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    • 3. 发明申请
    • Method and filter arrangement for digital recursive filtering in the time domain
    • 时域中数字递归滤波的方法和滤波器布置
    • US20050108311A1
    • 2005-05-19
    • US10714811
    • 2003-11-17
    • Heinz MattesPeter GregoriusPaul Lindt
    • Heinz MattesPeter GregoriusPaul Lindt
    • H03H17/04G06F17/10
    • H03H17/0223H03H17/04
    • A method and apparatus for fast digital filtering that requires only filter stages of first and second order. A desired rational filter transfer function is represented as a sum of first and second order intermediate transfer functions. A time dependent input signal is first fed in parallel into a plurality of first and second order intermediate recursive filter stages. Then, the outputs of the intermediate filter stages are summed up to an output filter signal that corresponds to the desired rational filter transfer function. The method and apparatus reduces the amount of calculational effort to the order of O(N), where N denotes the number of sampling points in the time domain, because the digital filtering is based on a discrete recursive convolution in the time domain.
    • 用于快速数字滤波的方法和装置,其仅需要一阶和二阶滤波器阶段。 期望的合理滤波传递函数被表示为第一和第二阶中间传递函数的和。 首先将依赖于时间的输入信号并入多个第一和第二阶中间递归滤波器级。 然后,将中间滤波器级的输出相加到对应于期望的有理滤波器传递函数的输出滤波器信号。 该方法和装置将计算努力的量减少到O(N)的阶数,其中N表示时域中的采样点的数量,因为数字滤波是基于时域中的离散递归卷积。
    • 5. 发明授权
    • Method and device for estimating channel properties of a transmission channel
    • 用于估计传输信道的信道特性的方法和装置
    • US07561639B2
    • 2009-07-14
    • US10970516
    • 2004-10-21
    • Peter GregoriusPaul Georg LindtHeinz Mattes
    • Peter GregoriusPaul Georg LindtHeinz Mattes
    • H04L27/06
    • H04L47/10
    • To estimate physical properties of a wired or wireless transmission channel it is proposed to sample a signal, received via the transmission channel, for example a system response of the corresponding transmission system, in order, on the basis of the sampled values thus obtained, to ascertain the moments of the order 0 . . . n of the received signal. Using these moments of the order 0 . . . n, n parameters of a transmission function of the transmission channel can be determined, wherein the parameters can be polynomial coefficients, zero points or coefficients of a residual notation of the transmission function. Using this transmission function the physical properties of the transmission channel, such as the attenuation and dispersion properties, can be determined exactly or at least approximately assessed.
    • 为了估计有线或无线传输信道的物理特性,提出了通过传输信道接收的信号,例如相应传输系统的系统响应,以这样获得的采样值为基础 确定订单的时刻0。 。 。 n的接收信号。 使用订单0的这些时刻。 。 。 可以确定传输信道的传输函数的n,n个参数,其中参数可以是传输函数的多项式系数,零点或残差符号的系数。 使用这种传输功能,传输通道的物理特性,如衰减和色散特性,可以精确地或至少近似评估来确定。
    • 6. 发明授权
    • Device and method for measuring jitter
    • 用于测量抖动的装置和方法
    • US07558991B2
    • 2009-07-07
    • US11440441
    • 2006-05-25
    • Heinz MattesSebastian Sattler
    • Heinz MattesSebastian Sattler
    • G11B20/20G01R31/28G01R29/26H04B3/26
    • H04L1/205G01R31/31709H04B3/462H04B14/044H04B17/364H04J2203/0062
    • A test device contains a data pattern generator for providing a delta-sigma-modulated data stream sampled with a sampling frequency fs at its output. A phase modulator generates a test clock subjected to jitter and having the clock frequency ft at its output. The output of the data pattern generator is connected to a terminal for connection to a data input of a semiconductor component to be tested. The output of the phase modulator is connected to a terminal for connection to a clock input of a semiconductor component to be tested. An evaluation device determines the jitter parameters of the input signal at the input of the data device from the low-frequency component of the input signal. In this case, the low-frequency component contains only frequency components of frequencies which are less than half the sampling frequency fs/2.
    • 测试装置包含一个数据模式发生器,用于提供在其输出端以采样频率fs采样的Δ-Σ调制数据流。 相位调制器产生经受抖动的测试时钟,并在其输出端具有时钟频率ft。 数据模式发生器的输出端连接到用于连接到要测试的半导体元件的数据输入端的端子。 相位调制器的输出连接到用于连接到要测试的半导体部件的时钟输入的端子。 评估装置从输入信号的低频分量确定数据装置的输入处的输入信号的抖动参数。 在这种情况下,低频分量仅包含小于采样频率fs / 2的一半的频率的频率分量。
    • 7. 发明授权
    • Test apparatus and method for testing analog/digital converters
    • 用于测试模拟/数字转换器的测试设备和方法
    • US07391349B2
    • 2008-06-24
    • US11692554
    • 2007-03-28
    • Claus DworskiHeinz MattesSebastian Sattler
    • Claus DworskiHeinz MattesSebastian Sattler
    • H03M1/10
    • H03M1/1095
    • A method for testing AD converters (10) may have the steps of a) producing a digital test signal, b) producing an analog test signal as input signal for the AD converter (10) from the digital test signal, c) producing a sinusoidal, digital reference signal whose frequency is equal to or an integer multiple of the frequency of the analog test signal, d) mixing the test response from the AD converter (10) with the sine and the cosine of the digital reference signal to form mixed signals, e) determining the DC components of the mixed signals, and f) determining at least one of the parameters including amplitude, power components and phase angle for a fundamental or harmonic of the test response from the DC components of the mixed signals.
    • 用于测试AD转换器(10)的方法可以具有以下步骤:a)产生数字测试信号,b)从数字测试信号产生作为AD转换器(10)的输入信号的模拟测试信号,c)产生正弦曲线 数字参考信号,其频率等于或模拟测试信号频率的整数倍; d)将来自AD转换器(10)的测试响应与数字参考信号的正弦和余弦混合形成混合信号 e)确定所述混合信号的DC分量,以及f)确定所述参数中的至少一个,所述参数包括来自所述混合信号的DC分量的所述测试响应的基波或谐波的幅度,功率分量和相位角。
    • 9. 发明申请
    • Test Apparatus And Method For Testing Analog/Digital Converters
    • 测试设备和测试模拟/数字转换器的方法
    • US20070216555A1
    • 2007-09-20
    • US11692554
    • 2007-03-28
    • Claus DworskiHeinz MattesSebastian Sattler
    • Claus DworskiHeinz MattesSebastian Sattler
    • H03M1/10
    • H03M1/1095
    • A method for testing AD converters (10) may have the steps of a) producing a digital test signal, b) producing an analog test signal as input signal for the AD converter (10) from the digital test signal, c) producing a sinusoidal, digital reference signal whose frequency is equal to or an integer multiple of the frequency of the analog test signal, d) mixing the test response from the AD converter (10) with the sine and the cosine of the digital reference signal to form mixed signals, e) determining the DC components of the mixed signals, and f) determining at least one of the parameters including amplitude, power components and phase angle for a fundamental or harmonic of the test response from the DC components of the mixed signals.
    • 用于测试AD转换器(10)的方法可以具有以下步骤:a)产生数字测试信号,b)从数字测试信号产生作为AD转换器(10)的输入信号的模拟测试信号,c)产生正弦曲线 数字参考信号,其频率等于或模拟测试信号频率的整数倍; d)将来自AD转换器(10)的测试响应与数字参考信号的正弦和余弦混合形成混合信号 e)确定所述混合信号的DC分量,以及f)确定所述参数中的至少一个,所述参数包括来自所述混合信号的DC分量的所述测试响应的基波或谐波的幅度,功率分量和相位角。
    • 10. 发明申请
    • Device and method for testing integrated circuits
    • 集成电路测试装置和方法
    • US20070067129A1
    • 2007-03-22
    • US10566461
    • 2004-07-08
    • Heinz MattesSebastian Sattler
    • Heinz MattesSebastian Sattler
    • G01R35/00
    • G01R31/2839G01R35/005
    • A test device and method is disclosed. In one embodiment the test device includes a precision signal generator for generating a test signal, which generator is connected via a respective connecting line to a respective input contact intended for connection to an input of an integrated circuit, and at least one reference signal generator for generating a reference signal. Furthermore, at least one comparator unit is provided for a respective input contact said comparator unit being able to be operated in a test mode. In the test mode, the test signal is compared with the reference signal. The precision signal generator is turned off by the comparator unit if the test signal exceeds or falls below the reference signal.
    • 公开了一种测试装置和方法。 在一个实施例中,测试装置包括用于产生测试信号的精密信号发生器,该发生器经由相应的连接线连接到用于连接到集成电路的输入的相应输入触点,以及至少一个参考信号发生器, 产生参考信号。 此外,为相应的输入触点提供至少一个比较器单元,所述比较器单元能够在测试模式下操作。 在测试模式下,将测试信号与参考信号进行比较。 如果测试信号超过或低于参考信号,则比较器单元关闭精密信号发生器。