专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US6043573A Linear actuator with burn-out-proof coil 失效
标题翻译：带防烧伤线圈的线性执行器
公开(公告)号：US6043573A
公开(公告)日：2000-03-28
申请号：US191089
申请日：1998-11-12
申请人： Edward A. Neff , Toan Vu , Chia-Tung Chen , Mathieu Allard
发明人： Edward A. Neff , Toan Vu , Chia-Tung Chen , Mathieu Allard
IPC分类号： H02K33/18 , H02K41/035 , H02K41/00
CPC分类号： H02K41/035
摘要： A method for manufacturing a linear voice coil actuator, capable of continuously generating a one hundred kilogram force with less than two amperes of current, requires using a coil for generating an electrical field and an unsaturated permanent magnet circuit for generating a magnetic field. In the method of manufacture, a flat surface of the electrical coil is positioned parallel to a flat surface of the magnet to establish a gap therebetween. Before operating the actuator, when no current is running through the coil, a distance of approximately 0.75 mm is established across the gap. Subsequently, during operation of the actuator, when a current of less than approximately two amperes is driven through the coil, the electrical field generated by the coil interacts with the magnetic field of the magnet to generate as much as a 100 kg force on the coil.
摘要翻译：用于制造能够以小于2安培电流连续产生一百公斤力的线性音圈致动器的方法需要使用用于产生电场的线圈和用于产生磁场的不饱和永磁体电路。在制造方法中，电线圈的平坦表面平行于磁体的平坦表面定位，以在它们之间形成间隙。在操作执行机构之前，当没有电流通过线圈时，跨越间隙建立大约0.75mm的距离。随后，在致动器的操作期间，当小于约两安培的电流被驱动通过线圈时，由线圈产生的电场与磁体的磁场相互作用，以在线圈上产生多达100kg的力。

2. 发明授权

US6076875A Gripper for linear voice coil actuator 有权
标题翻译：线性音圈执行机构夹爪
公开(公告)号：US6076875A
公开(公告)日：2000-06-20
申请号：US397987
申请日：1999-09-16
申请人： Edward A. Neff , Chia-Tung Chen , Hans Portegies , Toan Vu , Tomas T. Simunovic , Ninh Nguyen
发明人： Edward A. Neff , Chia-Tung Chen , Hans Portegies , Toan Vu , Tomas T. Simunovic , Ninh Nguyen
IPC分类号： H05K13/04 , B23P19/00 , B25J9/02 , B25J13/08 , B25J15/02 , B25J15/08 , H02K33/18 , B25J19/02
CPC分类号： B25J15/0253 , B25J13/085 , B25J15/08 , B25J9/023 , Y10S294/907
摘要： The, present invention is a gripper for use in combination with a machine for repositioning a component. Structurally, the present invention includes a housing formed with a chamber. A fixed-pole housing magnet is positioned inside of the chamber. A pair of grips are slidingly mounted for movement relative to the housing. Each grip is partially contained in the chamber and partially projects from the housing. An electromagnetic coil is attached to each grip. Functionally, the gripper is positioned with an assembly component between the grips. A separate electric current is then passed through each of the electromagnetic coils mounted on each of the respective grips. The electric current causes each electromagnetic coil to generate a magnetic field which interacts with the housing magnet. The interaction between the magnetic fields generated by the electromagnetic coils and the housing magnet creates a force on each grip, causing each grip to move translationally to hold, or squeeze, the component. The machine may then be utilized to reposition the gripper and the component.
摘要翻译：本发明是一种用于与机器组合使用的夹具，用于重新定位部件。在结构上，本发明包括形成有腔室的壳体。固定磁极壳体磁体位于腔室内部。一对夹具滑动地安装成相对于壳体移动。每个把手部分地包含在腔室中并且部分地从壳体突出。电磁线圈连接到每个手柄。在功能上，夹具定位成在夹具之间具有组件部件。然后，单独的电流通过安装在每个相应把手上的每个电磁线圈。电流使得每个电磁线圈产生与壳体磁体相互作用的磁场。由电磁线圈和壳体磁铁产生的磁场之间的相互作用在每个手柄上产生一个力，导致每个把手平移移动以保持或挤压该部件。然后可以利用机器来重新定位夹具和部件。

3. 发明授权

US6091167A Double coil actuator 失效
标题翻译：双线圈执行器
公开(公告)号：US6091167A
公开(公告)日：2000-07-18
申请号：US880271
申请日：1997-06-23
申请人： Toan Vu , Chia-Tung Chen , Edward A. Neff , David Huang
发明人： Toan Vu , Chia-Tung Chen , Edward A. Neff , David Huang
IPC分类号： H02K33/18 , H01F7/06 , H02K41/00
CPC分类号： H01F7/066 , Y10T29/49133
摘要： An electric voice coil actuator includes two coils slidingly mounted on a ferromagnetic housing. The coils, which are connected to each other in most applications, are mounted co-axially for linear reciprocal movement in respective magnetic fields. The north poles of a first pair of magnets are affixed to the housing to create the magnetic fields in which the first coil moves. The south poles of a second pair of magnets are affixed to the housing to create the magnetic fields in which the second coil moves. Alternately, the coils can move in the same magnetic field. Opposing poles of the pairs of magnets are affixed to the housing to prevent magnetic saturation of the housing. The coils are electrically connected to an electric current source to produce magnetic fields that interact with the magnetic fields of the magnets to cause movement of the coils. The electric current source may be electrically connected in parallel to each coil, to cause substantially identical movement of the coils. The coordinated movement of the two coils produces more motive force than one coil. Alternatively, the coils may be electrically connected to separate electric current sources. Employing separate current sources permits using the second coil to oppose the movement of the first coil, to brake the motion of the coils for more accurate positioning of the coils.
摘要翻译：电音圈致动器包括滑动地安装在铁磁壳体上的两个线圈。在大多数应用中彼此连接的线圈同轴地安装，用于在相应的磁场中进行线性的往复运动。第一对磁体的北极固定在壳体上，以产生第一线圈移动的磁场。第二对磁体的南极固定在壳体上，以产生第二线圈移动的磁场。或者，线圈可以在相同的磁场中移动。这对磁铁的相对极固定到壳体上以防止壳体的磁饱和。线圈电连接到电流源以产生与磁体的磁场相互作用以引起线圈移动的磁场。电流源可以与每个线圈并联电连接，以使线圈基本上相同的移动。两个线圈的协调运动产生比一个线圈更多的动力。或者，线圈可以电连接到单独的电流源。使用单独的电流源允许使用第二线圈来抵抗第一线圈的移动，以制动线圈的运动以更准确地定位线圈。

4. 发明授权

US5945747A Apparatus for moving a tool 失效
标题翻译：用于移动工具的装置
公开(公告)号：US5945747A
公开(公告)日：1999-08-31
申请号：US807004
申请日：1997-02-26
申请人： Edward A. Neff , Hans Portegies , Chia-Tung Chen , Toan Vu
发明人： Edward A. Neff , Hans Portegies , Chia-Tung Chen , Toan Vu
IPC分类号： B23Q1/00 , B23Q1/62 , B23Q1/74 , B23Q5/28 , H02K41/035 , H02K41/00 , G03F9/00
CPC分类号： B23Q5/28 , B23Q1/626 , H02K41/035 , H02K41/0356 , H02K2201/18 , Y10T29/49133 , Y10T74/20207
摘要： A thin film field effect transistor includes: a) a thin film channel region; b) a pair of opposing electrically conductive first and second source/drain regions adjacent the thin film channel region; c) a gate insulator and a gate positioned adjacent the thin film channel region for electrically energizing the channel region to switch on the thin film field effect transistor; d) the first source/drain region having a first thickness, the second source/drain region having a second thickness, the channel region having a third thickness; at least one of the first and second thicknesses being greater than the third thickness. Methods are disclosed for making thin field effect transistors.
摘要翻译：薄膜场效应晶体管包括：a）薄膜沟道区; b）与薄膜通道区相邻的一对相对的导电的第一和第二源/漏区; c）栅极绝缘体和位于薄膜通道区域附近的栅极，用于对沟道区域进行电激励以导通薄膜场效应晶体管; d）具有第一厚度的第一源极/漏极区域，第二源极/漏极区域具有第二厚度，沟道区域具有第三厚度; 第一和第二厚度中的至少一个大于第三厚度。公开了制造薄场效应晶体管的方法。

5. 发明授权

US09780634B2 Low cost multi-coil linear actuator configured to accommodate a variable number of coils 有权
公开(公告)号：US09780634B2
公开(公告)日：2017-10-03
申请号：US13244156
申请日：2011-09-23
申请人： Edward A. Neff , David Huang , Toan Vu
发明人： Edward A. Neff , David Huang , Toan Vu
IPC分类号： H02K33/18 , H02K41/02 , H02K41/03 , H01F5/00 , H01F7/06 , H02K16/00
CPC分类号： H02K41/031 , H01F5/00 , H01F7/066 , H02K16/00 , H02K2213/12 , Y10T29/4902 , Y10T29/49071
摘要： Disclosed herein are methods and systems for low cost linear actuators that can deliver strokes and forces at different values. The embodiments presented herein have parts and components that may be usable for both multi-coil and single-coil actuator designs. According to one embodiment, a magnet housing may removably or permanently coupled to a coil assembly having any number of coils. According to a further embodiment, an actuator housing may be coupled to a magnet housing having any number of magnets or coils.

6. 发明授权

US06518682B2 System monitor for a linear/rotary actuator 有权
公开(公告)号：US06518682B2
公开(公告)日：2003-02-11
申请号：US09730377
申请日：2000-12-04
申请人： Randy Weaver , David Huang , Toan Vu , Michael A. Ferris , Edward A. Neff
发明人： Randy Weaver , David Huang , Toan Vu , Michael A. Ferris , Edward A. Neff
IPC分类号： H02K4100
CPC分类号： G05B19/425 , G05B2219/36401 , G05B2219/41337 , G05B2219/41355 , H02P25/034
摘要： A system for programming and controlling the movement of a probe of a voice coil actuator along a path includes a control module that is mounted on a voice coil actuator. Specifically, the control module is connected to a clock and to an encoder to selectively establish a plurality of sequential positions for the probe. Each position in this sequence is defined by a location on the path (translation and rotation), and a time at the location. More specifically, the control module includes a key pad for inputting data to identify each position and also, there is a display for providing a visual presentation of the data. In operation the plurality of sequential positions specify a work cycle for the probe and the voice coil actuator uses the input data to perform a series of work cycles.

7. 发明申请

US20090058581A1 COMPACT LINEAR ACTUATOR AND METHOD OF MAKING SAME 审中-公开
标题翻译：紧凑型线性致动器及其制造方法
公开(公告)号：US20090058581A1
公开(公告)日：2009-03-05
申请号：US12184918
申请日：2008-08-01
申请人： Edward A. NEFF , Toan Vu , Karl Stocks , Naoyuki Okada , Andrew Gladoch
发明人： Edward A. NEFF , Toan Vu , Karl Stocks , Naoyuki Okada , Andrew Gladoch
IPC分类号： H01F7/06 , H02K7/06
CPC分类号： H01F7/066 , H01F5/02
摘要： This invention describes a compact linear moving coil actuator that incorporates a piston bobbin coil assembly that provides a shaft with linear reciprocal movement. Optionally, a rotary motor can be coupled to the shaft to provide rotary reciprocal movement. The piston and bobbin sections of the piston bobbin coil assembly may be integrally formed as a single unitary piece and easily changed in size and/or configuration during manufacture to enable easier and more cost-effective assembly of various actuator sizes and configurations. Additionally, the compact size of the actuator requires less work space and also allows multiple actuators to be positioned next to each for various applications.
摘要翻译：本发明描述了紧凑型线性运动线圈致动器，其包括提供轴线性往复运动的活塞筒管组件。可选地，旋转马达可以联接到轴以提供旋转往复运动。活塞筒管组件的活塞和筒管部分可以整体地形成为单个整体件，并且在制造过程中容易地改变尺寸和/或构造，以使各种致动器尺寸和构造更容易和更经济地组装。此外，致动器的紧凑尺寸需要更少的工作空间，并且还允许多个致动器相邻设置用于各种应用。

8. 发明授权

US08207869B1 Position estimation for navigation devices 有权
标题翻译：导航装置的位置估计
公开(公告)号：US08207869B1
公开(公告)日：2012-06-26
申请号：US12971265
申请日：2010-12-17
申请人： Tom Judd , Bruce Graham , Toan Vu
发明人： Tom Judd , Bruce Graham , Toan Vu
IPC分类号： G08G1/123
CPC分类号： G01C21/165 , G01C21/206
摘要： A method of providing position estimation with a navigation device comprises periodically recording magnetic field strength of an area substantially surrounding a navigation device as a user of the navigation device traverses a select pathway. The method combines the recorded magnetic field strength with measurements from at least a dead reckoning portion of the navigation device to provide position estimates along the select pathway. The method further corrects each of the position estimates from a starting position on the select pathway, where each of the corrected position estimates have an error value below one or more previous position estimates and any intervening positions between each of the one or more previous position estimates and the starting position, with the error value corresponding to an error threshold based on the previous position estimates.
摘要翻译：使用导航装置提供位置估计的方法包括：当导航装置的用户穿过选择路径时，周期性地记录基本围绕导航装置的区域的磁场强度。该方法将记录的磁场强度与来自导航装置的至少航位推算部分的测量结合起来，以沿着选择路径提供位置估计。该方法进一步从选择路径的起始位置纠正每个位置估计，其中每个经过校正的位置估计具有低于一个或多个先前位置估计的误差值，以及该一个或多个先前位置估计值中的每一个之间的任何中间位置和起始位置，其中误差值对应于基于先前位置估计的误差阈值。

9. 发明授权

US5668505A Ring oscillator having two rings whose outputs are combined 失效
标题翻译：环形振荡器具有两个输出组合的环
公开(公告)号：US5668505A
公开(公告)日：1997-09-16
申请号：US614592
申请日：1996-03-13
申请人： Hoai X. Vu , Toan Vu
发明人： Hoai X. Vu , Toan Vu
IPC分类号： H03K3/354 , H03G3/30 , H03K3/0231 , H03K3/03 , H04B1/40 , H04B1/44 , H03B5/02
CPC分类号： H03G3/3089 , H03K3/0231 , H03K3/03 , H03K3/0322 , H04B1/44
摘要： An oscillator is provided having a plurality of cascade coupled inverters Each one of the inverters is a differential amplifier having a p-input and an n-input. The output of each one of the amplifiers is connected to: the n-input of the next succeeding amplifier to provide a closed loop, or ring oscillator; and, the p-input of an amplifier positioned an even number of amplifier stages forward of such next succeeding amplifier. In a preferred embodiment, each amplifier in the ring includes an n channel transistor (nMOS transistor) connected in a totem pole arrangement, to a p channel transistor (pMOS transistor). The gate of the nMOS transistor provides the n-input and gate of the pMOS transistor provides the p-input. The source and drain paths of the pMOS and nMOS transistors are connected together to provide an output for the amplifier. With such arrangement, because the gate of the more slowly responding pMOS transistor is driven before the gate of the nMOS transistor the oscillator is adapted to operate at a higher frequency of oscillation.
摘要翻译：提供具有多个级联耦合的反相器的振荡器。每个反相器是具有p输入和n输入的差分放大器。每个放大器的输出连接到下一个后续放大器的n输入端，以提供闭环或环形振荡器; 并且放大器的p输入端定位在这样的后续放大器的前面的偶数个放大器级。在优选实施例中，环中的每个放大器包括连接到图腾柱布置的n沟道晶体管（nMOS晶体管）到p沟道晶体管（pMOS晶体管）。 nMOS晶体管的栅极提供n输入，pMOS晶体管的栅极提供p输入。 pMOS和nMOS晶体管的源极和漏极连接在一起，为放大器提供输出。通过这种布置，由于在nMOS晶体管的栅极之前驱动更缓慢响应的pMOS晶体管的栅极，所以振荡器适于在较高的振荡频率下工作。

10. 发明授权

US07928724B2 Magnetic odometer with direction indicator systems and method 失效
标题翻译：磁性里程表带方向指示器系统和方法
公开(公告)号：US07928724B2
公开(公告)日：2011-04-19
申请号：US12127691
申请日：2008-05-27
申请人： Toan Vu , Tom Judd , Ron Fang , Bruce Graham
发明人： Toan Vu , Tom Judd , Ron Fang , Bruce Graham
IPC分类号： G01B7/14 , G01P13/00 , G01P3/42
CPC分类号： G01B7/30 , G01C22/00
摘要： Systems and methods for determining a directional movement of an object such as a wheeled vehicle. The system includes a magnet having a north pole and a south pole mounted to the object, a single magnetic sensor positioned such that the sensor can individually detect each magnetic pole as the object moves, the sensor configured to produce a first characteristic signal when a north pole is detected and a second characteristic signal when a south pole is detected, and a processing device in signal communication with the sensor, the processing device configured to determine a directional movement of the object based on a configuration of a signal doublet that includes the first and second characteristic signals. The methods include sensing the north and south poles as they pass the magnetic sensor and determining a direction based on an order in which the north and south poles are sensed.
摘要翻译：用于确定诸如轮式车辆的物体的定向运动的系统和方法。该系统包括具有安装在物体上的北极和南极的磁体，一个单一的磁传感器，其定位成使得当物体移动时传感器能够单独地检测每个磁极，该传感器被配置为当北极产生第一特征信号时检测到极点，并且当检测到南极时，检测到第二特征信号，以及处理装置，其与传感器进行信号通信，所述处理装置被配置为基于包括第一信号的信号双倍的配置来确定对象的方向移动和第二特征信号。这些方法包括在通过磁传感器时感测南极和南极，并根据感测到北极和南极的顺序确定方向。

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