公开(公告)号：US06212159B1

公开(公告)日：2001-04-03

申请号：US09517074

申请日：2000-03-01

申请人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

发明人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

IPC分类号： G11B724

CPC分类号： G11B17/0282 ,  G11B7/0037 ,  G11B23/0035

摘要： A turntable is a table mounted to a shaft (4) of a spindle motor and the turntable supports a laminated disc thereon and drives the disc in rotation. The laminated disc includes a lower disc and an upper disc stacked on the lower disc, and is supported on a disc-supporting surface. When the disc is loaded on the turntable, a fitting member fits into the center hole of the laminated disc for centering the laminated disc with respect to the shaft. The fitting member fits the center hole of the lower disc when the laminated disc is supported on said disc-supporting surface. The turntable may include a tapered member which guides the laminated disc to the disc-supporting surface. The laminated disc includes lower and upper discs each having an edge which defines the center hole. The corners of the edges are cut away along a circumference of the center hole. The upper and lower discs are placed together so that the cut-away corner directly face each other.

摘要翻译： 转台是安装在主轴电动机的轴（4）上的工作台，并且转台在其上支撑层压盘，并驱动盘旋转。 层压盘包括下盘和堆叠在下盘上的上盘，并且支撑在盘支撑表面上。 当盘被装载在转盘上时，配合构件装配在层压盘的中心孔中，用于使层压盘相对于轴定心。 当层压盘被支撑在所述盘支撑表面上时，配合构件适合于下盘的中心孔。 转台可以包括锥形构件，其将层叠的盘引导到盘支撑表面。 层压盘包括每个具有限定中心孔的边缘的下盘和上盘。 沿着中心孔的圆周切割边缘的角。 上下盘被放置在一起，使得切割角直接面对彼此。

公开(公告)号：US5889757A

公开(公告)日：1999-03-30

申请号：US863620

申请日：1997-05-27

申请人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

发明人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

IPC分类号： G11B7/24 ,  G11B7/0037 ,  G11B17/028 ,  G11B23/00 ,  G11B3/70

CPC分类号： G11B17/0282 ,  G11B23/0035 ,  G11B7/0037

摘要： A turntable is a table mounted to a shaft (4) of a spindle motor and the turntable supports a laminated disc thereon and drives the disc in rotation. The laminated disc includes a lower disc and an upper disc stacked on the lower disc, and is supported on a disc-supporting surface. When the disc is loaded on the turntable, a fitting member fits into the center hole of the laminated disc for centering the laminated disc with respect to the shaft. The fitting member fits the center hole of the lower disc when the laminated disc is supported on the disc-supporting surface. The turntable may include a tapered member which guides the laminated disc to the disc-supporting surface. The laminated disc includes lower and upper discs each having an edge which defines the center hole. The corners of the edges are cut away along a circumference of the center hole. The upper and lower discs are placed together so that the cut-away corner directly face each other.

摘要翻译： 转台是安装在主轴电动机的轴（4）上的工作台，并且转台在其上支撑层压盘，并驱动盘旋转。 层压盘包括下盘和堆叠在下盘上的上盘，并且支撑在盘支撑表面上。 当盘被装载在转盘上时，配合构件装配在层压盘的中心孔中，用于使层压盘相对于轴定心。 当层压盘被支撑在盘支撑表面上时，配合构件适合下盘的中心孔。 转台可以包括锥形构件，其将层叠的盘引导到盘支撑表面。 层压盘包括每个具有限定中心孔的边缘的下盘和上盘。 沿着中心孔的圆周切割边缘的角。 上下盘被放置在一起，使得切割角直接面对彼此。

公开(公告)号：US5383169A

公开(公告)日：1995-01-17

申请号：US196463

申请日：1994-02-15

申请人： Masahisa Shinoda ,  Kenjiro Kime ,  Toshiya Matozaki ,  Keiji Nakamura ,  Toru Yoshihara ,  Takeshi Ito

发明人： Masahisa Shinoda ,  Kenjiro Kime ,  Toshiya Matozaki ,  Keiji Nakamura ,  Toru Yoshihara ,  Takeshi Ito

IPC分类号： G11B7/09

CPC分类号： G11B7/0938 ,  G11B7/0904 ,  G11B7/094

摘要： An optical recording and reproducing apparatus uses a laser to form one or more spots on an information recording medium preformatted with wobbling guide grooves, and detects tracking error. If the differential push-pull method of detecting tracking error is used, a center spot is flanked by satellite spots distant by an odd multiple of half time repeating period of tile wobble. If tile three-beam method is used, the distance is an odd multiple of one-fourth the repeating period of the wobble. If the push-pull method is used, a split photodetector generates a pair of electrical signals. The sum and difference of these signals are filtered, then synchronously detected, and the result is combined with the difference signal to generate a corrected tracking error signal.

摘要翻译： 光学记录和再现装置使用激光器在预先格定有摆动引导槽的信息记录介质上形成一个或多个点，并且检测跟踪误差。 如果使用检测跟踪误差的差分推挽方法，则中心点位于远离瓦片摆动的半个时间重复周期的奇数倍的卫星点。 如果采用瓦片三波束法，距离是摆动重复周期的四分之一的奇数倍。 如果使用推挽方法，则分离光电检测器产生一对电信号。 这些信号的和差被滤波，然后同步检测，结果与差分信号相结合，产生校正的跟踪误差信号。

公开(公告)号：US5313447A

公开(公告)日：1994-05-17

申请号：US77969

申请日：1993-06-18

申请人： Nobuo Takeshita ,  Kenjiro Kime ,  Teruo Fujita ,  Hiroo Shimegi ,  Kazuo Okada

发明人： Nobuo Takeshita ,  Kenjiro Kime ,  Teruo Fujita ,  Hiroo Shimegi ,  Kazuo Okada

IPC分类号： G11B7/135

CPC分类号： G11B7/1359

摘要： An optical head for recording, reproducing or erasing data by emitting a light beam irradiated from a light source onto a recording medium. To reduce the height of the optical head, an optical axis shifting device is disposed between a light beam emitting device and a condensing device for condensing the light beam onto the recording medium. This optical axis shifting device shifts the first optical axis of the light beam from the light beam emitting device to a second optical axis positioned in parallel and spaced apart from each other. As the optical axis shifting device, there is preferable employed a prism having two reflecting faces lying in parallel, and the optical axis, after shifting is to be positioned downwardly of the position of the optical axis before shifting, thereby reducing the height of the optical head.

摘要翻译： 用于通过将从光源照射的光束发射到记录介质上来记录，再现或擦除数据的光学头。 为了降低光头的高度，光轴移动装置设置在光束发射装置和用于将光束聚集到记录介质上的聚光装置之间。 该光轴移动装置将光束的第一光轴从光束发射装置移动到彼此平行且间隔开的第二光轴。 作为光轴移动装置，优选使用具有平行的两个反射面的棱镜，移动后的光轴位于移动前的光轴的位置的下方，由此降低光学的高度 头。

公开(公告)号：US5182739A

公开(公告)日：1993-01-26

申请号：US547502

申请日：1990-07-02

申请人： Kenjiro Kime ,  Naoyuki Egusa ,  Keiji Nakamura

发明人： Kenjiro Kime ,  Naoyuki Egusa ,  Keiji Nakamura

IPC分类号： G11B7/085 ,  G11B7/09 ,  G11B7/095

CPC分类号： G11B7/0925 ,  G11B7/0956

摘要： An optical head which optically records and regenerates data by condensing light beams from a light source on the disk surface, wherein a plurality of piezoelectric elements are arranged to correct the tilt of a condensing lens or the tilt of optical system supporting means for making the optical axis of the condensing lens for condensing light beams on the disk surface or the light beams orthogonal to the disk surface.An optical disk drive provided with an optical head, wherein a plurality of piezoelectric elements are arranged to correct the tilt of the disk for making the optical axis of a condensing lens which condenses light beams on the disk surface orthogonal to the disk surface.

摘要翻译： 一种光学头，其通过将来自光源的光束聚集在盘表面上光学地记录和再生数据，其中多个压电元件被布置成校正聚光透镜的倾斜或用于制造光学系统的光学系统支撑装置的倾斜 用于将光束聚集在盘表面上的聚光透镜的轴线或者与光盘表面正交的光束。 具有光头的光盘驱动器，其中多个压电元件被布置成用于校正盘的倾斜，以使聚光透镜的光轴聚光在与盘表面正交的盘表面上。

公开(公告)号：US6049522A

公开(公告)日：2000-04-11

申请号：US89395

申请日：1998-06-03

申请人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

发明人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

IPC分类号： G11B7/24 ,  G11B7/0037 ,  G11B17/028 ,  G11B23/00

CPC分类号： G11B17/0282 ,  G11B23/0035 ,  G11B7/0037

摘要： A turntable is a table mounted to a shaft (4) of a spindle motor and the turntable supports a laminated disc thereon and drives the disc in rotation. The laminated disc includes a lower disc and an upper disc stacked on the lower disc, and is supported on a disc-supporting surface. When the disc is loaded on the turntable, a fitting member fits into the center hole of the laminated disc for centering the laminated disc with respect to the shaft. The fitting member fits the center hole of the lower disc when the laminated disc is supported on said disc-supporting surface. The turntable may include a tapered member which guides the laminated disc to the disc-supporting surface. The laminated disc includes lower and upper discs each having an edge which defines the center hole. The corners of the edges are cut away along a circumference of the center hole. The upper and lower discs are placed together so that the cut-away corner directly face each other.

摘要翻译： 转台是安装在主轴电动机的轴（4）上的工作台，并且转台在其上支撑层压盘，并驱动盘旋转。 层压盘包括下盘和堆叠在下盘上的上盘，并且支撑在盘支撑表面上。 当盘被装载在转盘上时，配合构件装配在层压盘的中心孔中，用于使层压盘相对于轴定心。 当层压盘被支撑在所述盘支撑表面上时，配合构件适合于下盘的中心孔。 转台可以包括锥形构件，其将层叠的盘引导到盘支撑表面。 层压盘包括每个具有限定中心孔的边缘的下盘和上盘。 沿着中心孔的圆周切割边缘的角。 上下盘被放置在一起，使得切割角直接面对彼此。

公开(公告)号：US5687032A

公开(公告)日：1997-11-11

申请号：US592178

申请日：1996-01-26

申请人： Nobuo Takeshita ,  Teruo Fujita ,  Morihiro Karaki ,  Mitsuru Irie ,  Kazuhiko Nakane ,  Kenjiro Kime ,  Hideaki Kobachi

发明人： Nobuo Takeshita ,  Teruo Fujita ,  Morihiro Karaki ,  Mitsuru Irie ,  Kazuhiko Nakane ,  Kenjiro Kime ,  Hideaki Kobachi

IPC分类号： G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B7/13 ,  G11B7/135 ,  G11B7/14 ,  G11B7/22 ,  G02B7/02

CPC分类号： G11B7/133 ,  G11B7/00718 ,  G11B7/0908 ,  G11B7/0916 ,  G11B7/0933 ,  G11B7/0935 ,  G11B7/094 ,  G11B7/0948 ,  G11B7/0956 ,  G11B7/1353 ,  G11B7/1381 ,  G11B7/14 ,  G11B7/22 ,  G11B7/0909

摘要： An optical device inclination angle adjuster for adjusting an optical axis of an optical device. The optical device has an optical axis and a peripheral portion, and is held by a holder. The adjuster includes an annular plate inserted between the optical device and the holder. The annular plate is in alignment with the peripheral portion of the optical device, and has an opening with an axis in alignment with the optical axis of the optical device to permit passage of light through the opening of the annular plate and through the optical device. A first pair of projections are formed between the annular plate and the optical device. The first pair of projections are disposed diametrically opposite to each other with respect to the optical axis and project in a direction parallel to the optical axis. A second pair of projections are formed between the annular plate and the holder. The second pair of projections are disposed diametrically opposite to each other with respect to the optical axis and project in a direction parallel to the optical axis. The first pair of projections and the second pair of projections are disposed at different rotary angles about the optical axis; whereby the inclination angle is adjusted by rotating the optical device about the first pair of projections or about the second pair of projections.

摘要翻译： 一种用于调节光学装置的光轴的光学装置倾斜角度调节器。 光学装置具有光轴和周边部分，并由保持器保持。 调节器包括插入在光学装置和保持器之间的环形板。 环形板与光学装置的周边部分对准，并且具有与光学装置的光轴对准的轴线的开口，以允许光通过环形板的开口并通过光学装置。 第一对突起形成在环形板和光学装置之间。 第一对突起相对于光轴彼此沿径向相对设置，并且在平行于光轴的方向上突出。 第二对突起形成在环形板和支架之间。 第二对突起相对于光轴彼此沿径向相对设置，并且沿与光轴平行的方向突出。 第一对突起和第二对突起以围绕光轴的不同旋转角设置; 由此通过围绕第一对突起或围绕第二对突起旋转光学装置来调节倾斜角度。

公开(公告)号：US5434834A

公开(公告)日：1995-07-18

申请号：US321876

申请日：1994-10-14

申请人： Masahisa Shinoda ,  Kenjiro Kime ,  Toshiya Matozaki ,  Keiji Nakamura ,  Toru Yoshihara ,  Takeshi Ito

发明人： Masahisa Shinoda ,  Kenjiro Kime ,  Toshiya Matozaki ,  Keiji Nakamura ,  Toru Yoshihara ,  Takeshi Ito

IPC分类号： G11B7/09

CPC分类号： G11B7/0938 ,  G11B7/0904 ,  G11B7/094

摘要： An optical recording and reproducing apparatus uses a laser to form one or more spots on an information recording medium preformatted with wobbling guide grooves, and detects tracking error. If the differential push-pull method of detecting tracking error is used, a center spot is flanked by satellite spots distant by an odd multiple of half the repeating period of tile wobble. If the three-beam method is used, the distance is an odd multiple of one-fourth the repeating period of the wobble. If the push-pull method is used, a split photodetector generates a pair of electrical signals. The sum and difference of these signals are filtered, then synchronously detected, and the result is combined with the difference signal to generate a corrected tracking error signal.

摘要翻译： 光学记录和再现装置使用激光器在预先格定有摆动引导槽的信息记录介质上形成一个或多个点，并且检测跟踪误差。 如果使用检测跟踪误差的差分推挽方法，则中心点位于远离瓦片摆动的重复周期的一半的奇数倍的卫星点。 如果使用三光束方式，距离是摆动重复周期的四分之一的奇数倍。 如果使用推挽方法，则分离光电检测器产生一对电信号。 这些信号的和差被滤波，然后同步检测，结果与差分信号相结合，产生校正的跟踪误差信号。

公开(公告)号：US5247493A

公开(公告)日：1993-09-21

申请号：US333686

申请日：1989-04-05

申请人： Kenjiro Kime ,  Keiji Nakamura ,  Isao Watanabe ,  Hajime Nakajima

发明人： Kenjiro Kime ,  Keiji Nakamura ,  Isao Watanabe ,  Hajime Nakajima

IPC分类号： G01B11/02 ,  G11B7/09 ,  G11B11/105

CPC分类号： G01B11/026 ,  G11B11/10534 ,  G11B11/10556 ,  G11B11/10576 ,  G11B7/0937

摘要： Magneto-optical disk recording and reproducing devices and actuators and distance detectors for use therewith are disclosed. The magneto-optical disk device includes a bimorph type actuator or an electromagnetic actuator for driving the magnetic head of the magneto-optical disk device. The bimorph actuator has a metallic shim having a width that varies with respect to the longitudinal distance in inverse proportion to the normal function of the first or the second free natural vibration mode. Alternatively, the bimorph type actuator has a recess formed on a bimorph element to expose a piezoelectric portion which outputs a voltage corresponding to the acceleration of the vibration of the actuator. The driver circuit of the actuator reduces the driving voltage when the frequency of the voltage generated at the recess comes into the neighborhood of a higher resonance frequency of the actuator. The optical distance detector comprises a light-emitting diode and a pair of photodiodes which detects the amount of light incident thereon after the light is reflected from a surface of an object the distance to which is measured. The geometric parameters of the photodiodes are selected such that the output of a first photodiode decreases as the measured distance increases while the output of a second photodiode increases as the measured distance increases. Thus, the normalized differential output of the two photodiodes, from which the measured distance is determined, varies substantially linearly with respect to the measured distance. In preferred forms, the photodetectors have stepped concentric configurations so that small distances can be measured accurately and efficiently.

公开(公告)号：US5105405A

公开(公告)日：1992-04-14

申请号：US329899

申请日：1989-04-24

申请人： Akira Hashimoto ,  Kenjiro Kime

发明人： Akira Hashimoto ,  Kenjiro Kime

IPC分类号： G11B7/09

CPC分类号： G11B7/093

摘要： An objective lens driving device of a sliding shaft type is mounted on an optical information recording and reproducing apparatus. The objective lens driving device includes an armature unit having a magnet magnetized in a plurality of pairs of magnetic poles, and a stator unit having a yoke, and control coils mounted on the yoke. The magnet is disposed with the boundaries between the magnetic poles which are respectively opposite gaps formed in the yoke. The objective lens driving device has an improved reliability and a reduced number of component parts.