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41. 再颁专利

USRE40946E1 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：USRE40946E1
公开(公告)日：2009-10-27
申请号：US10677169
申请日：2003-10-02
申请人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
发明人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/08511 , G11B2007/0006 , G11B2007/0013
摘要： An optical disk apparatus comprises a focusing means for focusing a light beam on a recording medium having first and second information faces; means for moving a focal point of the light beam in a direction substantially perpendicular to the information faces of the recording medium; means for detecting a reflected light from the recording medium; means for detecting a focus condition of the light beam on the basis on an output signal from the reflected light detecting means; a focus control means for driving the focal point moving means on the basis of an output signal from the focus condition detecting means, and controlling the light beam so that the focus condition of the light beam becomes a prescribed focus condition; and a focus jumping means for moving the focal point of the light beam from the first information face to the second information face by driving the focal point moving means.
摘要翻译：光盘装置包括用于将光束聚焦在具有第一和第二信息面的记录介质上的聚焦装置; 用于沿着与记录介质的信息面大致垂直的方向移动光束的焦点的装置; 用于检测来自记录介质的反射光的装置; 用于基于来自反射光检测装置的输出信号检测光束的聚焦条件的装置; 焦点控制装置，用于根据来自聚焦条件检测装置的输出信号驱动焦点移动装置，并控制光束使得光束的聚焦条件成为规定的聚焦条件; 以及聚焦跳跃装置，用于通过驱动焦点移动装置将光束的焦点从第一信息面移动到第二信息面。

42. 发明授权

US07193941B2 Optical disc drive with clock synchronization and rotational speed detection 失效
标题翻译：具有时钟同步和转速检测的光盘驱动器
公开(公告)号：US07193941B2
公开(公告)日：2007-03-20
申请号：US10401449
申请日：2003-03-28
申请人： Takeharu Yamamoto , Yoshihiro Kanda , Takashi Kishimoto , Rie Takahashi , Tetsuya Shihara
发明人： Takeharu Yamamoto , Yoshihiro Kanda , Takashi Kishimoto , Rie Takahashi , Tetsuya Shihara
IPC分类号： G11B27/10
CPC分类号： G11B7/0053 , G11B7/08517 , G11B19/28 , G11B20/10 , G11B20/1258 , G11B27/24 , G11B2020/10916 , G11B2020/1239 , G11B2020/1267 , G11B2020/1287 , G11B2020/1288 , G11B2220/216 , G11B2220/2537 , G11B2220/2541 , G11B2220/2562 , G11B2220/2575
摘要： An optical disc drive includes: a motor for rotating an optical disc thereon; a photoelectric transducer for converting a light beam, reflected from or transmitted through the disc, into an electric signal; a clock sync signal reader for extracting and outputting a read signal, representing a clock synchronization mark, from the electric signal; a clock generator for generating a clock signal having a variable frequency; a phase locking controller for controlling the clock generator to synchronize the clock signal in phase with the output signal of the clock sync signal reader; and a mechanism for displacing a light beam spot toward a target track on the disc. During a seek operation of displacing the light beam spot toward the target track, the clock generator is controlled to obtain a frequency to be expected on the target track and output a clock signal having the expected frequency.
摘要翻译：光盘驱动器包括：用于在其上旋转光盘的马达; 用于将从光盘反射或透过光盘的光束转换为电信号的光电传感器; 时钟同步信号读取器，用于从电信号中提取并输出表示时钟同步标记的读取信号; 时钟发生器，用于产生具有可变频率的时钟信号; 相位锁定控制器，用于控制时钟发生器，使时钟信号同步于时钟同步信号读取器的输出信号; 以及用于将光束点移向盘上的目标轨道的机构。在将光束点移向目标轨道的寻道操作期间，控制时钟发生器以获得目标轨道上预期的频率并输出具有预期频率的时钟信号。

43. 发明授权

US07154832B2 Judgement of optical disc type based on changes of rotating speed of a disc 失效
公开(公告)号：US07154832B2
公开(公告)日：2006-12-26
申请号：US10317042
申请日：2002-12-12
申请人： Yoshihiro Kanda , Takeharu Yamamoto
发明人： Yoshihiro Kanda , Takeharu Yamamoto
IPC分类号： G11B7/00
CPC分类号： G11B19/28 , G11B19/125
摘要： A type of disc is judged at high reliability irrespective of a presence of information record or magnitude of disc eccentricity. A reproduction apparatus judges the type of an optical disc to reproduce information recorded on tracks of the optical disc. The disc is classified as a type of read-only optical discs whose tracks are formed with pits and as a type of recordable optical discs whose tracks are formed with wobbling grooves. The apparatus includes a motor which rotates the optical disc, a head which irradiates the tracks of the optical disc rotated by the motor with an optical beam and outputs two detection signals corresponding to reflected light from the optical disc, and a controller which judges the type of the optical disc according to changes of a period of a specific signal contained in a push-pull signal generated from the two detection signals by varying a rotating speed of the motor.

44. 发明授权

US06891785B2 Optical disc reproduction apparatus 失效
标题翻译：光盘再现装置
公开(公告)号：US06891785B2
公开(公告)日：2005-05-10
申请号：US10153215
申请日：2002-05-21
申请人： Takeharu Yamamoto , Takashi Kishimoto , Yoshihiro Kanda , Hiroyuki Yamaguchi
发明人： Takeharu Yamamoto , Takashi Kishimoto , Yoshihiro Kanda , Hiroyuki Yamaguchi
IPC分类号： G11B7/0037 , G11B7/007 , G11B20/14 , G11B20/18 , G11B27/19 , G11B27/22 , G11B27/24 , G11B27/26 , H03L7/08 , G11B7/00
CPC分类号： G11B27/24 , G11B7/00375 , G11B7/00745 , G11B20/1403 , G11B20/1883 , G11B20/1889 , G11B27/19 , G11B27/22 , G11B27/26 , G11B2220/20 , H03L7/08
摘要： An optical disc reproduction apparatus includes a sector detection section for detecting a sector; a sector reproduction time measuring section for measuring a reproduction time of the sector, and outputting sector reproduction time data which represents the measured reproduction time of the sector; an unrecorded portion detection section for detecting an unrecorded portion which is a portion of the sector in which no data is recorded; an unrecorded portion time measuring section for measuring a reproduction time of the unrecorded portion, and outputting unrecorded portion time data which represents the measured reproduction time of the unrecorded portion; and a sector determination section for determining whether the sector is an unrecorded sector or not, based on a relationship between the sector reproduction time data and the unrecorded portion time data, the unrecorded sector being a sector which is in an unrecorded state.
摘要翻译：光盘再现装置包括用于检测扇区的扇区检测部分; 扇区再现时间测量部分，用于测量扇区的再现时间，并输出表示所测量的扇区再现时间的扇区再现时间数据; 未记录部分检测部分，用于检测作为不记录数据的扇区的一部分的未记录部分; 未记录部分时间测量部分，用于测量未记录部分的再现时间，并输出表示未记录部分的测量再现时间的未记录部分时间数据; 以及扇区确定部分，用于基于扇区再现时间数据和未记录部分时间数据之间的关系来确定扇区是否是未记录扇区，未记录扇区是处于未记录状态的扇区。

45. 发明授权

US06567357B2 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06567357B2
公开(公告)日：2003-05-20
申请号：US09839522
申请日：2001-04-20
申请人： Takashi Kishimoto , Yuuichi Kuze , Kenji Fujiune , Takeharu Yamamoto , Katsuya Watanabe
发明人： Takashi Kishimoto , Yuuichi Kuze , Kenji Fujiune , Takeharu Yamamoto , Katsuya Watanabe
IPC分类号： G11B700
CPC分类号： G11B7/08511 , G11B2007/0013
摘要： An optical disk apparatus of the present invention measures a surface deflection component (shape of surface deflection) from a low-pass component of a compensating filter in a surface deflection measuring part provided in a DSP. Furthermore, the optical disk apparatus calculates timing at which a positional change in a surface deflection component in time required for focus jumping is a predetermined value or less in a timing calculating part, and starts focus jumping at the timing. Because of this, stable focus jumping is made possible.
摘要翻译：本发明的光盘装置从设置在DSP中的表面偏转测量部中的补偿滤波器的低通分量测量表面偏转分量（表面偏转的形状）。此外，光盘装置计算定时计算部分中聚焦跳跃所需时间中的表面偏转分量的位置变化为预定值或更小的定时，并且在定时开始聚焦跳跃。因此，可以实现稳定的重点跳跃。

46. 发明授权

US06493304B2 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06493304B2
公开(公告)日：2002-12-10
申请号：US09929225
申请日：2001-08-13
申请人： Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Mitsurou Moriya
发明人： Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Mitsurou Moriya
IPC分类号： G11B700
CPC分类号： G11B19/12 , G11B7/08523
摘要： An optical disk apparatus for reproducing, or recording, information from plural types of information carriers, including: two or more light sources with different wavelengths; converging parts for converging light beams emitted from the light sources on the information carrier; movement parts for moving the converged light beam in a direction substantially perpendicular to the surface of the information carrier; convergence condition detection parts for outputting a signal corresponding to the convergence condition of the light beam on the information carrier; amplitude detection parts for measuring the amplitude of the convergence condition signal; and focus control parts for driving the movement parts in accordance with the convergence condition signal and performing control so that the convergence condition of the light beam on the information carrier becomes substantially constant. Upon start, or restart, the apparatus determines the type of loaded information carrier based on a signal from the amplitude detection parts.
摘要翻译：一种用于再现或记录来自多种信息载体的信息的光盘装置，包括：两个或更多个具有不同波长的光源; 用于将从光源发射的光束会聚在信息载体上的会聚部分; 用于沿着基本上垂直于信息载体表面的方向移动会聚光束的运动部件; 会聚条件检测部分，用于输出与信息载体上的光束的会聚条件对应的信号; 用于测量收敛条件信号的振幅的振幅检测部分; 以及用于根据会聚条件信号驱动运动部分的聚焦控制部分，并进行控制，使得光束在信息载体上的会聚状态变得基本恒定。在开始或重新启动时，装置基于来自幅度检测部分的信号来确定加载的信息载体的类型。

47. 发明授权

US06400663B1 Optical disc apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06400663B1
公开(公告)日：2002-06-04
申请号：US09660766
申请日：2000-09-13
申请人： Yuu Okada , Kenji Fujiune , Katsuya Watanabe , Takeharu Yamamoto , Jun Kikuchi
发明人： Yuu Okada , Kenji Fujiune , Katsuya Watanabe , Takeharu Yamamoto , Jun Kikuchi
IPC分类号： G11B700
CPC分类号： G11B7/0946 , G11B7/08511 , G11B7/0945 , G11B7/0948 , G11B2007/0006
摘要： An optical disc apparatus includes: a converging section for converging a light beam and irradiating a rotating information medium with the converged light beam; a moving section for moving the converging section, thereby moving a converging point of the converged light beam in a direction perpendicular to an information surface of the information medium; a converging state detection section for generating a focus servo signal which represents a converging state of the light beam on the information medium based on reflected light or transmitted light of the light beam from the information medium; a focus servo control section for controlling the moving section based on the focus servo signal, so that the light beam reaches a predetermined converging state on the information medium; and a focus pull-in section for turning ON the control by the focus servo control section, wherein the focus pull-in section turns ON the control by the focus servo control section in a case where the focus pull-in section determines that the converging point of the light beam is located in the vicinity of the minimum velocity position on the information medium axial deviation.
摘要翻译：一种光盘装置，包括：聚光部分，用于会聚光束并用会聚光束照射旋转的信息介质; 移动部分，用于移动会聚部分，从而沿着与信息介质的信息表面垂直的方向移动会聚光束的会聚点; 收敛状态检测部分，用于基于来自信息介质的光束的反射光或透射光产生表示光束在信息介质上的会聚状态的聚焦伺服信号; 聚焦伺服控制部分，用于基于聚焦伺服信号控制移动部分，使得光束在信息介质上达到预定的会聚状态; 以及聚焦引入部，用于使聚焦伺服控制部的控制接通，其中，在聚焦引入部确定会聚的情况下，聚焦引入部使聚焦伺服控制部的控制接通光点的位置位于信息介质轴向偏差的最小速度位置附近。

48. 发明授权

US06339566B1 Optical recording/reproduction device 失效
标题翻译：光记录/再现设备
公开(公告)号：US06339566B1
公开(公告)日：2002-01-15
申请号：US09713223
申请日：2000-11-16
申请人： Takashi Kishimoto , Katsuya Watanabe , Mitsurou Moriya , Takeharu Yamamoto , Kouichi Ikeuchi , Kazushi Andoh
发明人： Takashi Kishimoto , Katsuya Watanabe , Mitsurou Moriya , Takeharu Yamamoto , Kouichi Ikeuchi , Kazushi Andoh
IPC分类号： G11B709
CPC分类号： G11B7/08541 , G11B7/08517 , G11B7/08529
摘要： A speed profile constituting the target speed for the next drive process during searching is generated by target speed generating section 140 and tracking actuator 132 is driven using the error signal in regard to the speed of movement of the light beam calculated by movement speed detection section 141 from a pulse signal obtained by converting the TE signal to binary form. Also linear motor 139 is driven using the difference signal obtained from the target speed and the speed of movement. Tracking actuator 132 is controlled so as to suppress swinging of focusing lens 107 during searching and linear motor 139 moves, during searching, under tracking control to a target speed.
摘要翻译：由目标速度生成部140生成构成搜索期间的下一个驱动处理的目标速度的速度曲线，并且使用关于由移动速度检测部141计算的光束的移动速度的误差信号来驱动跟踪致动器132 从通过将TE信号转换为二进制形式获得的脉冲信号。还使用从目标速度和移动速度获得的差分信号来驱动线性电动机139。控制跟踪致动器132，以便在搜索期间抑制聚焦透镜107在搜索期间的移动，并且在跟踪控制期间移动到目标速度。

49. 发明授权

US5699334A Control devices for optical disk based on driving signal saturation 失效
标题翻译：基于驱动信号饱和的光盘控制装置
公开(公告)号：US5699334A
公开(公告)日：1997-12-16
申请号：US589861
申请日：1996-01-22
申请人： Shin-ichi Yamada , Takeharu Yamamoto , Yasuaki Edahiro , Mitsurou Moriya
发明人： Shin-ichi Yamada , Takeharu Yamamoto , Yasuaki Edahiro , Mitsurou Moriya
IPC分类号： G11B7/095 , G11B7/09
CPC分类号： G11B7/0941
摘要： A tracking control device for controlling a position of a beam spot formed by converging a light beam on a disk having tracks formed thereon includes: an actuator for moving the beam spot in a direction substantially perpendicular to the tracks; a tracking error detecting circuit for detecting a deviation of the beam spot from one of the tracks using the light beam returning from the disk and for outputting a tracking error signal indicative of the detected deviation; and a control circuit section for outputting a driving signal to drive the actuator in accordance with the tracking error signal so as to control the beam spot to be positioned on the one of the tracks. When the driving signal is saturated, the control circuit section obtains a saturation signal in accordance with an amount of the saturation, delays the saturation signal, and supplies the saturation signal to the actuator together with the driving signal.
摘要翻译：一种跟踪控制装置，用于控制通过将光束会聚在具有形成在其上的轨道的盘上而形成的光束点的位置，包括：致动器，用于沿大致垂直于轨道的方向移动光束点; 跟踪误差检测电路，用于使用从光盘返回的光束来检测光束点与其中一个光点的偏差，并输出指示检测到的偏差的跟踪误差信号; 以及控制电路部分，用于根据跟踪误差信号输出驱动信号以驱动致动器，以便控制光束点位于一条轨道上。当驱动信号饱和时，控制电路部分根据饱和量获得饱和信号，延迟饱和信号，并将饱和信号与驱动信号一起提供给致动器。

50. 发明授权

US09114447B2 Extrusion press 有权
标题翻译：挤压机
公开(公告)号：US09114447B2
公开(公告)日：2015-08-25
申请号：US13514348
申请日：2009-12-14
申请人： Takeharu Yamamoto
发明人： Takeharu Yamamoto
IPC分类号： B21C23/21
CPC分类号： B21C23/211
摘要： An extrusion press includes an end platen, a fixed platen arranged at the rear thereof, a tie rod configured to link the end platen and the fixed platen, a die, a container loaded with a billet, an extrusion stem configured to press the billet, a crosshead attached with the extrusion stem, and an extrusion drive configured to reciprocate the extrusion stem. The extrusion drive includes a rotatable wire drum driven by an electric extrusion main motor and drives the extrusion stem to perform extrusion molding by winding the wire by rotating the wire drum.
摘要翻译：挤压机包括端台板，布置在其后部的固定压板，构造成连接端板和固定压板的拉杆，模具，装有坯料的容器，构造成挤压坯料的挤压杆，与挤出杆连接的十字头和构造成使挤出杆往复移动的挤出驱动器。挤出驱动器包括由电动挤压主电机驱动的可旋转的钢丝鼓，并驱动挤出杆，通过旋转钢丝卷筒卷绕钢丝来进行挤出成型。

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