专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US08729846B2 Motor drive system and control method thereof 有权
标题翻译：电机驱动系统及其控制方法
公开(公告)号：US08729846B2
公开(公告)日：2014-05-20
申请号：US13810304
申请日：2012-04-23
申请人： Hideki Nakata
发明人： Hideki Nakata
IPC分类号： H02P1/04 , H02P6/16 , H02P7/00 , H02P27/00 , H02P27/04
CPC分类号： H02P1/04 , H02P21/22 , H02P27/06
摘要： A motor drive system includes an inverter that supplies power to a three-phase motor, and a control unit that, when first stopping and then commencing supply of alternating current to three phases of the three-phase motor, switches from first control to third control and then to second control. The first control places switching elements in the inverter in a non-conduction state, the second control is a PWM control of the switching elements, and the third control places and keeps a switching element of each of an upper arm and a lower arm in the conduction state until commencement of the supply of current. The upper arm corresponds to a phase through which current flows in a direction entering the motor upon commencement of the supply, and the lower arm corresponds to a phase through which current flows in a direction exiting the motor upon commencement of the supply.
摘要翻译：电动机驱动系统包括向三相电动机供电的逆变器，以及控制单元，其在首次停止然后开始向三相电动机的三相供给交流电时，从第一控制切换到第三控制然后再进行二次控制。第一控制将逆变器中的开关元件置于非导通状态，第二控制是开关元件的PWM控制，并且第三控制将上臂和下臂中的每一个的开关元件放置在导通状态直到电流供应开始。上臂对应于在供应开始时电流在进入电动机的方向上流动的相位，并且下臂对应于在供应开始时电流沿着离开电动机的方向流过的相位。

52. 发明申请

US20130187588A1 MOTOR DRIVE SYSTEM AND CONTROL METHOD THEREOF 有权
标题翻译：电机驱动系统及其控制方法
公开(公告)号：US20130187588A1
公开(公告)日：2013-07-25
申请号：US13810304
申请日：2012-04-23
申请人： Hideki Nakata
发明人： Hideki Nakata
IPC分类号： H02P1/04
CPC分类号： H02P1/04 , H02P21/22 , H02P27/06
摘要： A motor drive system comprising: an inverter that supplies power to a three-phase motor; and a control unit that, when first stopping and then commencing supply of alternating current to three phases of the three-phase motor, switches from first control to third control and then to second control, the first control putting switching elements in the inverter in a non-conduction state, the second control being PWM control of the switching elements, and the third control putting and keeping a switching element of each of an upper arm and a lower arm in the conduction state until commencement of the supply of current, the upper arm corresponding to a phase through which current flows in a direction entering the motor upon commencement of the supply, the lower arm corresponding to a phase through which current flows in a direction exiting the motor upon commencement of the supply.
摘要翻译：一种电动机驱动系统，包括：向三相电动机供电的逆变器; 以及控制单元，当首先停止然后开始向三相电动机的三相供应交流电时，从第一控制切换到第三控制，然后转换到第二控制，第一控制将开关元件置于逆变器中非导通状态，第二控制是开关元件的PWM控制，并且第三控制将上臂和下臂中的每一个的开关元件放置并保持在导通状态，直到电流供应开始，上部臂对应于在供应开始时电流在进入电动机的方向上流动的相位，下臂对应于在供应开始时电流在离开电动机的方向上流过的相位。

53. 发明授权

US08488431B2 Optical head and optical information device 有权
标题翻译：光头和光信息设备
公开(公告)号：US08488431B2
公开(公告)日：2013-07-16
申请号：US13391110
申请日：2011-06-15
申请人： Hideki Nakata , Hidenori Wada
发明人： Hideki Nakata , Hidenori Wada
IPC分类号： G11B7/00
CPC分类号： G11B7/131 , G11B2007/0013
摘要： Provided are an optical head and an optical information device capable of inhibiting the temperature rise of a photodetector. An optical head (10) includes a semiconductor laser (101) which emits a luminous flux, an objective lens (105) which focuses the luminous flux emitted from the semiconductor laser (101) on the optical disk (21), and a photodetector (120) which detects the luminous flux reflected by the optical disk (21). The photodetector (120) includes a light receiving part (123) which receives the luminous flux reflected by the optical disk (21), a package (125) which covers the light receiving part (123), and a heat transfer adhesion layer (124) disposed between the package (125) and the light receiving part (123). The heat transfer adhesion layer (124) is formed in a region that is on the light receiving part (123) and includes a light path through which the luminous flux reflected by the optical disk (21) passes.
摘要翻译：提供了能够抑制光电检测器的温度上升的光学头和光学信息装置。光头（10）包括发射光束的半导体激光器（101），将从半导体激光器（101）发射的光束聚焦在光盘（21）上的物镜（105）和光电检测器 120），其检测由光盘（21）反射的光束。光电检测器（120）包括：光接收部分（123），其接收由光盘（21）反射的光束;覆盖光接收部分（123）的封装（125）;以及传热粘附层）设置在所述封装（125）和所述光接收部（123）之间。传热粘附层（124）形成在光接收部分（123）上的区域中，并且包括由光盘（21）反射的光束通过的光路。

54. 发明授权

US07915832B2 Plasma display panel drive circuit and plasma display apparatus 失效
标题翻译：等离子显示面板驱动电路和等离子显示装置
公开(公告)号：US07915832B2
公开(公告)日：2011-03-29
申请号：US11817354
申请日：2006-02-08
申请人： Yasuhiro Arai , Hideki Nakata , Toshikazu Nagaki , Satoshi Ikeda
发明人： Yasuhiro Arai , Hideki Nakata , Toshikazu Nagaki , Satoshi Ikeda
IPC分类号： G09G3/10
CPC分类号： G09G3/2965 , G09G3/2927 , G09G2310/066
摘要： A drive circuit for driving a plasma display panel (PDP) includes a pulse voltage generator that contains main switching elements disposed on a high voltage side and on a low voltage side, is operable to generate a pulse voltage by operating the main switching elements in accordance with an output voltage from a first power supply and apply the pulse voltage to a PDP scan electrode and sustain electrode, and a reset voltage generator operable to generate a reset voltage in accordance with an output voltage from a second power supply and apply it to the PDP. The pulse voltage generator contains a first diode that prevents the voltage output by the reset voltage generator from being applied backward to the first power supply and a first switching element connected to the first diode in parallel.
摘要翻译：用于驱动等离子体显示面板（PDP）的驱动电路包括脉冲电压发生器，其包含设置在高压侧和低电压侧的主开关元件，其可操作以通过根据主开关元件操作来产生脉冲电压具有来自第一电源的输出电压并将脉冲电压施加到PDP扫描电极和维持电极;以及复位电压发生器，其可操作以根据来自第二电源的输出电压产生复位电压并将其施加到 PDP。脉冲电压发生器含有第一二极管，其防止复位电压发生器的电压输出向后施加到第一电源，并且第一开关元件并联连接到第一二极管。

55. 发明授权

US07821903B2 Optical pickup device and optical recording medium driving device 有权
标题翻译：光拾取装置和光记录介质驱动装置
公开(公告)号：US07821903B2
公开(公告)日：2010-10-26
申请号：US11980434
申请日：2007-10-31
申请人： Hideki Nakata , Akihiro Arai , Hiroshi Shibata , Yoichi Yamamoto
发明人： Hideki Nakata , Akihiro Arai , Hiroshi Shibata , Yoichi Yamamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/1365 , G11B7/1263 , G11B7/1362 , G11B7/1374 , G11B7/1395 , G11B2007/0006
摘要： An optical pickup device has a first light source and a second light source each adapted for outputting a laser beam of a predetermined wavelength, a photodetector for detecting an intensity of the laser beam outputted from the first light source or the second light source to control the power of the laser beam to be outputted from the first light source or the second light source, a wideband quarter wavelength plate for converting the laser beam outputted from the first light source or the second light source into a circularly polarized laser beam, and a first rise-up mirror and a second rise-up mirror for guiding a P-polarized component in the laser beam converted by the wideband quarter wavelength plate to the photodetector, and guiding an S-polarized component in the laser beam different from the P-polarized component to an optical recording medium. With this arrangement, provided are an optical pickup device and an optical recording medium driving device capable of accurately controlling the power of the light source.
摘要翻译：光拾取装置具有第一光源和第二光源，每个第一光源和第二光源适于输出预定波长的激光束;光检测器，用于检测从第一光源或第二光源输出的激光束的强度，从第一光源或第二光源输出的激光束的功率;宽带四分之一波长板，用于将从第一光源或第二光源输出的激光束转换为圆偏振激光束;以及第一上升反射镜和用于将由宽带四分之一波长板转换的激光束中的P偏振分量引导到光电检测器的第二上升反射镜，并且引导与P偏振光不同的激光束中的S偏振分量分量到光记录介质。利用这种布置，提供了能够精确地控制光源的功率的光学拾取装置和光学记录介质驱动装置。

56. 发明申请

US20100182890A1 OPTICAL DISK RECORDING/REPRODUCING DEVICE AND OPTICAL HEAD 有权
标题翻译：光盘记录/复印设备和光头
公开(公告)号：US20100182890A1
公开(公告)日：2010-07-22
申请号：US12438168
申请日：2007-08-09
申请人： Hideki Nakata , Hideki Aikoh , Masayuki Shiwa
发明人： Hideki Nakata , Hideki Aikoh , Masayuki Shiwa
IPC分类号： G11B7/00
CPC分类号： G11B7/08582 , G11B2007/0006
摘要： An optical disk recording/reproducing device includes a turntable 7 configured to rotate an optical disk 9 and an optical head 3 configured to record/reproduce information in/from the optical disk 9. A stepping motor 13 to drive a collimator lens 16 is mounted on a head base 17 of the optical head 3 and a part of stator 42 of the stepping motor 13 is exposed through an opening 14a of a head cover 14, an opening 15a of a flexible substrate 15, an opening 13a of a cover 41, and an opening 13b of the cover 41.
摘要翻译：一种光盘记录/再现装置，包括旋转光盘9的转盘7和被配置为在/从光盘9进行信息记录/再现信息的光头3.将驱动准直透镜16的步进电机13安装在光头3的头座17和步进电机13的定子42的一部分通过头盖14的开口14a，柔性基底15的开口15a，盖41的开口13a和盖41的开口13b。

57. 发明申请

US20090179829A1 PLASMA DISPLAY PANEL DRIVING CIRCUIT AND PLASMA DISPLAY APPARATUS 审中-公开
标题翻译：等离子显示面板驱动电路和等离子显示设备
公开(公告)号：US20090179829A1
公开(公告)日：2009-07-16
申请号：US12064619
申请日：2006-08-18
申请人： Hideki Nakata , Jumpei Hashiguchi
发明人： Hideki Nakata , Jumpei Hashiguchi
IPC分类号： G09G3/28
CPC分类号： G09G3/296 , G09G3/2942 , G09G3/2965 , G09G2320/066 , G09G2330/028
摘要： An object of the present invention is to provide a PDP driving circuit and a plasma display apparatus each of which controls a discharge current at the time of sustain discharge by carrying out a switching operation during a power source clamping while changing a turn-on time, so as to display an image whose brightness is suppressed without deteriorating the gray scale. A PDP driving circuit (701) for driving a PDP (10) is constructed by connecting in parallel at least two switching elements (S51, S52) whose turn-on times are different from each other such that the switching elements (S51, S52) can be controlled independently as switches for applying a predetermined potential to scan electrodes and sustain electrodes.
摘要翻译：本发明的目的是提供一种PDP驱动电路和等离子体显示装置，每个PDP驱动电路和等离子体显示装置通过在电源钳位期间执行切换操作来控制维持放电时的放电电流，同时改变导通时间，以便显示其亮度被抑制而不恶化灰度的图像。用于驱动PDP（10）的PDP驱动电路（701）通过并联连接至少两个导通时间彼此不同的开关元件（S51，S52），使得开关元件（S51，S52）可以独立地控制作为用于施加预定电位以扫描电极和维持电极的开关。

58. 发明授权

US07288868B2 Motor generator 有权
标题翻译：电机发电机
公开(公告)号：US07288868B2
公开(公告)日：2007-10-30
申请号：US10926145
申请日：2004-08-26
申请人： Satoshi Tamaki , Yasuhiro Kondo , Toshikazu Nagaki , Hideki Nakata
发明人： Satoshi Tamaki , Yasuhiro Kondo , Toshikazu Nagaki , Hideki Nakata
IPC分类号： H02K1/06
CPC分类号： H02K21/16 , B60L11/14 , B60L2220/14 , B60L2220/16 , B60L2220/50 , H02K21/046 , Y02E10/72 , Y02T10/641 , Y02T10/70 , Y02T10/7077
摘要： A motor generator is provided with a stator having a winding around each of a plurality of stator teeth, and a rotor having a plurality of permanent magnets by the number larger than that of the stator teeth, arranged in the circumferential direction at equal intervals. The stator teeth are formed of a first stator teeth section including a plurality of stator teeth groups I, II, and III each including the adjacent stator teeth around which a winding to which the same phase voltage is applied is wound and in which winding directions of the stator teeth are opposite to each other, and a second stator teeth section including a stator teeth having a winding wound therearound and being placed among stator teeth groups of different phases such that electric power is independently input and output with respect to the first and second winding sections. This makes it possible to reduce the space and the cost while inputting/outputting the electric power through different channels and allowing arbitrary design of the electric power distribution.
摘要翻译：电动发电机具有定子，该定子具有围绕多个定子齿中的每一个的绕组，以及具有多个定子齿的数量的多个永磁体的转子，其间隔等间隔地沿圆周方向布置。定子齿由具有多个定子齿组I，II和III的第一定子齿部分形成，每个定子齿组I，II和III各自包括相邻的定子齿，围绕其缠绕施加相同相电压的绕组，并且其中缠绕方向所述定子齿彼此相对，并且所述第二定子齿部分包括定子齿，所述定子齿具有缠绕在其周围的绕组并且被布置在不同相的定子齿组之间，使得电功率相对于所述第一和第二相独立地输入和输出绕组部分。这使得可以通过不同的通道输入/输出电力来减小空间和成本，并允许任意设计电力分配。

59. 发明授权

US07158469B2 Optical head with light-receiving device 有权
标题翻译：带光接收装置的光头
公开(公告)号：US07158469B2
公开(公告)日：2007-01-02
申请号：US10502662
申请日：2003-05-06
申请人： Hideki Aikoh , Tohru Nakamura , Hideki Nakata
发明人： Hideki Aikoh , Tohru Nakamura , Hideki Nakata
IPC分类号： G11B7/00
CPC分类号： G11B7/22 , G11B7/123 , G11B7/13 , H01L2224/48091 , H01L2224/48247 , H01L2924/00014
摘要： The present invention realizes a compact and thin light-receiving device in a simple configuration, and provides a compact optical head on which this light-receiving device is mounted. The light-receiving device for receiving light reflected from an information recording medium includes a light-receiving chip having a plurality of electrodes and a flexible wiring board on which the light-receiving chip is mounted and fixed. The plurality of electrodes are connected electrically to the flexible wiring board by attaching directly or via a metal wire.
摘要翻译：本发明以简单的结构实现了一种紧凑且薄型的光接收装置，并且提供了一种紧凑的光头，该光接收装置安装在该光头上。用于接收从信息记录介质反射的光的光接收装置包括具有多个电极的光接收芯片和安装并固定光接收芯片的柔性布线板。多个电极通过直接或经由金属线附接而与柔性布线板电连接。

60. 发明授权

US07071641B2 Motor control apparatus, and washing machine and drying machine using the same 失效
标题翻译：电机控制装置，洗衣机和烘干机使用相同
公开(公告)号：US07071641B2
公开(公告)日：2006-07-04
申请号：US10896009
申请日：2004-07-22
申请人： Yasuhiro Arai , Hideki Nakata
发明人： Yasuhiro Arai , Hideki Nakata
IPC分类号： H02P6/18
CPC分类号： H02P25/024
摘要： A motor control apparatus includes an inverter circuit for supplying driving power to a motor, a motor current detector for detecting current flowing through the motor, an inverter controller for controlling the inverter circuit based on the output of the detector. The inverter controller has a setting unit for setting various command values to control motor driving status, and a processing unit for controlling the inverter circuit based on the setting on the setting unit. The setting unit sets command value so that a load angle which is an angle between rotor axis and motor applied voltage is operated on the smaller side of the angle that provides the maximum output torque in the load angle-output torque characteristics.
摘要翻译：电动机控制装置包括用于向电动机提供驱动电力的逆变器电路，用于检测流过电动机的电流的电动机电流检测器，用于基于检测器的输出来控制逆变器电路的逆变器控制器。逆变器控制器具有用于设定各种指令值以控制电动机驱动状态的设定单元，以及基于设定单元上的设定来控制逆变器电路的处理单元。设定单元设定指令值，使得在转矩轴和电动机施加电压之间的角度的负载角度在提供负载角输出转矩特性中的最大输出转矩的角度的较小侧上被操作。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式