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    • 2. 发明授权
    • Method for monitoring symmetrical two-wire bus lines and two-wire bus
interfaces and device for carrying out the method
    • 用于监控对称双线总线和双线总线接口的方法以及用于执行该方法的设备
    • US5452308A
    • 1995-09-19
    • US43487
    • 1993-04-06
    • Detlef KaminskiThilo KuhnerWolfgang KremerBernd HausslerMax ReebRolf AdomatMichael BrodersenAlexander DorrHerbert Fiessinger
    • Detlef KaminskiThilo KuhnerWolfgang KremerBernd HausslerMax ReebRolf AdomatMichael BrodersenAlexander DorrHerbert Fiessinger
    • H04L12/24H04L12/26G06F11/00
    • H04L43/00H04L12/2602H04L12/2697H04L41/06H04L43/50
    • A method for monitoring symmetrical two-wire bus lines and two-wire bus interfaces and a device for carrying out the method provides pulse weighting of low to high transitions or high to low transitions of the two wires operated in phase opposition of a two-wire bus line. The pulse chains thus obtained are used for step sequencing. In each case, one multistep shift function which is assigned to the first bus wire, is supplied with a first, constant logic read in state and can be reset to a second logic state in all-step fashion and, for all-step resetting of a similar second multistep shift function assigned to the second bus while, and vice versa, the step last achieved for each multistep shift function characterizing the respective fault state of the other bus wire. The pulse weighting is achieved by differentiation or high-pass filtering or by pulse generation controlled by state transition. For the pulse weighting, the device uses simple RC elements or edge-controlled monostable times, and for the multistep shift functions, two similar shift registers are used which can be loaded serially and clocked and reset in parallel and which can also be realized in one piece as a component of a monolithic semiconductor circuit by the previously mentioned elements. The device has a fault tolerance which can be programmed with respect to the bit width, and in conjunction with a likewise settable input cutoff frequency permits the decentralized local testing of two wire bus-type networks. The device can be made using CMOS technology, in conjunction with a very low space requirement.
    • 用于监测对称的双线总线和两线总线接口的方法以及用于执行该方法的装置提供脉冲加权,该两个线路与两线相反地操作的两根线的低至高转变或高到低转变 公车线。 由此获得的脉冲串用于步骤测序。 在每种情况下,分配给第一总线的一个多步移位功能被提供有第一恒定逻辑读入状态,并且可以以全部步骤的方式复位到第二逻辑状态,并且对于全步重置 分配给第二总线的类似的第二多步移位功能,反之亦然,对于表征另一母线的相应故障状态的每个多步移位功能,最后获得的步骤。 通过微分或高通滤波或通过状态转换控制的脉冲发生实现脉冲加权。 对于脉冲加权,器件使用简单的RC元件或边沿控制的单稳态时间,对于多步移位函数,使用两个类似的移位寄存器,可以串行和时钟加载并且并行复位,也可以在一个 作为单片半导体电路的组件,由前述元件构成。 该器件具有可以相对于位宽度编程的容错,并且结合同样可设置的输入截止频率允许两个有线总线型网络的分散式本地测试。 该器件可以使用CMOS技术制造,结合非常低的空间要求。
    • 4. 发明授权
    • Method of operating a multi-antenna pulsed radar system
    • 操作多天线脉冲雷达系统的方法
    • US06184819B2
    • 2001-02-06
    • US09348605
    • 1999-07-06
    • Rolf AdomatFranz Waibel
    • Rolf AdomatFranz Waibel
    • G01S13536
    • G01S13/87G01S13/48G01S13/931G01S2013/9325
    • A method for operating a radar system using at least two antennas provides an increased angular resolution for determining the angular position, radial velocity, and/or distance to a reflection object. A plurality of successive measuring phases are carried out in at least one measuring process. In each measuring phase, operation is repeatedly switched between a transmitting operation in which a transmitted signal pulse is emitted, and a receiving operation in which reflection signals are detected as received signals in the pulse pause interval between successive transmitted pulses. In at least one measuring phase, two different neighboring antennas of the radar system are used respectively as the transmitting antenna for emitting the transmitted signal and as the receiving antenna for detecting the reflected signal. In this manner, the respective receiving antenna monitors only the angular range of overlap between the emitted beam of the transmitting antenna and the field of view of the receiving antenna. The information provided by the detected signals in this overlapping angular range achieves an increased angular resolution. The method is particularly suitable for operating a separation distance warning system for a motor vehicle.
    • 使用至少两个天线来操作雷达系统的方法提供增加的角度分辨率,用于确定与反射物体的角位置,径向速度和/或距离。 多个连续测量阶段在至少一个测量过程中进行。 在每个测量阶段,在连续发送的脉冲之间的脉冲暂停间隔中,在发送发送信号脉冲的发送操作和反射信号被检测为接收信号的接收操作之间重复切换操作。 在至少一个测量阶段,分别使用雷达系统的两个不同的相邻天线作为用于发射发射信号的发射天线和用作检测反射信号的接收天线。 以这种方式,各个接收天线仅监视发射天线的发射波束与接收天线的视场之间的重叠角度范围。 在该重叠角度范围内由检测到的信号提供的信息实现了增加的角度分辨率。 该方法特别适用于操作机动车辆的分离距离警告系统。