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    Dynamic FD coexistence method for PLC systems
    21.
    发明授权
    Dynamic FD coexistence method for PLC systems 有权
    PLC系统的动态FD共存方法

    公开(公告)号：US07702085B2

    公开(公告)日：2010-04-20

    申请号：US11239893

    申请日：2005-09-30

    Applicant: Markus Zumkeller ,  Andreas Schwager ,  Lothar Stadelmeier ,  Stephen Tiedemann ,  Gralf Gaedeken

    Inventor： Markus Zumkeller ,  Andreas Schwager ,  Lothar Stadelmeier ,  Stephen Tiedemann ,  Gralf Gaedeken

    IPC: H04M11/00

    CPC classification number: H04B3/542 ,  H04B3/54 ,  H04B15/005 ,  H04B17/309 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/5425 ,  H04B2203/5445 ,  H04B2203/5495 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04L27/2637

    Abstract: A power line communication method is provided for realizing data communication between at least one first or sending power line communication partner device (P1) and at least one second or receiving power line communication partner device (P10). The inventive method comprises a step of checking transmission conditions of a plurality of possible communication channels (Ch1, . . . , Chn). Thereby generating transmission condition data which are descriptive for the communication conditions of the respective possible communication channels (Ch1, . . . , Chn). Additionally, a step of selecting communication conditions of the plurality of possible communication channels (Ch1, . . . , Chn) as actual communication conditions based on said transmission condition data.

    Abstract translation: 提供电力线通信方法，用于实现至少一个第一或发送电力线通信伙伴装置（P1）与至少一个第二或接收电力线通信伙伴装置（P10）之间的数据通信。 本发明的方法包括检查多个可能的通信信道（Ch1，...，Chn）的传输条件的步骤。 从而生成描述各个可能的通信信道（Ch1，...，Chn）的通信条件的发送条件数据。 另外，基于所述发送条件数据，选择多个可能通信信道（Ch1，...，Chn）的通信条件作为实际通信条件的步骤。

    Network device and method employing omni-directional and directional antennas
    22.
    发明授权
    Network device and method employing omni-directional and directional antennas 有权
    使用全向和定向天线的网络设备和方法

    公开(公告)号：US06370369B1

    公开(公告)日：2002-04-09

    申请号：US09599338

    申请日：2000-06-22

    Applicant: Besma Kraiem ,  Janos Enderlein ,  Markus Zumkeller

    Inventor： Besma Kraiem ,  Janos Enderlein ,  Markus Zumkeller

    IPC: H04B106

    CPC classification number: H04L12/4011 ,  H04B7/0608 ,  H04B7/0811

    Abstract: Performing an antenna diversity set-up according to the present invention a first mobile terminal (1) transmits a pre-defined antenna calibration signal to a second mobile terminal (15) using its omni-directional antenna (10). During the period of the transmitted signal the best receiving antenna (x) is identified at the second mobile terminal (15) by switching all its directional antennas (21 to 28) and its omni-directional antenna (20) into its receiving path and measuring the received signal quality, e.g. the received signal strength. The directional antenna (x) of the second network device (15) which is identified as best receiving antenna is then used for transmission and reception of data transfer with the first network device (1). Using this antenna, the second network device (15) transmits its pre-defined calibration signal to the first network device (1) which repeats a similar switching and measuring procedure with its directional antennas (11 to 14) and its omni-directional antenna (10) to identify its best receiving antenna (y). These two antennas (x, y) identified at the second network device (15) and the first network device (1) are then used for direct data transfer in-between these both devices. This inventive method is preferably used in direct mode within an IEEE 1394 based HIPERLAN type 2 wireless network.

    Abstract translation: 根据本发明执行天线分集设置，第一移动终端（1）使用其全向天线（10）将预定义的天线校准信号发送到第二移动终端（15）。 在发送信号的周期期间，通过将其所有定向天线（21至28）及其全向天线（20）切换到其接收路径并测量其中的第二移动终端（15）来识别最佳接收天线（x） 接收的信号质量，例如 接收信号强度。 被识别为最佳接收天线的第二网络设备（15）的定向天线（x）然后用于与第一网络设备（1）的数据传输的发送和接收。 使用该天线，第二网络设备（15）将其预定义的校准信号发送到第一网络设备（1），其通过其定向天线（11至14）及其全向天线（ 10）识别其最佳接收天线（y）。 然后，在第二网络设备（15）和第一网络设备（1）处识别的这两个天线（x，y）用于这两个设备之间的直接数据传输。 本发明的方法优选以基于IEEE 1394的HIPERLAN 2型无线网络中的直接模式使用。

    Detection method for the transmitter identification information signal in the null symbol of a DAB stream
    23.
    发明授权
    Detection method for the transmitter identification information signal in the null symbol of a DAB stream 有权
    用于DAB流的空符号中的发射机识别信息信号的检测方法

    公开(公告)号：US06134267A

    公开(公告)日：2000-10-17

    申请号：US149819

    申请日：1998-09-08

    Applicant: Wolfgang Schafer ,  Jurgen Grassle ,  Markus Zumkeller

    Inventor： Wolfgang Schafer ,  Jurgen Grassle ,  Markus Zumkeller

    IPC: H04B1/16 ,  H04H60/50 ,  H04H60/51 ,  H04J11/00 ,  H04B17/00

    CPC classification number: H04H60/50 ,  H04H2201/20 ,  H04H60/51

    Abstract: A DAB stream starts with a so-called null symbol for the receiver synchronization carrying a transmitter identification information, i.e. TII, signal. Each transmitter in the single frequency network is assigned a main id and a sub id for unique identification. This identification is mapped to a certain pattern with 16/8/4/2 set carrier pairs in the spectrum of the null symbol according to the DAB modes I-IV. Based on mode II which has 384 valid carriers a so called comb block is defined. For modes I and IV this block is repeated 4 and 2 times, respectively. For mode III only a half block is available. This pattern is transmitted every 2nd DAB frame in the null symbol.To detect the set carriers the steps of differential demodulation of TII pairs included in the spectrum (S.sub.1 (.omega.)) of every second null symbol of the incoming DAB stream (S1, S2, S3) to respectively obtain a demodulated null symbol, correction of carrier phases of the demodulated null symbol spectrum (S4), determination of a threshold (S7), and decision if a carrier is set or not by comparing the carrier level to the determined threshold (S6) are performed.

    Abstract translation: DAB流以用于携带发射机识别信息即TII信号的接收机同步的所谓空符号开始。 为单频网络中的每个发射机分配一个主ID和一个用于唯一标识的子ID。 根据DAB模式I-IV，该标识被映射到具有16/8/4/2设置的空符号的频谱中的载波对的特定模式。 基于具有384个有效载波的模式II，定义了所谓的梳状块。 对于模式I和IV，该块分别重复4和2次。 对于模式III，只有一半块可用。 该空格符号中每第二个DAB帧发送此模式。 为了检测所设置的载波，包括在输入DAB流（S1，S2，S3）的每个第二空符号的频谱（S1（ω））中的TII对的差分解调的步骤，以分别获得解调的零符号，校正 执行解调的零符号频谱的载波相位（S4），阈值的确定（S7）以及通过将载波电平与确定的阈值进行比较来决定载波是否被设置（S6）。

    METHOD FOR DETERMINING A POINT IN TIME WITHIN AN AUDIO SIGNAL
    26.
    发明申请
    METHOD FOR DETERMINING A POINT IN TIME WITHIN AN AUDIO SIGNAL 有权
    用于在音频信号中确定时间点的方法

    公开(公告)号：US20100040342A1

    公开(公告)日：2010-02-18

    申请号：US12526636

    申请日：2007-11-30

    Applicant: Thomas Kemp ,  Markus Zumkeller

    Inventor： Thomas Kemp ,  Markus Zumkeller

    IPC: H04N5/91 ,  G06F17/00

    CPC classification number: G11B27/28 ,  G10L25/48 ,  G11B27/034 ,  G11B27/329 ,  H04N5/76 ,  H04N5/765 ,  H04N5/85 ,  H04N7/165 ,  H04N9/8205 ,  H04N21/233 ,  H04N21/4147 ,  H04N21/4334 ,  H04N21/4394 ,  H04N21/4728 ,  H04N21/6581 ,  H04N21/8456

    Abstract: A method for determining a point in time within an audio signal, the audio signal having been transmitted from a broadcast station to a client and to a server, the method including: deriving, at the server, first signature data from the audio signal, wherein a reference point in time is associated with the beginning or end of the audio data corresponding to the first signature data; deriving, at the client, second signature data from the audio signal, wherein the second signature data are derived in the same manner as the first signature data at the server; comparing the first and second signature data; and determining the point in time to be equal to the reference point in time depending on a result of the comparing.

    Abstract translation: 一种用于确定音频信号内的时间点的方法，所述音频信号已经从广播站发送到客户机和服务器，所述方法包括：在服务器处从音频信号导出第一签名数据，其中 参考时间点与对应于第一签名数据的音频数据的开始或结束相关联; 在所述客户端处从所述音频信号导出第二签名数据，其中所述第二签名数据以与所述服务器处的所述第一签名数据相同的方式导出; 比较第一和第二签名数据; 并根据比较结果确定时间点等于参考点。

    AM receiver
    28.
    发明授权
    AM receiver 有权
    AM接收机

    公开(公告)号：US07155189B2

    公开(公告)日：2006-12-26

    申请号：US09855422

    申请日：2001-05-15

    Applicant: Markus Zumkeller ,  Carsten Merkle

    Inventor： Markus Zumkeller ,  Carsten Merkle

    IPC: H04B1/06

    CPC classification number: H04B1/1036 ,  H04B1/28

    Abstract: An AM receiver with at least one IF filter with a fixed IF bandwidth comprises at least one downconversion stage (3, 4, 5) to shift the signal input thereto into an IF range (IF1) having a variable oscillation frequency (fLO1) which is adjustable to detune a wanted center frequency (fC1) of a wanted signal part (30) from a center frequency (fIF1) of the at least one IF filter so that an unwanted signal part (31b) adjacent to the wanted signal part (30) lies outside the fixed IF bandwidth.

    Abstract translation: 具有至少一个具有固定IF带宽的IF滤波器的AM接收器包括至少一个下变频级（3,4,5），以将输入的信号移位到具有可变振荡频率（f LO1 ），其可调整以使有用信号部分（30）的有用中心频率（f C1）从中心频率（f IF1）分离， 使得与有用信号部分（30）相邻的不需要的信号部分（31a）位于固定的IF带宽之外。

    Alternative frequency strategy for DRM
    29.
    发明申请
    Alternative frequency strategy for DRM 审中-公开

    公开(公告)号：US20060274717A1

    公开(公告)日：2006-12-07

    申请号：US11484628

    申请日：2006-07-12

    Applicant: Carsten Merkle ,  Jens Wildhagen ,  Markus Zumkeller

    Inventor： Carsten Merkle ,  Jens Wildhagen ,  Markus Zumkeller

    IPC: H04J3/24

    CPC classification number: H04H20/22 ,  H04H20/26 ,  H04H20/95 ,  H04H40/18 ,  H04H60/27

    Abstract: A radio transmission signal consisting of signal frames that comprise a dynamic data part and a quasi-static data part according to the present invention is characterized in that the dynamic data part of a respective frame contains an indicator showing in which following frame the quasi-static data part of this respective frame will be repeated. Therewith, an alternative frequency of e.g. a digital shortwave signal like a DRM signal can easily and satisfactorily be checked before a fast seamless switching to this alternative frequency can be performed. The inventive method to perform a seamless switching of a receiver from a first currently tuned frequency to a second alternative frequency is characterized by the step of receiving at least one set of samples from a respective signal transmitted on at least one second frequency during a time period during which said indicator assures that it is secure that only data that has been transmitted at least once is transmitted as signal on said first frequency to gather some information about said alternative frequency.

    Dynamic FD coexistence method for PLC systems
    30.
    发明申请
    Dynamic FD coexistence method for PLC systems 有权
    PLC系统的动态FD共存方法

    公开(公告)号：US20060073805A1

    公开(公告)日：2006-04-06

    申请号：US11239893

    申请日：2005-09-30

    Applicant: Markus Zumkeller ,  Andreas Schwager ,  Lothar Stadelmeier ,  Stephen Tiedemann ,  Gralf Gaedeken

    Inventor： Markus Zumkeller ,  Andreas Schwager ,  Lothar Stadelmeier ,  Stephen Tiedemann ,  Gralf Gaedeken

    IPC: H04M9/00

    CPC classification number: H04B3/542 ,  H04B3/54 ,  H04B15/005 ,  H04B17/309 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/5425 ,  H04B2203/5445 ,  H04B2203/5495 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04L27/2637

    Abstract: A power line communication method is provided for realizing data communication between at least one first or sending power line communication partner device (P1) and at least one second or receiving power line communication partner device (P10). The inventive method comprises a step of checking transmission conditions of a plurality of possible communication channels (Ch1, . . . , Chn). Thereby generating transmission condition data which are descriptive for the communication conditions of the respective possible communication channels (Ch1, . . . , Chn). Additionally, a step of selecting communication conditions of the plurality of possible communication channels (Ch1, . . . , Chn) as actual communication conditions based on said transmission condition data.

    Abstract translation: 提供电力线通信方法，用于实现至少一个第一或发送电力线通信伙伴装置（P 1）与至少一个第二或接收电力线通信伙伴装置（P 10）之间的数据通信。 本发明的方法包括检查多个可能的通信信道（Ch 1，...，Chn）的传输条件的步骤。 从而生成描述各个可能的通信信道（Ch 1，...，Chn）的通信条件的发送条件数据。 另外，基于所述发送条件数据，选择多个可能通信信道（Ch 1，...，Chn）的通信条件作为实际通信条件的步骤。

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