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1. 发明授权

US5068606A Two wire modulated output current circuit for use with a magnetoresistive bridge speed/position sensor 失效
标题翻译：两线调制输出电流电路与磁阻桥速度/位置传感器
公开(公告)号：US5068606A
公开(公告)日：1991-11-26
申请号：US409220
申请日：1989-09-19
申请人： Keith W. Kawate , James P. Berthold , Robert M. Margolis
发明人： Keith W. Kawate , James P. Berthold , Robert M. Margolis
IPC分类号： G01P3/487 , G01B7/00 , G01B7/30 , G01D5/14 , G01D5/16 , G01D5/245 , G01P1/00 , G01P3/488 , G01P15/105
CPC分类号： G01D5/147 , G01P1/006 , G01P15/105 , G01P3/488
摘要： A measuring circuit comprising a transducer, a comparator controlled by the transducer, a bandgap reference circuit with current compensation, a first current mirror, a second current mirror controlled by the comparator and bandgap reference to control the total current. The transducer is a magnetoresistive transducer.

2. 发明授权

US5770802A Sensor with improved capacitive to voltage converter integrated circuit 失效
公开(公告)号：US5770802A
公开(公告)日：1998-06-23
申请号：US840744
申请日：1997-04-16
申请人： James P. Berthold , Keith W. Kawate
发明人： James P. Berthold , Keith W. Kawate
IPC分类号： G01L1/14 , G01L9/12 , G01P15/125
CPC分类号： G01L9/125
摘要： A capacitive transducer (10) which provides an output voltage in response to the application of a mechanical stimulus such as pressure or acceleration includes a signal conditioning integrated circuit (12) to which are connected a variable capacitor (C.sub.VAR), a reference capacitor (C.sub.REF), a linear correction capacitor (C.sub.LIN) as well as an integrating capacitor (C.sub.INT) and associated filtering components. The linear correction capacitor (C.sub.LIN) is used to offset a fixed parasitic charge associated with the variable capacitor. Any net error charge appearing on a detect, common node (pin 4) between the variable capacitor and the reference capacitor is cancelled out by means of an analog feedback network (22). In a modified embodiment a thermal compensation network (40) allows for correction for thermal error at a second temperature without having any affect at a first temperature.

3. 发明授权

US6058783A Sensor with improved capacitive to voltage converter integrated circuit 失效
标题翻译：传感器具有改进的电容式电压转换器集成电路
公开(公告)号：US6058783A
公开(公告)日：2000-05-09
申请号：US13019
申请日：1998-01-26
申请人： James P. Berthold , Keith W. Kawate
发明人： James P. Berthold , Keith W. Kawate
IPC分类号： G01L1/14 , G01L9/12 , G01P15/125
CPC分类号： G01L9/125
摘要： A capacitive transducer (10) which provides an output voltage in response to the application of a mechanical stimulus such as pressure or acceleration includes a signal conditioning integrated circuit (12) to which are connected a variable capacitor (C.sub.VAR), a reference capacitor (C.sub.REF), a linear correction capacitor (C.sub.LIN) as well as an integrating capacitor (C.sub.INT) and associated filtering components. The linear correction capacitor (C.sub.LIN) is used to offset a fixed parasitic charge associated with the variable capacitor. Any net error charge appearing on a detect, common node (pin 4) between the variable capacitor and the reference capacitor is cancelled out by means of an analog feedback network (22). In a modified embodiment a thermal compensation network (40) allows for correction for thermal error at a second temperature without having any affect at a first temperature.
摘要翻译：响应于诸如压力或加速度的机械刺激的应用而提供输出电压的电容式换能器（10）包括信号调节集成电路（12），其连接有可变电容器（CVAR），参考电容器（CREF）），线性校正电容器（CLIN）以及积分电容器（CINT）和相关的滤波元件。线性校正电容器（CLIN）用于抵消与可变电容器相关联的固定寄生电荷。在可变电容器和参考电容器之间的检测公共节点（引脚4）上出现的任何净误差电荷通过模拟反馈网络（22）被抵消。在修改的实施例中，热补偿网络（40）允许在第二温度下对热误差进行校正，而不会在第一温度下产生任何影响。

4. 发明授权

US5068589A Supplemental automotive vehicular heater system and method of providing same 失效
标题翻译：补充汽车加热器系统及其提供方法
公开(公告)号：US5068589A
公开(公告)日：1991-11-26
申请号：US342054
申请日：1989-04-24
申请人： Stephen B. Offiler , Peter G. Berg , Keith W. Kawate
发明人： Stephen B. Offiler , Peter G. Berg , Keith W. Kawate
IPC分类号： B60L1/02 , H02J7/14
CPC分类号： H02J7/1438 , B60L1/02 , Y10T307/289
摘要： A supplementary heating system particularly suitable for an automotive vehicle comprises a step down transformer coupled to the stator windings of the vehicle's alternator and a positive temperature coefficient (PTC) of resistivity heater electrically connected intermediate the stator windings and the transformer in parallel with the transformer. Due to the presence of the transformer the voltage regulator causes the alternator to operate at a higher than customary voltage to provide the conventional 14.4 volts for the vehicle's normal electrical loads with the high voltage used to energize the heater. The heater can be in the form of a so-called "honeycomb" having a plurality of parallely extending passages or cells disposed in the air stream going from the main heater into the passenger compartment and can be either a multiphase, single phase or direct current type. In one embodiment the transformer is switched into and out of electrical the transformer is alternator dependent on the energization of the heater, while in another embodiment the transformer is always electrically coupled to the alternator with the heater switched into and out of the circuit as desired.
摘要翻译：特别适合于机动车辆的辅助加热系统包括耦合到车辆交流发电机的定子绕组的降压变压器和与变压器并联的定子绕组和变压器之间电连接的电阻率加热器的正温度系数（PTC）。由于变压器的存在，电压调节器使得交流发电机以高于常规电压运行，以为车辆的正常电负载提供常规的14.4伏特，其中用于为加热器通电的高电压。加热器可以是所谓的“蜂窝体”的形式，其具有多个平行延伸的通道或细胞，其设置在从主加热器进入乘客舱的气流中，并且可以是多相，单相或直流类型。在一个实施例中，变压器被切换到电力中，变压器是交流发电机，取决于加热器的通电，而在另一个实施例中，变压器总是电耦合到交流发电机，而加热器根据需要切换进出电路。

5. 发明授权

US4827242A CMOS/bipolar integrated circuit 失效
标题翻译： CMOS /双极集成电路
公开(公告)号：US4827242A
公开(公告)日：1989-05-02
申请号：US939663
申请日：1986-12-09
申请人： Gene E. Blankenship , Edward M. Gonsalves , Keith W. Kawate , Stephen P. Sacarisen , William H. Giolma , Damir A. Spanjol
发明人： Gene E. Blankenship , Edward M. Gonsalves , Keith W. Kawate , Stephen P. Sacarisen , William H. Giolma , Damir A. Spanjol
IPC分类号： G01N17/02 , B60Q1/00
CPC分类号： G01N17/02 , F01P2025/70 , F01P2025/80
摘要： A dual function sensor particularly useful with vehicular coolant systems indicates when a coolant liquid becomes corrosive to such cooling system materials as well as when the liquid falls to a low level condition. A reference and a sense electrode are used to probe the condition of the coolant liquid. Integral electronics provide signal conditioning and transmitting to indicate both corrosive and low level coolant conditions. The sensor assembly mounted directly onto a tubular coupling on the vehicle radiator by pushing the assembly onto the coupling until a spring wire element snaps past a lip formed on the free distal end of the coupling. An electrical connector shroud extends from the assembly and accommodates a mating male connector which is pushed onto the shroud until a clip mounted on the male connector snaps over a locking tab located on the shroud. The male connector typically is connected to an engine control module (ECM).
摘要翻译：特别适用于车辆冷却剂系统的双重功能传感器指示冷却剂液体何时腐蚀这种冷却系统材料以及当液体降至低水平状态时。使用参考电极和感测电极来探测冷却剂液体的状态。集成电子设备提供信号调理和传输，以指示腐蚀性和低水平冷却剂条件。传感器组件通过将组件推到联接器上直接安装在车辆辐射器上的管状联接器上，直到弹簧丝元件穿过形成在联接器的自由远端上的唇缘。电连接器护罩从组件延伸并且容纳配合的阳连接器，该连接器被推到护罩上，直到安装在阳连接器上的夹子卡在位于护罩上的锁定舌片上。公连接器通常连接到发动机控制模块（ECM）。

6. 发明申请

US20140142873A1 SYSTEMS AND METHODS OF DISCRIMINATING DC ARCS AND LOAD SWITCHING NOISE 有权
标题翻译：分离DC ARCS和负载开关噪声的系统和方法
公开(公告)号：US20140142873A1
公开(公告)日：2014-05-22
申请号：US13679039
申请日：2012-11-16
申请人： Keith W. Kawate , Jianhong Kang
发明人： Keith W. Kawate , Jianhong Kang
IPC分类号： G06F19/00 , G01R31/40
CPC分类号： G06F19/00 , G01R31/1227 , G01R31/40 , H02H1/0015 , H02H3/445 , H02S50/10
摘要： Systems and methods of detecting arcing in DC power systems that can differentiate between DC arcs and load-switching noise. The systems and methods can determine, within a plurality of predetermined time intervals, at least the pulse count (PC) per predetermined time interval, and the pulse duration (PD) per predetermined time interval, in which the PC and the PD can correspond to the number and the intensity of potential arcing events in a DC power system, respectively. The systems and methods can process the PC and PD using one or more arc fault detection algorithms, thereby differentiating between DC arcs and load-switching noise with increased reliability.
摘要翻译：在DC电力系统中检测电弧的系统和方法可以区分直流电弧和负载开关噪声。系统和方法可以在多个预定时间间隔内至少确定每个预定时间间隔的脉冲计数（PC）和每个预定时间间隔的脉冲持续时间（PD），其中PC和PD可对应于分别在直流电力系统中的电弧放电事件的数量和强度。系统和方法可以使用一个或多个电弧故障检测算法对PC和PD进行处理，从而在可靠性提高的情况下区分直流电弧和负载切换噪声。

7. 发明授权

US5471034A Heater apparatus and process for heating a fluid stream with PTC heating elements electrically connected in series 失效
标题翻译：加热装置和用于加热与串联电连接的PTC加热元件的流体流的方法
公开(公告)号：US5471034A
公开(公告)日：1995-11-28
申请号：US32940
申请日：1993-03-17
申请人： Keith W. Kawate , Peter G. Berg
发明人： Keith W. Kawate , Peter G. Berg
IPC分类号： B60H1/22 , F24H3/04 , H05B3/14 , H05B1/02
CPC分类号： B60H1/2225 , F24H3/0429 , F24H9/1872 , H05B3/141
摘要： A heater for heating fluid is shown having a plurality of self-regulating electrical resistance heater elements 22 placed in electrically and thermally conductive relationship with heat transfer members 20, 120. The heat transfer members are each configured to form a plurality of fluid receiving channels so that when placed in a fluid stream heat generated by the heater elements will be dissipated to the fluid through the heat transfer members. Additionally, thermally conductive grease is used between the heater elements 22 and heat transfer member 20, 120 to better transfer the heat. The heater elements are arranged in groups with at least two heater elements in a group electrically connected in series and the groups electrically connected in parallel.
摘要翻译：示出了用于加热流体的加热器，其具有多个自调节电阻加热器元件22，该多个自调节电阻加热器元件22与传热构件20,120具有导电和导热的关系。传热构件各自被构造成形成多个流体接收通道，当放置在流体流中，由加热器元件产生的热量将通过传热构件消散到流体。此外，在加热器元件22和传热构件20,120之间使用导热油脂以更好地传递热量。加热器元件以组中的至少两个加热元件排列成串联电连接，并且所述组并联电连接。

8. 发明授权

US5051937A Low cost high precision sensor 失效
标题翻译：低成本高精度传感器
公开(公告)号：US5051937A
公开(公告)日：1991-09-24
申请号：US621000
申请日：1990-12-03
申请人： Keith W. Kawate , Anthony J. Sabetti
发明人： Keith W. Kawate , Anthony J. Sabetti
IPC分类号： G01L9/00 , G01L9/12 , G01L27/00
CPC分类号： G01L9/12 , G01L27/005 , G01L9/0072
摘要： A universal sensor has a selectivity scaled condition responsive element such as a capacitive pressure transducer mounted on a common support with signal conditioning means embodied in an integrated circuit to provide a control signal precisely corresponding to a sensed condition. Electrically actuatable means on the support are incorporated in the circuit for low cost, mass producible calibration of the circuit and condition-responsive element relative to each other after assembly on the common support. Preferably, a capacitive pressure transducer and a reference capacitor are arranged in a charge-locked loop relation with a common node while an array of switches cycles the voltage across the transducer and reference capacitors with opposite transitions with a predetermined frequency so change in transducer capacitance results in a differential voltage at the common node. That voltage is amplified to drive a current source-sink-integrate network and adjust sensor output voltage to restore a balanced condition at the common node and maintain sensor output voltage at a level inversely proportional to transducer capacitance. The sensor is adapted for calibration to provide an electrical calibration signal for actuating calibration means such as electrically settable potentiometers, or serially programmed digital-to-analog converters or the like to provide bias and gain and non-linearity calibration in the sensor. In one embodiment, calibration is achieved by adjustment of variable capacitors.
摘要翻译：通用传感器具有选择性缩放状态响应元件，例如安装在公共支架上的电容式压力传感器，其具有实施在集成电路中的信号调节装置，以提供精确对应于感测状态的控制信号。支撑上的电致动装置被并入电路中，用于在共同支撑件上组装之后相对于彼此的电路和状态响应元件的低成本，大规模生产的校准。优选地，电容式压力换能器和参考电容器以与公共节点的电荷锁定环关系布置，而开关阵列绕过换能器和具有预定频率的相反转换的参考电容器循环，因此换能器电容结果发生变化在公共节点处的差分电压。该电压被放大以驱动电流源集成网络并调整传感器输出电压以恢复公共节点处的平衡状态，并将传感器输出电压维持在与换能器电容成反比的水平。该传感器适用于校准，以提供用于致动诸如电可设置电位计或串行编程的数模转换器等的校准装置的电校准信号，以在传感器中提供偏置和增益和非线性校准。在一个实施例中，通过调整可变电容器来实现校准。

9. 发明授权

US4982351A Low cost high precision sensor 失效
标题翻译：低成本高精度传感器
公开(公告)号：US4982351A
公开(公告)日：1991-01-01
申请号：US432024
申请日：1989-11-06
申请人： Keith W. Kawate , Anthony J. Sabetti
发明人： Keith W. Kawate , Anthony J. Sabetti
IPC分类号： G01L9/00 , G01L9/12 , G01L27/00
CPC分类号： G01L9/12 , G01L27/005 , G01L9/0072
摘要： A universal sensor has a selectively scaled condition responsive element such as a capacitive pressure transducer mounted on a common support with signal conditioning means embodied in an integrated circuit to provide a control signal precisely corresponding to a sensed condition. Electrically actuatable means on the support are incorporated in the circuit for low cost, mass producible calibration of the circuit and condition-responsive element relative to each other after assembly on the common support. Preferably, a capacitive pressure transducer, and a reference capacitor are arranged in a charge-locked loop relation with a common node while an array of switches cycles the voltage across the transducer and reference capacitors with opposite transitions with a predetermined frequency so change in transducer capacitance results in a differential voltage at the common node. That voltage is amplified to drive a current source-sink-integrate network and adjust sensor output voltage to to restore a balanced condition at the common node and maintain sensor output voltage at a level inversely proportional to transducer capacitance. The sensor is adapted for calibration to provide an electrical calibration signal for actuating calibration means such as electrically settable potentiometers, or serially programmed digital-to-analog converters or the like to provide bias and gain and non-linearity calibration in the sensor. In one embodiment, calibration is achieved by adjustment of variable capacitors.
摘要翻译：通用传感器具有选择性缩放的状态响应元件，例如安装在公共支架上的电容式压力换能器，其具有实施在集成电路中的信号调节装置，以提供精确对应于感测状态的控制信号。支撑上的电致动装置被并入电路中，用于在共同支撑件上组装之后相对于彼此的电路和状态响应元件的低成本，大规模生产的校准。优选地，电容式压力传感器和参考电容器以与公共节点的充电锁定环路关系布置，而开关阵列绕过换能器的电压和具有预定频率的相反转换的参考电容器循环，因此换能器电容的变化导致公共节点处的差分电压。该电压被放大以驱动电流源 - 集成网络并且调节传感器输出电压以恢复公共节点处的平衡状态，并将传感器输出电压维持在与换能器电容成反比的水平。该传感器适用于校准，以提供用于致动诸如电可设置电位器或串行编程的数模转换器等的校准装置的电校准信号，以在传感器中提供偏置和增益和非线性校准。在一个实施例中，通过调整可变电容器来实现校准。

10. 发明授权

US4678982A Supplemental automotive vehicular heater system and method of providing same 失效
标题翻译：补充汽车加热器系统及其提供方法
公开(公告)号：US4678982A
公开(公告)日：1987-07-07
申请号：US852484
申请日：1986-04-16
申请人： Stephen B. Offiler , Peter G. Berg , Keith W. Kawate
发明人： Stephen B. Offiler , Peter G. Berg , Keith W. Kawate
IPC分类号： B60L1/02 , H02J7/14
CPC分类号： B60L1/02 , H02J7/1438
摘要： A supplementary heating system particularly suitable for an automotive vehicle comprises a step down transformer coupled to the stator windings of the vehicle's alternator and a positive temperature coefficient (PTC) of resistivity heater electrically connected intermediate the stator windings and the transformer in parallel with the transformer. Due to the presence of the transformer the voltage regulator causes the alternator to operate at a higher than customary voltage to provide the conventional 14.4 volts for the vehicle's normal electrical loads with the high voltage used to energize the heater. The heater can be in the form of a so-called "honeycomb" having a plurality of parallely extending passages or cells disposed in the air stream going from the main heater into the passenger compartment and can be either a multiphase, single phase or direct current type. In one embodiment the transformer is switched into and out of electrical coupling with the alternator dependent on the energization of the heater, while in another embodiment the transformer is always electrically coupled to the alternator with the heater switched into and out of the circuit as desired.
摘要翻译：特别适合于机动车辆的辅助加热系统包括耦合到车辆交流发电机的定子绕组的降压变压器和与变压器并联的定子绕组和变压器之间电连接的电阻率加热器的正温度系数（PTC）。由于变压器的存在，电压调节器使得交流发电机以高于常规电压运行，以为车辆的正常电负载提供常规的14.4伏特，其中用于为加热器通电的高电压。加热器可以是所谓的“蜂窝体”的形式，其具有多个平行延伸的通道或细胞，其设置在从主加热器进入乘客舱的气流中，并且可以是多相，单相或直流类型。在一个实施例中，变压器取决于加热器的通电而切换到与交流发电机的电耦合，而在另一个实施例中，变压器总是电耦合到交流发电机，而加热器根据需要切换到电路中。

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