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1. 发明授权

US6128256A Apparatus and method for positioning an optical head over a disk having pre-groups with encoded address information 失效
标题翻译：用于将光头定位在具有编码地址信息的预组的盘上的装置和方法
公开(公告)号：US6128256A
公开(公告)日：2000-10-03
申请号：US313491
申请日：1999-05-17
申请人： Koji Inoue , Kensuke Fujimoto , Masahiro Shigenobu
发明人： Koji Inoue , Kensuke Fujimoto , Masahiro Shigenobu
IPC分类号： G11B7/007 , G11B7/085 , G11B11/105 , G11B21/08 , G11B27/10 , G11B27/19 , G11B27/24 , G11B27/30 , G11B17/22
CPC分类号： G11B7/08505 , G11B21/083 , G11B27/105 , G11B27/19 , G11B27/24 , G11B7/00745 , G11B7/08529 , G11B11/10565 , G11B27/3027 , G11B7/08541
摘要： An apparatus and method are provided for locating a desired track on a disk shaped recording medium. The disk has a first pre-group and a second pre-group. At least one of the pre-groups has encoded address information shared by at least one track on the inner side of the pre-group, and shared by at least one track on an outer side of the pre-group. A desired track is located based on changes in address information detected during or after a track jump.
摘要翻译：提供了一种用于将期望的轨道定位在盘形记录介质上的装置和方法。磁盘具有第一个预组和第二个预组。预组中的至少一个已经编码了由前组的内侧上的至少一个轨道共享的地址信息，并且由前组的外侧上的至少一个轨道共享。基于在轨道跳跃期间或之后检测到的地址信息的变化来定位期望的轨道。

2. 发明授权

US06130865A Apparatus and method for positioning an optical head over a disk having spiral tracks with encoded address information 失效
标题翻译：用于将光头定位在具有编码地址信息的具有螺旋轨道的盘上的装置和方法
公开(公告)号：US06130865A
公开(公告)日：2000-10-10
申请号：US313497
申请日：1999-05-17
申请人： Koji Inoue , Kensuke Fujimoto , Masahiro Shigenobu
发明人： Koji Inoue , Kensuke Fujimoto , Masahiro Shigenobu
IPC分类号： G11B11/10 , G11B7/007 , G11B7/085 , G11B11/105 , G11B21/08 , G11B27/10 , G11B27/19 , G11B27/24 , G11B27/30 , G11B17/22
CPC分类号： G11B7/00745 , G11B11/10565 , G11B21/083 , G11B27/105 , G11B27/19 , G11B27/24 , G11B7/08505 , G11B7/08529 , G11B27/3027 , G11B7/007 , G11B7/08541
摘要： An apparatus and method are provided for moving an optical head to a desired track on a disk shaped recording medium having a pair of spiral tracks. A common address is recorded on the pair of spiral tracks. The addresses of the tracks before and after the access process are compared. Based on this comparison, a judgment is made as to whether the optical head has landed on a spiral track having a common address or a track having another address after the access process.
摘要翻译：提供了一种用于将光学头移动到具有一对螺旋轨道的盘形记录介质上的期望轨道的装置和方法。公共地址记录在一对螺旋轨道上。比较访问过程之前和之后的轨道地址。基于该比较，判断光头是否已经落在具有公共地址的螺旋形轨道上或在访问过程之后具有另一地址的轨道。

3. 发明授权

US5959947A Apparatus and method for identifying and accessing a desired track of an optical disk 失效
标题翻译：用于识别和访问光盘的期望轨道的装置和方法
公开(公告)号：US5959947A
公开(公告)日：1999-09-28
申请号：US954253
申请日：1997-10-20
申请人： Koji Inoue , Kensuke Fujimoto , Masahiro Shigenobu
发明人： Koji Inoue , Kensuke Fujimoto , Masahiro Shigenobu
IPC分类号： G11B11/10 , G11B7/007 , G11B7/085 , G11B11/105 , G11B21/08 , G11B27/10 , G11B27/19 , G11B27/24 , G11B27/30 , G11B17/22
CPC分类号： G11B7/00745 , G11B11/10565 , G11B21/083 , G11B27/105 , G11B27/19 , G11B27/24 , G11B7/08505 , G11B7/08529 , G11B27/3027 , G11B7/007 , G11B7/08541
摘要： A simple device and method for accessing a desired track of an optical disk device or the like, wherein address information is encoded on at least one of two pre-groups. One or more tracks adjacent to the pre-groups have the same address. Tracks are located and identified based on changes in address information detected during or after a track jump.
摘要翻译：一种用于访问光盘设备等的期望轨道的简单设备和方法，其中地址信息被编码在两个预组中的至少一个上。与预组相邻的一个或多个轨道具有相同的地址。基于轨道跳跃期间或之后检测到的地址信息的变化来定位和识别轨道。

4. 发明申请

US20060215513A1 Optical recording method and optical recording device 审中-公开
标题翻译：光记录方法和光记录装置
公开(公告)号：US20060215513A1
公开(公告)日：2006-09-28
申请号：US10541445
申请日：2003-12-10
申请人： Takashi Fujimoto , Masahiro Shigenobu , Kenichiro Aridome , Yasuaki Maeda , Kensuke Fujimoto , Hideki Mawatari
发明人： Takashi Fujimoto , Masahiro Shigenobu , Kenichiro Aridome , Yasuaki Maeda , Kensuke Fujimoto , Hideki Mawatari
IPC分类号： G11B7/12
CPC分类号： G11B7/126 , G11B7/0045
摘要： The present invention relates to an optical recording method for recording data on an optical disc by using a laser beam. When the optical disc is inserted into an optical recording device (step S1), a test writing area PCA (Power Calibration Area) that can be used for an OPC (Optimum Power Calibration) on the optical disc is searched and an optical pickup is allowed to stand by at that position (step S4). Then, when an input of a recording operation of data is received (step S6), an OPC operation is carried out at the stand-by position (step S7). After an optimum power is obtained, the optical pickup is moved to a data recording area on the optical disc (step S10) to record the data in the data recording area of the optical disc by the optical pickup (step S11).
摘要翻译：本发明涉及一种通过使用激光束在光盘上记录数据的光记录方法。当将光盘插入到光学记录装置中时（步骤S1），搜索可用于光盘上的OPC（最佳功率校准）的测试写入区域PCA（功率校准区域），并且光学拾取器允许在该位置待命（步骤S4）。然后，当接收到数据的记录操作的输入时（步骤S6），在待机位置执行OPC操作（步骤S7）。在获得最佳功率之后，将光学拾取器移动到光盘上的数据记录区域（步骤S10），以通过光学拾取器将数据记录在光盘的数据记录区域中（步骤S11）。

5. 发明授权

US6130866A Error-correcting storage medium reproduction apparatus and method using frames and synchronization patterns 失效
标题翻译：纠错存储介质再现装置和使用帧和同步模式的方法
公开(公告)号：US6130866A
公开(公告)日：2000-10-10
申请号：US887379
申请日：1997-07-02
申请人： Masahiro Shigenobu , Kensuke Fujimoto , Hirofumi Todo
发明人： Masahiro Shigenobu , Kensuke Fujimoto , Hirofumi Todo
IPC分类号： G11B20/10 , G11B20/12 , G11B20/14 , G11B27/30 , G11B7/00
CPC分类号： G11B27/3027 , G11B20/12 , G11B2220/216 , G11B2220/2525 , G11B2220/2562 , G11B2220/2575
摘要： A storage medium reproduction apparatus for reproducing data from a storage medium for storing data which are divided into frames of a predetermined length, each of the frames comprising a synchronizing pattern. The apparatus comprises a synchronizing pattern detection circuit for detecting synchronizing patterns and a frame determination circuit for determining a currently reproduced frame on the basis of regularity of the synchronizing patterns detected by the synchronizing pattern detection circuit.
摘要翻译：一种用于从存储介质再现数据的存储介质再现装置，用于存储被划分成预定长度的帧的数据，每个帧包括同步模式。该装置包括用于检测同步模式的同步模式检测电路和用于基于由同步模式检测电路检测到的同步模式的规律性来确定当前再现的帧的帧确定电路。

6. 发明授权

US06191903B1 Recording medium, data transmission apparatus, data receiver, and optical disk unit 有权
标题翻译：记录介质，数据传输装置，数据接收器和光盘单元
公开(公告)号：US06191903B1
公开(公告)日：2001-02-20
申请号：US09132637
申请日：1998-08-11
申请人： Kensuke Fujimoto , Masahiro Shigenobu , Hideki Mawatari
发明人： Kensuke Fujimoto , Masahiro Shigenobu , Hideki Mawatari
IPC分类号： G11B509
CPC分类号： G11B20/00927 , G11B20/00086 , G11B20/1252 , G11B27/3027 , G11B2020/1476 , G11B2220/2562 , H04N5/85 , H04N9/8042 , H04N9/8063
摘要： This invention relates to a recording medium, data transmission apparatus, data receiver, and optical disk unit, and particularly applies to a system which transmits video data and other data or records them on an optical disk in a predetermined block unit, and permits each frame to be easily and correctly located by low volumes of identification data. At least contiguous synchronization patterns or/and contiguous synchronization patterns with one synchronization pattern interleaved therebetween are assigned with unique combinations.
摘要翻译：本发明涉及一种记录介质，数据传输装置，数据接收器和光盘单元，特别适用于以预定块单元传输视频数据和其他数据或将其记录在光盘上的系统，并且允许每个帧通过低容量的识别数据容易且正确地定位。具有在其间交错的一个同步模式的至少连续同步模式或/或连续的同步模式被赋予独特的组合。

7. 发明授权

US5917792A Recording medium, recording medium playback device, recording medium playback method, recording medium recording device and recording medium recording method 失效
标题翻译：记录介质，记录介质重放装置，记录介质重放方法，记录介质记录装置和记录介质记录方法
公开(公告)号：US5917792A
公开(公告)日：1999-06-29
申请号：US886343
申请日：1997-07-01
申请人： Masahiro Shigenobu , Kensuke Fujimoto
发明人： Masahiro Shigenobu , Kensuke Fujimoto
IPC分类号： G11B20/10 , G11B20/12 , G11B20/18 , G11B27/30 , G11B7/00
CPC分类号： G11B20/1217 , G11B20/1833 , G11B27/3027 , G11B2220/216 , G11B2220/2525 , G11B2220/2562 , G11B2220/2575
摘要： An ECC encoder adds sync patterns to a preamble part and a data part in respectively different sequences. A modulator modulates data to which sync patterns have been added by the ECC encoder, and the result is recorded on an optical disk. The playback RF signal output by the optical disk is demodulated by a demodulator, and the sync patterns inserted in the signal are detected. From the combinations of detected sync patterns, the demodulator 12 identifies whether a currently reproduced frame is the preamble part or the data part, and from the identification result, playback data is sequentially stored in a predetermined area of a SRAM. It is thus performed to identify a preamble part from a reproduced RF signal, and accurately extract one block of data.
摘要翻译： ECC编码器将同步模式分别以不同的顺序添加到前同步码部分和数据部分。调制器调制由ECC编码器添加了同步模式的数据，并将结果记录在光盘上。由光盘输出的重放RF信号由解调器解调，并且检测插入在信号中的同步图案。从检测到的同步模式的组合中，解调器12识别当前再现的帧是前同步码部分还是数据部分，并且根据识别结果，重放数据被顺序存储在SRAM的预定区域中。因此，执行从再现的RF信号识别前导码部分，并且准确地提取一个数据块。

8. 发明授权

US07200094B2 Reproduced signal evaluation apparatus and method, reproduction apparatus and method, and recording apparatus and method 有权
标题翻译：再生信号评价装置及方法，再现装置和方法以及记录装置和方法
公开(公告)号：US07200094B2
公开(公告)日：2007-04-03
申请号：US11113557
申请日：2005-04-25
申请人： Kensuke Fujimoto , Shunji Yoshimura , Atsushi Fukumoto , Yasuhito Tanaka
发明人： Kensuke Fujimoto , Shunji Yoshimura , Atsushi Fukumoto , Yasuhito Tanaka
IPC分类号： G11B5/76
CPC分类号： G11B20/10009 , G11B7/005 , G11B7/1267 , G11B11/10515 , G11B11/1053 , G11B11/10595 , G11B20/10 , G11B20/18 , G11B20/1833 , H03M13/3961 , H03M13/41 , H03M13/6343
摘要： The present invention provides an apparatus and a method for precisely and adequately evaluating actual quality of reproduced data whenever applying a maximum likelihood decoder for converting signal reproduced from a recording medium into binary signal Based on data arrays of a pair of binary data outputted from a “Viterbi” decoder, SAM values are secured by selecting any of path-metric differential values (00) and (11) being the difference between a pair of values compared when renewing path-metric values PMM (00) and (11) outputted from the “Viterbi” decoder. The minimum SAM value for an ideally-reproduced signal is outputted from a constant generating circuit. If the SAM values are verified as valid, and yet, if the SAM values coincide with the equation “input SAM values”≦“data value outputted from the constant generating circuit”, then squared values outputted from a square circuit are averaged by an averaging circuit. Finally, the average value is outputted as the reproduced signal evaluation.
摘要翻译：本发明提供了一种用于在将用于将从记录介质再现的信号转换为二进制信号的最大似然解码器的情况下精确地和适当地评估再现数据的实际质量的装置和方法。基于从“ 维特比“解码器，通过选择路径度量差分值（00）和（11）中的任何一个来确保SAM值，所述差分值是当从更新路由度量值PMM（00）和（11）更新时比较的一对值之间的差 “维特比”解码器。理想再现信号的最小SAM值从恒定发生电路输出。如果SAM值被验证为有效，然而，如果SAM值与从常数产生电路输出的等式“输入SAM值”<=“数据值”一致，则从平方电路输出的平方值由平均电路。最后，平均值作为再现信号评估输出。

9. 发明授权

US5987082A Playback apparatus and playback method 失效
标题翻译：播放设备和播放方法
公开(公告)号：US5987082A
公开(公告)日：1999-11-16
申请号：US889743
申请日：1997-07-10
申请人： Kensuke Fujimoto
发明人： Kensuke Fujimoto
IPC分类号： G01R25/00 , G11B20/10 , G11B20/14 , H03H17/00 , H03L7/085 , H04L7/00
CPC分类号： G11B20/1403 , G11B20/10009
摘要： To reduce a data-error rate caused by interpolation errors. An adder computes the sum of a sampled value Si+1 of a playback signal and a value 8.times.Si+1 produced by a bit shifter to output the sum 9.times.Si+1 to an adder. The adder adds the sum (9.times.Si+1) supplied thereto by the adder to a sum (9.times.Si) supplied thereto after being delayed by a delay element and outputs the result of the addition (9.times.Si+9.times.Si+1) to an adder. An adder computes the sum of a sampled value Si-1 supplied thereto after being delayed by delay elements and a sampled value Si+2 supplied thereto by an A/D converter and outputs sum (Si-1+Si+2) to the adder. The adder which is used as a subtractor computes the difference between the sum (9.times.Si+9.times.Si+1) supplied thereto by the adder and the sum (Si-1+Si+2) supplied thereto by the adder and outputs the difference (Si-1-9.times.Si-9.times.Si+1+Si+2) to a bit shifter. The bit shifter shifts the difference (Si-1-9.times.Si-9.times.Si+1+Si+2) supplied thereto by the adder by four bits toward the LSB and outputs the right-shifted value (Si-1-9.times.Si-9.times.Si+1+Si+2)/16 to a second interpolation circuit as a first interpolation value Si' along with the sampled values Si and Si+1. As a result, the number of sampled values seemingly appears increased.
摘要翻译：减少由插补误差引起的数据错误率。加法器计算重放信号的采样值Si + 1和由比特移位器产生的值8xSi + 1的和，以将和9xSi + 1输出到加法器。加法器将由加法器提供的和（9xSi + 1）加到由延迟元件延迟后提供给它的和（9xSi），并将相加结果（9xSi + 9xSi + 1）输出到加法器。加法器计算由延迟元件延迟后提供给其的采样值Si-1和由A / D转换器提供给其的采样值Si + 2的和，并将加法（Si-1 + Si + 2）加到加法器。用作减法器的加法器计算由加法器提供给它的和（9xSi + 9xSi + 1）与由加法器提供给它的和（Si-1 + Si + 2）之间的差值，并输出差值（Si- 1-9xSi-9xSi + 1 + Si + 2）到位移位器。位移器将由加法器提供给其的差（Si-1-9xSi-9xSi + 1 + Si + 2）向LSB移位四位，并输出右移位值（Si-1-9xSi-9xSi + 1 + Si + 2）/ 16连接到作为第一插值值Si'的第二插值电路以及采样值Si和Si + 1。因此，采样值的数量看起来似乎增加了。

10. 发明授权

US06940800B2 Reproduced signal evaluation apparatus and method, reproduction apparatus and method, and recording apparatus and method 失效
标题翻译：再生信号评价装置及方法，再现装置和方法以及记录装置和方法
公开(公告)号：US06940800B2
公开(公告)日：2005-09-06
申请号：US10017156
申请日：2001-12-14
申请人： Kensuke Fujimoto , Shunji Yoshimura , Atsushi Fukumoto , Yasuhito Tanaka
发明人： Kensuke Fujimoto , Shunji Yoshimura , Atsushi Fukumoto , Yasuhito Tanaka
IPC分类号： G11B7/0045 , G11B7/005 , G11B20/10 , G11B20/18 , H03M13/39 , H03M13/41 , G11B5/76
CPC分类号： G11B20/10009 , G11B7/005 , G11B7/1267 , G11B11/10515 , G11B11/1053 , G11B11/10595 , G11B20/10 , G11B20/18 , G11B20/1833 , H03M13/3961 , H03M13/41 , H03M13/6343
摘要： The present invention provides an apparatus and a method for precisely and adequately evaluating actual quality of reproduced data whenever applying a maximum likelihood decoder for converting signal reproduced from a recording medium into binary signal. Based on data arrays of a pair of binary data outputted from a “Viterbi” decoder, SAM values are secured by selecting any of path-metric differential values (00) and (11) being the difference between a pair of values compared when renewing path-metric values PMM (00) and (11) outputted from the “Viterbi” decoder. The minimum SAM value for an ideally-reproduced signal is outputted from a constant generating circuit. If the SAM values are verified as valid, and yet, if the SAM values coincide with the equation “input SAM values”≦“data value outputted from the constant generating circuit”, then squared values outputted from a square circuit are averaged by an averaging circuit. Finally, the average value is outputted as the reproduced signal evaluation.
摘要翻译：本发明提供了一种用于在应用用于将从记录介质再现的信号转换成二进制信号的最大似然解码器时，精确且充分地评估再现数据的实际质量的装置和方法。基于从“维特比”解码器输出的一对二进制数据的数据阵列，通过选择路径度量差分值（00）和（11）中的任一个作为在更新路径上比较的一对值之间的差异来确保SAM值从“维特比”解码器输出的测量值PMM（00）和（11）。理想再现信号的最小SAM值从恒定发生电路输出。如果SAM值被验证为有效，然而，如果SAM值与从常数产生电路输出的等式“输入SAM值”<=“数据值”一致，则从平方电路输出的平方值由平均电路。最后，平均值作为再现信号评估输出。

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