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1. 发明授权

US08565681B2 Systems, methods, and apparatuses for reducing interference at the front-end of a communications receiving device 有权
标题翻译：用于减少通信接收设备前端干扰的系统，方法和设备
公开(公告)号：US08565681B2
公开(公告)日：2013-10-22
申请号：US12731859
申请日：2010-03-25
申请人： Andrew Joo Kim , Yunseo Park , Seongmo Yim , Youngsik Hur
发明人： Andrew Joo Kim , Yunseo Park , Seongmo Yim , Youngsik Hur
IPC分类号： H04B1/00 , H04B1/44
CPC分类号： H04B1/525
摘要： Embodiments of the invention may provide for reducing interference in the front-end of a communications receiver. The cancellation circuitry may be utilized in conjunction with a preliminary rejection filter for improved rejection of out-of-band interference from other radio services or circuitry. The cancellation circuit may be placed in parallel with the preliminary rejection filter and may enhance suppression at the interference frequency by matching the gain and phase of the preliminary rejection filter prior to subtracting the matched signal from the preliminary rejection filter output. The cancellation circuit need not necessary know beforehand the characteristics of the preliminary rejection filter, the interference source, or the coupling mechanism, as it may adapt to unknown or varying interferers by adapting the matching gain and phase values based on the output of the preliminary rejection filter at tap points occurring both before and after application of the cancellation signal.
摘要翻译：本发明的实施例可以提供减少通信接收机前端的干扰。消除电路可以与预备拒绝滤波器一起使用，以改善对来自其他无线电业务或电路的带外干扰的抑制。取消电路可以与预排斥滤波器并联放置，并且可以在从预备阻滤波器输出中减去匹配信号之前匹配预滤波滤波器的增益和相位来增强干扰频率下的抑制。消除电路不需要事先知道预备扼流滤波器，干扰源或耦合机构的特性，因为它可以通过基于初步抑制的输出来适配匹配增益和相位值来适应未知或变化的干扰源在应用消除信号之前和之后发生的抽头点处的滤波器。

2. 发明申请

US20110171922A1 SYSTEMS, METHODS, AND APPARATUSES FOR REDUCING INTERFERENCE AT THE FRONT-END OF A COMMUNICATIONS RECEIVING DEVICE 有权
公开(公告)号：US20110171922A1
公开(公告)日：2011-07-14
申请号：US12731840
申请日：2010-03-25
申请人： Andrew Joo Kim , Yunseo Park , Seongmo Yim , Youngsik Hur
发明人： Andrew Joo Kim , Yunseo Park , Seongmo Yim , Youngsik Hur
IPC分类号： H04B1/10
CPC分类号： H04B1/525
摘要： Embodiments of the invention may provide for reducing interference in the front-end of a communications receiver. The cancellation circuitry may be utilized in conjunction with a preliminary rejection filter for improved rejection of out-of-band interference from other radio services or circuitry. The cancellation circuit may be placed in parallel with the preliminary rejection filter and may enhance suppression at the interference frequency by matching the gain and phase of the preliminary rejection filter prior to subtracting the matched signal from the preliminary rejection filter output. The cancellation circuit need not necessary know beforehand the characteristics of the preliminary rejection filter, the interference source, or the coupling mechanism, as it may adapt to unknown or varying interferers by adapting the matching gain and phase values based on the output of the preliminary rejection filter at tap points occurring both before and after application of the cancellation signal.

3. 发明授权

US08521090B2 Systems, methods, and apparatuses for reducing interference at the front-end of a communications receiving device 有权
公开(公告)号：US08521090B2
公开(公告)日：2013-08-27
申请号：US12731840
申请日：2010-03-25
申请人： Andrew Joo Kim , Yunseo Park , Seongmo Yim , Youngsik Hur
发明人： Andrew Joo Kim , Yunseo Park , Seongmo Yim , Youngsik Hur
IPC分类号： H04B1/00 , H04B1/44
CPC分类号： H04B1/525
摘要： Embodiments of the invention may provide for reducing interference in the front-end of a communications receiver. The cancellation circuitry may be utilized in conjunction with a preliminary rejection filter for improved rejection of out-of-band interference from other radio services or circuitry. The cancellation circuit may be placed in parallel with the preliminary rejection filter and may enhance suppression at the interference frequency by matching the gain and phase of the preliminary rejection filter prior to subtracting the matched signal from the preliminary rejection filter output. The cancellation circuit need not necessary know beforehand the characteristics of the preliminary rejection filter, the interference source, or the coupling mechanism, as it may adapt to unknown or varying interferers by adapting the matching gain and phase values based on the output of the preliminary rejection filter at tap points occurring both before and after application of the cancellation signal.

4. 发明申请

US20110171920A1 SYSTEMS, METHODS, AND APPARATUSES FOR REDUCING INTERFERENCE AT THE FRONT-END OF A COMMUNICATIONS RECEIVING DEVICE 有权
标题翻译：用于减少通信接收设备前端干扰的系统，方法和装置
公开(公告)号：US20110171920A1
公开(公告)日：2011-07-14
申请号：US12731859
申请日：2010-03-25
申请人： Andrew Joo Kim , Yunseo Park , Seongmo Yim , Youngsik Hur
发明人： Andrew Joo Kim , Yunseo Park , Seongmo Yim , Youngsik Hur
IPC分类号： H04B1/06
CPC分类号： H04B1/525
摘要： Embodiments of the invention may provide for reducing interference in the front-end of a communications receiver. The cancellation circuitry may be utilized in conjunction with a preliminary rejection filter for improved rejection of out-of-band interference from other radio services or circuitry. The cancellation circuit may be placed in parallel with the preliminary rejection filter and may enhance suppression at the interference frequency by matching the gain and phase of the preliminary rejection filter prior to subtracting the matched signal from the preliminary rejection filter output. The cancellation circuit need not necessary know beforehand the characteristics of the preliminary rejection filter, the interference source, or the coupling mechanism, as it may adapt to unknown or varying interferers by adapting the matching gain and phase values based on the output of the preliminary rejection filter at tap points occurring both before and after application of the cancellation signal.
摘要翻译：本发明的实施例可以提供减少通信接收机前端的干扰。消除电路可以与预备拒绝滤波器一起使用，以改善对来自其他无线电业务或电路的带外干扰的抑制。取消电路可以与预排斥滤波器并联放置，并且可以在从预备阻滤波器输出中减去匹配信号之前匹配预滤波滤波器的增益和相位来增强干扰频率下的抑制。消除电路不需要事先知道预备扼流滤波器，干扰源或耦合机构的特性，因为它可以通过基于初步抑制的输出来适配匹配增益和相位值来适应未知或变化的干扰源在应用消除信号之前和之后发生的抽头点处的滤波器。

5. 发明授权

US08599970B2 Systems, methods, and apparatuses for detecting digital television (DTV) communications signals 失效
标题翻译：用于检测数字电视（DTV）通信信号的系统，方法和装置
公开(公告)号：US08599970B2
公开(公告)日：2013-12-03
申请号：US12945196
申请日：2010-11-12
申请人： Andrew Joo Kim , Seungmok Oh , Matthew Kuhn , Bob Nayar , Youngsik Hur
发明人： Andrew Joo Kim , Seungmok Oh , Matthew Kuhn , Bob Nayar , Youngsik Hur
IPC分类号： H04L27/06 , H04N5/44
CPC分类号： H04N17/004
摘要： A received RF signal is down-converted to a baseband or low-IF digitized signal in order to search for a pilot signal that indicates a presence of a DTV signal such as an ATSC DTV signal. The pilot signal characteristically resides in a fixed frequency range for all valid DTV signals and is extracted by processing the baseband or low-IF signal in multiple stages. The first stage reduces signal information to that pertaining to the frequency band covering all valid pilot frequencies, thereby reducing the sampling rate and computational complexity of subsequent operations. A second stage operates on this reduced rate signal to focus on a series of particular pilot frequencies for interrogation. For each such candidate frequency, the cyclostationarity of the signal is measured and tested for statistical significance relative to the background energy to yield an effective test that is invariant with respect to background noise level.
摘要翻译：接收的RF信号被下变频为基带或低IF数字信号，以便搜索指示诸如ATSC DTV信号的DTV信号的存在的导频信号。导频信号特征性地驻留在所有有效DTV信号的固定频率范围内，并且通过多级处理基带或低IF信号来提取。第一级将信号信息减少到与覆盖所有有效导频的频带有关的信号，从而降低后续操作的采样率和计算复杂度。第二阶段对该降低的速率信号进行操作，以集中于一系列特定的用于询问的导频。对于每个这样的候选频率，测量和测试信号的相对于背景能量的统计学显着性的信号的周期平稳度，以产生相对于背景噪声水平不变的有效测试。

6. 发明申请

US20110169965A1 SYSTEMS, METHODS, AND APPARATUSES FOR DETECTING DIGITAL TELEVISION (DTV) COMMUNICATIONS SIGNALS 失效
标题翻译：用于检测数字电视（DTV）通信信号的系统，方法和装置
公开(公告)号：US20110169965A1
公开(公告)日：2011-07-14
申请号：US12945196
申请日：2010-11-12
申请人： Andrew Joo Kim , Seungmok Oh , Matthew Kuhn , Bob Nayar , Youngsik Hur
发明人： Andrew Joo Kim , Seungmok Oh , Matthew Kuhn , Bob Nayar , Youngsik Hur
IPC分类号： H04N17/00
CPC分类号： H04N17/004
摘要： Embodiments of the invention may provide systems and methods for detecting the presence a DTV signal such as an ATSC DTV signal. The system and methods may be applied to a received RF signal that has been down-converted to a baseband or low-IF digitized signal. The systems and methods may detect a presence of a DTV signal by searching for its characteristic pilot signal, known to reside in a fixed frequency range for all valid DTV signals. This pilot signal may be extracted by processing the baseband or low-IF signal in multiple stages. The first stage may reduce the signal information to that pertaining to the frequency band covering all valid pilot frequencies and commensurately reduces the sampling rate, and hence computational complexity of subsequent operations. A second stage may then efficiently operate on this reduced rate signal to focus on a series of particular pilot frequencies for interrogation. For each such candidate frequency, the cyclostationarity of the signal may be measured and tested for statistical significance relative to the background energy to yield an effective test that is invariant with respect to the background noise level. In a simplified case, this can correspond to measuring the energy in a very tight candidate subband normalized against the energy from a larger subband. Furthermore, the energy in the candidate subband can be taken as the energy in a Fourier series coefficient.
摘要翻译：本发明的实施例可以提供用于检测诸如ATSC DTV信号之类的DTV信号的存在的系统和方法。系统和方法可以应用于已经被下变频到基带或低IF数字化信号的接收的RF信号。系统和方法可以通过搜索其特征导频信号来检测DTV信号的存在，已知其驻留在所有有效DTV信号的固定频率范围内。可以通过多级处理基带或低IF信号来提取该导频信号。第一级可以将信号信息减少到覆盖所有有效导频的频带，并相应地降低采样速率，从而降低后续操作的计算复杂度。然后，第二级可以有效地对该降低的速率信号进行操作，以集中在一系列特定的导频上进行询问。对于每个这样的候选频率，信号的周期平稳性可以相对于背景能量被测量和测试统计学显着性，以产生相对于背景噪声电平不变的有效测试。在简化的情况下，这可以对应于在相对于较大子带的能量标准化的非常紧密的候选子带中测量能量。此外，可以将候选子带中的能量作为傅里叶级数系数的能量。

7. 发明申请

US20140254730A1 REDUCING ELECTROMAGNETIC RADIATION EMITTED FROM HIGH-SPEED INTERCONNECTS 有权
标题翻译：降低从高速互联发射的电磁辐射
公开(公告)号：US20140254730A1
公开(公告)日：2014-09-11
申请号：US14205082
申请日：2014-03-11
申请人： Andrew Joo Kim , David Anthony Stelliga
发明人： Andrew Joo Kim , David Anthony Stelliga
IPC分类号： H04B1/10
CPC分类号： H04B1/10 , H04B15/00
摘要： Systems and methods reduce electromagnetic interference from high speed data carried by wired interconnects with a radio receiver for at least one protected radio frequency band. A spectral encoder changes the encoding of the high speed data to modify its frequency spectrum and reduce its spectral in the protected frequency band. The wired interconnect carries the spectrally encoded data to its destination, where it is spectrally decoded back to its original form. Spectral encoding may include polynomial scrambling. The data may be encoded with different coding parameters in parallel and the best result selected for communication over the wired interconnect. The coding parameters may be changed depending on which radio receivers and/or protected frequency bands are in use at any given time.
摘要翻译：系统和方法可减少有线互连所携带的高速数据与无线电接收机的电磁干扰，用于至少一个受保护的无线电频段。频谱编码器改变高速数据的编码以修改其频谱并减小其在受保护频带中的频谱。有线互连将频谱编码的数据传送到其目的地，其中它被频谱地解码回其原始形式。频谱编码可以包括多项式加扰。可以并行地编码具有不同编码参数的数据，并且通过有线互连选择用于通信的最佳结果。编码参数可以根据在任何给定时间使用哪个无线电接收机和/或受保护的频带而改变。

8. 发明申请

US20140103979A1 METHOD AND SYSTEM FOR COMPENSATING MODE CONVERSION OVER A COMMUNICATIONS CHANNEL 审中-公开
标题翻译：用于在通信信道中补偿模式转换的方法和系统
公开(公告)号：US20140103979A1
公开(公告)日：2014-04-17
申请号：US14105637
申请日：2013-12-13
申请人： Andrew Joo Kim , Gwilym Luff
发明人： Andrew Joo Kim , Gwilym Luff
IPC分类号： H03K5/12
CPC分类号： H03K5/12 , H04L25/0276 , H04L25/03878
摘要： A circuit can compensate for intra pair skew or mode conversion in a channel by applying a second or corrective mode conversion effect that counters the channel's mode conversion. The circuit can process the common mode signal with a frequency dependent filter prior to injection back into the differential mode. The circuit can implement the reverse mode conversion with passive circuits using integrated resistors and metal oxide semiconductor (MOS) switches. In certain embodiments, such actions can proceed effectively without necessarily consuming active power.
摘要翻译：电路可以通过应用对信道的模式转换进行计数的第二或校正模式转换效应来补偿信道中的帧内偏移或模式转换。电路可以在注入到差分模式之前用频率相关滤波器处理共模信号。该电路可以使用集成电阻器和金属氧化物半导体（MOS）开关实现无源电路的反向模式转换。在某些实施例中，这样的动作可以有效地进行，而不一定消耗有功功率。

9. 发明授权

US08605566B2 Method and system for signal emulation 有权
标题翻译：信号仿真方法和系统
公开(公告)号：US08605566B2
公开(公告)日：2013-12-10
申请号：US12868190
申请日：2010-08-25
申请人： Bruce C. Schmukler , Arvind Raghavan , Ziba Nami , Jyothi Emmanuel Peddi , Andrew Joo Kim , Michael G. Vrazel , Charles E. Summers
发明人： Bruce C. Schmukler , Arvind Raghavan , Ziba Nami , Jyothi Emmanuel Peddi , Andrew Joo Kim , Michael G. Vrazel , Charles E. Summers
IPC分类号： H04B3/20
CPC分类号： H03H11/265 , H03H15/00 , H03H2015/007 , H04B3/23 , H04B3/238 , H04B3/32 , H04J1/12
摘要： A circuit can process a sample of a signal to emulate, simulate, or model an effect on the signal. Thus, an emulation circuit can produce a representation of a real-world signal transformation by processing the signal according to one or more signal processing parameters that are characteristic of the real-world signal transformation. The emulation circuit can apply analog signal processing and/or mixed signal processing to the signal. The signal processing can comprise feeding the signal through two signal paths, each having a different delay, and creating a weighted sum of the outputs of the two signal paths. The signal processing can also (or alternatively) comprise routing the signal through a network of delay elements, wherein a bank of switching or routing elements determines the route and thus the resulting delay.
摘要翻译：电路可以处理信号的样本以对信号进行模拟，模拟或建模。因此，仿真电路可以通过根据作为真实世界信号变换的特征的一个或多个信号处理参数处理信号来产生现实世界信号变换的表示。仿真电路可以对信号应用模拟信号处理和/或混合信号处理。信号处理可以包括通过两个信号路径馈送信号，每个信号路径具有不同的延迟，并且产生两个信号路径的输出的加权和。信号处理还可以（或者可选地）包括通过延迟元件的网络路由信号，其中一组交换或路由元件确定路由并且因此确定所得到的延迟。

10. 发明申请

US20120149306A1 Reducing Signal Interference 失效
标题翻译：减少信号干扰
公开(公告)号：US20120149306A1
公开(公告)日：2012-06-14
申请号：US13397001
申请日：2012-02-15
申请人： Edward Gebara , Andrew Joo Kim , Joy Laskar , Anthony Stelliga , Emmanouil M. Tentzeris
发明人： Edward Gebara , Andrew Joo Kim , Joy Laskar , Anthony Stelliga , Emmanouil M. Tentzeris
IPC分类号： H04B15/00 , H04B1/00
CPC分类号： H04B1/123 , H04B1/7103
摘要： A method for interference suppression, including receiving a sample of an aggressor communication signal from a sensor embedded in a flex circuit, emulating interference that the aggressor communication signal imposes on a victim communication signal, and suppressing the imposed interference in response to applying the emulated interference to the victim communication signal. In other aspects, the flex circuit comprises a plurality of traces running substantially parallel to one another along a surface of the flex circuit, and the sensor comprises one of the plurality of traces and one of a plurality of traces of another flex circuit. In still other aspects, the flex circuit comprises a plurality of traces running substantially parallel to one another and the sensor comprises a trace of the flex circuit running perpendicular to the plurality of traces running substantially parallel to one another.
摘要翻译：一种用于干扰抑制的方法，包括从嵌入在柔性电路中的传感器接收侵入者通信信号的样本，模拟侵扰者通信信号对受害者通信信号施加的干扰，以及响应于施加模拟干扰而抑制施加的干扰对受害者通信信号。在其他方面，柔性电路包括沿着柔性电路的表面基本上彼此平行地延伸的多条迹线，并且传感器包括多条迹线中的一条和另一条柔性电路的多条迹线之一。在另外的方面，柔性电路包括基本上彼此平行地延伸的多个迹线，并且传感器包括垂直于基本上彼此平行地延伸的多个迹线垂直运行的柔性电路的迹线。

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