公开(公告)号：US06999388B2

公开(公告)日：2006-02-14

申请号：US10131974

申请日：2002-04-24

申请人： Akira Mashimo ,  Chisato Takayama ,  Keishi Ueno

发明人： Akira Mashimo ,  Chisato Takayama ,  Keishi Ueno

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/094

摘要： An optical disk apparatus capable of adjusting a focus servo and the like by precisely detecting a jitter amount. Light reflected from an optical disk is converted into an RF signal in an optical pickup and amplified by an RF amplifier before being supplied to an equalizer. The boost amount of the equalizer is set to zero during adjustment and set to a predetermined finite value (e.g., +20 dB) during normal recording and reproducing. By first setting the boost amount to zero, the delay characteristics of the RF signal from 3T to 11T are flattened such that an accurate jitter amount can be determined based on the integrated value of the phase differences of 3T to 11T, thereby allowing the optical pickup to be adjusted so as to minimize the jitter amount.

公开(公告)号：US20060007822A1

公开(公告)日：2006-01-12

申请号：US11177137

申请日：2005-07-08

申请人： Akira Mashimo

发明人： Akira Mashimo

IPC分类号： G11B7/00 ,  G11B5/09

CPC分类号： G11B27/24 ,  G11B20/1803 ,  G11B2020/1843 ,  G11B2220/2579

摘要： An optical disk device which drives an HD-DVD or the like. When recording or reproducing data with respect to an optical disk of HD-DVD, the address information is demodulated by an address decoding circuit and is supplied to a system controller. The system controller performs error checking using the CRC technique. When a resulting CRC value does not correspond to CRC bits, the system controller regards a bit in which the number of waves in wobbles having the same phase is not four, which is a predetermined value, as an error bit, and performs bit data replacement with respect to the error bit. Specifically, the system controller searches for a combination of bit values by which a resulting CRC value matches the CRC bits, thereby performing error correction. At this time, the system controller tries the data value replacement preferentially using a combination of bit values by which the address is advanced by one address from the immediately previous address which is fixed among all the possible combinations with respect to the error bits.

摘要翻译： 驱动HD-DVD等的光盘装置。 相对于HD-DVD的光盘记录或再现数据时，地址信息由地址解码电路解调并提供给系统控制器。 系统控制器使用CRC技术执行错误检查。 当所得到的CRC值不对应于CRC比特时，系统控制器将具有相同相位的摆动中的波数不是作为预定值的四位的比特作为错误比特，并执行比特数据替换 相对于错误位。 具体地，系统控制器搜索所得到的CRC值与CRC比特匹配的比特值的组合，从而进行纠错。 此时，系统控制器优先使用比特值的组合来尝试数据值替换，通过该组合，地址由相对于错误比特的所有可能组合中固定的紧前一个地址的一个地址提前。

公开(公告)号：US20050201231A1

公开(公告)日：2005-09-15

申请号：US11078881

申请日：2005-03-09

申请人： Akira Mashimo

发明人： Akira Mashimo

IPC分类号： G11B20/10 ,  G11B5/09 ,  G11B7/00 ,  G11B7/005 ,  G11B7/007 ,  G11B7/09 ,  G11B20/14 ,  G11B20/18 ,  G11B27/034 ,  G11B27/19 ,  G11B27/24

CPC分类号： G11B27/24 ,  G11B7/0053 ,  G11B7/00718 ,  G11B20/1803 ,  G11B20/1833 ,  G11B27/034 ,  G11B2220/2579

摘要： In an optical disk of HD-DVD, data is recorded in both grooves and lands. A groove track includes its own data region called a groove (G) track address system formed therein and a land track includes its own data region called a land (L) track address system formed therein. One bit of address data is composed of four redundant wobble waves. When only three or two of the four wobble waves can be detected, an error is determined. When an error is determined in tracing of a groove track, bit data of the L track address system is used to correct the error. When an error is determined in tracing of a land track, bit data of the G track address system is used to correct the error.

摘要翻译： 在HD-DVD的光盘中，数据被记录在两个凹槽和平台中。 凹槽轨道包括其自身的数据区域，其中形成有凹槽（G）轨道地址系统，并且脊迹道包括其自身的数据区域，称为其中形成的脊（L）轨道地址系统。 一位地址数据由四个冗余摆波组成。 当只能检测到四个摆动波中的三个或两个时，确定一个误差。 当在跟踪凹槽轨迹中确定错误时，使用L轨道地址系统的位数据来校正误差。 当在轨迹追踪中确定错误时，使用G轨道地址系统的位数据来校正误差。

公开(公告)号：US20050099927A1

公开(公告)日：2005-05-12

申请号：US10985698

申请日：2004-11-10

申请人： Akira Mashimo

发明人： Akira Mashimo

IPC分类号： G11B20/14 ,  G11B5/09 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/013 ,  G11B7/125 ,  G11B20/10 ,  G11B27/30 ,  H03M5/14

CPC分类号： G11B7/013 ,  G11B7/1263 ,  G11B20/10 ,  G11B20/1426 ,  G11B27/3027 ,  G11B2020/1287 ,  G11B2020/1457 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2545 ,  G11B2220/2562 ,  H03M5/145

摘要： An optical disk apparatus for suppressing a DSV and performing R-OPC. An encoding/decoding circuit inserts a synchronization information item to a head of a synchronous frame once when data are recorded on an optical disk. First, the encoding/decoding circuit inserts synchronization information as a mark or a space on the basis of a DSV. When the polarity of the first synchronization information item is a mark, the polarity of a next synchronization information item is also set on the basis of the DSV. When the polarity of the first synchronization information is a space, the polarity of the next synchronization information is set to a mark. R-OPC is performed at a timing when the polarity of the synchronization information is a mark.

摘要翻译： 一种用于抑制DSV并执行R-OPC的光盘装置。 当数据被记录在光盘上时，编码/解码电路将同步信息项插入同步帧的头部。 首先，编码/解码电路基于DSV将同步信息作为标记或空格插入。 当第一同步信息项的极性是标记时，也基于DSV设置下一个同步信息项的极性。 当第一同步信息的极性是空格时，下一个同步信息的极性被设置为一个标记。 在同步信息的极性为标记的时刻进行R-OPC。

公开(公告)号：US20050030125A1

公开(公告)日：2005-02-10

申请号：US10895911

申请日：2004-07-22

申请人： Masahiro Nakano ,  Akira Mashimo ,  Katsuo Sato

发明人： Masahiro Nakano ,  Akira Mashimo ,  Katsuo Sato

IPC分类号： H01L41/09 ,  H01L41/18 ,  H01L41/187 ,  H01L41/22 ,  H01L41/29 ,  H03H3/08 ,  H03H9/02 ,  H03H9/05 ,  H03H9/10 ,  H03H9/145 ,  H03H9/25 ,  H03H9/64 ,  H03H9/72

CPC分类号： H03H9/02992 ,  H01L2224/05001 ,  H01L2224/05023 ,  H01L2224/05124 ,  H01L2224/05568 ,  H01L2224/05624 ,  H01L2224/16225 ,  H03H3/08 ,  H03H9/02929 ,  H03H9/02984 ,  H03H9/0576 ,  H03H9/059 ,  H03H9/1071 ,  H03H9/72 ,  H03H9/725 ,  Y10T29/42 ,  H01L2924/00014

摘要： In a surface acoustic wave element according to an embodiment of this invention, raised electrodes 20 formed on thin film electrodes 18 are provided with throughholes 31. Additionally, bumps 26 arranged on the raised electrodes 20 reach the thin film electrode 18 by going through an oxide film 18a of the thin film electrodes 18 after part of the bumps enters the throughholes 31 of the raised electrodes 20. By doing this, conduction is achieved between the thin film electrodes 18 and the bumps 26 formed on a piezoelectric monocrystal substrate 28. Thus, a solid oxide film 18a is formed on the surface of the thin film electrodes 18 formed from monocrystal aluminum, but part of the bumps 26 which enters the throughholes 31 of the raised electrodes 20 goes through this oxide film 18a, so conduction between the thin film electrode 18 and the bump 26 is achieved with higher accuracy.

摘要翻译： 在根据本发明的实施例的表面声波元件中，形成在薄膜电极18上的凸起电极20设置有通孔31.另外，布置在凸起电极20上的凸块26通过氧化物到达薄膜电极18 一部分凸块之后的薄膜电极18的薄膜18a进入凸起电极20的通孔31.由此，在薄膜电极18和形成在压电单晶基板28上的凸点26之间实现导通。因此， 在由单晶铝形成的薄膜电极18的表面上形成固体氧化物膜18a，但是进入凸起电极20的通孔31的凸块26的一部分穿过该氧化膜18a，因此薄膜 电极18和凸块26以更高的精度实现。

公开(公告)号：US20050025016A1

公开(公告)日：2005-02-03

申请号：US10924445

申请日：2004-08-24

申请人： Akira Mashimo ,  Keishi Ueno

发明人： Akira Mashimo ,  Keishi Ueno

IPC分类号： G11B7/095 ,  G11B7/00 ,  G11B7/007 ,  G11B7/08

CPC分类号： G11B7/0956 ,  G11B7/00736 ,  G11B7/0938 ,  G11B7/0945 ,  G11B7/24085

摘要： A tilt detection system includes an optical disk having a series of data recorded therein, the series of data having a pulse width smaller than the minimum pulse width of data recorded in an ordinary optical disk; a reproducing part reproducing a signal from the optical disk by emitting a light beam onto the optical disk; and a tilt detecting part detecting a tilt of the light beam with respect to the optical disk based on a reproduced RF signal provided by the reproducing-part when the series of data having the smaller pulse width is reproduced.

摘要翻译： 倾斜检测系统包括具有记录在其中的一系列数据的光盘，所述一系列数据具有小于记录在普通光盘中的数据的最小脉冲宽度的脉冲宽度; 再现部分通过将光束发射到光盘上来再现来自光盘的信号; 以及当再现具有较小脉冲宽度的一系列数据时，基于由再现部分提供的再现RF信号来检测光束相对于光盘的倾斜的倾斜检测部分。

公开(公告)号：US5717679A

公开(公告)日：1998-02-10

申请号：US670526

申请日：1996-06-27

申请人： Akira Mashimo ,  Toshiki Shimizu

发明人： Akira Mashimo ,  Toshiki Shimizu

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30

CPC分类号： G11B27/24 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0953 ,  G11B2220/218 ,  G11B2220/2529 ,  G11B2220/2545 ,  G11B27/3027 ,  G11B7/00745

摘要： An apparatus for use with a recordable compact disk having an optically discernible pregroove formed thereon to provide a multiturn spiral track along which data pits are to be formed. Each pregroove turn is partly wobbled to represent addresses. Since wobble detection is easy to be impeded by track eccentricity with respect to the axis of disk rotation, a pair of compensator circuits are connected one to each output of a composite photodetector for eliminating from the photodetector output signal a frequency component due to track eccentricity. Each compensator circuit comprises a variable gain amplifier circuit, and a feedback loop for varying the amplifier gain in inverse proportion to the amplitude of the frequency component due to track eccentricity.

摘要翻译： 一种与可记录光盘一起使用的装置，其具有形成在其上的光学可辨别的预制槽，以提供要形成数据坑的多圈螺旋轨道。 每个预槽转动部分摆动以表示地址。 由于摆动检测容易被磁盘偏心度相对于磁盘旋转轴阻挡，所以一对补偿电路一个连接到复合光电检测器的每个输出端，以从光电检测器输出信号中消除由于磁道偏心引起的频率分量。 每个补偿器电路包括可变增益放大器电路和反馈回路，用于根据轨道偏心率与频率分量的振幅成反比地改变放大器增益。

公开(公告)号：US5521895A

公开(公告)日：1996-05-28

申请号：US504933

申请日：1995-07-20

申请人： Tohru Miura ,  Mitsumasa Kubo ,  Akira Mashimo

发明人： Tohru Miura ,  Mitsumasa Kubo ,  Akira Mashimo

IPC分类号： G11B7/0037 ,  G11B19/24 ,  G11B19/28 ,  G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B7/00

CPC分类号： G11B20/1403 ,  G11B19/24 ,  G11B20/10009 ,  G11B20/1258 ,  G11B7/0037

摘要： An optical disk reproducing apparatus uses a spindle motor having a low torque to reduced power consumption and manufacturing cost while maintaining a low error rate for reproduced data. The spindle motor is rotated at a constant rotational speed under a CAV control when a pick-up is moved. The rotational speed of the spindle motor is switched to a reference linear speed under a CLV control when a reproducing operation is performed. The reference linear speed is established for each of the zones of a recording area of an optical disk. The reference linear speed is determined by generating a zone clock set for each of the zones. A frequency error signal is generated by comparing the zone clock with the reproduction data so as to maintain the spindle motor at the reference linear speed determined by the zone clock.

摘要翻译： 光盘再现装置使用具有低转矩的主轴电机来降低功耗和制造成本，同时保持低重现数据的错误率。 当移动拾取器时，主轴电机在CAV控制下以恒定的转速旋转。 当执行再现操作时，主轴电机的转速在CLV控制下切换到参考线速度。 为光盘的记录区域的每个区域建立参考线速度。 参考线速度通过为每个区域生成一个区时钟来确定。 通过将区域时钟与再现数据进行比较来产生频率误差信号，以将主轴电动机保持在由区域时钟确定的参考线速度。

公开(公告)号：US5442608A

公开(公告)日：1995-08-15

申请号：US206900

申请日：1994-03-04

申请人： Yoshiaki Umeda ,  Teruo Furukawa ,  Masaharu Ogawa ,  Kazuhiko Nakane ,  Akira Mashimo ,  Tetsuro Araki ,  Hiroyuki Onda ,  Yoshiaki Sakai ,  Hiroshi Tsuyuguchi ,  Katsuya Enami

发明人： Yoshiaki Umeda ,  Teruo Furukawa ,  Masaharu Ogawa ,  Kazuhiko Nakane ,  Akira Mashimo ,  Tetsuro Araki ,  Hiroyuki Onda ,  Yoshiaki Sakai ,  Hiroshi Tsuyuguchi ,  Katsuya Enami

IPC分类号： G11B19/00 ,  G11B7/0037 ,  G11B11/105 ,  G11B19/16 ,  G11B7/00

CPC分类号： G11B19/00 ,  G11B11/10595 ,  G11B7/0037

摘要： A disk apparatus comprising a controller receiving commands from a command input device and controlling an entire operation of the disk apparatus. The rotating control function is coupled to the controller for controlling the first motor. The pickupmotor control function is coupled to the controller for controlling the second motor. The pickup control function is coupled to the controller for controlling a focusing operation and a tracking operation of the pickup. And the signal processing function is coupled to the controller for processing a recording signal to be recorded on the disk-shaped recording medium and a reproduced signal read out therefrom. The controller is comprised function-stop function for determining whether or not any command is received from the command input device during a predetermined period of time in a state. The disk apparatus is maintained in a predetermined mode and for stopping predetermined function among the rotating control function, the pickup motor control function, the pickup control function, and the signal processing function when it is determined that no command is received from the command input device during the predetermined period.

摘要翻译： 一种盘装置，包括控制器，从命令输入装置接收命令并控制盘装置的整个操作。 旋转控制功能耦合到控制器以控制第一电动机。 拾取电机控制功能耦合到控制器以控制第二电动机。 拾取控制功能耦合到控制器，用于控制拾取器的聚焦操作和跟踪操作。 并且信号处理功能被耦合到控制器，用于处理要记录在盘形记录介质上的记录信号和从其读出的再现信号。 控制器包括功能停止功能，用于在一个状态下的预定时间段内确定是否从命令输入设备接收到任何命令。 当确定没有从命令输入装置接收到命令时，盘装置被保持在预定模式并用于在旋转控制功能，拾取马达控制功能，拾取控制功能和信号处理功能之间停止预定功能 在预定期间。

公开(公告)号：US5278815A

公开(公告)日：1994-01-11

申请号：US765129

申请日：1991-09-25

申请人： Akira Mashimo ,  Mitsumasa Kubo ,  Fumio Hishiyama ,  Masayoshi Shimamoto ,  Teruo Furukawa

发明人： Akira Mashimo ,  Mitsumasa Kubo ,  Fumio Hishiyama ,  Masayoshi Shimamoto ,  Teruo Furukawa

IPC分类号： G11B7/007 ,  G11B20/14 ,  G11B5/09

CPC分类号： G11B7/00745 ,  G11B20/1403

摘要： This digital data reproducing apparatus is adapted to prevent reproduction errors of data, wherein a read gate opened when a fixed pattern in a header field for phase locking is detected is kept opened until the data reproduction in a data field is completed, whereby the phase locking in the data field is performed still in the same low-speed mode as when the PLL pull-in is completed in the header field, with the responding ability lowered to defects such as voids or the like in the phase locking pattern area in the data field.This digital data reproducing apparatus is adapted to prevent reproduction errors, wherein, when a reproduced data in a data field is locked, a read gate is opened after a fixed pattern recorded for phase locking is surely detected, so that the phase locking is started in a high-speed mode, while avoiding erroneous operations of the PLL.

摘要翻译： 该数字数据再现装置适用于防止检测到用于相位锁定的标题字段中的固定图案时读取门打开的数据的再现错误，直到数据字段中的数据再现完成为止， 数据字段仍然处于与报头字段中PLL拉入完成相同的低速模式，响应能力降低到数据中相位锁定模式区域中的诸如空白等的缺陷 领域。 该数字数据再现装置适于防止再现错误，其中当数据字段中的再现数据被锁定时，在可靠地检测到记录为相位锁定的固定图案之后，读门被打开，从而开始相位锁定 高速模式，同时避免PLL的错误操作。