公开(公告)号：US20030107336A1

公开(公告)日：2003-06-12

申请号：US09958075

申请日：2002-01-08

Inventor： Koichi Kobayashi ,  Shigemichi Sakata ,  Minoru Suzuki

IPC: H04M001/00 ,  H02K033/00

CPC classification number: B06B1/0261 ,  B06B1/0253 ,  B06B1/045 ,  B06B2201/53 ,  B06B2201/70

Abstract: There is provided a vibration generator that permits to operate by following a mechanical resonance point. The vibration generator 1 has a vibration generation portion 2 having an electromagnetic coil 13 and a magnet 11 float-fixed by a spring member 12. The electromagnetic coil 13 is square-wave driven to obtain vibration force. The vibration generator 1 comprises a driving control portion 10 for detecting a driving voltage of the electromagnetic coil 13 at a predetermined constant interval. By the driving control portion 10, a driving frequency of the electromagnetic coil 13 is made high when an induced voltage waveform of the driving voltage is of rightward increase type, and the driving frequency is made low when the induced voltage waveform is of leftward increase. This permits the driving frequency of the electromagnetic coil to be shifted to a resonance frequency of the vibration generation portion 2. Consequently, driving of the electromagnetic coil 13 can follow a mechanical resonance point so that an sufficiently large vibration can be obtained.

Abstract translation: 提供了一种振动发生器，其允许通过跟随机械共振点进行操作。 振动发生器1具有电磁线圈13的振动产生部分2和由弹簧部件12浮动固定的磁体11.电磁线圈13被方波驱动以获得振动力。 振动发生器1包括用于以预定的恒定间隔检测电磁线圈13的驱动电压的驱动控制部分10。 通过驱动控制部10，当驱动电压的感应电压波形为向右增加型时，电磁线圈13的驱动频率变高，并且当感应电压波形向左增加时驱动频率变低。 这允许电磁线圈的驱动频率移动到振动产生部分2的共振频率。因此，电磁线圈13的驱动可以跟随机械共振点，从而可以获得足够大的振动。

公开(公告)号：US20020180593A1

公开(公告)日：2002-12-05

申请号：US10128964

申请日：2002-04-24

Inventor： Hideaki Uemura ,  Kenji Wakana

IPC: G08B003/00

CPC classification number: H03K7/08 ,  B06B1/0238 ,  B06B2201/52 ,  B06B2201/70 ,  G06F1/025

Abstract: A pulse signal, having a buzzer-driving frequency, for driving a buzzer (3) is generated by a free running timer of a timer management section of a microcomputer (1). The timer management section operates independently of software processing of the microcomputer (1). A transistor (2) is turned on and off by the pulse signal having the buzzer-driving frequency. Accordingly, electricity flows through the buzzer (3). The buzzer (3) in turn, generates a sound.

Abstract translation: 具有蜂鸣器驱动频率的用于驱动蜂鸣器（3）的脉冲信号由微计算机（1）的定时器管理部分的自由运行定时器产生。 定时器管理部分独立于微计算机（1）的软件处理工作。 晶体管（2）由具有蜂鸣器驱动频率的脉冲信号导通和截止。 因此，电流通过蜂鸣器（3）。 蜂鸣器（3）依次产生声音。

公开(公告)号：US06470286B1

公开(公告)日：2002-10-22

申请号：US10002453

申请日：2001-11-01

Applicant: Ralf Seip ,  Russell C. Watts

Inventor： Ralf Seip ,  Russell C. Watts

IPC: G01K1500

CPC classification number: B60H1/00742 ,  B06B1/0215 ,  B06B2201/40 ,  B06B2201/51 ,  B06B2201/70 ,  B60H1/00735 ,  B60H1/00771 ,  B60H1/00814 ,  B60R21/01536 ,  B60W30/18054 ,  B60W40/09 ,  B60W2040/0818 ,  G01S7/52006 ,  G01S7/5205 ,  G01S7/521

Abstract: Method, apparatus and computer programs are described for compensating for the effect of temperature on the sensitivity of electrostatic ultrasound (US) transducers, particularly as used in an automotive occupancy sensing (AOS) systems for sensing the nature or type of occupant and the location of the occupant with respect to the vehicle interior. The invention permits the AOS to classify the occupancy state of the vehicle from a US echo signal substantially free of the effects of temperature on signal amplitude. A capacitive divider or voltage monitor is employed to measure the capacitance of the transducer. The voltage monitor output is used by the scaling algorithm of a compensator to determine the scaling factor to be applied to the US transducer signal to compensate for the effect of temperature oil the transducer sensitivity. Calibration procedures and software are disclosed for determining the coefficients of the scaling algorithm to compensate for temperature effects and also to compensate for installation factors, transducer manufacturing variations, and circuit board effects. The system disclosed is useful for other types of signal processing in addition to temperature compensation of AOS ultrasonic signals, and may be used in other ranging devices such as cameras, golf or binocular range finders, and measuring devices and instruments.

Abstract translation: 描述了用于补偿温度对静电超声波（US）传感器的灵敏度的影响的方法，装置和计算机程序，特别是在用于感测乘员的性质或类型的汽车占用感测（AOS）系统中使用的位置以及 乘客相对于车辆内部。 本发明允许AOS从基本上不受温度对信号幅度的影响的美国回波信号分类车辆的占用状态。 采用电容分压器或电压监视器来测量传感器的电容。 电压监视器输出由补偿器的缩放算法使用，以确定要应用于美国传感器信号的比例因子，以补偿温度传感器灵敏度的影响。 公开了用于确定缩放算法的系数以补偿温度影响并且还补偿安装因素，换能器制造变化和电路板效应的校准程序和软件。 除了AOS超声波信号的温度补偿之外，所公开的系统对于其它类型的信号处理也是有用的，并且可以用于其他测距装置，例如相机，高尔夫或双目测距仪，以及测量装置和仪器。

公开(公告)号：US20020117940A1

公开(公告)日：2002-08-29

申请号：US09792778

申请日：2001-02-23

Applicant: Quality Research, Development & Consulting, Inc.

Inventor： Daryoush Allaei

IPC: H01L041/04

CPC classification number: B07B1/50 ,  B06B1/0261 ,  B06B2201/70 ,  B07B1/42

Abstract: A screening machine that uses electrically controlled transducers to vibrate a separating screen. The transducers can be piezoelectric patches, discrete piezoelectric components, or electromagnetic shakers. Further, the transducers can be coupled directly to the screen or through a vibration amplifier. The transducers and/or amplifiers can be coupled to the screen at different attachment locations. One or more of the transducers can be used as sensors to provide feedback for operation control.

Abstract translation: 一种使用电控传感器振动分离屏幕的筛选机。 传感器可以是压电贴片，离散压电元件或电磁振荡器。 此外，换能器可以直接耦合到屏幕或通过振动放大器。 换能器和/或放大器可以在不同的附接位置耦合到屏幕。 一个或多个传感器可以用作传感器以提供用于操作控制的反馈。

公开(公告)号：US06427017B1

公开(公告)日：2002-07-30

申请号：US09439347

申请日：1999-11-15

Applicant: Nozomi Toki

Inventor： Nozomi Toki

IPC: H04R2500

CPC classification number: G02F1/133308 ,  B06B1/0688 ,  B06B1/0692 ,  B06B2201/56 ,  B06B2201/70 ,  G02F2001/133394 ,  H04M1/03 ,  H04N5/642 ,  H04R1/025 ,  H04R17/00 ,  H04R2499/11 ,  H04R2499/15

Abstract: Disclosed is a piezoelectric diaphragm with a transparent piezoelectric member and a transparent electrode. Also disclosed is a portable electronic device that has a display means to display an image and a piezoelectric speaker having a transparent piezoelectric member and a transparent electrode. In this portable electronic device, the piezoelectric speaker is disposed in front of the display means.

Abstract translation: 公开了具有透明压电元件和透明电极的压电振动膜。 还公开了具有显示图像的显示装置和具有透明压电元件和透明电极的压电扬声器的便携式电子设备。 在这种便携式电子设备中，压电扬声器设置在显示装置的前面。

公开(公告)号：US20020063563A1

公开(公告)日：2002-05-30

申请号：US09725398

申请日：2000-11-29

Inventor： Alan J. Werner JR.

IPC: G01R029/12

CPC classification number: B06B1/0261 ,  B06B2201/55 ,  B06B2201/70

Abstract: Method and apparatus for modulating the vibrations of an object with a constant amplitude has a sensor, e.g., a piezoelectric transducer, for sensing the vibrations. A light source, e.g., an LED, receives the sensed signal and illuminates a light dependent resistor (LRD). In turn, a control circuit controls the vibration amplitude in accordance with the LDR resistance. A full wave bridge rectifier can be used between the sensor and the LED.

Abstract translation: 用于以恒定幅度调制物体的振动的方法和装置具有用于感测振动的传感器，例如压电换能器。 光源（例如LED）接收感测到的信号并照亮光依赖电阻（LRD）。 依次控制电路根据LDR电阻来控制振幅。 可以在传感器和LED之间使用全波桥式整流器。

公开(公告)号：US5900690A

公开(公告)日：1999-05-04

申请号：US671266

申请日：1996-06-26

Applicant: Lamar Heath Gipson ,  Bernard Cohen ,  Lee Kirby Jameson

Inventor： Lamar Heath Gipson ,  Bernard Cohen ,  Lee Kirby Jameson

IPC: B06B1/02 ,  H03K3/023 ,  H01L41/09

CPC classification number: B06B1/0246 ,  B06B2201/70

Abstract: An apparatus and method for controlling an ultrasonic transducer preferably including a signal generator circuit, a signal sensing circuit, a modulator circuit, and a bias circuit. The signal generator circuit provides a pulsed drive signal to the ultrasonic transducer. The signal sensing circuit senses the voltage and current of the drive signal. The modulator circuit provides a frequency control signal and an energy control signal to the signal generator circuit corresponding to a detected phase difference between the sensed voltage and the sensed current of the drive signal. The frequency control signal and energy control signal operate to adjust the frequency and energy level, respectively, of the drive signal.Within the transducer, a movable element in contact with a liquid is preferably positioned corresponding to the level of a dc bias signal provided by the bias circuit. By adjusting the level of the dc bias signal, the flow rate of the liquid is adjusted. By applying the drive signal to the transducer, the viscosity of the liquid is adjusted which establishes a second flow rate of the liquid. When the frequency and energy level of the drive signal are changed, a third flow rate of the liquid is established.

Abstract translation: 一种用于控制超声换能器的装置和方法，优选地包括信号发生器电路，信号感测电路，调制器电路和偏置电路。 信号发生器电路向超声换能器提供脉冲驱动信号。 信号感测电路检测驱动信号的电压和电流。 调制器电路向信号发生器电路提供频率控制信号和能量控制信号，该信号发生器电路对应于检测到的电压和感测到的驱动信号的电流之间的相位差。 频率控制信号和能量控制信号分别用于调节驱动信号的频率和能级。 在换能器内，与液体接触的可移动元件优选地对应于由偏置电路提供的直流偏置信号的电平而定位。 通过调节直流偏置信号的电平，调节液体的流量。 通过将驱动信号应用于换能器，调节液体的粘度，其建立液体的第二流量。 当驱动信号的频率和能量水平改变时，建立液体的第三流量。

公开(公告)号：US5804733A

公开(公告)日：1998-09-08

申请号：US620676

申请日：1996-03-26

Applicant: Yutaka Kurita ,  Yasushi Muragishi ,  Hitoshi Yasuda

Inventor： Yutaka Kurita ,  Yasushi Muragishi ,  Hitoshi Yasuda

IPC: B06B1/02 ,  B06B3/00 ,  G01M7/00

CPC classification number: B06B1/0246 ,  B06B3/00 ,  B06B2201/53 ,  B06B2201/70

Abstract: An elliptical vibratory apparatus includes first and second controllers; first and second power amplifiers for amplifying outputs of the first and second controllers; first and second vibratory exciters receiving outputs of the first and second power amplifiers for generating first and second vibrational forces in first and second directions; first and second vibrational systems of an elliptical vibratory machine receiving the first and second vibrational forces; and detectors of first and second vibrational displacements for detecting vibrational displacements of a movable part of the elliptical vibratory machine in the first and second direction. A closed loop is formed by the first and second controllers, the first and second power amplifiers, the first and second vibratory exciters, the first and second vibrational systems, and the detectors of the first and second vibrational displacements. The output of the detector of the second vibrational displacement is negatively fed-back to the first controller in the closed loop. Shift angles of the first and second phase shifters are so predetermined that there is a phase difference of 180 degrees between the output terminal of the detector of the second vibrational displacement and the input terminal of the first controller, when these terminals are cut off from each other, and a predetermined phase difference can be obtained between the vibrational displacements of the first and second vibratory systems for the optimum condition of the elliptical vibratory machine. The first vibratory system is self-excitedly vibrated at its resonant frequency and the second vibratory system is self-excitedly vibrated.

Abstract translation: 椭圆振动装置包括第一和第二控制器; 第一和第二功率放大器，用于放大第一和第二控制器的输出; 第一和第二振动激励器接收第一和第二功率放大器的输出，用于在第一和第二方向产生第一和第二振动力; 接收第一和第二振动的椭圆振动机的第一和第二振动系统; 以及第一和第二振动位移检测器，用于检测椭圆振动机在第一和第二方向的可移动部分的振动位移。 第一和第二控制器，第一和第二功率放大器，第一和第二振动激励器，第一和第二振动系统以及第一和第二振动位移的检测器形成闭环。 第二振动位移检测器的输出在闭环中负反馈给第一控制器。 第一移相器和第二移相器的移位角是如此预定的，当这些端子被切断时，在第二振动位移检测器的输出端与第一控制器的输入端之间存在180度的相位差 并且在椭圆振动机的最佳状态下，可以在第一和第二振动系统的振动位移之间获得预定的相位差。 第一振动系统以其共振频率自激振动，第二振动系统自激振动。

公开(公告)号：US5025273A

公开(公告)日：1991-06-18

申请号：US516647

申请日：1990-04-30

Applicant: John H. Bowers

Inventor： John H. Bowers

IPC: B41J2/415 ,  B06B1/02 ,  G01S7/282 ,  G01S7/52 ,  H03K17/00 ,  H03K17/695 ,  H04N1/40

CPC classification number: G01S7/282 ,  B06B1/0238 ,  G01S7/52017 ,  H04N1/40025 ,  B06B2201/70

Abstract: In order to drive the RF lines (electrodes) of an ion projection printing head or cartridge, driver circuits are provided which generate high voltage, radio frequency signals with rapid envelope rise and fall times so that dots of varying density in accordance with a gray scale may be formed on a rapidly moving dielectric surface. A separate RF driver circuit for each line includes an active switching device, preferably an FET. A series resonant circuit is connected across the active device. This circuit is provided by an inductor connected in series with the effective capacitance presented by the RF electrode of the ion projection head which is being driven. The inductor and effective capacitance defines a series resonant circuit. The active device is driven via a pulse amplifier by pulses repetitive at the RF rate and the active device is connected to a power supply, preferably through a parallel resonant circuit which broadens the frequency response characteristic (flattens the effective resonance peak, so that the current switched through the device is of sufficient magnitude to develop a peak-to-peak voltage across the effective capacitance of the RF electrode of the head to provide sufficiently high peak-to-peak voltage RF cycles. These cycles may be gated to develop ion dots on the dielectric surface having the required gray scale gradiation; the magnitude of the ion charge and the gray scale depending upon the number of cycles of the RF drive voltage used while projecting ions onto the dielectric surface.

Abstract translation: 为了驱动离子投影打印头或盒的RF线（电极），提供驱动电路，其产生具有快速包络上升和下降时间的高电压，射频信号，使得根据灰度级变化的密度点 可以形成在快速移动的电介质表面上。 用于每条线路的单独RF驱动器电路包括有源开关器件，优选地是FET。 串联谐振电路跨过有源器件连接。 该电路由与所驱动的离子投射头的RF电极提供的有效电容串联连接的电感器提供。 电感和有效电容定义了串联谐振电路。 有源器件通过脉冲放大器通过以RF速率重复的脉冲驱动，并且有源器件优选地通过并联谐振电路连接到电源，该并联谐振电路拓宽了频率响应特性（使有效谐振峰值平坦化，使得电流 通过器件切换是足够大的，以在头部的RF电极的有效电容之间产生峰 - 峰电压，以提供足够高的峰峰值电压RF周期，这些周期可以选通以形成离子点 在具有所需灰阶梯度的电介质表面上;离子电荷的大小和灰度取决于在将离子投影到电介质表面上时所用的RF驱动电压的周期数。

公开(公告)号：US4568995A

公开(公告)日：1986-02-04

申请号：US133173

申请日：1980-03-24

Applicant: Christopher B. Mushenski

Inventor： Christopher B. Mushenski

IPC: B06B1/02 ,  B60Q5/00 ,  H02H9/04

CPC classification number: B60Q5/00 ,  B06B1/0207 ,  B06B2201/70

Abstract: In a military vehicle having an electric horn actuator circuit, the improent comprising the addition of a capacitor in the circuit at a location between a brush and contact ring assembly disposed within the vehicle steering column. The capacitor is electrically located in close connection to the brush-contact ring interface to respond effectively to voltage/current surges initiated at the brush-contact ring interface. The capacitor can be installed in existing vehicles in a retrofit operation.

Abstract translation: 在具有电喇叭致动器电路的军用车辆中，改进包括在设置在车辆转向柱内的电刷和接触环组件之间的位置处在电路中添加电容器。 电容器电气位置紧密地连接到电刷接触环接口，以有效响应在电刷接触环接口处引发的电压/电流浪涌。 电容器可以安装在现有的车辆中进行改造操作。