公开(公告)号：US09771944B2

公开(公告)日：2017-09-26

申请号：US14382239

申请日：2012-09-13

申请人： Ryuta Sasaki ,  Yasuyuki Yokouchi ,  Yasushi Kato ,  Toru Tazawa

发明人： Ryuta Sasaki ,  Yasuyuki Yokouchi ,  Yasushi Kato ,  Toru Tazawa

IPC分类号： F04D27/00 ,  F04D25/08 ,  H02P6/06 ,  F24F11/00 ,  F04D25/06 ,  F24F7/007 ,  H02P23/14 ,  F24F11/04

CPC分类号： F04D27/004 ,  F04D25/06 ,  F04D25/08 ,  F04D27/00 ,  F05D2200/12 ,  F05D2200/14 ,  F05D2270/02 ,  F05D2270/3061 ,  F24F7/007 ,  F24F11/0001 ,  F24F11/30 ,  F24F11/74 ,  F24F11/77 ,  F24F2110/00 ,  H02P6/06 ,  H02P23/14 ,  Y02B30/746

摘要： A motor controller of the present invention comprises units which obtain information indicative of a motor speed (ω) and information indicative of motor torque (T), an air flow calculation section which calculates an air flow (Q) of a fan based on the motor speed (ω) and the motor torque (T); and a speed command generation section which generates a speed command (ω*) of a motor such that the air flow (Q) coincides with the predetermined air flow command (Q*).

公开(公告)号：US20150064023A1

公开(公告)日：2015-03-05

申请号：US14382239

申请日：2012-09-13

申请人： Ryuta Sasaki ,  Yasuyuki Yokouchi ,  Yasushi Kato ,  Toru Tazawa

发明人： Ryuta Sasaki ,  Yasuyuki Yokouchi ,  Yasushi Kato ,  Toru Tazawa

IPC分类号： F04D27/00 ,  F24F11/00 ,  F04D25/06 ,  F24F7/007

CPC分类号： F04D27/004 ,  F04D25/06 ,  F04D25/08 ,  F04D27/00 ,  F05D2200/12 ,  F05D2200/14 ,  F05D2270/02 ,  F05D2270/3061 ,  F24F7/007 ,  F24F11/0001 ,  F24F11/30 ,  F24F11/74 ,  F24F11/77 ,  F24F2110/00 ,  H02P6/06 ,  H02P23/14 ,  Y02B30/746

摘要： A motor controller of the present invention comprises units which obtain information indicative of a motor speed (ω) and information indicative of motor torque (T), an air flow calculation section which calculates an air flow (Q) of a fan based on the motor speed (ω) and the motor torque (T); and a speed command generation section which generates a speed command (ω*) of a motor such that the air flow (Q) coincides with the predetermined air flow command (Q*).

摘要翻译： 本发明的电动机控制器包括获得表示电动机速度（ω）和表示电动机转矩（T）的信息的信息的单元，计算基于电动机的风扇的气流（Q）的气流计算部 速度（ω）和电机转矩（T）; 以及速度指令生成部，其生成电动机的速度指令（ω*），使得气流（Q）与预定的气流指令（Q *）一致。

公开(公告)号：US20130113400A1

公开(公告)日：2013-05-09

申请号：US13808874

申请日：2011-06-30

申请人： Kenichi Kishimoto ,  Mineaki Isoda ,  Daisuke Sato ,  Ryuta Sasaki

发明人： Kenichi Kishimoto ,  Mineaki Isoda ,  Daisuke Sato ,  Ryuta Sasaki

IPC分类号： H02P6/14

CPC分类号： H02P6/16 ,  H02P6/182 ,  H02P6/188

摘要： A phase-shift detection circuit detects a phase shift in motor driving, using pulse-shaped position detection signal Rd and measurement signal Ms. The position detection signal is based on sensor signal Hs from a position sensor disposed in a motor. The measurement signal is based on the induced voltage from windings. The phase-shift detection circuit includes a level difference calculator and a phase-shift calculator. The level difference calculator calculates a level difference between the level of measurement signal Ms at a rising timing of position detection signal Rd and the level of measurement signal Ms at a falling timing thereof. The phase-shift calculator calculates the amount of phase shifts based on the level difference.

摘要翻译： 相移检测电路使用脉冲状位置检测信号Rd和测量信号Ms来检测电动机驱动中的相移。位置检测信号是基于设置在电动机中的位置传感器的传感器信号Hs。 测量信号基于来自绕组的感应电压。 相移检测电路包括电平差计算器和相移计算器。 电平差计算器计算位置检测信号Rd的上升时刻的测量信号Ms的电平与其下降时刻的测量信号Ms的电平之间的电平差。 相移计算器基于电平差来计算相移量。

公开(公告)号：US06690581B2

公开(公告)日：2004-02-10

申请号：US10093061

申请日：2002-03-08

申请人： Ryuta Sasaki

发明人： Ryuta Sasaki

IPC分类号： H05K100

CPC分类号： H05K1/144 ,  G03B17/02 ,  H05K3/0058

摘要： The connection structure of flexible boards permits efficient positioning and connecting of a plurality of flexible boards arranged one over the other in a camera by providing a pair of pin elements in a protruding condition in a base portion and forming on one of the pin elements a groove to be engaged with flexible boards. A lens device includes a base metal sheet of metal and pin elements of plastic provided in a protruding condition in the base metal sheet. The pin element has a groove formed on an outer periphery surface of the opposite side to the pin element. A main flex or a shutter flex has holes formed therein, into which the pin elements are to be inserted. A spacing between the holes is formed a little smaller than a spacing between the pin elements.

摘要翻译： 柔性板的连接结构允许通过在基座部分中以突出状态提供一对销元件并在一个引脚元件​​上形成一个沟槽，从而有效地定位和连接多个在相机中彼此布置的柔性板， 与柔性板接合。 透镜装置包括在基底金属片中以突出状态设置的金属基底金属片和塑料销元件。 针元件具有形成在与销元件相对的一侧的外周面上的槽。 主弯曲或快门柔性具有形成在其中的孔，销元件将被插入其中。 孔之间的间隔形成为比销元件之间的间隔稍小。

公开(公告)号：US06597524B2

公开(公告)日：2003-07-22

申请号：US10092556

申请日：2002-03-08

申请人： Ryuta Sasaki

发明人： Ryuta Sasaki

IPC分类号： G02B702

CPC分类号： G02B7/08

摘要： The lens device performs focusing adjustment by moving a lens holding frame for a focusing lens in the direction along an optical axis by a lead screw device, in which a nut member is engaged with an engaging portion formed on a nut mounting portion of the lens holding frame and the nut member is positioned against the nut mounting portion, thus improving forwarding precision of the lead screw device to perform focusing operation with high precision. The nut member is engaged with a protruding portion formed on the nut mounting portion of a third lens frame in a third lens frame for a third lens, which is a focusing lens, and the nut member is positioned against the nut mounting portion, thus preventing inclination, misalignment or deformation of the nut member against the nut mounting portion. Thereby the forwarding precision of the lead screw device is improved; accordingly, the focusing operation can be performed with high precision.

公开(公告)号：US09054623B2

公开(公告)日：2015-06-09

申请号：US14236129

申请日：2012-07-25

申请人： Ryuta Sasaki ,  Kenichi Kishimoto

发明人： Ryuta Sasaki ,  Kenichi Kishimoto

IPC分类号： H02P21/00 ,  H02P21/14

CPC分类号： H02P21/0035 ,  H02P21/0089 ,  H02P21/14 ,  H02P21/22 ,  H02P2207/05

摘要： A motor control device according to the present invention includes a motor driving unit for driving a motor, a current vector controller, a magnetic-flux weakening current command generator, and one of a target command limiter and a q-axis current command limiter. The current vector controller controls a current of the motor by separating the current into a d-axis current and a q-axis current orthogonal to each other, in accordance with a target command value from the outside. The magnetic-flux weakening current command generator generates a d-axis current command to control the amount of the d-axis current, based on one of differences, i.e. a difference between a first predetermined reference value and the absolute value of a voltage command from the current vector controller to the motor driving unit and a difference between a second predetermined reference value and a q-axis component of the voltage command. The target command limiter sets a limit value of the target command value from the outside, based on an excessive amount of the d-axis current command over a negative upper limit.

摘要翻译： 根据本发明的电动机控制装置包括用于驱动电动机的电动机驱动单元，电流矢量控制器，磁通弱化电流指令发生器以及目标指令限制器和q轴电流指令限制器之一。 电流矢量控制器根据来自外部的目标指令值，将电流分离为彼此正交的d轴电流和q轴电流来控制电动机的电流。 磁通弱化电流指令发生器基于差异之一产生d轴电流指令，以控制d轴电流的量，即，第一预定基准值与电压指令的绝对值之间的差 电动机驱动单元的电流矢量控制器和第二预定基准值与电压指令的q轴分量之间的差。 目标指令限制器基于在负上限的d轴电流指令的过量设定来自外部的目标指令值的限制值。

公开(公告)号：US08917041B2

公开(公告)日：2014-12-23

申请号：US13808874

申请日：2011-06-30

申请人： Kenichi Kishimoto ,  Mineaki Isoda ,  Daisuke Sato ,  Ryuta Sasaki

发明人： Kenichi Kishimoto ,  Mineaki Isoda ,  Daisuke Sato ,  Ryuta Sasaki

IPC分类号： H02P23/12

CPC分类号： H02P6/16 ,  H02P6/182 ,  H02P6/188

摘要： A phase-shift detection circuit detects a phase shift in motor driving, using pulse-shaped position detection signal Rd and measurement signal Ms. The position detection signal is based on sensor signal Hs from a position sensor disposed in a motor. The measurement signal is based on the induced voltage from windings. The phase-shift detection circuit includes a level difference calculator and a phase-shift calculator. The level difference calculator calculates a level difference between the level of measurement signal Ms at a rising timing of position detection signal Rd and the level of measurement signal Ms at a falling timing thereof. The phase-shift calculator calculates the amount of phase shifts based on the level difference.

摘要翻译： 相移检测电路使用脉冲状位置检测信号Rd和测量信号Ms来检测电动机驱动中的相移。位置检测信号是基于设置在电动机中的位置传感器的传感器信号Hs。 测量信号基于来自绕组的感应电压。 相移检测电路包括电平差计算器和相移计算器。 电平差计算器计算位置检测信号Rd的上升时刻的测量信号Ms的电平与其下降时刻的测量信号Ms的电平之间的电平差。 相移计算器基于电平差来计算相移量。

公开(公告)号：US20140152207A1

公开(公告)日：2014-06-05

申请号：US14236129

申请日：2012-07-25

申请人： Ryuta Sasaki ,  Kenichi Kishimoto

发明人： Ryuta Sasaki ,  Kenichi Kishimoto

IPC分类号： H02P21/00

CPC分类号： H02P21/0035 ,  H02P21/0089 ,  H02P21/14 ,  H02P21/22 ,  H02P2207/05

摘要： A motor control device according to the present invention includes a motor driving unit for driving a motor, a current vector controller, a magnetic-flux weakening current command generator, and one of a target command limiter and a q-axis current command limiter. The current vector controller controls a current of the motor by separating the current into a d-axis current and a q-axis current orthogonal to each other, in accordance with a target command value from the outside. The magnetic-flux weakening current command generator generates a d-axis current command to control the amount of the d-axis current, based on one of differences, i.e. a difference between a first predetermined reference value and the absolute value of a voltage command from the current vector controller to the motor driving unit and a difference between a second predetermined reference value and a q-axis component of the voltage command. The target command limiter sets a limit value of the target command value from the outside, based on an excessive amount of the d-axis current command over a negative upper limit.

摘要翻译： 根据本发明的电动机控制装置包括用于驱动电动机的电动机驱动单元，电流矢量控制器，磁通弱化电流指令发生器以及目标指令限制器和q轴电流指令限制器之一。 电流矢量控制器根据来自外部的目标指令值，将电流分离为彼此正交的d轴电流和q轴电流来控制电动机的电流。 磁通弱化电流指令发生器基于差异之一产生d轴电流指令，以控制d轴电流的量，即，第一预定基准值与电压指令的绝对值之间的差 电动机驱动单元的电流矢量控制器和第二预定基准值与电压指令的q轴分量之间的差。 目标指令限制器基于在负上限的d轴电流指令的过量设定来自外部的目标指令值的限制值。

公开(公告)号：US06637951B2

公开(公告)日：2003-10-28

申请号：US10086523

申请日：2002-03-04

申请人： Ryuta Sasaki

发明人： Ryuta Sasaki

IPC分类号： G03B502

CPC分类号： G03B17/04

摘要： The lens device is capable of preventing a guide member from being disengaged from a guide groove with a simple construction, in which a projecting thread portion is formed on a sidewall of the guide groove for guiding a lens barrel in a straight motion and a recessed thread portion to be engaged with the projecting thread portion is formed on a sidewall of the guide member that is guided by the guide groove. A straight guide groove along the optical axis is formed on an inner peripheral surface of a first lens barrel, and a straight guide projection that is guided by the straight guide groove is formed on a second lens barrel. On a sidewall of the straight guide groove, a projecting thread portion is formed and on a sidewall of the straight guide projection, a recessed thread portion to be engaged with the projecting thread portion is formed.

公开(公告)号：US06490099B2

公开(公告)日：2002-12-03

申请号：US09790521

申请日：2001-02-23

申请人： Ryuta Sasaki

发明人： Ryuta Sasaki

IPC分类号： G02B1514

CPC分类号： G02B7/102

摘要： Guide grooves are formed on the inner periphery of a first lens barrel along an optical axis, and guide couplers are coupled with the guide grooves to guide the first lens barrel along the optical axis. Inclined parts are formed on both sides of the guide grooves, and inclined parts are formed on both sides of the guide couplers. Thus, the guide couplers do not easily come off from the guide grooves even if a pressure is applied to them.

摘要翻译： 引导槽沿着光轴形成在第一透镜镜筒的内周上，并且引导耦合器与引导槽耦合以沿着光轴引导第一透镜镜筒。 倾斜部分形成在引导槽的两侧，并且倾斜部分形成在引导耦合器的两侧。 因此，即使对它们施加压力，引导联接器也不容易从引导槽脱落。