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1. 发明申请

US20060153043A1 Recording medium, recording apparatus, reproducing apparatus, recording method, and reproducing method 审中-公开
标题翻译：记录介质，记录装置，再现装置，记录方法和再现方法
公开(公告)号：US20060153043A1
公开(公告)日：2006-07-13
申请号：US10543998
申请日：2004-11-26
申请人： Masatoshi Nishino , Junichi Horigome , Takayoshi Chiba , Hideo Tada , Shigeo Yamaguchi , Masayoshi Nagata , Yasuo Tone
发明人： Masatoshi Nishino , Junichi Horigome , Takayoshi Chiba , Hideo Tada , Shigeo Yamaguchi , Masayoshi Nagata , Yasuo Tone
IPC分类号： G11B7/00
CPC分类号： G11B27/24 , G11B7/00736 , G11B19/122 , G11B20/1217 , G11B27/3027 , G11B2020/1222 , G11B2020/1278 , G11B2020/1285 , G11B2020/1287 , G11B2220/216 , G11B2220/218 , G11B2220/2541 , G11B2220/2562
摘要： A recording medium as a physically rewritable disk is appropriately used as a write-once type. In order to use the rewritable media in write-once applications, the recording medium in the data structure thereof includes, in a second data unit (an ECC block of 64 Kbytes), flag information WF1-WF4 indicating whether a first data unit (2 Kbytes) is stored. More specifically, whether a plurality of first data units (a sector handled by a host) has been recorded in the second data unit (a recording unit sector on the recording medium) is directly indicated. When an access request is issued in emulation in a disk drive device, the flag information is referenced, and the disk drive device determines whether one of writing or reading of the first data unit as a target responsive to a command is enabled.
摘要翻译：作为物理可重写盘的记录介质被适当地用作一次写入型。为了在一次写入应用中使用可重写介质，其数据结构中的记录介质包括在第二数据单元（64KB的ECC块）中的标志信息WF 1 -WF 4，指示第一数据单元（2 KB）存储。更具体地，直接指示多个第一数据单元（由主机处理的扇区）是否已被记录在第二数据单元（记录介质上的记录单元扇区）中。当在磁盘驱动器装置中仿真中发出访问请求时，引用标志信息，并且盘驱动装置确定响应于命令的第一数据单元作为目标的写入或读取中的一个是否被启用。

2. 发明授权

US06906990B2 Phase-change optical disk and optical disk apparatus 失效
标题翻译：相变光盘和光盘装置
公开(公告)号：US06906990B2
公开(公告)日：2005-06-14
申请号：US10133820
申请日：2002-04-25
申请人： Masayoshi Nagata , Takayoshi Chiba , Yasuo Tone , Shigeo Yamaguchi , Junichi Horigome
发明人： Masayoshi Nagata , Takayoshi Chiba , Yasuo Tone , Shigeo Yamaguchi , Junichi Horigome
IPC分类号： G11B20/14 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/00
CPC分类号： G11B7/007 , G11B7/00454 , G11B7/0051
摘要： An optical disk apparatus for a phase-change optical disk detects the boundary between a first region and a second region prior to detecting a synchronization mark. The synchronization mark is detected in accordance with the position of the detected boundary between the first region and the second region. User data is read from a data region in accordance with the detected synchronization mark.
摘要翻译：用于相变光盘的光盘装置在检测到同步标记之前检测第一区域和第二区域之间的边界。根据检测到的第一区域和第二区域之间的边界的位置来检测同步标记。根据检测到的同步标记从数据区读取用户数据。

3. 发明授权

US06570940B2 Information reproducing apparatus and reproducing method 失效
标题翻译：信息再现装置和再现方法
公开(公告)号：US06570940B2
公开(公告)日：2003-05-27
申请号：US09845290
申请日：2001-05-01
申请人： Shigeo Yamaguchi , Junichi Horigome , Takayoshi Chiba
发明人： Shigeo Yamaguchi , Junichi Horigome , Takayoshi Chiba
IPC分类号： H04L2706
CPC分类号： G11B11/10515 , G11B20/10009 , G11B20/10083 , G11B20/10101 , G11B20/10148 , G11B2020/183 , H03M13/31 , H03M13/3961 , H03M13/41 , H03M13/4107 , H03M13/6331 , H03M13/6343
摘要： In a magneto-optic disc apparatus corresponding to six-value four-status Viterbi decoding method, an RAA has 12 registers so as to separately adapt amplitude reference values for an address portion and amplitude reference values for a data portion on a magneto-optic disc. Normally, stored values of the registers at the time a reproducing operation has been just completed are used for initial values for an adapting process in the next reproducing operation. On the other hand, when data cannot be correctly reproduced and thereby a read-retry operation or the like is preformed, predetermined values that are stored in 12 registers in the RAA are used as initial values. In this case, the adapting process for amplitude reference values is not performed.
摘要翻译：在对应于六值四态维特比解码方法的磁光盘装置中，RAA具有12个寄存器，以分别适应地磁片的幅度参考值和磁光盘上的数据部分的幅度参考值。通常，在刚刚完成再现操作时寄存器的存储值被用于下一再现操作中的适配处理的初始值。另一方面，当数据不能被正确再现并且由此执行读取重试操作等时，将存储在RAA中的12个寄存器中的预定值用作初始值。在这种情况下，不进行幅度基准值的适应处理。

4. 发明授权

US07430157B2 Recording device, recording method, reproducing device, and reproducing method 失效
标题翻译：记录装置，记录方法，再现装置和再现方法
公开(公告)号：US07430157B2
公开(公告)日：2008-09-30
申请号：US10543746
申请日：2004-12-15
申请人： Masatoshi Nishino , Junichi Horigome , Takayoshi Chiba , Hideo Tada , Shigeo Yamaguchi , Masayoshi Nagata , Yasuo Tone
发明人： Masatoshi Nishino , Junichi Horigome , Takayoshi Chiba , Hideo Tada , Shigeo Yamaguchi , Masayoshi Nagata , Yasuo Tone
IPC分类号： G11B5/09
CPC分类号： G11B27/3027 , G11B20/1217 , G11B27/24 , G11B2020/1278 , G11B2020/1287 , G11B2220/216 , G11B2220/218 , G11B2220/2562
摘要： To enable a physically rewritable disc to be appropriately used as a write-once type.When the rewritable disc is used in rewritable application, the position where writing of a predetermined data unit (for example, an ECC block) in data is started is set to a first position with respect to a reference position to record or play back the data. In contrast, when the rewritable disc is used in write-once application, the position where writing of the predetermined data unit in the data is started is set to a second position different from first position to record or play back the data. The position where writing of the data is started in the rewritable application is shifted from the position where writing of the data is started in the write-once application to disable rewriting of the data recorded on a rewritable recording medium when the rewritable recording medium for the write-once application is loaded in a recording-playback apparatus that does not assume the use of the rewritable recording medium in the write-once application.
摘要翻译：使物理可重写光盘能够被适当地用作一次写入型。当在可重写应用中使用可重写盘时，将数据中的预定数据单元（例如，ECC块）写入的位置设置为相对于参考位置的第一位置以记录或重放数据。相比之下，当在一次写入应用中使用可重写盘时，数据中预定数据单元的写入开始的位置被设置为不同于第一位置的第二位置以记录或重放数据。在可重写应用程序中启动数据写入的位置从写入一次应用程序中开始数据写入的位置移位，以便当可重写记录介质可重写记录介质时，禁止对记录在可重写记录介质上的数据进行重写一次写入应用程序被加载到在一次写入应用程序中不假定使用可重写记录介质的记录重放装置中。

5. 发明授权

US06441661B1 PLL circuit 失效
标题翻译： PLL电路
公开(公告)号：US06441661B1
公开(公告)日：2002-08-27
申请号：US09720658
申请日：2000-12-28
申请人： Hiroshi Aoki , Shiro Suzuki , Junichi Horigome , Takayoshi Chiba , Shigeo Yamaguchi
发明人： Hiroshi Aoki , Shiro Suzuki , Junichi Horigome , Takayoshi Chiba , Shigeo Yamaguchi
IPC分类号： H03L706
CPC分类号： G11B20/1024
摘要： An A/D converter (30) samples an analog signal synchronously with a sampling clock from a VCO (70). These sampled values are stored in a shift register (410). A code judging section (420) detects the positive/negative sign pattern (time-series code pattern) of the sampled values held in storage elements (S0 to S5) of the shift register (410) and stores the sampled values in predetermined register (431 to 434) according to the detected sign pattern. According to this, a calculating section (430) determines the phase difference between the analog signal and the sampling clock. The phase difference is fed to a VCO (70) through a D/A converter (50) and a loop filter (60).
摘要翻译： A / D转换器（30）与来自VCO（70）的采样时钟同步地采样模拟信号。这些采样值被存储在移位寄存器（410）中。代码判定部分（420）检测保持在移位寄存器（410）的存储元件（S0至S5）中的采样值的正/负符号模式（时间序列码模式），并将采样值存储在预定寄存器 431〜434）。据此，计算部（430）确定模拟信号和采样时钟之间的相位差。相位差通过D / A转换器（50）和环路滤波器（60）馈送到VCO（70）。

6. 发明授权

US06289059B1 Information reproducing apparatus and reproducing method 失效
公开(公告)号：US06289059B1
公开(公告)日：2001-09-11
申请号：US09072505
申请日：1998-05-04
申请人： Shigeo Yamaguchi , Junichi Horigome , Takayoshi Chiba
发明人： Shigeo Yamaguchi , Junichi Horigome , Takayoshi Chiba
IPC分类号： H04L2706
CPC分类号： G11B11/10515 , G11B20/10009 , G11B20/10083 , G11B20/10101 , G11B20/10148 , G11B2020/183 , H03M13/31 , H03M13/3961 , H03M13/41 , H03M13/4107 , H03M13/6331 , H03M13/6343
摘要： In a magneto-optic disc apparatus corresponding to six-value four-status Viterbi decoding method, an RAA has 12 registers so as to separately adapt amplitude reference values for an address portion and amplitude reference values for a data portion on a magneto-optic disc. Normally, stored values of the registers at the time a reproducing operation has been just completed are used for initial values for an adapting process in the next reproducing operation. On the other hand, when data cannot be correctly reproduced and thereby a read-retry operation or the like is preformed, predetermined values that are stored in 12 registers in the RAA are used as initial values. In this case, the adapting process for amplitude reference values is not performed.

7. 发明申请

US20060256675A1 Recording device, recording method, reproducing device, and reproducing method 失效
标题翻译：记录装置，记录方法，再现装置和再现方法
公开(公告)号：US20060256675A1
公开(公告)日：2006-11-16
申请号：US10543746
申请日：2004-12-15
申请人： Masatoshi Nishino , Junichi Horigome , Takayoshi Chiba , Hideo Tada , Shigeo Yamaguchi , Masayoshi Nagata , Yasuo Tone
发明人： Masatoshi Nishino , Junichi Horigome , Takayoshi Chiba , Hideo Tada , Shigeo Yamaguchi , Masayoshi Nagata , Yasuo Tone
IPC分类号： G11B5/09
CPC分类号： G11B27/3027 , G11B20/1217 , G11B27/24 , G11B2020/1278 , G11B2020/1287 , G11B2220/216 , G11B2220/218 , G11B2220/2562
摘要： To enable a physically rewritable disc to be appropriately used as a write-once type. When the rewritable disc is used in rewritable application, the position where writing of a predetermined data unit (for example, an ECC block) in data is started is set to a first position with respect to a reference position to record or play back the data. In contrast, when the rewritable disc is used in write-once application, the position where writing of the predetermined data unit in the data is started is set to a second position different from first position to record or play back the data. The position where writing of the data is started in the rewritable application is shifted from the position where writing of the data is started in the write-once application to disable rewriting of the data recorded on a rewritable recording medium when the rewritable recording medium for the write-once application is loaded in a recording-playback apparatus that does not assume the use of the rewritable recording medium in the write-once application.
摘要翻译：使物理可重写光盘能够被适当地用作一次写入型。当在可重写应用中使用可重写盘时，将数据中的预定数据单元（例如，ECC块）写入的位置设置为相对于参考位置的第一位置以记录或重放数据。相比之下，当在一次写入应用中使用可重写盘时，数据中预定数据单元的写入开始的位置被设置为不同于第一位置的第二位置以记录或重放数据。在可重写应用程序中启动数据写入的位置从写入一次应用程序中开始数据写入的位置移位，以便当可重写记录介质可重写记录介质时，禁止对记录在可重写记录介质上的数据进行重写一次写入应用程序被加载到在一次写入应用程序中不假定使用可重写记录介质的记录重放装置中。

8. 发明授权

US06317471B1 Information reproducing apparatus and reproducing method 失效
标题翻译：信息再现装置和再现方法
公开(公告)号：US06317471B1
公开(公告)日：2001-11-13
申请号：US09059477
申请日：1998-04-13
申请人： Junichi Horigome , Shigeo Yamaguchi , Takayoshi Chiba
发明人： Junichi Horigome , Shigeo Yamaguchi , Takayoshi Chiba
IPC分类号： H03D100
CPC分类号： G11B20/10296 , G11B20/1426
摘要： An ACS of a Viterbi decoder generates status data that an SMU represents a status transition corresponding to the maximum likelihood status transition selected corresponding to each read clock pulse. A merge block generates decoded data corresponding to status data. A timing generator generates timings of a leading edge and a trailing edge of a reproduced RF signal corresponding to status data. A PEC generates a phase error signal PE corresponding to a reproduced signal value sampled at these the timings (namely, sampling values of an A/D converter). With the phase error signal PE, a VCO is controlled. The memory length of the SMU that generates the timings is smaller than the memory length for a decoding process. One of the memory lengths can be selected depending on whether data is reproduced from a header area or a data area.
摘要翻译：维特比解码器的ACS产生状态数据，SMU表示对应于对应于每个读时钟脉冲选择的最大似然状态转变的状态转变。合并块产生与状态数据相对应的解码数据。定时发生器产生对应于状态数据的再现RF信号的前沿和后沿的定时。 PEC产生与在这些定时（即A / D转换器的采样值）采样的再生信号值对应的相位误差信号PE。利用相位误差信号PE，控制VCO。生成定时的SMU的存储器长度小于解码处理的存储器长度。可以根据从头部区域还是数据区域再现数据来选择存储器长度之一。

9. 发明授权

US06192502B1 Information reproducing apparatus and reproducing method 失效
标题翻译：信息再现装置和再现方法
公开(公告)号：US06192502B1
公开(公告)日：2001-02-20
申请号：US09057796
申请日：1998-04-09
申请人： Shigeo Yamaguchi , Takayoshi Chiba , Junichi Horigome
发明人： Shigeo Yamaguchi , Takayoshi Chiba , Junichi Horigome
IPC分类号： H03M1341
CPC分类号： G11B20/10148 , G11B20/10009 , G11B20/10083 , G11B20/10101 , H03M13/31 , H03M13/4107 , H04L1/0052 , H04L1/0054
摘要： In a Viterbi decoder, an SMU is used instead of a PMU. The SMU has four status memories that process a status data value composed of a plurality of bits that represent a status at a time. The status memories generate a sequence of four status data values. A merge block generates decoded data corresponding to the four status data values, detects mismatches of four status data values, and generates a mismatch detection signal NM. The number of mismatches is counted corresponding to the mismatch detecting signal NM. The quality of decoded data and reproduced signal are evaluated corresponding to the count value.
摘要翻译：在维特比解码器中，使用SMU代替PMU。 SMU具有四个状态存储器，其处理由表示一次状态的多个位组成的状态数据值。状态存储器产生四个状态数据值的序列。合并块产生对应于四个状态数据值的解码数据，检测四个状态数据值的不匹配，并产生不匹配检测信号NM。对应于不匹配检测信号NM对不匹配的数量进行计数。根据计数值对解码数据和再现信号的质量进行评估。

10. 发明授权

US6097685A Information reproducing apparatus and reproducing method 失效
标题翻译：信息再现装置和再现方法
公开(公告)号：US6097685A
公开(公告)日：2000-08-01
申请号：US66190
申请日：1998-04-24
申请人： Shigeo Yamaguchi , Junichi Horigome , Takayoshi Chiba
发明人： Shigeo Yamaguchi , Junichi Horigome , Takayoshi Chiba
IPC分类号： G11B7/005 , G11B11/10 , G11B11/105 , G11B20/14 , G11B20/18 , H03M13/23 , H03M13/31 , H03M13/41 , G11B7/00
CPC分类号： G11B20/10037 , G11B20/10296 , G11B20/1403 , G11B20/1426 , H03M13/31 , H03M13/41 , H03M13/4107 , H03M13/6343 , G11B11/10515 , G11B7/005
摘要： A structure for detecting a phase error for causing a PLL of an information reproducing apparatus to be locked and for selecting Viterbi determination mode, MSB determination mode (for obtaining a phase error detection timing corresponding to MSB of output data of an A/D converter disposed on the preceding stage of a Viterbi decoder) is disclosed. One of the three modes is selected corresponding to the state of the PLL. A Viterbi timing generating circuit, an MSB timing generating circuit, and a frequency lock mode timing generating circuit are provided. Phase error detection timings generated by the three circuits are selectively supplied to a phase error detecting circuit by a sampling pulse selecting switch. The selected phase error detection timing is switched between the acquisition mode and the tracking mode.
摘要翻译：一种用于检测用于使信息再现装置的PLL锁定的相位误差的结构，用于选择维特比确定模式，MSB确定模式（用于获得与设置的A / D转换器的输出数据的MSB相对应的相位误差检测定时在维特比解码器的前一级）。根据PLL的状态选择三种模式之一。提供维特比定时发生电路，MSB定时发生电路和频率锁定模式定时产生电路。由三个电路产生的相位误差检测定时由采样脉冲选择开关选择性地提供给相位误差检测电路。所选择的相位误差检测定时在采集模式和跟踪模式之间切换。

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