Apparatus for actively reducing noise for interior of enclosed space
    1.
    发明授权
    Apparatus for actively reducing noise for interior of enclosed space 失效
    用于积极减少封闭空间内部噪声的装置

    公开(公告)号:US5337365A

    公开(公告)日:1994-08-09

    申请号:US935100

    申请日:1992-08-27

    IPC分类号: B64C1/40 G10K11/178 A61F11/06

    摘要: An apparatus for reducing noise for an interior of enclosed space, e.g., a vehicular compartment using an FIR adaptive digital filter is disclosed in which a control circuit is provided which outputs drive signals to a plurality of loud speakers which generate control sounds to interfer with a noise sound propagated in the interior so that a performance function including terms of residual noise signals output from residual noise signal detecting microphones and drive signals to the loud speakers is minimized and contributivity of the drive signals to the performance function is changed according to an occurrence of divergence in the noise reducing apparatus.

    摘要翻译: 公开了一种用于减少封闭空间内部的噪声的设备,例如使用FIR自适应数字滤波器的车厢,其中提供了一种控制电路,其向多个扬声器输出驱动信号,该扬声器产生控制声音以干扰 噪声在内部传播,使得包括从剩余噪声信号检测麦克风输出的残留噪声信号的项目和对扬声器的驱动信号的性能函数最小化,并且驱动信号对性能函数的贡献度根据 降噪装置发散。

    Electronic noise attenuation method and apparatus for use in effecting
such method
    2.
    发明授权
    Electronic noise attenuation method and apparatus for use in effecting such method 失效
    用于实现这种方法的电子噪声衰减方法和装置

    公开(公告)号:US5295192A

    公开(公告)日:1994-03-15

    申请号:US957068

    申请日:1992-10-06

    摘要: A method for electrically attenuating a noise in an area for a sound wave to be propagatable in a three dimensional direction by making up a drive signal from the information on the noise and previously given filter coefficients by use of an adaptive digital filter and then generating an additional sound wave in accordance with the drive signal for cancellation of the noise. In the electric noise attenuation method, there are provided in a given region for noise attenuation, first and second error sensor groups for detecting an interference sound wave produced between the noise and additional sound wave, at a sampling time, a filter coefficient is calculated based on the information relating to the first error sensor group, at the next sampling time, another filter coefficient is calculated based on the information relating to the second error sensor group, and these operations are repeatedly executed sequentially for each error sensor to thereby update the filter coefficient of the adaptive digital filter.

    摘要翻译: 一种用于通过使用自适应数字滤波器通过从关于噪声的信息和先前给定的滤波器系数组成驱动信号来电声衰减在三维方向上可传播的声波区域中的噪声的方法, 附加声波根据驱动信号消除噪声。 在电噪声衰减方法中,在给定的噪声衰减区域中设置用于检测在噪声和附加声波之间产生的干扰声波的第一和第二误差传感器组,在采样时间基础上计算滤波器系数 关于与第一误差传感器组有关的信息,在下一个采样时间,基于与第二误差传感器组相关的信息计算另一个滤波器系数,并且对于每个误差传感器重复执行这些操作,从而更新滤波器 自适应数字滤波器的系数。

    Swash plate type compressor with silencer structure
    4.
    发明授权
    Swash plate type compressor with silencer structure 失效
    具有消声器结构的斜盘式压缩机

    公开(公告)号:US4407638A

    公开(公告)日:1983-10-04

    申请号:US229063

    申请日:1981-01-28

    IPC分类号: F04B27/08 F04B27/10 F04B39/00

    CPC分类号: F04B39/0055 F04B27/1036

    摘要: A swash plate type compressor including a partition plate mounted in a side cover for axially partitioning the interior of the side cover into two portions. One of said two portions interposed between the partition plate and a valve plate functions as a high pressure chamber, and the other portion interposed between the partition wall and a bottom wall surface of the cover functions as a silencing chamber. A compressed refrigerant discharged from cylinder bores and introduced into the high pressure chamber is discharged from the high pressure chamber through the partition plate into the silencing chamber where pulsations of pressure are removed from the refrigerant.By directing the compressed refrigerant discharged from the high pressure chamber toward the center of the silencing chamber and by drawing off the refrigerant from the center of the silencing chamber and introducing same into the refrigerant cycle, increased effects can be achieved in silencing noises.

    摘要翻译: 一种斜盘式压缩机,包括安装在侧盖中的分隔板,用于将侧盖的内部轴向分隔成两部分。 插入在隔板和阀板之间的所述两部分之一用作高压室,并且插入在隔壁和盖的底壁表面之间的另一部分用作消音室。 从气缸孔排出并被引入高压室的压缩制冷剂通过分隔板从高压室排出到从制冷剂中除去压力脉动的消音室。 通过将从高压室排出的压缩制冷剂引导到消音室的中心,并且通过从消音室的中心抽出制冷剂并将其引入制冷剂循环中,可以在消音噪声中实现增加的效果。

    Remote keyless entry system
    5.
    发明授权
    Remote keyless entry system 失效
    遥控无钥匙进入系统

    公开(公告)号:US07352274B2

    公开(公告)日:2008-04-01

    申请号:US10601664

    申请日:2003-06-24

    摘要: An easy-to-use remote keyless entry system is provided. To execute 2-way long distance communication at a low output and within a short time, transmission is effected while a data rate of a terminal board is changed. To reduce battery consumption in a system capable of setting an automatic output mode, the operation mode is shifted to the automatic output mode when an automatic output mode button is pushed or when a door lock release button of an operation button, etc, is kept pushed for a predetermined time. To execute a reserved operation at a reserved time, a storage circuit for storing reservation is provided to the terminal board.

    摘要翻译: 提供易于使用的远程无钥匙进入系统。 为了在低输出和短时间内执行双向长途通信,在终端板的数据速率改变的情况下进行传输。 为了减少能够设定自动输出模式的系统的电池消耗,当按下自动输出模式按钮或者当按下操作按钮等的门锁释放按钮时,操作模式转换到自动输出模式 预定时间。 为了在保留时间执行保留操作,向终端板提供存储预约的存储电路。

    Remote keyless entry system
    6.
    发明授权
    Remote keyless entry system 失效
    遥控无钥匙进入系统

    公开(公告)号:US06624758B1

    公开(公告)日:2003-09-23

    申请号:US09351130

    申请日:1999-07-12

    IPC分类号: G08C1900

    摘要: An easy-to-use remote keyless entry system is provided. To execute 2-way long distance communication at a low output and within a short time, transmission is effected while a data rate of a terminal board is changed. To reduce battery consumption in a system capable of setting an automatic output mode, the operation mode is shifted to the automatic output mode when an automatic output mode button is pushed or when a door lock release button of an operation button, etc, is kept pushed for a predetermined time. To execute a reserved operation at a reserved time, a storage circuit for storing reservation is provided to the terminal board.

    摘要翻译: 提供易于使用的远程无钥匙进入系统。 为了在低输出和短时间内执行双向长途通信,在终端板的数据速率改变的情况下进行传输。 为了减少能够设定自动输出模式的系统的电池消耗,当按下自动输出模式按钮或者当按下操作按钮等的门锁释放按钮时,操作模式转换到自动输出模式 预定时间。 为了在保留时间执行保留操作,向终端板提供存储预约的存储电路。

    Capacity control device for compressor
    7.
    发明授权
    Capacity control device for compressor 失效
    压缩机容量控制装置

    公开(公告)号:US4619595A

    公开(公告)日:1986-10-28

    申请号:US600903

    申请日:1984-04-16

    CPC分类号: F04C29/12 F04C28/18

    摘要: A capacity control device for a compressor used with an air conditioning system for an automotive vehicle and driven by an engine of the automotive vehicle, including flow resistance portions provided in a refrigerant inlet passage and capable of reducing the flow rate of a refrigerant flowing into working chambers of the compressor as the rotational speed of the compressor (or the engine speed) rises, to thereby reduce the volumetric efficiency of the compressor in a high engine speed range.

    摘要翻译: 一种用于与机动车辆的空调系统一起使用并由机动车辆的发动机驱动的压缩机的容量控制装置,包括设置在制冷剂入口通道中的流动阻力部分,并且能够降低流入工作的制冷剂的流量 随着压缩机的转速(或发动机转速),压缩机的室升高,从而在高发动机转速范围内降低压缩机的容积效率。

    Car on-board radar axis adjusting method
    8.
    发明授权
    Car on-board radar axis adjusting method 失效
    车载雷达轴调整方法

    公开(公告)号:US6020844A

    公开(公告)日:2000-02-01

    申请号:US225475

    申请日:1999-01-06

    摘要: In a method of adjusting the axis of a car on-board radar, especially, a car on-board mono-pulse radar having the function of transmitting radio waves, light or ultrasonic waves, a car axis and an offset axis are set and the mount angle of an antenna offset-mounted on the offset axis can be adjusted with high precision and with ease through a reduced number of process steps. In the method, at least two points are set on the car, at least two isosceles triangles having a common base defined by a line connecting the setting points and sides of different lengths are drawn, a line connecting vertexes on the same plane of the obtained isosceles triangles and an extension of that line are determined as the car axis, the radar antenna is mounted on the car at an offset position which is apart from the car axis by a constant distance in the horizontal direction, a straight line parallel to the car axis and passing through the offset position is determined as the offset axis, a reflector is disposed in a direction at a constant azimuth angle as viewed from the offset position of the antenna, and the reflector is used as a detection target of the radar to adjust the mount angle of the radar antenna such that an azimuth angle detection value of the reflector detected by the radar equals a setting value of the azimuth angle.

    摘要翻译: 在调整车载雷达的轴线的方法中,特别地,设置具有发射无线电波,光或超声波,汽车轴和偏移轴的功能的车载单脉冲雷达, 偏移安装在偏移轴上的天线的安装角度可以通过减少数量的工艺步骤以高精度和容易地调节。 在该方法中,在轿厢上设置至少两个点,至少两个具有由连接不同长度的设定点和侧面的线限定的公共基座的等腰三角形,连接顶点在所获得的相同平面上的线 将等腰三角形和该线的延伸线确定为轿厢轴线,雷达天线以与水平方向一定距离的偏离位置安装在轿厢上,平行于轿厢的直线 被确定为偏移位置时,从天线的偏移位置观察,将反射器设置在恒定方位角的方向上,并且将反射器用作雷达的检测对象以进行调整 雷达天线的安装角度使得由雷达检测的反射器的方位角检测值等于方位角的设定值。

    Noise reduction apparatus
    9.
    发明授权
    Noise reduction apparatus 失效
    降噪装置

    公开(公告)号:US5455779A

    公开(公告)日:1995-10-03

    申请号:US369262

    申请日:1995-01-05

    IPC分类号: G10K11/178 H03F1/26 H04R3/02

    摘要: When noise is caused by the mechanical vibration propagated from the engine, the microprocessor calculates from the vibration frequency of the engine the secondary sound signal which is in antiphase with the noise and which is thus able to cancel out the noise, and supplies it to the loudspeaker which then emanates the secondary sound according to this signal. At this time,the divergence detection circuit monitors the incoming secondary sound signal, and when the secondary sound signal is remarkably increased, it decides that the noise is increased, and automatically stops the secondary sound output from the loudspeaker. Therefore, it can be prevented that the noise is reversely increased by the secondary sound.

    摘要翻译: 当噪声是由发动机传播的机械振动引起的,微处理器根据发动机的振动频率计算与噪声相反的二次声音信号,从而能够消除噪声,并将其提供给 扬声器,然后根据该信号发出次声。 此时,发散检测电路监视输入的二次声音信号,并且当二次声音信号显着增加时,判定噪声增加,并且自动停止从扬声器输出的二次声音。 因此,可以防止由二次声音反向增加噪声。