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1. 发明授权

US06182509B2 Accelerometer without proof mass 有权
标题翻译：加速度计无质量
公开(公告)号：US06182509B2
公开(公告)日：2001-02-06
申请号：US09177439
申请日：1998-10-21
申请人： Albert M. Leung
发明人： Albert M. Leung
IPC分类号： G01P1500
CPC分类号： G01F1/6845 , G01P15/00 , G01P15/008 , G01P15/0802 , G01P15/12 , G01P15/18 , G01P21/00
摘要： An accelerometer having a substrate with a cavity therein, a heater extending over the cavity, a pair of temperature sensitive elements extending over the cavity equidistant from the heater, and an electrical conductor couplable to an external power source and operative to pass electrical current through the heater so as to develop a symmetrical temperature gradient in the fluid extending outwardly from the heater to the two temperature sensors. The fluid may be a liquid or a gas surrounding the heater and temperature sensors. Applied acceleration disturbs this symmetry and produces a differential temperature between the two temperature sensors proportional to the acceleration.
摘要翻译：一种加速度计，其具有其中具有空腔的基底，在空腔上延伸的加热器，在与加热器等距的空腔上延伸的一对温度敏感元件，以及可连接到外部电源并用于使电流通过以便在从加热器向外延伸到两个温度传感器的流体中产生对称的温度梯度。流体可以是围绕加热器和温度传感器的液体或气体。施加的加速度会扰乱该对称性，并在两个温度传感器之间产生与加速度成比例的差分温度。

2. 发明授权

US08225658B2 Three-dimensional microstructures and methods for making same 有权
标题翻译：三维微结构及其制作方法
公开(公告)号：US08225658B2
公开(公告)日：2012-07-24
申请号：US12413455
申请日：2009-03-27
申请人： Albert M. Leung , Meenakshinathan Parameswaran , See-Ho Tsang
发明人： Albert M. Leung , Meenakshinathan Parameswaran , See-Ho Tsang
IPC分类号： G01P15/00 , F16M13/00
CPC分类号： B81C1/00142 , H01L2224/48091 , H01L2924/1461 , H01L2924/00014 , H01L2924/00
摘要： Microstructures can be formed as patterned layers on a substrate and then erecting the microstructures out of the plane of the substrate. The microstructures may be formed over circuits in the substrate. In some embodiments the patterned layer provides resiliently-flexible members such as cantilevers or springs that can be buckled to permit an edge defined by the patterned layer to engage a surface of the substrate. In some embodiments deformation of the resiliently-flexible members results the edge being forced against the substrate. Such microstructures may be applied in a wide range of applications including supporting optical elements, sensors, antennas or the like out of the plane of a substrate. Examples of accelerometer structures are described.
摘要翻译：微结构可以在衬底上形成为图案层，然后将微结构竖立在衬底的平面之外。微结构可以形成在衬底中的电路上。在一些实施例中，图案化层提供弹性柔性构件，例如悬臂或弹簧，其可以被弯曲以允许由图案化层限定的边缘接合衬底的表面。在一些实施例中，弹性 - 柔性构件的变形导致边缘被迫抵靠衬底。这样的微结构可以应用在广泛的应用中，包括在基板的平面外支撑光学元件，传感器，天线等。描述加速度计结构的示例。

3. 发明申请

US20090242882A1 THREE-DIMENSIONAL MICROSTRUCTURES AND METHODS FOR MAKING SAME 有权
标题翻译：三维微结构及其制备方法
公开(公告)号：US20090242882A1
公开(公告)日：2009-10-01
申请号：US12413455
申请日：2009-03-27
申请人： Albert M. Leung , Meenakshinathan Parameswaran , See-Ho Tsang
发明人： Albert M. Leung , Meenakshinathan Parameswaran , See-Ho Tsang
IPC分类号： H01L29/84 , H01L29/66 , H01L23/00 , H01L21/02 , H01L21/60
CPC分类号： B81C1/00142 , H01L2224/48091 , H01L2924/1461 , H01L2924/00014 , H01L2924/00
摘要： Microstructures can be formed as patterned layers on a substrate and then erecting the microstructures out of the plane of the substrate. The microstructures may be formed over circuits in the substrate. In some embodiments the patterned layer provides resiliently-flexible members such as cantilevers or springs that can be buckled to permit an edge defined by the patterned layer to engage a surface of the substrate. In some embodiments deformation of the resiliently-flexible members results the edge being forced against the substrate. Such microstructures may be applied in a wide range of applications including supporting optical elements, sensors, antennas or the like out of the plane of a substrate. Examples of accelerometer structures are described.
摘要翻译：微结构可以在衬底上形成为图案层，然后将微结构竖立在衬底的平面之外。微结构可以形成在衬底中的电路上。在一些实施例中，图案化层提供弹性柔性构件，例如悬臂或弹簧，其可以被弯曲以允许由图案化层限定的边缘接合衬底的表面。在一些实施例中，弹性 - 柔性构件的变形导致边缘被迫抵靠衬底。这样的微结构可以应用在广泛的应用中，包括在基板的平面外支撑光学元件，传感器，天线等。描述加速度计结构的示例。

4. 发明授权

US06666088B2 Accelerometer without proof mass 有权
公开(公告)号：US06666088B2
公开(公告)日：2003-12-23
申请号：US09848000
申请日：2001-05-04
申请人： Albert M. Leung
发明人： Albert M. Leung
IPC分类号： G01P1500
CPC分类号： G01P15/008 , G01F1/6845 , G01P15/00 , G01P15/0802 , G01P15/12 , G01P15/18 , G01P21/00
摘要： An accelerometer has a substrate with a cavity therein, a heater extending over the cavity, and a pair of temperature sensitive elements each spaced apart from the heater a distance of 75-400 microns also extending over the cavity. On passing an electrical current through the heater a symmetrical temperature distribution is set up on both sides of the heater. On acceleration, this distribution moves and by measuring the temperature as sensed by the pair of temperature sensitive elements the acceleration that caused the shift can be calculated.

5. 发明授权

US06589433B2 Accelerometer without proof mass 有权
公开(公告)号：US06589433B2
公开(公告)日：2003-07-08
申请号：US09844440
申请日：2001-04-30
申请人： Albert M. Leung
发明人： Albert M. Leung
IPC分类号： G01P1500
CPC分类号： G01P15/0802 , G01F1/6845 , G01P15/00 , G01P15/008 , G01P15/12 , G01P15/18 , G01P21/00
摘要： A process for fabricating an accelerometer, which includes providing a substrate with a layer of electrically conductive material on the substrate, micromachining the substrate to form a central electrical heater, a pair of temperature sensitive elements, and a cavity beneath the heater and the temperature sensing elements. Each temperature sensing element is spaced apart from said heater a distance in the range of 75 to 400 microns. The temperature sensing elements are located on opposite sides of the heater, thereby forming an accelerometer.

6. 发明授权

US4519401A Pressure telemetry implant 失效
标题翻译：压力遥测植入
公开(公告)号：US4519401A
公开(公告)日：1985-05-28
申请号：US534094
申请日：1983-09-20
申请人： Wen H. Ko , Albert M. Leung
发明人： Wen H. Ko , Albert M. Leung
IPC分类号： A61B5/00 , A61B5/03 , G01L9/00 , G01L9/06
CPC分类号： G01L19/148 , A61B5/031 , G01L19/147 , G01L9/065 , A61B5/0031 , Y10S128/903
摘要： An implantable intracranial pressure (ICP) telemetry transmitter. Data transmission is accomplished by means of a radio frequency (RF) link coupled to a silicon piezoresistive pressure transducer. Electrostatic bonding of this transducer onto a tubular glass support provides long-term stability, stress isolation and a hermetic package. Because of the large temperature coefficient of the electrostatically bonded pressure transducer (-6 to -9 mm Hg/.degree.C.), a temperature sensor is added to allow temperature compensation to be carried out. Pulse code modulation is employed to assure accurate data transmission. Use of low duty cycle pulse powering techniques lowers the power consumption of the telemeter. The complexity of the electronics is reduced by the use of a custom integrated circuit. Two lithium batteries can provide more than one month of continuous operation and an RF command receiver provides ON/Off control of the telemeter to extend the lifetime of the telemeter.
摘要翻译：可植入颅内压（ICP）遥测发射器。通过耦合到硅压阻式压力传感器的射频（RF）链路实现数据传输。该传感器与管状玻璃支架的静电粘合提供长期的稳定性，应力隔离和气密封装。由于静电压力传感器（-6〜-9 mm Hg /℃）的温度系数较大，因此加入温度传感器可进行温度补偿。采用脉码调制来保证数据传输的准确性。使用低占空比脉冲供电技术降低了遥测仪的功耗。通过使用定制的集成电路来减少电子设备的复杂性。两个锂电池可以提供一个多月的连续操作，并且RF指令接收器提供遥测仪的ON / OFF控制，以延长遥测仪的使用寿命。

7. 发明申请

US20110011181A1 ROTATION SENSING APPARATUS AND METHODS 有权
标题翻译：旋转感应装置及方法
公开(公告)号：US20110011181A1
公开(公告)日：2011-01-20
申请号：US12837229
申请日：2010-07-15
申请人： Albert M. Leung
发明人： Albert M. Leung
IPC分类号： G01P9/00
CPC分类号： G01P9/00 , G01P15/008
摘要： Angular rate sensors cause a stream of fluid to flow by heating the fluid. A trajectory of the stream of fluid is deflected by Coriolis forces. Apparatus according to some embodiments provides two heaters spaced apart along a channel. A stream of gas can be made to flow along the channel by operating one of the heaters. The flow can be periodically reversed by alternating operation of the heaters. Temperature sensors may be applied to detect deflection of the flowing gas. Angular rate sensors may be fabricated inexpensively by micromachining techniques.
摘要翻译：角速率传感器通过加热流体导致流体流动。流体流的轨迹被科里奥利力所偏转。根据一些实施例的装置提供沿着通道间隔开的两个加热器。可以通过操作其中一个加热器，使气流沿通道流动。可以通过加热器的交替操作来定期地逆流。可以应用温度传感器来检测流动气体的偏转。角速率传感器可以通过微加工技术廉价地制造。

8. 发明授权

US06860153B2 Gas pressure sensor based on short-distance heat conduction and method for fabricating same 有权
标题翻译：基于短距离热传导的气体压力传感器及其制造方法
公开(公告)号：US06860153B2
公开(公告)日：2005-03-01
申请号：US09788437
申请日：2001-02-21
申请人： Albert M. Leung
发明人： Albert M. Leung
IPC分类号： G01L11/00 , G01L21/10 , G01L19/04
CPC分类号： G01L21/10 , G01L11/002
摘要： A thermal pressure sensor monitors pressure by measuring effects caused by variations of thermal conductivity between a member and a substrate to which the member is adhered by stiction. The interface between the member and the substrate behaves as an extremely narrow gap. In a preferred embodiment the member is a bridge extending between a pair of cantilever arms. Two pressure sensors may be combined in a Wheatstone bridge configuration. A method for fabricating a pressure sensor according to the invention comprises forming a layer of oxide on a substrate, depositing a layer of material on the oxide layer, forming the member from the layer of material, removing the oxide layer and then bringing the member into contact with the substrate. The portion of the substrate under the member may be patterned with plateaus and valleys.
摘要翻译：热压传感器通过测量由构件与粘结构件所附着的基板之间的导热性变化而产生的影响来监测压力。构件和衬底之间的界面表现为极窄的间隙。在优选实施例中，构件是在一对悬臂之间延伸的桥。两个压力传感器可以组合在惠斯通电桥配置中。根据本发明的制造压力传感器的方法包括在衬底上形成氧化物层，在氧化物层上沉积材料层，从材料层形成构件，除去氧化物层，然后使构件进入与基板接触。该部件下面的基底部分可以形成平坦的和谷底。

9. 发明授权

US06795752B1 Thermal convection accelerometer with closed-loop heater control 有权
标题翻译：具有闭环加热器控制的热对流加速度计
公开(公告)号：US06795752B1
公开(公告)日：2004-09-21
申请号：US09705996
申请日：2000-11-03
申请人： Yang Zhao , Adrian Paul Brokaw , Michael E. Rebeschini , Albert M. Leung , Gregory P. Pucci , Alexander Dribinsky
发明人： Yang Zhao , Adrian Paul Brokaw , Michael E. Rebeschini , Albert M. Leung , Gregory P. Pucci , Alexander Dribinsky
IPC分类号： G01P1500
CPC分类号： G01P15/008 , G01P15/08 , G01P15/12
摘要： An integrated convective accelerometer device. The device includes a thermal acceleration sensor having a thermopile and a heater element; control circuitry for providing closed-loop control of the thermopile common-mode voltage; an instrumentation amplifier; clock generation circuitry; voltage reference circuitry; a temperature sensor; and, output amplifiers. The device can be operated in an absolute or ratiometric mode. Further, the device is formed in a silicon substrate using standard semiconductor processes and is packaged in a standard integrated circuit package.
摘要翻译：一体化对流加速度计装置。该装置包括具有热电堆和加热元件的热加速度传感器; 用于提供热电堆共模电压的闭环控制的控制电路; 仪表放大器; 时钟发生电路; 电压参考电路; 温度传感器; 和输出放大器。该设备可以以绝对或比例模式运行。此外，使用标准半导体工艺在硅衬底中形成器件，并封装在标准集成电路封装中。

10. 发明授权

US4924216A Joystick controller apparatus 失效
标题翻译：操纵杆控制装置
公开(公告)号：US4924216A
公开(公告)日：1990-05-08
申请号：US155669
申请日：1988-02-12
申请人： Albert M. Leung
发明人： Albert M. Leung
IPC分类号： A63F13/06 , G06F3/038
CPC分类号： A63F13/235 , A63F13/06 , A63F13/24 , G05G9/047 , G06F3/0383 , A63F13/843 , A63F2300/1025 , A63F2300/1031 , A63F2300/8088
摘要： Joystick controller apparatus in which a pair of joystick controllers may send signal bursts on the same communication channel in the infrared frequency range by means of an electromagnetic transmission without recognizable loss of data. An error checking system is also provided to eliminate the effects of noise. A universal cable connector is provided for connection to various video game apparatus.
摘要翻译：操纵杆控制器装置，其中一对操纵杆控制器可以通过不具有可识别的数据丢失的电磁传输在红外频率范围内的相同通信信道上发送信号脉冲串。还提供了一个错误检查系统来消除噪声的影响。提供通用电缆连接器用于连接到各种视频游戏装置。

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