Remote diagnosis and central fault evaluation method of decentralized electric devices, and decentralized electronic device
    23.
    发明授权
    Remote diagnosis and central fault evaluation method of decentralized electric devices, and decentralized electronic device 有权
    分散式电气设备的远程诊断和中心故障评估方法,以及分散式电子设备

    公开(公告)号:US07110757B2

    公开(公告)日:2006-09-19

    申请号:US10343367

    申请日:2001-05-05

    CPC classification number: H04W24/00 G07C5/008

    Abstract: A method for remote diagnosis and central error evaluation of decentralized electronic devices (1) with an integrated telecommunications device (3) includes the steps of storing information about malfunctions of a decentralized electronic device (1) in a diagnosis memory (6) of the electronic device (1); making a telecommunications connection of the electronic device (1) with a central error evaluation station (7), controlled by the user of the electronic device (1); transmitting error data from the diagnosis memory (6) to the central error evaluation station (7); and evaluating the error data in the central error evaluation station (7).

    Abstract translation: 一种用于具有集成电信设备(3)的分散电子设备(1)的远程诊断和中心错误评估的方法包括以下步骤:将关于分散电子设备(1)的故障的信息存储在电子诊断存储器(6)中 装置(1); 将所述电子设备(1)的电信连接与由所述电子设备(1)的用户控制的中央错误评估站(7)进行通信; 将错误数据从诊断存储器(6)发送到中央错误评估站(7); 并评估中心误差评估站(7)中的误差数据。

    Radio receiver station-seeker stop-signal generator
    24.
    发明授权
    Radio receiver station-seeker stop-signal generator 失效
    无线电接收站 - 寻线者停止信号发生器

    公开(公告)号:US5506906A

    公开(公告)日:1996-04-09

    申请号:US218660

    申请日:1994-03-28

    CPC classification number: H03J1/0091

    Abstract: Radio receivers which scan through a predetermined band of the radio spectrum, in a station-seeking mode, must independently detect whether the currently tuned frequency is the central frequency of the transmitting station and whether this transmitter provides a signal whose strength is sufficient, i.e. whose strength exceeds a predetermined threshold value. Once these two conditions are satisfied, the radio generates a "stop" signal which terminates the station-seeking mode, i.e. keeps the tuning circuit set to the frequency which provided the sufficiently strong signal. The present invention provides an unusually simple way to determine whether these two conditions are satisfied, by using a Finite-Impulse-Response digital filter (2) to extract a d.c. component of the demodulated signal (MPX), for comparison (6) with a predetermined maximum value, and by filtering (10) a field strength signal (FST), for comparison (11) with a predetermined minimum value. When both conditions are satisfied, a simple AND-gate (8) generates the stop-signal.

    Abstract translation: 在寻站模式下扫描无线电频谱的预定频带的无线电接收机必须独立地检测当前调谐的频率是否是发射台的中心频率,以及该发射机是否提供强度足够的信号,即其的 强度超过预定阈值。 一旦满足这两个条件,无线电产生终止寻站模式的“停止”信号,即将调谐电路设置为提供足够强的信号的频率。 本发明通过使用有限脉冲响应数字滤波器(2)提取直流电压来提供用于确定这两个条件是否满足的非常简单的方法。 解调信号(MPX)的分量,用于具有预定最大值的比较(6),并且通过对场强(10)进行滤波(10),以使其具有预定的最小值。 当满足两个条件时,简单的与门(8)产生停止信号。

    Circuit arrangement for frequency conversion of a digital signal
    25.
    发明授权
    Circuit arrangement for frequency conversion of a digital signal 失效
    数字信号频率转换的电路布置

    公开(公告)号:US5204676A

    公开(公告)日:1993-04-20

    申请号:US808336

    申请日:1991-12-16

    CPC classification number: H03H17/0275 H03H17/0628

    Abstract: A circuit arrangement for converting a digital signal of a first frequency into a signal of a second frequency and including an interpolator/decimator is characterized, notably for asynchronous first and second clock signals, in that there is provided at least one multiplexer arrangement which includes a first register which is clocked at the inverted first clock frequency and a second register which is clocked at the second clock frequency, and also includes a multiplexer, the input signal of the multiplexer arrangement being applied to the first register and to a first input of the multiplexer whose second input is coupled to the output of the first register, there also being provided a control circuit which alternately switches the signals applied to the two inputs of the multiplexer to its output in such a manner that at the instants at which this signal is written into the second register a valid signal is always present at the output of the multiplexer.

    Abstract translation: 用于将第一频率的数字信号转换为第二频率的信号并且包括内插器/抽取器的电路装置的特征在于特别地用于异步的第一和第二时钟信号,因为提供了至少一个多路复用器装置,其包括: 以倒置的第一时钟频率计时的第一寄存器和以第二时钟频率计时的第二寄存器,并且还包括多路复用器,多路复用器装置的输入信号被施加到第一寄存器和第一寄存器的第一输入端 多路复用器,其第二输入耦合到第一寄存器的输出,还提供了一个控制电路,其以施加到多路复用器的两个输入的信号交替地切换到其输出,使得在该信号为 写入第二个寄存器中,有效信号始终存在于多路复用器的输出端。

Patent Agency Ranking