同步信号，地址数据和地址数据的纠错码组成的地址信息，并对其进行编码并将其提供给调制器。同时，载波信号发生器产生携带地址信息的载波信号，并将其提供给调制器。在步骤S2中，调制器根据从地址发生器提供的预先编码的地址信息，对从载波信号发生器提供的载波信号进行MSK调制，并将得到的MSK调制信号提供给摆动单元。在步骤S3中，摆动单元在光盘上形成自适应于从调制器提供的MSK调制信号摆动的螺旋槽。在该光盘中，可以快速准确地访问给定的地址。

27. 发明授权

US07414932B2 Method of, and apparatus for, recording address information to disc medium 失效
标题翻译：将地址信息记录到盘介质的方法和装置
公开(公告)号：US07414932B2
公开(公告)日：2008-08-19
申请号：US11488751
申请日：2006-07-19
申请人： Shoei Kobayashi , Nobuyoshi Kobayashi , Tamotsu Yamagami , Shinichiro Iimura
发明人： Shoei Kobayashi , Nobuyoshi Kobayashi , Tamotsu Yamagami , Shinichiro Iimura
IPC分类号： G11B7/007
CPC分类号： G11B27/24 , G11B7/0053 , G11B7/24082 , G11B20/1833 , G11B27/19
摘要： In step S1, the address generator generates address information composed of a sync signal which is recorded on an optical disc, address data and an error correction code for the address data, pre-encodes and supplies it to a modulator. At the same time, a carrier signal generator generates a carrier signal which is to carry the address information, and supplies it to the modulator. In step S2, the modulator makes MSK modulation of the carrier signal supplied from the carrier signal generator on the basis of the pre-encoded address information supplied from the address generator, and supplies a resultant MSK modulation signal to a wobbling unit. In step S3, the wobbling unit forms, on the optical disc, a spiral groove wobbled adaptively to the MSK modulation signal supplied from the modulator. In this optical disc, a given address can be accessed quickly and accurately.
摘要翻译：在步骤S1中，地址发生器产生由记录在光盘上的同步信号，地址数据和地址数据的纠错码组成的地址信息，对编码进行预编码并将其提供给调制器。同时，载波信号发生器产生携带地址信息的载波信号，并将其提供给调制器。在步骤S2中，调制器基于从地址发生器提供的预先编码的地址信息，对从载波信号发生器提供的载波信号进行MSK调制，并将得到的MSK调制信号提供给摆动单元。在步骤S3中，摆动单元在光盘上形成自适应于从调制器提供的MSK调制信号摆动的螺旋槽。在该光盘中，可以快速准确地访问给定的地址。

28. 发明授权

US06335912B1 Optical information recording apparatus, method for recording optical information, optical information recording medium, optical information processing apparatus, and method for accessing optical information recording medium 失效
标题翻译：光信息记录装置，用于记录光信息的方法，光信息记录介质，光信息处理装置和用于访问光信息记录介质的方法
公开(公告)号：US06335912B1
公开(公告)日：2002-01-01
申请号：US09626716
申请日：2000-07-27
申请人： Seiji Kobayashi , Tamotsu Yamagami
发明人： Seiji Kobayashi , Tamotsu Yamagami
IPC分类号： G11B700
CPC分类号： G11B19/122 , G11B7/0045 , G11B7/0053 , G11B7/00736 , G11B7/26 , G11B20/00086 , G11B20/10 , G11B20/14 , G11B20/18
摘要： An optical information recording apparatus detects an irradiated position by a laser beam, and modulating additional information in accordance with a track address and angular information as the results of the position detecting to record the modulated additional information at a prescribed position on an optical information recording medium.
摘要翻译：光信息记录装置通过激光束检测照射位置，并且根据轨迹地址和角度信息调制附加信息作为位置检测的结果，以将调制的附加信息记录在光信息记录介质上的规定位置。

29. 发明授权

US06292451B1 Optical disc and optical disc driving device 失效
标题翻译：光盘和光盘驱动装置
公开(公告)号：US06292451B1
公开(公告)日：2001-09-18
申请号：US09686319
申请日：2000-10-10
申请人： Tobita Minoru , Goru Fujita , Satoshi Otsuka , Tamotsu Yamagami
发明人： Tobita Minoru , Goru Fujita , Satoshi Otsuka , Tamotsu Yamagami
IPC分类号： G11B509
CPC分类号： G11B27/329 , G11B7/00745 , G11B11/10565 , G11B11/10578 , G11B11/10595 , G11B11/10597 , G11B13/04 , G11B19/02 , G11B19/12 , G11B19/28 , G11B20/1258 , G11B21/083 , G11B27/19 , G11B27/3027 , G11B2020/1232 , G11B2020/1265 , G11B2020/1267 , G11B2020/1285 , G11B2020/1287 , G11B2220/20 , G11B2220/218 , G11B2220/2525 , G11B2220/2537
摘要： An optical disk having a plurality of substantially concentric tracks, each of which includes a plurality of segments each comprising a servo area ARs provided with servo pits for giving servo information to a disk drive and a data area ARd. Identification marks SGM, ADM, STM1, STM2 are recorded in the servo area ARs. The identification marks SGM, ADM, STM1, STM2 provide information for identifying the respective segments depending on the recording position in the servo area ARs.
摘要翻译：一种具有多个基本上同心的轨道的光盘，每个轨道包括多个段，每个段包括具有用于向盘驱动器和数据区域ARd提供伺服信息的伺服凹坑的伺服区域AR。识别标记SGM，ADM，STM1，STM2记录在伺服区AR中。识别标记SGM，ADM，STM1，STM2根据伺服区域AR中的记录位置提供用于识别各个段的信息。

30. 发明授权

US5978333A Recording/reproducing apparatus and method 失效
公开(公告)号：US5978333A
公开(公告)日：1999-11-02
申请号：US807767
申请日：1997-02-27
申请人： Shoei Kobayashi , Toru Takeda , Tamotsu Yamagami
发明人： Shoei Kobayashi , Toru Takeda , Tamotsu Yamagami
IPC分类号： G11B7/00 , G11B7/005 , G11B7/007 , G11B20/12 , G11B27/19 , G11B27/30
CPC分类号： G11B7/0053 , G11B27/19 , G11B27/3027 , G11B7/007 , G11B20/1258 , G11B7/24082
摘要： An information recording/reproducing apparatus wherein exact reproduction of both wobbled address information and sync information can be realized in a recording mode as well as in a reproduction mode. The apparatus comprises first and second detectors for detecting two diametrical side portions of each track on a recording medium where a pregroove is modulated correspondingly to address information and sync information of mutually different frequency bands; a calculator for calculating a normalized track information signal on the basis of the outputs of the first and second detectors; and a third detector for detecting the address information and/or the sync signal on the basis of the output of the calculator.

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