公开(公告)号：US07050363B2

公开(公告)日：2006-05-23

申请号：US10210649

申请日：2002-07-31

申请人： Yoshiyuki Otsuka ,  Mitsumasa Kubo

发明人： Yoshiyuki Otsuka ,  Mitsumasa Kubo

IPC分类号： G11B7/00 ,  G11B5/09

CPC分类号： G11B7/0901 ,  G11B7/0045 ,  G11B7/0938 ,  G11B7/24082

摘要： An optical disk device for writing data onto an optical disk having a wobble track comprises an optical pickup for irradiating laser light of a writing power and laser light of a replaying power onto an optical disk and for converting return light from the optical disk into an electrical signal, a filter for extracting a wobble component contained in the return light signal when the laser of a writing power is irradiated, a processor for detecting the direction of track deviation based on the phase of the wobble component, and an actuator for driving the optical pickup in the width direction of the track based on the direction of the track deviation in order to control the tracking. Because the phase of the wobble component differs for a case when a light spot is deviated radially inward and for a case when a light spot is deviated radially outward, the direction of the track deviation can be detected based on the phase of the wobble component and the tracking can be controlled during data writing.

摘要翻译： 用于将数据写入具有摆动轨迹的光盘的光盘装置包括：用于将写入功率的激光和重放功率的激光照射到光盘上并用于将来自光盘的返回光转换成电 信号，用于当照射写入功率的激光时提取包含在返回光信号中的摆动分量的滤波器，用于基于摆动分量的相位检测磁道偏移方向的处理器，以及用于驱动光学 基于轨道偏离的方向在轨道的宽度方向拾取，以便控制跟踪。 由于在光点径向向内偏移的情况下摆动分量的相位不同，在光点径向向外偏离的情况下，可以基于摆动分量的相位来检测轨迹偏离的方向， 在数据写入期间可以控制跟踪。

公开(公告)号：US06313601B1

公开(公告)日：2001-11-06

申请号：US09592370

申请日：2000-06-12

申请人： Mitsumasa Kubo ,  Masashi Tanaka

发明人： Mitsumasa Kubo ,  Masashi Tanaka

IPC分类号： H02P528

CPC分类号： G11B19/28 ,  H02P6/17

摘要： A three-phase motor having three Hall-effect devices for production of as many rotor position signals for use in excitation control of its windings, the signals being indicative of the angular position of the motor rotor with respect to the stator and having phase differences of 120 degrees. A motor speed control system is disclosed which utilizes the rotor position signals for detection of the actual running speed of the motor. Included are differentiating circuits connected one to each Hall-effect device for producing outputs in prescribed phase relationship with the rotor position signals. Connected to the differentiating circuits, switching transistors are controlled by binary switch control signals derived from the rotor position signals, passing the positive half-waves, or approximately positive half-waves, of the differentiating circuit outputs. The thus-obtained half-waves are then added together into a motor speed signal representative of the actual running speed of the motor. This signal is subsequently compared with a target speed signal indicative of a desired running speed of the motor, and the difference, if any, therebetween is fed as a speed control signal into a motor excitation circuit, which responds to both the rotor position signals and the speed control signal for exciting the motor windings for rotation at the desired speed.

摘要翻译： 具有三个霍尔效应装置的三相电动机，用于产生用于其绕组的励磁控制的转子位置信号，该信号表示电动机转子相对于定子的角位置，并具有相位差 120度。 公开了一种电动机速度控制系统，其利用转子位置信号来检测电动机的实际行驶速度。 包括一个与每个霍尔效应装置连接的差分电路，用于产生与转子位置信号规定的相位关系的输出。 连接到微分电路，开关晶体管由从转子位置信号导出的二进制开关控制信号控制，通过微分电路输出的正半波或近似正半波。 然后将由此获得的半波加到一起代表电动机的实际运行速度的电动机速度信号。 该信号随后与表示电动机期望运行速度的目标速度信号进行比较，并且将它们之间的差值（如果有的话）作为速度控制信号馈送到电动机励磁电路中，其响应于转子位置信号和 速度控制信号，用于以期望的速度激励电动机绕组旋转。

公开(公告)号：US5844872A

公开(公告)日：1998-12-01

申请号：US880910

申请日：1997-06-23

申请人： Mitsumasa Kubo ,  Yuichi Sakamoto ,  Masashi Tanaka

发明人： Mitsumasa Kubo ,  Yuichi Sakamoto ,  Masashi Tanaka

IPC分类号： G11B19/28 ,  G11B7/0037 ,  G11B7/095 ,  G11B19/02 ,  G11B7/00

CPC分类号： G11B19/02 ,  G11B7/0953 ,  G11B7/0956 ,  G11B7/0037

摘要： CD-ROMS of poor quality, such as those having eccentric center holes or uneven weight distributions circumferentially, tend to overload b tracking and focusing servos and to invite read errors and retries. Each CD-ROM on being loaded into a CD-ROM drive is therefore checked as to its quality preparatory to reading. The disk is first rotated at eight times the standard audio CD speed, with both tracking and focusing servo gains set at matching values. If then at least either servo malfunctions, the disk is of poor quality, fit for reading at four or two times the standard audio CD speed. If both servos function normally, on the other hand, then the disk quality is rechecked at the same speed as before but with the servo gains lowered six decibels. A malfunctioning of at least either servo at this time indicates that the disk is of intermediate quality, to be read at eight times the standard audio CD speed. On the other hand, if both servos still function normally, the disk Is of good quality, suitable for reading at 12 times the standard audio CD speed.

摘要翻译： 质量差的CD-ROMS，例如具有偏心中心孔或重量分布不均匀的CD-ROMS倾向于超载b跟踪和聚焦伺服，并引起读取错误和重试。 因此，在加载到CD-ROM驱动器中的每个CD-ROM的质量准备阅读。 磁盘首先以标准音频CD速度的八倍旋转，跟踪和聚焦伺服增益都设置为匹配值。 如果那么至少有一个伺服器出现故障，磁盘质量差，适合读取标准音频CD速度的四到二倍。 另一方面，如果两个伺服系统功能正常，则以与之前相同的速度重新检查磁盘质量，但伺服增益降低6分贝。 此时至少有一个伺服器出现故障，表示该盘具有中等质量，以标准音频CD速度的八倍读取。 另一方面，如果两个舵机仍然正常工作，则该盘质量好，适合于12倍标准音频CD读取速度。

公开(公告)号：US5602812A

公开(公告)日：1997-02-11

申请号：US554736

申请日：1995-11-07

申请人： Tohru Miura ,  Mitsumasa Kubo ,  Akira Mashimo

发明人： Tohru Miura ,  Mitsumasa Kubo ,  Akira Mashimo

IPC分类号： G11B20/14 ,  G11B7/0037 ,  G11B7/005 ,  G11B19/28 ,  G11B20/10 ,  G11B20/18 ,  G11B27/00 ,  G11B5/09

CPC分类号： G11B19/28 ,  G11B20/10 ,  G11B20/18 ,  G11B27/005 ,  G11B7/0037 ,  G11B7/005

摘要： A reproducing rate control apparatus for an optical disk includes a synchronizing clock generating unit which generates a synchronizing clock pulse with a phase locked to a phase of a digital reproduction signal. A signal processing unit generates a demodulated data signal from the digital reproduction signal in accordance with the synchronizing clock pulse, wherein the demodulated data signal is written to a memory in accordance with the synchronizing clock pulse, the demodulated data signal is read from the memory in accordance with a read reference clock pulse, and the read demodulated data signal is processed through an error correction so that a processed demodulated data signal is output. A frequency detecting unit detects whether the frequency of the synchronizing clock pulse is within a predetermined range of frequencies centered at a standard frequency. A switching unit selectively outputs one of a first read-reference clock pulse having an initial frequency and a second read-reference clock pulse having a second frequency to the signal processing unit in accordance with a result of the detection by the frequency detecting unit.

摘要翻译： 一种用于光盘的再现速率控制装置包括同步时钟产生单元，其产生锁相到数字再现信号的相位的同步时钟脉冲。 信号处理单元根据同步时钟脉冲从数字再现信号生成解调数据信号，其中根据同步时钟脉冲将解调数据信号写入存储器，从存储器中读取解调数据信号 根据读取的参考时钟脉冲，并且通过纠错来处理读取的解调数据信号，从而输出经处理的解调数据信号。 频率检测单元检测同步时钟脉冲的频率是否在以标准频率为中心的预定频率范围内。 开关单元根据频率检测单元的检测结果，将具有初始频率的第一读取参考时钟脉冲和具有第二频率的第二读取参考时钟脉冲中的一个选择性地输出到信号处理单元。

公开(公告)号：US4916449A

公开(公告)日：1990-04-10

申请号：US118261

申请日：1987-11-09

申请人： Mitsumasa Kubo ,  Tetsuro Araki

发明人： Mitsumasa Kubo ,  Tetsuro Araki

IPC分类号： H03M1/06 ,  H03M1/66

CPC分类号： H03M1/0641 ,  H03M1/66

摘要： A method and apparatus well suited for the conversion of a digitized audio signal into analog form with as wide a dynamic range as possible. A digital dither signal is added to a digital audio or like data signal to provide a digital data/dither signal. This digital data/dither signal and the digital dither signal are both converted into an analog data/dither signal and an analog dither signal respectively, and the analog dither signal is subtracted from the analog data/dither signal to obtain an analog data signal equivalent to the digital data signal. The level of the incoming digital data signal may be so high that when the digital dither signal is added thereto, the total level of the data/dither signal may exceed the capacity of the digital to analog converter in use. In that case the digital dither signal is either gated off or reduced in level, with the result that the digital to analog converter inputs either the data signal only or the data/dither signal having a total level not exceeding its capacity.

摘要翻译： 一种非常适合将数字化音频信号转换成模拟形式并具有尽可能宽的动态范围的方法和装置。 将数字抖动信号添加到数字音频或类似数据信号以提供数字数据/抖动信号。 该数字数据/抖动信号和数字抖动信号分别转换为模拟数据/抖动信号和模拟抖动信号，并从模拟数据/抖动信号中减去模拟抖动信号，以获得等效于 数字数据信号。 输入数字数据信号的电平可能会很高，当加上数字抖动信号时，数据/抖动信号的总电平可能超过使用中的数模转换器的容量。 在这种情况下，数字抖动信号被选通或降低电平，结果是数模转换器仅输入数据信号或数据/抖动信号的总电平不超过其容量。

公开(公告)号：US4751496A

公开(公告)日：1988-06-14

申请号：US881389

申请日：1986-07-02

申请人： Tetsuro Araki ,  Mitsumasa Kubo

发明人： Tetsuro Araki ,  Mitsumasa Kubo

IPC分类号： H03M1/20 ,  H03M1/00

CPC分类号： H03M1/0854 ,  H03M1/0639

摘要： A method and apparatus well suited for digitizing an audio signal with as wide a dynamic range as possible. An analog dither signal is added to an analog audio or like data signal to provide an analog data/dither signal. This analog data/dither signal and the analog dither signal are both converted into a digital data/dither signal and a digital dither signal respectively, and the digital dither signal is subsequently subtracted from the digital data/dither signal to obtain a digital data signal equivalent to the analog data signal. The magnitude of the incoming analog data signal may be so high that when the analog dither signal is added thereto, the magnitude of the resulting data/dither signal may exceed the capacity of the analog to digital converter in use. In that case the analog dither signal is either gated off or reduced in magnitude, with the result that the analog to digital converter inputs either the data signal only or the data/dither signal having a magnitude not exceeding its capacity.

摘要翻译： 一种非常适合于尽可能广泛的动态范围对音频信号进行数字化的方法和装置。 将模拟抖动信号添加到模拟音频或类似数据信号以提供模拟数据/抖动信号。 该模拟数据/抖动信号和模拟抖动信号分别被转换为数字数据/抖动信号和数字抖动信号，并且数字抖动信号随后从数字数据/抖动信号中减去以获得等效的数字数据信号 到模拟数据信号。 输入的模拟数据信号的大小可能非常高，以致当将模拟抖动信号加到其上时，所得到的数据/抖动信号的幅度可能会超过使用中的模数转换器的容量。 在这种情况下，模拟抖动信号被门控或幅度减小，结果是模数转换器仅输入数据信号或数据/抖动信号的幅度不超过其容量。

公开(公告)号：US08435439B2

公开(公告)日：2013-05-07

申请号：US12736362

申请日：2009-03-19

申请人： Seita Uekawa ,  Syuji Majima ,  Mitsumasa Kubo

发明人： Seita Uekawa ,  Syuji Majima ,  Mitsumasa Kubo

IPC分类号： B28B1/00

CPC分类号： C22B1/214 ,  C22B1/2406 ,  C22B1/243 ,  Y02P10/216

摘要： A method of production of cement bonded agglomerated ore not depending on yard curing which can improve the environment, save labor, and improve yield is provided, that is, a method of production of cement bonded agglomerated ore which adds Portland cement as a binder to dust produced from an iron works and/or fine powder ore, treats the same by mixing, moisture adjustment, and kneading steps, then pelletizes it by a pan pelletizer and suitably thereafter cures it to produce blast furnace-use cold pellets or sintering-use minipellets having the required crushing strength, which method charges the raw pellets from the top of a vertical type container and discharges them from the bottom end to form a moving bed and cures the raw pellets in the period from charging to discharging.

摘要翻译： 提供了不依赖于庭院固化的水泥粘结凝聚矿石的生产方法，其可以改善环境，节省劳动力并提高产量，即生产水泥粘结的附聚矿石的方法，其将波特兰水泥作为粘合剂添加到灰尘中 由铁制品和/或细粉矿石制成，通过混合，湿度调节和捏合步骤进行处理，然后用盘式造粒机造粒，然后适当地固化，以生产高炉使用的冷丸或烧结用小丸 具有所需的破碎强度，该方法从垂直型容器的顶部对原料颗粒进行充填，并从底端排出它们以形成移动床，并且在从充填到排出的时间段中固化生颗粒。

公开(公告)号：US08261097B2

公开(公告)日：2012-09-04

申请号：US11963672

申请日：2007-12-21

申请人： Mitsumasa Kubo ,  Akira Shinohara

发明人： Mitsumasa Kubo ,  Akira Shinohara

IPC分类号： G06F12/14

CPC分类号： H04L9/0897

摘要： A data recording apparatus and a data reproducing apparatus which ensure security of a portable recording medium, such as an optical disk. The apparatus has a security mode and a normal mode as operation modes. In the security mode, a system controller of the apparatus records a security identification signal in an area other than a user data area of the optical disk. At the time of copying of the optical disk, the security identification signal disappears, and a limitation is imposed on reproduction, thereby preventing copying operation. In the security mode, the system controller records the security identification signal in the area other than the user data area of the optical disk, as well as recording user data by means of converting an address through use of a password. At the time of reproduction of data, absence or presence of the security identification signal is ascertained. When the security identification signal is present, the address is inversely converted, thereby reproducing data.

摘要翻译： 一种确保诸如光盘的便携式记录介质的安全性的数据记录装置和数据再现装置。 该装置具有安全模式和正常模式作为操作模式。 在安全模式下，该装置的系统控制器在光盘的用户数据区域以外的区域记录安全识别信号。 在复制光盘时，安全识别信号消失，并且对再现进行限制，从而防止复制操作。 在安全模式下，系统控制器将安全识别信号记录在光盘的用户数据区域以外的区域中，并通过使用密码转换地址来记录用户数据。 在再现数据时，确定不存在或存在安全识别信号。 当存在安全识别信号时，地址被反向转换，从而再现数据。

公开(公告)号：US06044052A

公开(公告)日：2000-03-28

申请号：US345152

申请日：1999-06-30

申请人： Mitsumasa Kubo ,  Yuichi Sakamoto ,  Masashi Tanaka

发明人： Mitsumasa Kubo ,  Yuichi Sakamoto ,  Masashi Tanaka

IPC分类号： G11B7/09 ,  G11B7/095 ,  G11B19/04 ,  G11B3/90

CPC分类号： G11B19/04 ,  G11B7/09 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/095 ,  G11B7/0953 ,  G11B7/0956

摘要： CD-ROMS of more or less poor quality, such as those having eccentric center holes or uneven weight distributions circumferentially, tend to overload tracking and focusing servos and hence to invite read errors and retries. Each CD-ROM on being loaded into a CD-ROM drive is therefore checked as to its quality preparatory to reading. Either or both of the servos may fail to keep the read beam under control if the disk is not of good quality. Such unlocking of either or both servos is detected in terms of the number of transducer output pulses, the magnitude of transducer output voltage, or the number of read errors, during a complete disk revolution. Disk quality is first checked at four times the standard audio CD speed, then at eight times that speed, and finally at twelve times that speed. Disks of poor quality are read at two times the standard audio CD speed, those of below-average quality at four times that speed, those of above-average quality at eight times that speed, and those of good quality at twelve times that speed.

摘要翻译： 质量差异较小的CD-ROMS（例如具有偏心中心孔或不均匀重量分布在周向上）倾向于过载跟踪和聚焦伺服，并因此引起读取错误和重试。 因此，在加载到CD-ROM驱动器中的每个CD-ROM的质量准备阅读。 如果磁盘质量不好，则伺服器中的任何一个或两个可能无法使读取光束受到控制。 根据传感器输出脉冲的数量，换能器输出电压的大小或读取错误的数量，在完整的盘旋转期间检测这两个或两个伺服的这种解锁。 磁盘质量首先是标准音频CD速度的四倍，然后是该速度的八倍，最后是该速度的十二倍。 质量差的磁盘读取标准音频CD速度的两倍，低于平均质量的四倍速度，高于平均质量的八倍速度，以及高达十二倍的质量。

公开(公告)号：US5982725A

公开(公告)日：1999-11-09

申请号：US888881

申请日：1997-07-07

申请人： Mitsumasa Kubo ,  Yukihiko Okada

发明人： Mitsumasa Kubo ,  Yukihiko Okada

IPC分类号： G11B7/0037 ,  G11B7/095 ,  G11B19/04 ,  G11B19/26 ,  G11B19/28 ,  G11B7/00

CPC分类号： G11B19/26 ,  G11B19/04 ,  G11B19/28 ,  G11B7/0037 ,  G11B7/0953 ,  G11B7/0956

摘要： CD-ROMS of poor quality, such as those having eccentric center holes or uneven weight distributions circumferentially, are easy to wobble or otherwise vibrate when driven at high speed, overloading tracking and focusing servos and inviting read errors and retries. Each CD-ROM on being loaded into a CD-ROM drive is therefore checked as to its quality in terms of the speed of rotation at which the disk drive motor gains a steady state on being started up at a full supply voltage. The poorer the disk quality, the lower is the steady state speed of motor rotation. A poor quality disk is read at four times the standard audio CD speed, an intermediate quality disk at eight times that speed, and a good quality disk at twelve times that speed.

摘要翻译： 质量差的CD-ROMS，例如具有偏心中心孔或重量分布不均匀的CD-ROMS在高速驱动时容易摇摆或振动，过载跟踪和聚焦伺服，并引起读取错误和重试。 因此，在加载到CD-ROM驱动器中的每个CD-ROM的质量就其在盘驱动电动机在全电源电压下启动时获得稳定状态的旋转速度方面被检查。 磁盘质量越差，电机旋转的稳态速度越低。 以四倍的标准音频CD速度读取质量差的磁盘，以8倍速的中间质量磁盘读取，并以十倍的速度读取优质磁盘。