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78 条记录 (耗时 0.023 秒)

    Receiver for a wire-free communication system
    61.
    发明申请
    Receiver for a wire-free communication system 有权
    接收机用于无线通信系统

    公开(公告)号：US20060002490A1

    公开(公告)日：2006-01-05

    申请号：US11152319

    申请日：2005-06-14

    申请人： Andre Neubauer ,  Markus Hammes ,  Dieter Bruckmann

    发明人： Andre Neubauer ,  Markus Hammes ,  Dieter Bruckmann

    IPC分类号： H04L27/06

    CPC分类号： H04L27/2337

    摘要： The present invention is directed to a receiver for a wire-free communication system for reception of a received signal which is modulated using a digital modulation method having a first frequency conversion device for production of a frequency-converted received signal by conversion of the received signal to an intermediate frequency. The receiver further includes a pre-filter for production of a filtered received signal from the frequency-converted received signal such that the received signal is band-limited, and an analogue/digital converter for production of a binary received signal from the filtered received signal by comparison of the filtered received signal with a level threshold. In addition, the receiver includes a phase reconstruction device for production of a phase-reconstructed received signal by reproduction of the phase of the received signal from the time intervals between zero crossings of the binary received signal, and a mapping device for production of a bit sequence by mapping symbols from the phase-reconstructed received signal onto this bit sequence using the digital modulation method.

    摘要翻译： 本发明涉及一种用于无线通信系统的接收机，用于接收使用具有第一频率转换装置的数字调制方法调制的接收信号，该第一频率转换装置用于通过接收信号的转换来产生频率转换的接收信号 到中频。 接收机还包括一个预滤波器，用于产生来自经频率转换的接收信号的滤波后的接收信号，使得接收的信号受到频带限制;以及模拟/数字转换器，用于从滤波的接收信号产生二进制接收信号 通过比较滤波的接收信号与电平阈值。 另外，接收机包括相位重建装置，用于通过从二进制接收信号的过零点之间的时间间隔再现接收信号的相位和用于产生位的映射装置来产生相位重建的接收信号 使用数字调制方法将来自相位重构的接收信号的符号映射到该比特序列上。

    Single point modulator having a PLL circuit
    62.
    发明申请
    Single point modulator having a PLL circuit 有权
    具有PLL电路的单点调制器

    公开(公告)号：US20050025276A1

    公开(公告)日：2005-02-03

    申请号：US10917101

    申请日：2004-08-12

    申请人： Markus Hammes ,  Giuseppe Puma ,  Stefan Waasen

    发明人： Markus Hammes ,  Giuseppe Puma ,  Stefan Waasen

    IPC分类号： H03C3/09 ,  H03L7/197 ,  H03M7/00

    CPC分类号： H03C3/0933 ,  H03C3/0925 ,  H03L7/1976

    摘要： A single-point modulator (1) has a PLL circuit (2) and a programmable frequency divider (7) whose control connection is connected to a circuit branch for injecting a digital modulation signal (15) which is arranged in the feedback path of the PLL circuit (2). The circuit branch contains a sigma-delta modulator (9) which, in turn, has a digital filter (24) having a transfer function H(z). The noise transfer function NTF(z) of the sigma-delta modulator (9) is given by the function NTF(z)=1−H(z).

    摘要翻译： 单点调制器（1）具有PLL电路（2）和可编程分频器（7），其控制连接连接到电路支路，用于注入数字调制信号（15），该数字调制信号（15）被布置在 PLL电路（2）。 电路分支包含一个Σ-Δ调制器（9），它又具有一个具有传递函数H（z）的数字滤波器（24）。 Σ-Δ调制器（9）的噪声传递函数NTF（z）由函数NTF（z）= 1-H（z）给出。

    Trimming method for a transceiver using two-point modulation
    63.
    发明授权
    Trimming method for a transceiver using two-point modulation 失效

    公开(公告)号：US06774738B2

    公开(公告)日：2004-08-10

    申请号：US10607543

    申请日：2003-06-26

    申请人： Markus Hammes ,  Stefan Van Waasen

    发明人： Markus Hammes ,  Stefan Van Waasen

    IPC分类号： H03C300

    CPC分类号： H04L27/12

    摘要： In a method for amplitude trimming in transceivers having a PLL circuit operating on the two-point modulation principle, the amplitude of an analog modulation signal is selected on the basis of a modulation shift of a defined digital modulation signal. A predetermined data sequence of the analog modulation signal is applied, the modulation shift of the analog modulation signal is determined, and the amplitude of the analog modulation signal is corrected to match the difference between the modulation shift of the digital modulation signal and the determined modulation shift of the analog modulation signal.

    Sigma-delta programming device for a PLL frequency synthesizer, configuration using the sigma-delta programming device, PLL frequency device, and method for programming a programmable device
    64.
    发明授权
    Sigma-delta programming device for a PLL frequency synthesizer, configuration using the sigma-delta programming device, PLL frequency device, and method for programming a programmable device 失效
    用于PLL频率合成器的Sigma-delta编程设备，使用Σ-Δ编程设备的配置，PLL频率设备和用于编程可编程设备的方法

    公开(公告)号：US06756927B2

    公开(公告)日：2004-06-29

    申请号：US10634525

    申请日：2003-08-05

    申请人： Markus Hammes ,  Stefan Van Waasen

    发明人： Markus Hammes ,  Stefan Van Waasen

    IPC分类号： H03M300

    CPC分类号： H03C3/095 ,  H03C3/0925 ,  H03C3/0933 ,  H03C3/0941 ,  H03L7/1976

    摘要： A sigma-delta programmer is supplied with a data word having a word length of N bits. The most significant L bits of the data word represent the places before the decimal point, and the remaining N−L less significant bits represent the places after the decimal point in the data word. A sigma-delta modulator is supplied with the N−L+1 less significant bits of the data word. An adder receives the L−1 most significant bits of the data word and a data word that is output by the sigma-delta modulator, and outputs a signal, which is multiplied by the value two by a multiplier.

    摘要翻译： Σ-Δ编程器被提供有字长为N位的数据字。 数据字的最高L位表示小数点前的位置，剩余的N-L较低有效位表示数据字中小数点后的位置。 Σ-Δ调制器被提供数据字的N-L + 1个较低有效位。 加法器接收数据字的L-1个最高有效位和由Σ-Δ调制器输出的数据字，并输出乘以乘数乘以值2的信号。

    Communication device with testing
    67.
    发明授权
    Communication device with testing 有权
    通讯设备测试

    公开(公告)号：US08831071B2

    公开(公告)日：2014-09-09

    申请号：US12690909

    申请日：2010-01-20

    申请人： Markus Hammes ,  Stefan Van Waasen

    发明人： Markus Hammes ,  Stefan Van Waasen

    IPC分类号： H04B1/00 ,  G01S19/23 ,  G01S19/36

    CPC分类号： G01S19/235 ,  G01S19/36

    摘要： Communication devices and methods are disclosed, wherein a test signal is generated at a first frequency and a higher harmonic of said test signal is received and processed at a second frequency higher than said first frequency.

    摘要翻译： 公开了通信装置和方法，其中以第一频率产生测试信号，并且以高于所述第一频率的第二频率接收和处理所述测试信号的高次谐波。

    Optoelectronic sensor and method for detecting objects
    68.
    发明授权
    Optoelectronic sensor and method for detecting objects 有权
    用于检测物体的光电传感器和方法

    公开(公告)号：US08730458B2

    公开(公告)日：2014-05-20

    申请号：US13400410

    申请日：2012-02-20

    申请人： Markus Hammes

    发明人： Markus Hammes

    IPC分类号： G01C3/08

    CPC分类号： G02B3/0068 ,  G01S7/4814 ,  G01S7/4817 ,  G01S17/42 ,  G01V8/18 ,  G02B26/10 ,  G02B27/642

    摘要： An optoelectronic sensor (10), in particular a laser scanner, is provided which comprises a light transmitter (12) for transmitting a light beam (16) having a beam profile (28) elongated in a line direction into a monitored plane (26), a light receiver (34) for generating a received signal from the light bream (30) remitted by objects in the monitored plane (26), a movable deflection unit (24) for the periodic deflection of the light beam (16, 30) to scan the monitored plane (26) in the course of the movement and an evaluation unit (42) for detecting the objects with reference to the received signal. The laser scanner has an optical beam rotation element (20) which is disposed after the light transmitter (12) and which can tilt the line direction of a light beam (16) passing through.

    摘要翻译： 提供了一种光电传感器（10），特别是激光扫描器，其包括用于将具有沿线方向延伸的光束轮廓（28）的光束（16）传输到监视平面（26）的光发射器（12） ，用于从被监视平面（26）中的物体引出的来自所述光鲷（30）产生接收信号的光接收器（34），用于所述光束（16,30）的周期性偏转的可移动偏转单元（24） 在运动过程中扫描被监视的平面（26），以及用于参照所接收的信号检测对象的评估单元（42）。 激光扫描器具有光束旋转元件（20），该光束旋转元件（20）设置在光发射器（12）之后并且可以倾斜经过的光束（16）的线方向。

    Direct FM/PM modulation
    70.
    发明授权
    Direct FM/PM modulation 失效
    直接FM / PM调制

    公开(公告)号：US08554159B2

    公开(公告)日：2013-10-08

    申请号：US12757274

    申请日：2010-04-09

    申请人： Stefan van Waasen ,  Anna Miskiewicz ,  Markus Hammes

    发明人： Stefan van Waasen ,  Anna Miskiewicz ,  Markus Hammes

    IPC分类号： H04B1/04

    CPC分类号： H03C3/00

    摘要： Representative implementations of direct FM/PM modulation and systems are disclosed describing frequency modulation or phase modulation of information onto a carrier signal using a divider that is remote from the carrier signal generation path.

    摘要翻译： 公开了直接FM / PM调制和系统的代表性实现，其使用远离载波信号生成路径的分频器来描述信号到载波信号上的频率调制或相位调制。