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1. 发明公开

EP1274172A2 Digital signal modulation method and apparatus, encoding method and apparatus, storage medium, transmission apparatus and program 审中-公开
标题翻译： Digitales Signalmodulationsverfahren und Apparat，Kodierungsverfahren und Apparat，Speichermedium，Übertragungsapparatund Programm
公开(公告)号：EP1274172A2
公开(公告)日：2003-01-08
申请号：EP02014016.6
申请日：2002-06-27
申请人： VICTOR COMPANY OF JAPAN, LTD.
发明人： Hayami, Atsushi , Oki, Tsuyoshi , Kuroiwa, Toshio
IPC分类号： H03M5/12 , H03M5/14
CPC分类号： H03M5/145 , G11B20/1426
摘要： First and second synchronous words having respective numbers of times of inversion different from each other in NRZI conversion are generated in a synchronous word generation portion (123), and first and second code word series data are generated by arranging code word data generated making reference to a run-length coding table after these two synchronous words. With respect to the first and second code word series data, DSV calculation results stored in two DSV calculation peak value memories (126, 127) corresponding to these data are compared with each other by a peak value comparison portion (129). Based on a comparison result, the code word series data having a smaller direct-current component generated in NRZI conversion is selected.
摘要翻译：在同步字产生部分（123）中产生在NRZI转换中具有彼此不同的反转次数的第一和第二同步字，并且通过将生成的代码字数据排列成参考，生成第一和第二码字序列数据这两个同步字之后的游程编码表。对于第一和第二码字序列数据，存储在与这些数据相对应的两个DSV计算峰值存储器（126,127）中的DSV计算结果通过峰值比较部分（129）相互比较。基于比较结果，选择在NRZI转换中生成的具有较小直流分量的码字序列数据。

2. 发明公开

EP1229659A3 Synchronous signal generating method, recording apparatus, transmitting apparatus, recording medium, and transmission medium 有权
标题翻译：同步信号产生方法，记录装置，传送装置，记录介质，传输介质和
公开(公告)号：EP1229659A3
公开(公告)日：2005-10-19
申请号：EP02001945.1
申请日：2002-02-01
申请人： VICTOR COMPANY OF JAPAN, LTD.
发明人： Oki, Tsuyoshi , Hayami, Atsushi
IPC分类号： H03M5/14 , G11B27/30
CPC分类号： H03M7/46 , G11B20/1426 , G11B27/3027 , G11B2220/2562 , H03M5/145
摘要： There is disclosed a synchronous signal generating method, recording apparatus (10), transmitting apparatus (14), recording medium (20) and transmission medium (21) in which a plurality of coding tables (123) is used to convert an input data word of p-bits to a code word of q-bits (q>p), and a code word string obtained by directly coupling the code words is recorded and reproduced in a recording medium (20) such as an optical disk and magnetic disk, or transmitted via a transmitting portion (15). A synchronous frame consists of a synchronous signal and the cord word string satisfying restriction on minimum run length and maximum run length. The synchronous signal is separable from the code word string satisfying a predetermined run length restriction rule, and is constituted with a specific code for identifying its position in one sector, and a synchronous pattern consisting of a first bit pattern having a run length longer than the maximum run length of the predetermined run length restriction rule by IT or more, and a following second bit pattern having a run length longer than the minimum run length.

3. 发明授权

EP1229659B1 Synchronous signal generating method, recording apparatus, transmitting apparatus, recording medium, and transmission medium 有权
标题翻译：同步信号产生方法，记录装置，传送装置，记录介质，传输介质和
公开(公告)号：EP1229659B1
公开(公告)日：2007-04-04
申请号：EP02001945.1
申请日：2002-02-01
申请人： VICTOR COMPANY OF JAPAN, LTD.
发明人： Oki, Tsuyoshi , Hayami, Atsushi
IPC分类号： H03M5/14 , G11B27/30
CPC分类号： H03M7/46 , G11B20/1426 , G11B27/3027 , G11B2220/2562 , H03M5/145

4. 发明公开

EP1274172A3 Digital signal modulation method and apparatus, encoding method and apparatus, storage medium, transmission apparatus and program 审中-公开
标题翻译：数字信号调制方法和设备，编码方法和设备，存储介质，传送装置和节目
公开(公告)号：EP1274172A3
公开(公告)日：2005-02-02
申请号：EP02014016.6
申请日：2002-06-27
申请人： VICTOR COMPANY OF JAPAN, LTD.
发明人： Hayami, Atsushi , Oki, Tsuyoshi , Kuroiwa, Toshio
IPC分类号： H03M5/12 , H03M5/14
CPC分类号： H03M5/145 , G11B20/1426
摘要： First and second synchronous words having respective numbers of times of inversion different from each other in NRZI conversion are generated in a synchronous word generation portion (123), and first and second code word series data are generated by arranging code word data generated making reference to a run-length coding table after these two synchronous words. With respect to the first and second code word series data, DSV calculation results stored in two DSV calculation peak value memories (126, 127) corresponding to these data are compared with each other by a peak value comparison portion (129). Based on a comparison result, the code word series data having a smaller direct-current component generated in NRZI conversion is selected.

5. 发明公开

EP1229659A2 Synchronous signal generating method, recording apparatus, transmitting apparatus, recording medium, and transmission medium 有权
标题翻译：同步Signalerzeugungsverfahren，Aufzeichnungsapparat，Übertragungsapparat，Aufzeichnungsträger，undÜbertragungsträger
公开(公告)号：EP1229659A2
公开(公告)日：2002-08-07
申请号：EP02001945.1
申请日：2002-02-01
申请人： VICTOR COMPANY OF JAPAN, LTD.
发明人： Oki, Tsuyoshi , Hayami, Atsushi
IPC分类号： H03M5/14 , G11B27/30
CPC分类号： H03M7/46 , G11B20/1426 , G11B27/3027 , G11B2220/2562 , H03M5/145
摘要： There is disclosed a synchronous signal generating method, recording apparatus (10), transmitting apparatus (14), recording medium (20) and transmission medium (21) in which a plurality of coding tables (123) is used to convert an input data word of p-bits to a code word of q-bits (q>p), and a code word string obtained by directly coupling the code words is recorded and reproduced in a recording medium (20) such as an optical disk and magnetic disk, or transmitted via a transmitting portion (15). A synchronous frame consists of a synchronous signal and the cord word string satisfying restriction on minimum run length and maximum run length. The synchronous signal is separable from the code word string satisfying a predetermined run length restriction rule, and is constituted with a specific code for identifying its position in one sector, and a synchronous pattern consisting of a first bit pattern having a run length longer than the maximum run length of the predetermined run length restriction rule by IT or more, and a following second bit pattern having a run length longer than the minimum run length.
摘要翻译：公开了一种同步信号生成方法，记录装置（10），发送装置（14），记录介质（20）和传输介质（21），其中使用多个编码表（123）来转换输入数据字（q> p）的码字，并且通过直接耦合码字获得的码字串被记录和再现在诸如光盘和磁盘的记录介质（20）中，或经由发送部分（15）发送。同步帧由同步信号和绳字符串组成，满足最小游程长度和最大游程长度的限制。该同步信号与满足规定游程长度限制规则的代码字串可分离，并且由用于识别其在一个扇区中的位置的特定代码构成，并且由具有长于该扇区长度的游程长度的第一位模式组成的同步模式预定行程长度限制规则的最大游程长度为IT以上，以及具有比最小游程长度长的游程长度的后续第二位模式。

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