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1. 发明申请

US20110305304A1 Signal Reception 有权
标题翻译：信号接收
公开(公告)号：US20110305304A1
公开(公告)日：2011-12-15
申请号：US13130928
申请日：2009-11-02
申请人： Chunyang Yu , Andrei Popescu
发明人： Chunyang Yu , Andrei Popescu
IPC分类号： H04L27/06
CPC分类号： H03M13/13 , H03M13/455
摘要： A method of receiving a demodulated waveform according to a protocol in which the waveform represents a block of transmitted bits comprising a first group of bits and a second group of bits, the second group of bits being a function of the first group of bits, the method comprising: sampling the demodulated waveform to recover a first group of sample values corresponding to the first group of transmitted bits and a second group of sample values corresponding to the second group of transmitted bits; assigning bit values to reliable sample values of the first group of sample values; generating a set of candidates for a block of bits corresponding to the demodulated waveform, each candidate comprising a first group of candidate bits and a second group of candidate bits, the first group of candidate bits being generated using the assigned bit values and a combination of bit values unique to that candidate in the set of candidates, and the second group of candidate bits being generated by applying the said function to the first group of candidate bits; performing a correlation operation by determining a correlation between each candidate and the recovered first and second groups of sample values to form a correlation value associated with each candidate; and selecting the candidate associated with the correlation value that is indicative of the strongest degree of correlation between a candidate and the first and second groups of sample values to be the block of bits corresponding to the demodulated waveform.
摘要翻译：根据协议接收解调波形的方法，其中波形表示包括第一组位和第二组位的发送位的块，第二位组是第一组位的函数，方法包括：对解调波形进行采样以恢复对应于第一组发送位的第一组采样值和对应于第二组发送位的第二组采样值; 将位值分配给第一组采样值的可靠采样值; 生成与解调波形相对应的一组比特的候选，每个候选包括第一组候选比特和第二组候选比特，第一组候选比特是使用分配的比特值生成的，并且组合并且通过将所述函数应用于第一组候选比特而产生第二组候选比特; 通过确定每个候选者和恢复的第一和第二组样本值之间的相关性来形成相关操作，以形成与每个候选者相关联的相关值; 以及选择与指示候选与第一和第二组采样值之间的最强相关程度的相关值相关联的候选成为与解调波形相对应的位的块。

2. 发明申请

US20110235760A1 EFFICIENT OFDM PEAK REDUCTION ALGORITHM 有权
标题翻译：有效的OFDM峰值减少算法
公开(公告)号：US20110235760A1
公开(公告)日：2011-09-29
申请号：US13052502
申请日：2011-03-21
申请人： Chunyang Yu , Andrei Popescu
发明人： Chunyang Yu , Andrei Popescu
IPC分类号： H04B1/10
CPC分类号： H04B1/0475 , H04L27/2614
摘要： An efficient method of OFDM peak reduction is described. In an embodiment, a set of the most significant peaks in a symbol of an OFDM signal are identified and then, for each identified peak, a shifted and scaled version of a template cancellation signal is subtracted from the OFDM signal. The template cancellation signal is shifted such that its peak aligns with the identified peak and it is scaled such that it has the opposite phase to the identified peak. No iterative peak search and cancellation is involved in peak reduction, i.e. a cancellation step is not followed by another peak search for the same OFDM symbol. The process is repeated for each symbol in turn and in some embodiments the OFDM signal is up-sampled before it is analyzed to identify the most significant peaks.
摘要翻译：描述了OFDM峰值降低的有效方法。在一个实施例中，识别OFDM信号的符号中的一组最重要的峰值，然后，对于每个识别的峰值，从OFDM信号中减去模板消除信号的偏移和缩放版本。模板消除信号被移位，使得其峰值与识别的峰值对准，并且其被缩放使得其与所识别的峰值具有相反的相位。在峰值降低中不涉及迭代峰值搜索和消除，即消除步骤不跟随相同OFDM符号的另一峰值搜索。依次对每个符号重复该过程，并且在一些实施例中，OFDM信号在被分析之前被上采样以识别最高有效峰。

3. 发明授权

US08861638B2 Transmitter with reduced peak-to-mean amplitude ratio 有权
标题翻译：发射机具有降低的峰值与平均振幅比
公开(公告)号：US08861638B2
公开(公告)日：2014-10-14
申请号：US13245464
申请日：2011-09-26
申请人： Andrei Popescu , Chunyang Yu
发明人： Andrei Popescu , Chunyang Yu
IPC分类号： H04L27/00
CPC分类号： H04L27/2621
摘要： The present application relates to a method for reducing the peak-to-mean amplitude ratio of a transmission signal comprising a plurality of coherent replicated signals, and to a transmitted for transmitting such a signal. The transmission signal is separated into the plurality of coherent replicated signals and one of the plurality of replicated signals is delayed with respect to another of the plurality of replicated signals, either in the time domain by introducing a time delay or in the frequency domain by introducing a phase shift. This has the effect of reducing the coherence of the delayed replicated signal with respect to the other replicated signal, reducing the peak power of the signal and therefore reducing the peak-to-mean amplitude ratio of the transmission signal.
摘要翻译：本申请涉及一种用于降低包括多个相干复制信号的传输信号的峰值与平均幅度比的方法，以及用于传输这种信号的传输信号的方法。发送信号被分离成多个相干复制信号，并且多个复制信号中的一个相对于多个复制信号中的另一个延迟，或者在时域中通过引入时间延迟或在频域中引入相移。这具有减小延迟的复制信号相对于另一个复制信号的相干性的效果，降低了信号的峰值功率，并因此降低了传输信号的峰值 - 平均幅度比。

4. 发明授权

US08699635B2 Frame boundary detection 有权
标题翻译：帧边界检测
公开(公告)号：US08699635B2
公开(公告)日：2014-04-15
申请号：US12617537
申请日：2009-11-12
申请人： Chunyang Yu , Andrei Popescu
发明人： Chunyang Yu , Andrei Popescu
IPC分类号： H03D1/00
CPC分类号： H04L27/2656 , H04L5/0023 , H04L27/2657 , H04L27/2662 , H04L27/2675
摘要： A method of WLAN frame detection in a received signal, wherein the frame comprises first and second training sequences and the method comprises auto-correlating the signal with a delayed version of itself to establish a first frame boundary estimate based on behavior of the autocorrelation result due to the inclusion of the first training sequence in the frame, cross-correlating the signal with a copy of the second training sequence at a range of time offsets in order to generate a first cross-correlation profile, classifying the first cross-correlation profile into one of a number of categories, establishing a second frame boundary estimate from the first cross-correlation profile in a manner dependent upon the category assigned to the first cross-correlation profile and determining a refined frame boundary estimate on the basis of a consideration of the first and second frame boundary estimates. Apparatus for performing the method is also described.
摘要翻译：一种在接收信号中的WLAN帧检测的方法，其中该帧包括第一和第二训练序列，并且该方法包括将该信号与其本身的延迟版本进行自相关，以基于自相关结果的行为建立第一帧边界估计为了将第一训练序列包括在帧中，在时间偏移范围内将信号与第二训练序列的副本互相关，以便产生第一互相关分布，将第一互相关分布分类为多个类别中的一个，以取决于分配给第一互相关分布的类别的方式从第一互相关分布建立第二帧边界估计，并且基于对第一互相关轮廓的考虑来确定精确的帧边界估计第一和第二帧边界估计。还描述了用于执行该方法的装置。

5. 发明授权

US08699590B2 Efficient OFDM peak reduction algorithm 有权
标题翻译：高效的OFDM峰值降低算法
公开(公告)号：US08699590B2
公开(公告)日：2014-04-15
申请号：US13052502
申请日：2011-03-21
申请人： Chunyang Yu , Andrei Popescu
发明人： Chunyang Yu , Andrei Popescu
IPC分类号： H04B1/10
CPC分类号： H04B1/0475 , H04L27/2614
摘要： An efficient method of OFDM peak reduction is described. In an embodiment, a set of the most significant peaks in a symbol of an OFDM signal are identified and then, for each identified peak, a shifted and scaled version of a template cancellation signal is subtracted from the OFDM signal. The template cancellation signal is shifted such that its peak aligns with the identified peak and it is scaled such that it has the opposite phase to the identified peak. No iterative peak search and cancellation is involved in peak reduction, i.e. a cancellation step is not followed by another peak search for the same OFDM symbol. The process is repeated for each symbol in turn and in some embodiments the OFDM signal is up-sampled before it is analyzed to identify the most significant peaks.
摘要翻译：描述了OFDM峰值降低的有效方法。在一个实施例中，识别OFDM信号的符号中的一组最重要的峰值，然后，对于每个识别的峰值，从OFDM信号中减去模板消除信号的偏移和缩放版本。模板消除信号被移位，使得其峰值与识别的峰值对准，并且其被缩放使得其与所识别的峰值具有相反的相位。在峰值降低中不涉及迭代峰值搜索和消除，即消除步骤不跟随相同OFDM符号的另一峰值搜索。依次对每个符号重复该过程，并且在一些实施例中，OFDM信号在被分析之前被上采样以识别最高有效峰。

6. 发明授权

US08649469B2 Signal reception 有权
标题翻译：信号接收
公开(公告)号：US08649469B2
公开(公告)日：2014-02-11
申请号：US13130928
申请日：2009-11-02
申请人： Chunyang Yu , Andrei Popescu
发明人： Chunyang Yu , Andrei Popescu
IPC分类号： H04L27/06
CPC分类号： H03M13/13 , H03M13/455
摘要： A method of receiving a demodulated waveform according to a protocol in which the waveform represents a block of transmitted bits comprising a first group of bits and a second group of bits, the second group of bits being a function of the first group of bits, the method comprising: sampling the demodulated waveform to recover a first group of sample values corresponding to the first group of transmitted bits and a second group of sample values corresponding to the second group of transmitted bits; assigning bit values to reliable sample values of the first group of sample values; generating a set of candidates for a block of bits corresponding to the demodulated waveform, each candidate comprising a first group of candidate bits and a second group of candidate bits, the first group of candidate bits being generated using the assigned bit values and a combination of bit values unique to that candidate in the set of candidates, and the second group of candidate bits being generated by applying the said function to the first group of candidate bits; performing a correlation operation by determining a correlation between each candidate and the recovered first and second groups of sample values to form a correlation value associated with each candidate; and selecting the candidate associated with the correlation value that is indicative of the strongest degree of correlation between a candidate and the first and second groups of sample values to be the block of bits corresponding to the demodulated waveform.
摘要翻译：根据协议接收解调波形的方法，其中波形表示包含第一组位和第二组位的发送位的块，第二位组是第一组位的函数，方法包括：对解调波形进行采样以恢复对应于第一组发送位的第一组采样值和对应于第二组发送位的第二组采样值; 将位值分配给第一组采样值的可靠采样值; 生成与解调波形相对应的一组比特的候选，每个候选包括第一组候选比特和第二组候选比特，第一组候选比特是使用分配的比特值生成的，并且组合并且通过将所述函数应用于第一组候选比特而产生第二组候选比特; 通过确定每个候选者和恢复的第一和第二组样本值之间的相关性来形成相关操作，以形成与每个候选者相关联的相关值; 以及选择与指示候选与第一和第二组采样值之间的最强相关程度的相关值相关联的候选成为与解调波形相对应的位的块。

7. 发明授权

US09203454B2 FM receiver noise reduction 有权
标题翻译： FM接收机降噪
公开(公告)号：US09203454B2
公开(公告)日：2015-12-01
申请号：US13510571
申请日：2010-11-16
申请人： Jacob Sharpe , Andrei Popescu
发明人： Jacob Sharpe , Andrei Popescu
IPC分类号： H04B1/16 , H04B1/3805 , H04B15/06
CPC分类号： H04B1/1676 , H04B1/3805 , H04B15/06
摘要： Apparatus to reduce noise in a stereo FM broadcast received via an antenna, the apparatus comprising: a frequency translator configured to translate the received stereo FM broadcast to an intermediate carrier frequency, a demodulation unit configured to demodulate the translated FM signal so as to form left-plus-right and left-minus-right AM signals, a filter configured to form a filtered signal by filtering one of the AM signals, so as to suppress a sub-band of that signal containing unwanted tones, a summing unit for summing the filtered signal and the other of the left-plus-right and left-minus-right signals to produce a stereo audio signal.
摘要翻译：一种用于减少通过天线接收的立体声FM广播中的噪声的装置，该装置包括：频率转换器，被配置为将所接收的立体声FM广播转换为中间载波频率;解调单元，被配置为解调经翻译的FM信号以形成左 - 左右右AM信号，滤波器，被配置为通过对AM信号之一进行滤波来形成滤波信号，以便抑制包含不需要的音调的信号的子带，求和单元滤波后的信号和左右右右信号中的另一个产生立体声音频信号。

8. 发明授权

US08781007B2 Quantization method for OFDM 有权
标题翻译： OFDM的量化方法
公开(公告)号：US08781007B2
公开(公告)日：2014-07-15
申请号：US13580371
申请日：2010-11-09
申请人： Wei Shi , Andrei Popescu
发明人： Wei Shi , Andrei Popescu
IPC分类号： H04K1/10
CPC分类号： H04L27/2626
摘要： A quantization method for OFDM is described. In an embodiment, the method uses an objective function which is defined as a function of the quantization error of the OFDM signal in frequency summed over data subcarriers. A search algorithm is used to optimize the objective function and the solution found is quantized by rounding. The quantized value of the solution may then be fed back into the objective function to compute a value of that function and if the value is less than the value computed in a previous iteration of the method, the method is repeated using the quantized value of the solution as the new starting point for the search algorithm. If the value of the function is, however, not less than the value computed in a previous iteration, the new solution is discarded and the quantized value of the solution from the previous iteration is output.
摘要翻译：描述OFDM的量化方法。在一个实施例中，该方法使用被定义为在数据子载波上求和的频率中的OFDM信号的量化误差的函数的目标函数。使用搜索算法来优化目标函数，并且通过舍入来量化解决方案。然后，解的量化值可以反馈到目标函数中以计算该函数的值，并且如果该值小于该方法的先前迭代中计算的值，则使用该方法的量化值来重复该方法解决方案作为搜索算法的新起点。但是，如果该函数的值不小于在先前迭代中计算的值，则会丢弃新的解，并输出前一次迭代中的解的量化值。

9. 发明授权

US08774857B2 Schemes for the efficient reception of radio communications signals 有权
标题翻译：有效接收无线电通信信号的方案
公开(公告)号：US08774857B2
公开(公告)日：2014-07-08
申请号：US12784125
申请日：2010-05-20
申请人： James Digby Yarlet Collier , Andrei Popescu , David Chappaz
发明人： James Digby Yarlet Collier , Andrei Popescu , David Chappaz
IPC分类号： H04M1/00 , H04B5/00 , H04B1/00
CPC分类号： H04M1/72572 , H04B1/406 , H04M1/7253 , H04M2250/02 , H04M2250/06 , H04M2250/10 , H04W52/029 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/40
摘要： Receiving a Wi-Fi radio signal using a Bluetooth receiver architecture. Also, adapting a Wi-Fi receiver architecture to constrain a received radio signal to less than the bandwidth of a conveyed Wi-Fi signal for subsequent processing purposes.
摘要翻译：使用蓝牙接收机架构接收Wi-Fi无线电信号。而且，为了随后的处理目的，使Wi-Fi接收机架构适应于将接收到的无线电信号约束到小于传送的Wi-Fi信号的带宽。

10. 发明授权

US08583090B2 Transferring task completion to another device 有权
标题翻译：将任务完成转移到另一个设备
公开(公告)号：US08583090B2
公开(公告)日：2013-11-12
申请号：US11617965
申请日：2006-12-29
申请人： Elina Vartiainen , Andrei Popescu , Virpi Roto , Guido Grassel , Mika Rautava
发明人： Elina Vartiainen , Andrei Popescu , Virpi Roto , Guido Grassel , Mika Rautava
IPC分类号： H04B7/24 , G06F15/16
CPC分类号： G06F9/4856
摘要： A mobile communication device is adapted to identify a task for postponed transfer to a computing device over a local communication link. A similar transfer task function is established on the computing device for receiving the identified task and any required related data. The user is provided with the ability to initiate a task on the mobile communication device and continue or complete the task on a computer.
摘要翻译：移动通信设备适于通过本地通信链路来识别用于延迟传送到计算设备的任务。在计算设备上建立类似的传送任务功能，用于接收所识别的任务和任何所需的相关数据。向用户提供在移动通信设备上发起任务并在计算机上继续或完成任务的能力。

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