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1. 发明授权

US11812665B1 Hard piezoelectric ceramic composition for multilayer piezoelectric transformers 有权
公开(公告)号：US11812665B1
公开(公告)日：2023-11-07
申请号：US16402265
申请日：2019-05-03
申请人： QorTek, Inc.
发明人： Ahmet Erkan Gurdal , Sinan Dursun , Safakcan Tuncdemir , Clive Randall
IPC分类号： H01L41/107 , C04B35/499 , C04B35/622 , C04B35/64 , H10N30/40 , H10N30/053 , H10N30/50 , H10N30/87 , H10N30/853
CPC分类号： H10N30/40 , C04B35/499 , C04B35/62222 , C04B35/64 , H10N30/053 , H10N30/505 , H10N30/8554 , H10N30/871 , H10N30/872 , H10N30/877 , C04B2235/3203 , C04B2235/3234 , C04B2235/3255 , C04B2235/326 , C04B2235/3267 , C04B2235/3296 , C04B2235/442
摘要： A composition includes at least one Pb/Ni/Nb - Pb/Mg/W - Pb/Zr/Ti mixed oxide. A piezoelectric device may be made by providing at least two layers comprising the composition and coated with an outer electrode material; providing a plurality of layers comprising the composition and coated with an inner electrode material; combining or stacking a plurality of layers coated with inner electrode materials between two outer electrodes; and sintering or co-firing the inner electrode materials and outer electrode materials at a temperature at or below about 1000° C.

2. 发明授权

US07459834B2 Solid state gimbal system 有权
标题翻译：固态万向节系统
公开(公告)号：US07459834B2
公开(公告)日：2008-12-02
申请号：US11472673
申请日：2006-06-22
申请人： Gareth J. Knowles , Maureen Mulvihill , Kenji Uchino , Brian Shea
发明人： Gareth J. Knowles , Maureen Mulvihill , Kenji Uchino , Brian Shea
IPC分类号： H01L41/08
CPC分类号： H01L41/0993 , B33Y80/00 , H02N2/108
摘要： A non-mechanical gimbal system is presented. The gimbal system includes a gimbal housing, including hemispherical and annular caps, rotatable sphere, and at least two curvilinear actuators. The hemispherical cap is attached to the annular cap in a removable fashion so as to surround the rotatable sphere. The curvilinear actuators are disposed between the rotatable sphere and gimbal housing. Curvilinear actuators rotate the rotatable sphere, via shear induced motion, with respect to the interior surface of the gimbal housing. The present invention has immediate applicability within security devices, games, toys, weapons (including guidance systems and aiming), and communication systems.
摘要翻译：提出了非机械万向节系统。万向节系统包括一个万向架壳体，包括半球形和环形盖，可旋转球体和至少两个曲线致动器。半球形帽以可移动的方式附接到环形帽，以便围绕可旋转的球体。曲线致动器设置在可旋转球体和万向节壳体之间。曲线致动器通过剪切引起的运动相对于万向节壳体的内表面旋转可旋转的球体。本发明在安全装置，游戏，玩具，武器（包括指导系统和瞄准）以及通信系统中具有即时适用性。

3. 发明申请

US20080106170A1 SOLID STATE GIMBAL SYSTEM 有权
标题翻译：固态GIMBAL系统
公开(公告)号：US20080106170A1
公开(公告)日：2008-05-08
申请号：US11472673
申请日：2006-06-22
申请人： Gareth J. Knowles , Maureen Mulvihill , Kenji Uchino , Brian Shea
发明人： Gareth J. Knowles , Maureen Mulvihill , Kenji Uchino , Brian Shea
IPC分类号： H01L41/00
CPC分类号： H01L41/0993 , B33Y80/00 , H02N2/108
摘要： A non-mechanical gimbal system is presented. The gimbal system includes a gimbal housing, including hemispherical and annular caps, rotatable sphere, and at least two curvilinear actuators. The hemispherical cap is attached to the annular cap in a removable fashion so as to surround the rotatable sphere. The curvilinear actuators are disposed between the rotatable sphere and gimbal housing. Curvilinear actuators rotate the rotatable sphere, via shear induced motion, with respect to the interior surface of the gimbal housing. The present invention has immediate applicability within security devices, games, toys, weapons (including guidance systems and aiming), and communication systems.
摘要翻译：提出了非机械万向节系统。万向节系统包括一个万向架壳体，包括半球形和环形盖，可旋转球体和至少两个曲线致动器。半球形帽以可移动的方式附接到环形帽，以便围绕可旋转的球体。曲线致动器设置在可旋转球体和万向节壳体之间。曲线致动器通过剪切引起的运动相对于万向节壳体的内表面旋转可旋转的球体。本发明在安全装置，游戏，玩具，武器（包括指导系统和瞄准）以及通信系统中具有即时适用性。

4. 发明授权

US07170321B2 Gate drive circuit with negative offset 有权
标题翻译：栅偏置驱动电路
公开(公告)号：US07170321B2
公开(公告)日：2007-01-30
申请号：US11212259
申请日：2005-08-26
申请人： Ross W. Bird , William C. Knoll , John M. Staron
发明人： Ross W. Bird , William C. Knoll , John M. Staron
IPC分类号： H03B1/00
CPC分类号： H03K17/063 , H03K5/12 , H03K17/162 , H03K17/687 , H03K17/785
摘要： A gate drive circuit capable of providing both positive and negative drive from a DC power supply is presented. The circuit includes an isolator stage, a driver stage, an optional tuning stage, an offset stage, a shaping stage, and a switching stage, each electrically coupled in the order described. The isolator stage provides electrical isolation from signal level circuitry. The driver stage boosts the power within the signal from the isolator stage. The tuning stage slows rising and falling edges along the signal from driver. The offset stage shifts the unipolar gate drive signal from the tuning stage into the negative voltage range. The shaping stage modifies the signal from the offset stage so as to ensure squared transitions. The switching stage enables voltage control. The described circuit is applicable to electronics utilizing a variety of voltage controlled switching devices.
摘要翻译：提供了能够提供来自直流电源的正和负驱动的门驱动电路。该电路包括隔离器级，驱动级，可选的调谐级，偏移级，成形级和开关级，每个按照所描述的顺序电耦合。隔离器级提供与信号电平电路的电气隔离。驱动器级从隔离器级提升信号的功率。调谐阶段沿着驱动器的信号减慢上升沿和下降沿。偏移级将单极栅极驱动信号从调谐级移动到负电压范围。成形阶段修改来自偏移级的信号，以确保平方转换。开关级使能电压控制。所描述的电路可应用于利用各种电压控制开关器件的电子器件。

5. 发明申请

US20160043298A1 FREQUENCY TRACKING PIEZOELECTRIC TRANSFORMER POWER CONVERTER WITH SIMULTANEOUS TWO-PARAMETER CONTROL 有权
标题翻译：具有同步双参数控制的频率跟踪压电变压器功率转换器
公开(公告)号：US20160043298A1
公开(公告)日：2016-02-11
申请号：US14777385
申请日：2014-03-17
申请人： William M. BRADLEY , Ross W. BIRD , Jonathan ZOOK , Dennis L. ELDRED, JR. , Gareth J. KNOWLES
发明人： William M. Bradley , Ross W. Bird , Gareth J. Knowles , Jonathan M. Zook , Dennis L. Eldred, JR.
IPC分类号： H01L41/04 , H02M7/04
CPC分类号： H01L41/044 , H02M7/043
摘要： The present invention is directed to a piezoelectric transformer based power converter that exhibits efficient operating point tracking ability while providing output regulation by means of simultaneous two-parameter control of the converter power stage. A regulation control stage provides the power stage a regulation control signal indicative of the difference between the measured output parameter and a set-point reference, therefore continuously controlling the gain of the converter to result in a stabilized, regulated output. Additionally, a frequency control stage simultaneously provides the power stage with a frequency control signal correlative to the difference between the current and desired operating points of the piezoelectric transformer. The power stage then translates the frequency control signal into an adjustment to the operational frequency of the input signal to the piezoelectric transformer, as to continuously drive the operating point to the desired position.
摘要翻译：本发明涉及一种基于压电变压器的功率转换器，其具有高效的工作点跟踪能力，同时通过转换器功率级的同时双参数控制提供输出调节。调节控制级为功率级提供表示测量的输出参数和设定点参考之间的差的调节控制信号，因此连续地控制转换器的增益以产生稳定的调节输出。此外，频率控制级同时向功率级提供与压电变压器的当前工作点和期望工作点之间的差相关的频率控制信号。功率级然后将频率控制信号转换为对压电变压器的输入信号的工作频率的调节，以将工作点连续地驱动到期望的位置。

6. 发明申请

US20130070551A1 Percolation Tamper Protection Circuit for Electronic Devices 审中-公开
标题翻译：电子设备渗流防篡改电路
公开(公告)号：US20130070551A1
公开(公告)日：2013-03-21
申请号：US13621741
申请日：2012-09-17
申请人： QorTek, Inc.
发明人： Ross Bird , Greg Bower , Gareth J. Knowles , Jonathan Zook
IPC分类号： G11C5/14
CPC分类号： H03K19/00384
摘要： An integrated circuit employing a percolation tamper protection device includes a circuit housing with a die disposed in circuit housing. The die includes a volatile memory. A percolation tamper protection device that is connected to the volatile memory and also disposed in the circuit housing. The percolation tamper protection device includes a percolation gate which is biased in a conductive state. The percolation gate includes a first terminal that is connected to the volatile memory and a second terminal configured to be connected to a power supply. The percolation gate has a conductivity that varies proportional to pressure.
摘要翻译：采用渗滤篡改保护装置的集成电路包括具有设置在电路壳体中的管芯的电路外壳。芯片包括易失性存储器。渗透篡改保护装置，其连接到易失性存储器并且还设置在电路壳体中。渗滤篡改装置包括偏置在导电状态的渗滤门。渗滤门包括连接到易失性存储器的第一端子和被配置为连接到电源的第二端子。渗滤门具有与压力成比例的导电性。

7. 发明申请

US20090027788A1 Thin Nearly Wireless Adaptive Optical Device 有权
标题翻译：薄无线自适应光学设备
公开(公告)号：US20090027788A1
公开(公告)日：2009-01-29
申请号：US12193951
申请日：2008-08-19
申请人： Gareth J. Knowles , Eli Hughes
发明人： Gareth J. Knowles , Eli Hughes
IPC分类号： G02B7/185
CPC分类号： G02B7/1827 , G02B26/0825 , H01Q1/38 , H01Q1/40 , H01Q15/002
摘要： A thin nearly wireless adaptive optical device capable of dynamically modulating the shape of a mirror in real time to compensate for atmospheric distortions and/or variations along an optical material is provided. The device includes an optical layer, a substrate, at least one electronic circuit layer with nearly wireless architecture, an array of actuators, power electronic switches, a reactive force element, and a digital controller. Actuators are aligned so that each axis of expansion and contraction intersects both substrate and reactive force element. Electronics layer with nearly wireless architecture, power electronic switches, and digital controller are provided within a thin-film substrate. The size and weight of the adaptive optical device is solely dominated by the size of the actuator elements rather than by the power distribution system.
摘要翻译：提供能够实时动态地调制镜子形状以补偿沿着光学材料的大气变形和/或变化的薄的几乎无线自适应光学装置。该器件包括光学层，衬底，至少一个具有近无线结构的电子电路层，致动器阵列，功率电子开关，反作用力元件和数字控制器。致动器对准，使得每个轴的膨胀和收缩与基板和反作用力元件相交。具有近无线架构的电子层，功率电子开关和数字控制器设置在薄膜基板内。自适应光学装置的尺寸和重量仅由致动器元件的尺寸而不是由配电系统支配。

8. 发明授权

US07281808B2 Thin, nearly wireless adaptive optical device 有权
标题翻译：薄，近无线自适应光学设备
公开(公告)号：US07281808B2
公开(公告)日：2007-10-16
申请号：US10872974
申请日：2004-06-21
申请人： Gareth Knowles , Eli Hughes
发明人： Gareth Knowles , Eli Hughes
IPC分类号： G02B5/08
CPC分类号： G02B7/1827 , G02B26/0825 , H01Q1/38 , H01Q1/40 , H01Q15/002
摘要： A thin, nearly wireless adaptive optical device capable of dynamically modulating the shape of a mirror in real time to compensate for atmospheric distortions and/or variations along an optical material is provided. The device includes an optical layer, a substrate, at least one electronic circuit layer with nearly wireless architecture, an array of actuators, power electronic switches, a reactive force element, and a digital controller. Actuators are aligned so that each axis of expansion and contraction intersects both substrate and reactive force element. Electronics layer with nearly wireless architecture, power electronic switches, and digital controller are provided within a thin-film substrate. The size and weight of the adaptive optical device is solely dominated by the size of the actuator elements rather than by the power distribution system.
摘要翻译：提供了一种能够实时地动态地调制镜子形状以补偿沿着光学材料的大气变形和/或变化的薄的，几乎无线的自适应光学装置。该器件包括光学层，衬底，至少一个具有近无线结构的电子电路层，致动器阵列，功率电子开关，反作用力元件和数字控制器。致动器对准，使得每个轴的膨胀和收缩与基板和反作用力元件相交。具有近无线架构的电子层，功率电子开关和数字控制器设置在薄膜基板内。自适应光学装置的尺寸和重量仅由致动器元件的尺寸而不是由配电系统支配。

9. 发明授权

US06943660B2 Current control device 有权
标题翻译：电流控制装置
公开(公告)号：US06943660B2
公开(公告)日：2005-09-13
申请号：US10810521
申请日：2004-03-26
申请人： Bruce Bower , Gareth Knowles
发明人： Bruce Bower , Gareth Knowles
IPC分类号： H01C7/02 , H01C10/10 , H01C7/10
CPC分类号： H01C7/13 , H01C7/027 , H01C10/103 , H01C10/106 , H01C17/06586 , Y10T29/435 , Y10T29/4902 , Y10T29/49082 , Y10T29/49098 , Y10T29/49105 , Y10T29/49128 , Y10T29/49147
摘要： A current control device is described wherein a pressure conduction composite is compressed and decompressed to alter its conductivity and thereby current conduction through the device. The pressure conduction composite is composed of a nonconductive matrix, a conductive filler, and an additive. The invention consists of electrodes and pressure plates contacting the composite. Electrically activated actuators apply a force onto pressures plates. Actuators are composed of a piezoelectric, piezoceramic, electrostrictive, magnetostrictive, and shape memory alloy materials, capable of extending and/or contracting thereby altering pressure and consequently resistivity within the composite. Two or more current control devices are electrically coupled parallel to increase power handling.
摘要翻译：描述了一种电流控制装置，其中压力传导复合材料被压缩和减压以改变其导电性，从而改变通过该装置的电流传导。压力传导复合材料由非导电基体，导电填料和添加剂组成。本发明包括接触复合材料的电极和压板。电激活的致动器在压力板上施加力。致动器由压电，压电陶瓷，电致伸缩，磁致伸缩和形状记忆合金材料组成，能够延伸和/或收缩从而改变复合材料内的压力并因此改变电阻率。两个或多个电流控制装置并联电耦合以增加功率处理。

10. 发明授权

US10892540B2 High voltage antenna protection device 有权
公开(公告)号：US10892540B2
公开(公告)日：2021-01-12
申请号：US15860444
申请日：2018-01-02
申请人： QorTek, Inc.
发明人： Gregory Bower , Gareth J. Knowles , Edward Almasy , William M. Bradley , Matthew De Santis
IPC分类号： H01Q1/00 , H04B1/04 , H01Q1/50 , G05F1/571 , H02H7/20
摘要： A voltage interrupt device is provided transmits or conducts signals in the RF frequency range but stops all signal transmission when subject to a high energy, low frequency signal such as that generated when the antenna strikes a power line, for example, signals less than or equal to 200 MHz and greater than or equal to 600V.

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