公开(公告)号：US20060272415A1

公开(公告)日：2006-12-07

申请号：US11145461

申请日：2005-06-02

Applicant: James Liu ,  Steven Magee ,  James Cook

Inventor： James Liu ,  Steven Magee ,  James Cook

IPC: G01N29/00

CPC classification number: A47J37/1266 ,  G01N29/022 ,  G01N33/03 ,  G01N2291/0226 ,  G01N2291/0256 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0427

Abstract: A cooking oil quality sensing apparatus and system includes an acoustic wave sensor comprising one or more acoustic wave transducers configured upon a piezoelectric substrate such that when the acoustic wave sensor is in contact with cooking oil, the sensor generates acoustic wave data indicative of the quality of the cooking oil. An antenna can be integrated with the acoustic wave sensor, such that the antenna receives data an external source and transmits the acoustic wave data indicative of the quality of the cooking oil to the external source. An oscillator can be integrated with the acoustic wave sensor, such that the output of the oscillator contains data indicative of the quality of the cooking oil. The acoustic wave sensor can be coated with a material that is selectively sensitive and/or reactive to one or more fatty acids associated with or contained in the cooking oil.

Abstract translation: 烹饪油质量检测装置和系统包括声波传感器，该声波传感器包括在压电基片上配置的一个或多个声波换能器，使得当声波传感器与烹饪油接触时，传感器产生指示质量的声波数据 烹饪油。 天线可以与声波传感器集成，使得天线接收外部源的数据，并将表示烹饪油的质量的声波数据传输到外部源。 振荡器可以与声波传感器集成，使得振荡器的输出包含指示烹饪油的质量的数据。 声波传感器可以涂覆有与对烹饪油相关或包含的一种或多种脂肪酸选择性敏感和/或反应的材料。

公开(公告)号：US20060238078A1

公开(公告)日：2006-10-26

申请号：US11112116

申请日：2005-04-21

Applicant: James Liu

Inventor： James Liu

IPC: H01L41/00

CPC classification number: G01C19/5698

Abstract: A rotation rate sensing apparatus is configured from an acoustic wave device comprising a plurality of interdigital transducers for the SAW configuration or electrodes for vibration beams configuration. Such sensors are configured upon an elastic substrate. In the SAW configuration, the plurality of interdigital transducers includes a first interdigital transducer, a second interdigital transducer and a third interdigital transducer. A generator(s) can be formed from the first and third interdigital transducers, wherein the generator generates a standing wave subject to a Coriolis force by adding two progressive waves at each of the first and third interdigital transducers. In the vibration beams configuration, a drive beam(s) and pickup beam(s) can be implemented such that the vibration beams are excited through an RF signal and a Coriolis force excites the pickup beam(s) in order to obtain angular/rotation rate data.

Abstract translation: 旋转速率感测装置由包括用于SAW构型的多个叉指式换能器或用于振动梁构造的电极的声波装置构成。 这样的传感器被配置在弹性基底上。 在SAW配置中，多个叉指式换能器包括第一叉指换能器，第二叉指式换能器和第三叉指换能器。 发电机可以由第一和第三叉指换能器形成，其中发电机通过在第一和第三叉指换能器中的每一个处加上两个逐行波来产生经过科里奥利力的驻波。 在振动梁构造中，可以实现驱动梁和拾取束，使得振动束通过RF信号激励，并且科里奥利力激发拾取光束以获得角/旋转 速率数据。

公开(公告)号：US07102864B2

公开(公告)日：2006-09-05

申请号：US10866024

申请日：2004-06-14

Applicant: James Liu ,  Jimmy Hsieh ,  Sheng-Lyang Jang ,  Hsueh-Ming Lu

Inventor： James Liu ,  Jimmy Hsieh ,  Sheng-Lyang Jang ,  Hsueh-Ming Lu

IPC: H02H9/00

CPC classification number: H01L27/0262

Abstract: A latch-up-free ESD protection circuit using SCR is disclosed, in which an SCR is connected between the input pad and the negative power supply; a turn-on switch and a turn-off switch are connected between the positive power supply VDD (or the input pad) and the SCR; and a transistor gating circuit is connected to the turn-on switch and the turn-off switch to direct the operation of the SCR. When overvoltage stress develops over the input pad in the fast-transient mode, the turn-on switch enables the NPN transistor to switch on the SCR to form a discharging path for electrostatic discharge; and when overvoltage stress is released, the turn-off switch enables the PNP transistor to switch off the SCR, thus making it immune to any latch-up after the overvoltage stress is released, and having the advantages of fast triggering, low trigger voltage, no latch-up, and full ESD protection in the active and passive modes.

Abstract translation: 公开了一种使用SCR的无闩锁的ESD保护电路，其中SCR连接在输入焊盘和负电源之间; 在正电源V DD（或输入焊盘）和SCR之间连接有导通开关和关断开关; 并且晶体管门控电路连接到导通开关和关断开关以指导SCR的操作。 当在快速瞬态模式下在输入焊盘上产生过压应力时，导通开关使得NPN晶体管能够接通SCR以形成用于静电放电的放电路径; 当释放过压应力时，关断开关使PNP晶体管关断SCR，从而在过压应力释放后免受任何闭锁影响，具有触发快，触发电压低， 无闩锁和主动和被动模式下的全面ESD保护。

公开(公告)号：US20060179918A1

公开(公告)日：2006-08-17

申请号：US11058550

申请日：2005-02-15

Applicant: James Liu

Inventor： James Liu

IPC: G01N29/02

CPC classification number: G01N29/326 ,  G01N29/022 ,  G01N2291/0215 ,  G01N2291/0256 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0426

Abstract: Quartz crystal microbalance (QCM) replaces the SAW device used in the gas chromatograph (GC) systems could result in better performance. The use of multiple vibration modes, variable vibration amplitude and overtones could make the sensor detector with self-temperature compensation capability, higher sensitivity and longer sensor life due to reduced aging rate.

Abstract translation: 石英晶体微量天平（QCM）取代气相色谱仪（GC）系统中使用的SAW器件可以产生更好的性能。 使用多种振动模式，可变振幅和泛音可以使传感器检测器具有自我温度补偿能力，更高的灵敏度和更长的传感器寿命，因为老化速率降低。

公开(公告)号：US07073368B2

公开(公告)日：2006-07-11

申请号：US10856363

申请日：2004-05-28

Applicant: Roland A. Wood ,  James Liu

Inventor： Roland A. Wood ,  James Liu

IPC: G01N27/28

CPC classification number: G01N33/0006

Abstract: A gas sensor includes a gas detector, a reference gas generator, and a circuit. The reference gas generator includes a heater and a gas releasing material. The gas releasing material is in proximity to the heater such that, when the heater is energized during calibration, the gas releasing material releases an overpressure of a reference gas to the gas detector and such that, when the heater is not energized, the gas releasing material releases no substantial overpressure of the reference gas to the gas detector. The circuit energizes the heater during calibration and is responsive to an output of the gas detector during the period when the gas detector is provided the reference gas so as to calibrate the gas sensor.

Abstract translation: 气体传感器包括气体检测器，参考气体发生器和电路。 参考气体发生器包括加热器和气体释放材料。 气体释放材料靠近加热器，使得当校准期间加热器通电时，气体释放材料释放出对气体检测器的参考气体的过压，并且当加热器未通电时，气体释放 材料不会释放出对气体检测器的参考气体的实质过压。 电路在校准过程中激励加热器，并且在为气体检测器提供参考气体以便校准气体传感器的期间期间响应于气体检测器的输出。

公开(公告)号：US20060117831A1

公开(公告)日：2006-06-08

申请号：US11001410

申请日：2004-11-30

Applicant: James Liu

Inventor： James Liu

IPC: G01N7/00

CPC classification number: G01N33/0006 ,  G01N33/005

Abstract: Sensor systems and methods are disclosed herein. In general, a sensor can be provided for detecting the presence of a gas (e.g., hydrogen) in an area proximate to the sensor component. A composite material is generally associated with the sensor, wherein the composite material comprises a metal hydride material for gas storage. A heater can also be provided that heats the metal hydride material to a particular temperature at which hydrogen is released from the metal hydride material in order to calibrate and self-test the sensor for detecting the presence of gas.

Abstract translation: 本文公开了传感器系统和方法。 通常，可以提供传感器来检测在靠近传感器部件的区域中气体（例如氢）的存在。 复合材料通常与传感器相关联，其中复合材料包括用于气体储存的金属氢化物材料。 还可以提供一种加热器，其将金属氢化物材料加热到从金属氢化物材料释放氢的特定温度，以便校准和自我测试用于检测气体存在的传感器。

公开(公告)号：US20060107749A1

公开(公告)日：2006-05-25

申请号：US10995460

申请日：2004-11-22

Applicant: James Liu ,  James Cook ,  Peter Dierauer

Inventor： James Liu ,  James Cook ,  Peter Dierauer

IPC: G01L9/00

CPC classification number: A61B5/0002 ,  A61B5/0215 ,  A61B2560/0412 ,  A61B2562/02 ,  G01L9/0025

Abstract: In general, a dielectric polymer substrate provided and an antenna formed upon the dielectric polymer substrate. A piezoelectric polymer layer (e.g., a polyvinylidene fluoride (PVDF) piezoelectric film) can be formed above the dielectric polymer substrate. Additionally, an interdigital (IDT) layer can be configured upon the PVDF piezoelectric layer, thereby permitting the piezoelectric polymer layer and the IDT layer to detect pressure data and transmit the data to a receiver via the antenna.

Abstract translation: 通常，提供介电聚合物基材和形成在电介质聚合物基材上的天线。 压电聚合物层（例如，聚偏二氟乙烯（PVDF）压电膜）可以形成在电介质聚合物基材的上方。 此外，可以在PVDF压电层上配置叉指（IDT）层，从而允许压电聚合物层和IDT层检测压力数据，并通过天线将数据发送到接收器。

公开(公告)号：US20060049714A1

公开(公告)日：2006-03-09

申请号：US10933945

申请日：2004-09-03

Applicant: James Liu ,  Peter Dierauer ,  Mark Repko

Inventor： James Liu ,  Peter Dierauer ,  Mark Repko

IPC: H03H9/25

CPC classification number: G01S13/755 ,  G01N29/022 ,  G01N29/2462 ,  G01N2291/011 ,  G01N2291/014 ,  G01N2291/0256 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/101

Abstract: A passive wireless acoustic wave chemical sensor can be utilized for monitoring the concentration of an analyte in a substance such as blood. Such an acoustic wave chemical sensor can be configured to include one or more interdigital transducers and a selective coating formed upon a piezoelectric substrate. The coating and the interdigital transducer(s) can be used to convert electrical signal to surface waves thereof. An antenna can be connected to the acoustic wave device, wherein the antenna receives one or more input signals, which excite the acoustic device and to produce an output signal that is related to the concentration of the analyte of interest.

Abstract translation: 无源无线声波化学传感器可用于监测诸如血液之类的物质中分析物的浓度。 这样的声波化学传感器可以被配置为包括一个或多个交叉指型换能器和形成在压电基板上的选择性涂层。 涂层和叉指式换能器可用于将电信号转换成其表面波。 天线可以连接到声波装置，其中天线接收一个或多个输入信号，其激励声学装置并产生与感兴趣的分析物的浓度相关的输出信号。

公开(公告)号：US20060002966A1

公开(公告)日：2006-01-05

申请号：US11208209

申请日：2005-08-18

Applicant: Giovanni Pauletti ,  James Liu ,  Leslie Benet ,  Wolfgang Ritschel

Inventor： Giovanni Pauletti ,  James Liu ,  Leslie Benet ,  Wolfgang Ritschel

IPC: A61K38/13 ,  A61K31/704 ,  A61K31/4745

CPC classification number: A61K9/0034 ,  A61K9/0036

Abstract: Devices, methods, and compositions for cancer therapy by administration of chemotherapeutic agents and/or inhibitors of membrane efflux systems to the vagina for topical and systemic tumor targets.

公开(公告)号：US20050240110A1

公开(公告)日：2005-10-27

申请号：US10829729

申请日：2004-04-21

Applicant: James Liu ,  Richard Alderman

Inventor： James Liu ,  Richard Alderman

IPC: A61B5/00 ,  A61B8/06 ,  G01F1/66 ,  G01F1/688 ,  A61B5/07 ,  A61B5/02 ,  G01N9/04 ,  H03H7/30

CPC classification number: G01F1/6882 ,  A61B5/0031 ,  A61B5/411 ,  A61B8/06 ,  A61B8/12 ,  A61B8/4472

Abstract: A wireless surface wave flow sensor can be utilized for monitoring the flow of fluid. Such a surface wave flow sensor can be configured to include one or more interdigital transducers and a self-heating heater formed upon a piezoelectric substrate. The interdigital transducer(s) can be selected to convert electrical signals to surface waves thereof. An antenna can also be connected to the surface wave device, wherein the antenna can receive one or more signals, which excites the acoustic device to produce a frequency output associated with the flow of the fluid for analysis thereof.

Abstract translation: 无线表面波流传感器可用于监测流体的流动。 这种表面波流量传感器可以被配置为包括形成在压电基板上的一个或多个叉指式换能器和自加热加热器。 可以选择叉指换能器以将电信号转换成其表面波。 天线也可以连接到表面波装置，其中天线可以接收一个或多个信号，该信号激励声学装置以产生与流体流相关联的频率输出，用于分析。