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    Circuit for suppression of short-lived noise-phenomena in a digital audio signal
    31.
    发明授权
    Circuit for suppression of short-lived noise-phenomena in a digital audio signal 失效
    用于抑制数字音频信号中短暂的噪声现象的电路

    公开(公告)号：US5594799A

    公开(公告)日：1997-01-14

    申请号：US218651

    申请日：1994-03-28

    Applicant: Matthias Herrmann

    Inventor： Matthias Herrmann

    IPC: H04B1/10 ,  H03G3/00 ,  H04B1/16 ,  H04H20/26 ,  H04H5/00

    CPC classification number: H04H20/26 ,  H03G3/00 ,  H04H2201/13

    Abstract: In a circuit for suppressing short-lived noise phenomena in a digital audio signal, in particular during a temporary test reception of another transmitter, the audio signal is multiplied by a factor which, prior to the appearance of the noise phenomenon, is brought from a maximum value to a minimum value in accordance with a predetermined time function, and at the end of the noise phenomenon, is returned to a maximum value. The invention has special application to the Radio Data System defined by the European Broadcasting Union, and the testing of "Alternative Frequencies" in that system.

    Abstract translation: 在用于抑制数字音频信号中的短暂噪声现象的电路中，特别是在另一个发射机的临时测试接收期间，将音频信号乘以在出现噪声现象之前，从 根据预定时间函数的最大值到最小值，并且在噪声现象结束时，返回到最大值。 本发明对由欧洲广播联盟定义的无线电数据系统和该系统中的“替代频率”的测试具有特殊应用。

    Injection valve, method for its production, and apparatus for performing the method
    33.
    发明授权
    Injection valve, method for its production, and apparatus for performing the method 有权
    喷射阀，其制造方法以及执行该方法的装置

    公开(公告)号：US08595933B2

    公开(公告)日：2013-12-03

    申请号：US12666190

    申请日：2008-06-17

    Applicant: Bernhard Zeiss ,  Wilhelm Christ ,  Ralf Kuebler ,  Alfred Hoch ,  Matthias Herrmann ,  Lars Ulrich

    Inventor： Bernhard Zeiss ,  Wilhelm Christ ,  Ralf Kuebler ,  Alfred Hoch ,  Matthias Herrmann ,  Lars Ulrich

    IPC: B21K1/24

    CPC classification number: F02M61/168 ,  B21K1/24 ,  C21D1/10 ,  C21D1/18 ,  C21D1/25 ,  F02M61/18 ,  F02M2200/02 ,  F02M2200/9061 ,  Y02P10/253 ,  Y10T29/49405 ,  Y10T29/49409

    Abstract: The invention relates to a method for producing an injection valve for liquids, preferably an injection valve for injecting fuel into a combustion chamber of an internal combustion engine. The injection valve has a valve body, with a valve seat which is formed therein, and a valve needle which interacts with the valve seat in order to open and close at least one injection opening. The injection valve is produced by means of the following method steps: producing the valve body from steel, hardening the valve body, annealing a partial region of the valve body at an annealing temperature. The device for carrying out the method according to the invention has an inductive annealing generator which generates a suitable alternating current for operating a coil, in the magnetic field of which coil the valve body can be heated for annealing.

    Abstract translation: 本发明涉及一种用于生产用于液体的喷射阀的方法，优选地是用于将燃料喷射到内燃机的燃烧室中的喷射阀。 喷射阀具有形成有阀座的阀体和与阀座相互作用以打开和关闭至少一个喷射开口的阀针。 注射阀通过以下方法步骤制造：从钢制造阀体，硬化阀体，在退火温度下退火阀体的局部区域。 用于执行根据本发明的方法的装置具有感应退火发生器，其产生用于操作线圈的合适的交流电流，在该磁体的磁场中，阀体可以被加热用于退火。

    Circuit arrangement for deriving a quality signal dependent on the quality of a received multiplex signal
    39.
    发明授权
    Circuit arrangement for deriving a quality signal dependent on the quality of a received multiplex signal 失效
    用于根据所接收的多路复用信号的质量导出质量信号的电路装置

    公开(公告)号：US5696830A

    公开(公告)日：1997-12-09

    申请号：US522312

    申请日：1995-08-25

    Applicant: Djahanyar Chahabadi ,  Matthias Herrmann ,  Lothar Vogt ,  Jurgen Kaesser

    Inventor： Djahanyar Chahabadi ,  Matthias Herrmann ,  Lothar Vogt ,  Jurgen Kaesser

    IPC: H03H17/04 ,  H03H17/02 ,  H04B1/10 ,  H04B1/16 ,  H04B1/26 ,  H04B1/30 ,  H04B1/64 ,  H04H1/00 ,  H04H20/12 ,  H04H40/45 ,  H04H5/00

    CPC classification number: H04H20/12 ,  H04H40/45

    Abstract: The method for obtaining the quality signal includes multiplying a digital multiplex signal (MPX) by respective reference carrier signals mutually phase shifted by 90.degree. to each other, but otherwise equal, to form a pair of mixed signals (Imr1,Imr2); multiplying the mixed signals (Imr1, Imr2) by respective correction signals (G38c,G38s) to form a pair of corrected mixed signal (Ims1,Ims2); separately multiplying the digital multiplex signal (MPX) by each of two reference pilot signals mutually shifted in phase by 90.degree. relative to each other to form respective derived signals useful for obtaining said correction signals (G38c,G38s); adding said corrected mixed signals (Ims1,Ims2) to each other; multiplying said mixed signals (Imr1,Imr2) by the respective correction signals (G38s,G38c) to form a pair of product signals; subtracting these product signals from each other to form a subtraction result and low-pass filtering the subtraction result to obtain a low-pass-filtered resultant signal from which the quality signal is derived.

    Abstract translation: PCT No.PCT / DE94 / 00320 Sec。 371日期1995年8月25日 102（e）日期1995年8月25日PCT 1994年3月22日PCT公布。 出版物WO94 / 22228 日期1994年9月29日用于获得质量信号的方法包括将数字多路复用信号（MPX）乘以相互相移90°的相应参考载波信号，否则相等，以形成一对混合信号（Imr1， Imr2）; 将混合信号（Imr1，Imr2）乘以各个校正信号（G38c，G38s）以形成一对校正混合信号（Ims1，Ims2）; 将数字多路复用信号（MPX）分别乘以相互相移90°的两个参考导频信号中的每一个，以形成用于获得所述校正信号（G38c，G38s）的相应导出信号。 将所述校正后的混合信号（Ims1，Ims2）相加; 将所述混合信号（Imr1，Imr2）乘以各个校正信号（G38s，G38c）以形成一对乘积信号; 相互减去这些乘积信号以形成减法结果，并对相减结果进行低通滤波，以获得从其导出质量信号的低通滤波结果信号。

    Circuit arrangement for deriving a signal indicating noise in a received stereo multiplex signal
    40.
    发明授权
    Circuit arrangement for deriving a signal indicating noise in a received stereo multiplex signal 失效
    用于导出指示接收的立体声多路复用信号中的噪声的信号的电路装置

    公开(公告)号：US5606619A

    公开(公告)日：1997-02-25

    申请号：US343416

    申请日：1995-02-13

    Applicant: Djahanyar Chahabadi ,  Matthias Herrmann ,  Lothar Vogt ,  Juergen Kaesser

    Inventor： Djahanyar Chahabadi ,  Matthias Herrmann ,  Lothar Vogt ,  Juergen Kaesser

    IPC: H03H17/04 ,  H03H17/02 ,  H04B1/10 ,  H04B1/16 ,  H04B1/26 ,  H04B1/64 ,  H04H20/88 ,  H04H5/00

    CPC classification number: H04B1/1661 ,  H04B1/1027

    Abstract: A circuit arrangement for deriving the signal indicating noise in a received stereo multiplex signal, wherein the stereo multiplex signal is present as a digital signal with a first sampling rate that is substantially higher than twice the upper limit of the useful frequency range of the stereo multiplex signal, and the received stereo multiplex signal is passed through a low-pass filter. The low-pass filtered signal and the received stereo multiplex signal are subjected to decimation to a second sampling rate, which is higher than twice the upper limit of the useful frequency range of the stereo multiplex signal. The two stereo multiplex signals with the second sampling rate are subtracted from one another.

    Abstract translation: PCT No.PCT / DE94 / 00322 Sec。 371日期1995年2月13日 102（e）日期1995年2月13日PCT 1994年3月22日PCT公布。 公开号WO94 / 22230 日期1994年9月29日一种用于导出在接收的立体声多路复用信号中指示噪声的信号的电路装置，其中立体声多路复用信号作为数字信号存在，其具有明显高于有用频率上限的两倍的第一采样率 立体声多路复用信号的范围和接收的立体声多路复用信号通过低通滤波器。 低通滤波信号和接收的立体声多路复用信号被抽取到高于立体声多路复用信号的有用频率范围的两倍的第二采样率。 具有第二采样率的两个立体声多路复用信号彼此相减。

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