利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.027 秒)

    System for diagnosing EGR valve, actuator and sensor related failure conditions
    1.
    发明授权
    System for diagnosing EGR valve, actuator and sensor related failure conditions 有权
    用于诊断EGR阀，执行器和传感器相关故障条件的系统

    公开(公告)号：US06837226B2

    公开(公告)日：2005-01-04

    申请号：US09774524

    申请日：2001-01-31

    申请人： Yue Yun Wang ,  Xiaoqui Li ,  Mark R. Stepper ,  Chang Yang

    发明人： Yue Yun Wang ,  Xiaoqui Li ,  Mark R. Stepper ,  Chang Yang

    IPC分类号： F02M25/07 ,  F02B47/08

    CPC分类号： F02M26/48 ,  F02B29/0406 ,  F02M26/23 ,  F02M26/47 ,  F02M26/49

    摘要： An EGR fault/failure determination system for an internal combustion engine is operable to monitor a number of EGR system operational parameters and diagnose various EGR-related fault and failure statuses therefrom. For example, the system is operable to determine a number of EGR system-related fault and failure conditions by monitoring measured and command EGR position signals to determine EGR valve controller functionality, to monitor response times between fully open and closed EGR valve positions by comparing measured response times to a calibratable response time value, and to monitor in-range EGR position failures associated with fully closed and fully opened EGR valve position values. The system further includes a Kalman filter-based fault/failure isolation feature operable to isolate and identify one or more sources of EGR valve-related faults/failures.

    Clock down sensor
    3.
    发明申请
    Clock down sensor 失效

    公开(公告)号：US20050052205A1

    公开(公告)日：2005-03-10

    申请号：US10717581

    申请日：2003-11-21

    申请人： Chang Yang

    发明人： Chang Yang

    IPC分类号： G06F1/04 ,  H03K5/19

    CPC分类号： H03K5/19 ,  G06F1/04

    摘要： A clock down sensor mainly comprises a converter and a low-pass filter. The converter is used to convert an input signal from a PECL (Positive Emitter Coupling Logic) signal to a TTL (Transistor Transistor Logic) signal, the low pass filter is used to obtain a DC (Direct Current) level of the TTL signal. Thereby, the sensor can judge whether the clock signal is terminated according to the potential of the output signal in order to emit a warning so that a breakdown elimination inquiry can be done or automatic breakdown elimination can be processed earlier.

    Device and method for generating chaotic signal
    4.
    发明申请
    Device and method for generating chaotic signal 有权
    用于产生混沌信号的装置和方法

    公开(公告)号：US20080069349A1

    公开(公告)日：2008-03-20

    申请号：US11889326

    申请日：2007-08-10

    申请人： Yu Kim ,  No Myung ,  Jeong Moon ,  Moo Jeong ,  Chang Lee ,  Chang Yang ,  Kwang Lee ,  Sang Park

    发明人： Yu Kim ,  No Myung ,  Jeong Moon ,  Moo Jeong ,  Chang Lee ,  Chang Yang ,  Kwang Lee ,  Sang Park

    IPC分类号： H04L9/22

    CPC分类号： H03K3/84 ,  H04B1/69 ,  H04B1/71632 ,  H04B1/7174 ,  H04L27/04

    摘要： Provided is a device for generating a chaotic signal comprising a PN signal generator that is composed of a digital logic circuit and generates a digital pseudo random signal with a predetermined frequency; a voltage control that generates a clock signal with a predetermined frequency; a mixer that mixes the pseudo random signal and the clock signal so as to generate a chaotic signal to output; and a band-pass filter that filters the chaotic signal, output from the mixer, into a chaotic signal of a desired band and then outputs the filtered signal.

    摘要翻译： 提供一种用于产生混沌信号的装置，包括由数字逻辑电路组成的PN信号发生器，并产生具有预定频率的数字伪随机信号; 产生具有预定频率的时钟信号的电压控制; 混合器，混合伪随机信号和时钟信号，以产生混沌信号输出; 以及带通滤波器，其将从混频器输出的混沌信号滤波成期望频带的混沌信号，然后输出滤波后的信号。

    TRANSMITTER AND TRANSMITTING METHOD OF CODE DIVISION MULTIPLEXING WIRELESS COMMUNICATION SYSTEM USING ON-OFF KEYING MODULATION SCHEME
    6.
    发明申请
    TRANSMITTER AND TRANSMITTING METHOD OF CODE DIVISION MULTIPLEXING WIRELESS COMMUNICATION SYSTEM USING ON-OFF KEYING MODULATION SCHEME 审中-公开
    使用开关键控调制方案的代码段多路复用无线通信系统的发送和发送方法

    公开(公告)号：US20070133495A1

    公开(公告)日：2007-06-14

    申请号：US11555117

    申请日：2006-10-31

    申请人： Sang Lee ,  Chang Yang ,  Jeong Lee ,  Wan Yang

    发明人： Sang Lee ,  Chang Yang ,  Jeong Lee ,  Wan Yang

    IPC分类号： H04B7/216

    CPC分类号： H04B1/707 ,  H04B1/7176 ,  H04J13/10 ,  H04L1/0065

    摘要： A transmitter and a transmitting method in a code division multiplexing (CDM) wireless communication system are provided. The transmitter includes a DC offset unit, a Barker code generating unit, a multiplier, a unipolar code generating unit, a Kronecker product unit, and a modulator. The DC offset unit transforms digital transmitting data to bipolar data, and the Barker code generating unit generates a Barker code. The multiplier multiplies the bipolar data with the Barker code and outputting the multiplying result, and the unipolar code generating unit generates a predetermined unipolar code. The Kronecker product unit multiplies the multiplying result from the multiplier and the unipolar code based on the Kronecker product, and outputs the result thereof, and the modulator modulates the output of the Kronecker produce unit through the On-Off keying modulation scheme.

    摘要翻译： 提供了一种码分复用（CDM）无线通信系统中的发射机和发射方法。 发射机包括DC偏移单元，Barker码产生单元，乘法器，单极码产生单元，Kronecker乘积单元和调制器。 DC偏移单元将数字发送数据变换为双极性数据，而Barker码生成单元生成Barker码。 乘法器将双极数据与巴克码相乘并输出乘法结果，单极码产生单元产生预定的单极性码。 Kronecker乘积单元乘以乘法器的乘法结果和基于Kronecker乘积的单极码，并输出其结果，并且调制器通过开 - 关键控调制方案调制Kronecker产生单元的输出。