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1. 发明授权

US06931084B1 Differential coding and carrier recovery for multicarrier systems 有权
标题翻译：多载波系统的差分编码和载波恢复
公开(公告)号：US06931084B1
公开(公告)日：2005-08-16
申请号：US09673266
申请日：1998-04-14
申请人： Ernst Eberlein , Sabah Badri , Stefan Lipp , Stephan Buchholz , Albert Heuberger , Heinz Gerhaeuser , Robert Fischer
发明人： Ernst Eberlein , Sabah Badri , Stefan Lipp , Stephan Buchholz , Albert Heuberger , Heinz Gerhaeuser , Robert Fischer
IPC分类号： H04L27/22 , H04J1/02 , H04J11/00 , H04L27/26 , H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00
CPC分类号： H04L27/2602 , H04L27/2657 , H04L27/2679
摘要： A method of performing an echo phase offset correction in a multi-carrier demodulation system involves the step of differential phase decoding phase shifts based on a phase difference between simultaneous carriers having different frequencies. An echo phase offset is determined for each decoded phase shift by eliminating phase shift uncertainties related to the transmitted information from the decoded phase shift. The echo phase offsets are averaged in order to generate an averaged offset. Finally, each decoded phase shift is corrected based on the averaged offset.
摘要翻译：在多载波解调系统中执行回波相位偏移校正的方法涉及基于具有不同频率的同时载波之间的相位差的差分相位解码相移的步骤。通过从解码的相移中消除与发送的信息相关的相移不确定性，为每个解码的相移确定回波相位偏移。对回波相位偏移进行平均，以产生平均偏移。最后，基于平均的偏移来校正每个解码的相移。

2. 发明授权

US07173979B1 Method and device for transmitting information symbols using a plurality of carriers and method and device for receiving information symbols 有权
标题翻译：使用多个载波发送信息符号的方法和装置以及用于接收信息符号的方法和装置
公开(公告)号：US07173979B1
公开(公告)日：2007-02-06
申请号：US09763009
申请日：1999-04-15
申请人： Sabah Badri , Ernst Eberlein , Stephan Buchholz , Stefan Lipp , Albert Heuberger , Heinz Gerhaeuser
发明人： Sabah Badri , Ernst Eberlein , Stephan Buchholz , Stefan Lipp , Albert Heuberger , Heinz Gerhaeuser
IPC分类号： H04L27/20
CPC分类号： H04L1/04 , H04L1/08 , H04L27/2608
摘要： The invention relates to a method and a device for transmitting information symbols using a plurality of carriers, wherein a first transmission symbol is produced (52, 54) on the basis of an information symbol. A second transmission symbol is also produced (52, 54) on the basis of the same information symbol, wherein the second transmission symbol differs from the first transmission symbol. The first and second transmission symbols are modulated (56) on a carrier and transmitted (62) at different intervals. The invention further relates to a method and a device for receiving information symbols represented by the first and second information symbols, wherein both transmission symbols received are used in order to extract the information symbol contained in both transmission symbols.
摘要翻译：本发明涉及一种使用多个载波发送信息符号的方法和装置，其中基于信息符号产生第一传输符号（52,54）。还基于相同的信息符号产生第二传输符号（52,54），其中第二传输符号与第一传输符号不同。第一和第二传输符号在载波上被调制（56）并以不同的间隔传输（62）。本发明还涉及一种用于接收由第一和第二信息符号表示的信息符号的方法和装置，其中使用接收的两个传输符号来提取包含在两个传输符号中的信息符号。

3. 发明授权

US07061997B1 Method and apparatus for fine frequency synchronization in multi-carrier demodulation systems 有权
标题翻译：多载波解调系统中精细频率同步的方法和装置
公开(公告)号：US07061997B1
公开(公告)日：2006-06-13
申请号：US09673270
申请日：1998-04-14
申请人： Ernst Eberlein , Sabah Badri , Stefan Lipp , Stephan Buchholz , Albert Heuberger , Heinz Gerhaeuser
发明人： Ernst Eberlein , Sabah Badri , Stefan Lipp , Stephan Buchholz , Albert Heuberger , Heinz Gerhaeuser
IPC分类号： H03D3/22 , H01J11/00
CPC分类号： H04L27/266 , H04L27/2679
摘要： A method and an apparatus relating to a fine frequency synchronization compensating for a carrier frequency deviation from an oscillator frequency in a multi-carrier demodulation system of the type capable of carrying out a differential phase decoding of multi-carrier modulated signals, the signals comprising a plurality of symbols, each symbol being defined by phase differences between simultaneous carriers having different frequencies. A phase difference between phases of the same carrier in different symbols is determined. Thereafter, a frequency offset is determined by eliminating phase shift uncertainties related to the transmitted information from the phase difference making use of a M-PSK decision device. Finally, a feedback correction of the carrier frequency deviation is performed based on the determined frequency offset. Alternatively, an averaged frequency offset can be determined by averaging determined frequency offsets of a plurality of carriers. Then, the feedback correction of the frequency deviation is performed based on the averaged frequency offset.
摘要翻译：一种在能够执行多载波调制信号的差分相位解码的类型的多载波解调系统中补偿来自振荡器频率的载波频率偏差的精细频率同步的方法和装置，所述信号包括多个符号，每个符号由具有不同频率的同时载波之间的相位差定义。确定不同符号中相同载波的相位之间的相位差。此后，通过利用使用M-PSK判定装置的相位差消除与发送的信息有关的相移不确定性来确定频率偏移。最后，基于确定的频率偏移来执行载波频率偏差的反馈校正。或者，可以通过平均确定的多个载波的频率偏移来确定平均频率偏移。然后，基于平均的频率偏移来执行频率偏差的反馈校正。

4. 发明授权

US06993094B1 Coarse frequency synchronization in multicarrier systems 有权
标题翻译：多载波系统中的粗频同步
公开(公告)号：US06993094B1
公开(公告)日：2006-01-31
申请号：US09673265
申请日：1998-04-14
申请人： Ernst Eberlein , Sabah Badri , Stefan Lipp , Stephan Buchholz , Albert Heuberger , Heinz Gerhaeuser
发明人： Ernst Eberlein , Sabah Badri , Stefan Lipp , Stephan Buchholz , Albert Heuberger , Heinz Gerhaeuser
IPC分类号： H04L27/22 , H04L27/06
CPC分类号： H04L27/2613 , H04L27/2659 , H04L27/2675 , H04L2027/003
摘要： A method and apparatus provide coarse frequency synchronization compensating for a carrier frequency deviation from an oscillator frequency in a demodulation system capable of demodulating a signal having a frame structure with at least one useful symbol and a reference symbol which is an amplitude-modulated sequence. A received and down-converted signal undergoes amplitude-demodulation to generate an envelope that is correlated with a predetermined reference pattern to determine the carrier frequency deviation. Finally, the oscillator frequency is controlled based on the carrier frequency deviation. The reference symbol may comprise two identical sequences. In this case, the envelope obtained by the amplitude-demodulation has two portions which are based on the identical sequences. One of the portions of the envelope is correlated with the other one of the portions in order to determine the carrier frequency deviation. The oscillator frequency is controlled based on the determined carrier frequency deviation.
摘要翻译：一种方法和装置，在能够解调具有至少一个有用符号的帧结构的信号和作为幅度调制序列的参考符号的解调系统中，提供补偿来自振荡器频率的载波频率偏差的粗略频率同步。接收和下变频信号进行幅度解调以产生与预定参考模式相关联的包络线以确定载波频率偏差。最后，振荡器频率根据载波频率偏差进行控制。参考符号可以包括两个相同的序列。在这种情况下，通过幅度解调获得的包络具有基于相同序列的两部分。为了确定载波频率偏差，包络线的一部分与另一部分相关。基于确定的载波频率偏差来控制振荡器频率。

5. 发明授权

US06993084B1 Coarse frequency synchronisation in multicarrier systems 有权
标题翻译：多载波系统中的粗频同步
公开(公告)号：US06993084B1
公开(公告)日：2006-01-31
申请号：US09673271
申请日：1998-04-14
申请人： Ernst Eberlein , Sabah Badri , Stefan Lipp , Stephan Buchholz , Albert Heuberger , Heinz Gerhaeuser
发明人： Ernst Eberlein , Sabah Badri , Stefan Lipp , Stephan Buchholz , Albert Heuberger , Heinz Gerhaeuser
IPC分类号： H04L27/28
CPC分类号： H04L27/2613 , H04L5/0048 , H04L27/2605 , H04L27/2656 , H04L27/2657 , H04L27/2675
摘要： A method for generating a signal having a frame structure, each frame of the frame structure comprising at least one useful symbol, a guard interval associated to the at least one useful symbol and a reference symbol, comprises the steps of performing an amplitude modulation of a bit sequence such that the envelope of the amplitude modulated bit sequence defines a reference pattern of the reference symbol and inserting the amplitude modulated bit sequence into said signal as said reference symbol. A method for frame synchronization of a signal having such a frame structure comprises the steps of receiving the signal, down-converting the received signal, performing an amplitude-demodulation of the down-converted signal in order to generate an envelope, correlating the envelope with a predetermined reference pattern in order to detect a signal reference pattern of the reference symbol in the signal, and performing the frame synchronization based on the detection of the signal reference pattern.
摘要翻译：一种用于产生具有帧结构的信号的方法，所述帧结构的每个帧包括至少一个有用符号，与所述至少一个有用符号相关联的保护间隔和参考符号，包括以下步骤：执行幅度调制使得幅度调制比特序列的包络定义参考符号的参考模式，并将幅度调制比特序列插入到作为所述参考符号的所述信号中。一种用于具有这种帧结构的信号的帧同步的方法包括以下步骤：接收信号，对接收到的信号进行下变频，对下变频信号进行幅度解调，以产生包络，将信封与预定的参考图案，以便检测信号中参考符号的信号参考模式，并且基于信号参考模式的检测来执行帧同步。

6. 发明授权

US06690927B1 DECT transmit-receive terminal and method for communicating between a DECT transmit-receive terminal and a DECT base station 有权
标题翻译： DECT发送接收终端和用于在DECT发送接收终端和DECT基站之间进行通信的方法
公开(公告)号：US06690927B1
公开(公告)日：2004-02-10
申请号：US10148243
申请日：2002-10-08
申请人： Juergen Hupp , Udo Stoermer , Thomas Kleinhenz , Albert Heuberger , Klaus Rebhan , Frank Noether , Martin Tittel , Heinz Gerhaeuser
发明人： Juergen Hupp , Udo Stoermer , Thomas Kleinhenz , Albert Heuberger , Klaus Rebhan , Frank Noether , Martin Tittel , Heinz Gerhaeuser
IPC分类号： H04B106
CPC分类号： H04B7/0608 , H04B1/1027 , H04B7/0814 , H04L1/20
摘要： A DECT transmit-receive terminal comprises a plurality of transmit-receive antennas for communicating with a DECT base station, a device for determining the quality of a communications connection between the DECT transmit-receive terminal and the DECT base station, and a means for switching over from one transmit-receive antenna to another transmit-receive antenna, said switch-over means being connected to the determining device for switching over if the quality of the communications connection is below a predetermined threshold. An antenna diversity effect is thus realized for the DECT transmit-receive terminal by means of which the transmission quality of the communications connection is improved.
摘要翻译： DECT发送接收终端包括用于与DECT基站进行通信的多个发送接收天线，用于确定DECT发送接收终端与DECT基站之间的通信连接的质量的装置，以及用于切换的装置从一个发射 - 接收天线到另一个发射 - 接收天线，如果通信连接的质量低于预定阈值，则所述切换装置连接到确定装置以便切换。因此，对于DECT发送 - 接收终端实现了天线分集效应，通过该DECT发送 - 接收终端提高了通信连接的传输质量。

7. 发明授权

US08804768B2 Apparatus and method for transmitting a plurality of information signals in flexible time-division multiplexing 有权
标题翻译：用于以灵活的时分多路复用方式发送多个信息信号的装置和方法
公开(公告)号：US08804768B2
公开(公告)日：2014-08-12
申请号：US13233188
申请日：2011-09-15
申请人： Christian Forster , Andreas Mull , Stefan Doehla , Heinz Gerhaeuser , Albert Heuberger
发明人： Christian Forster , Andreas Mull , Stefan Doehla , Heinz Gerhaeuser , Albert Heuberger
IPC分类号： H04J3/00 , H04H20/42 , H04H20/72 , H04N21/643 , H04N21/2365 , H04H20/57 , H04N21/2362 , H04N21/434 , H04J3/16
CPC分类号： H04J3/1682 , H04H20/30 , H04H20/42 , H04H20/57 , H04H20/72 , H04J3/20 , H04N21/2362 , H04N21/2365 , H04N21/23655 , H04N21/4347 , H04N21/64315
摘要： Exact data-rate analysis of the information signal portions to be transmitted in a subsequent transmission cycle per time-division multiplexing process shall be initially omitted. Instead, on the basis of highly accurate estimated values for the subsequent data rates, estimated values for relative waiting times are transmitted, in a current transmission cycle, from the current time slice to the subsequent time slice of the same service. In the subsequent transmission cycle, actual data rates may be set which may deviate from the estimated data rates for the individual information signals, as a result of which predicted time-slice boundaries for the subsequent transmission cycle may shift. However, the potential shift in the time-slice boundaries is subject to several boundary conditions. No time slice of the subsequent transmission cycle can start prior to its signaled estimated starting time. With constant data rates, the estimated time-slice structure and the actual time-slice structure are identical.
摘要翻译：最初省略对每个时分复用处理的后续传输周期中发送的信息信号部分的精确数据速率分析。相反，基于对于后续数据速率的高度精确的估计值，相对等待时间的估计值在当前传输周期中从当前时间片传送到相同服务的后续时间片。在随后的传输周期中，可以设置实际的数据速率，其可能偏离各个信息信号的估计数据速率，其结果是用于后续传输周期的预测时间片边界可能偏移。然而，时间片边界的潜在偏移受到几个边界条件的限制。后续传输周期的时间片段可以在其发出信号的估计开始时间之前开始。以恒定的数据速率，估计时间片结构和实际时间片结构是相同的。

8. 发明授权

US08733664B2 Apparatus and method for supplying an RFID component with energy 有权
标题翻译：用于向RFID组件供应能量的装置和方法
公开(公告)号：US08733664B2
公开(公告)日：2014-05-27
申请号：US13283753
申请日：2011-10-28
申请人： Andreas Loeffler , Uwe Wissendheit , Dina Kuznetsova , Heinz Gerhaeuser
发明人： Andreas Loeffler , Uwe Wissendheit , Dina Kuznetsova , Heinz Gerhaeuser
IPC分类号： G06K19/06 , G06K7/00 , G06K7/08
CPC分类号： G06K19/0723 , G06K19/0707 , G06K19/0712
摘要： An apparatus for supplying an RFID component with energy includes an antenna and an energy store. The energy store stores energy induced into the antenna by an alternating electromagnetic field during a first time interval. In addition, the energy store supplies the RFID component with stored energy in order to maintain its functionality during a later, second time interval if an energy induced by an alternating electromagnetic field during the later, second time interval is not sufficient for supplying the RFID component.
摘要翻译：用于向RFID组件提供能量的设备包括天线和能量存储器。能量存储器在第一时间间隔期间通过交变电磁场存储在天线中感应的能量。此外，能量存储器为RFID组件提供存储的能量，以便在稍后的第二时间间隔期间保持其功能，如果在稍后的第二时间间隔期间由交变电磁场感应的能量不足以供应RFID组件。

9. 发明授权

US07158582B2 Digital I/Q modulator having a predistortion 有权
标题翻译：具有预失真的数字I / Q调制器
公开(公告)号：US07158582B2
公开(公告)日：2007-01-02
申请号：US10221636
申请日：2001-03-02
申请人： Eberhard Gamm , Reiner Retkowski , Gerald Ulbricht , Heinz Gerhaeuser
发明人： Eberhard Gamm , Reiner Retkowski , Gerald Ulbricht , Heinz Gerhaeuser
IPC分类号： H04K1/02
CPC分类号： H03F1/3294 , H04L27/368
摘要： An I/Q modulator processes a time-discrete I/Q signal comprising an I component and a Q component. The I/Q signal is based on a sampling frequency which is equal to four times a carrier frequency of a carrier signal onto which the I/Q signal is modulated. A predistorter of the modulator predistort the I and components with a predistortion signal, which depends on the I and Q components, so as to form a predistorted I component and, in temporal alternation therewith, a predistorted Q components. An adjuster of the modulator adjusts the signs of the predistorted I and Q components so that two temporally successive predistorted components have a first sign and two additional successive predistorted components, which follow the first-mentioned components in time, have a second sign which is the inverse of the first sign, so as to produce therefrom an output signal at an output of the modulator.
摘要翻译： I / Q调制器处理包括I分量和Q分量的时间离散I / Q信号。 I / Q信号基于等于I / Q信号被调制的载波信号的载波频率的四倍的采样频率。调制器的预失真器通过取决于I和Q分量的预失真信号来预失真I和分量，以便形成预失真的I分量，并且在其随时间变化中预失真的Q分量。调制器的调节器调整预失真的I和Q分量的符号，使得两个时间上连续的预失真分量具有第一符号，并且在时间上跟随第一个提到的分量的两个附加的连续预失真分量具有第二个符号，第一符号的反相，从而在调制器的输出处产生输出信号。

10. 发明授权

US06999738B2 Device and method for pre-treating a signal to be transmitted using a non-linear amplifier with an upstream band-pass filter 有权
标题翻译：用于使用具有上行带通滤波器的非线性放大器来预处理要发送的信号的装置和方法
公开(公告)号：US06999738B2
公开(公告)日：2006-02-14
申请号：US10258711
申请日：2001-04-19
申请人： Heinz Gerhaeuser , Rainer Perthold
发明人： Heinz Gerhaeuser , Rainer Perthold
IPC分类号： H04B1/04
CPC分类号： H03F1/3247
摘要： A device for pretreating a signal to be transmitted over a transmission path, wherein the transmission path comprises a band-pass filter whose pass-band width is smaller than a predetermined bandwidth and a non-linear amplifier, includes a linearization means for performing a linearization of the signal to be transmitted before the transmission of the same, such that a non-linearity caused by the non-linear amplifier is counteracted. Further, the device includes a signal-shaping means downstream to the linearization means comprising a frequency response such that the overall frequency response of the signal-shaping means and the band-pass filter corresponds to the frequency response of a filter whose pass-band width is at least equal to the predetermined bandwidth.
摘要翻译：一种用于预处理通过传输路径传输的信号的装置，其中传输路径包括通带宽度小于预定带宽的带通滤波器和非线性放大器，包括用于执行线性化的线性化装置在发送之前要发送的信号，从而抵消由非线性放大器引起的非线性。此外，该装置包括在线性化装置的下游的信号整形装置，其包括频率响应，使得信号整形装置和带通滤波器的总体频率响应对应于滤波器的频率响应，滤波器的通带宽度至少等于预定带宽。

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