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41. 发明授权

US09712211B2 Quadrature demodulator for a very high bit rate RFID receiver 有权
公开(公告)号：US09712211B2
公开(公告)日：2017-07-18
申请号：US15204310
申请日：2016-07-07
申请人： Commissariat A L'Energie Atomique et aux Energies Alternatives
发明人： Pierre Courouve , Jean-Baptiste Dore , Manuel Pezzin
IPC分类号： H04L27/22 , H04B5/00 , H03D3/04 , H04L27/233 , H04L27/38 , H04L27/227
CPC分类号： H04B5/0062 , H03D3/007 , H03D3/04 , H04L27/2272 , H04L27/2278 , H04L27/233 , H04L27/3845
摘要： A quadrature demodulator not requiring analog mixers. The demodulation is made using a first integrator and a second integrator which are controlled by square logic signals at twice the frequency of the carrier, the received signal being alternatively integrated by the first integrator and the second integrator over periods of time equal to a quarter period of time of the carrier frequency. The samples of the first and second integrators are sampled and subtracted from each other. The successive samples are combined in a first and a second combining module for providing in-phase and quadrature component samples. This demodulator can further be provided with a synchronization module IQ and a symbol synchronization module.

42. 发明申请

US20170155532A1 WIRELESS RECEIVER 审中-公开
公开(公告)号：US20170155532A1
公开(公告)日：2017-06-01
申请号：US15362426
申请日：2016-11-28
申请人： Paul Dean Alexander
发明人： Paul Dean Alexander
IPC分类号： H04L27/233 , H04L25/03 , H04L25/02
CPC分类号： H04L27/2338 , H04L1/0054 , H04L25/0212 , H04L25/0258 , H04L25/03006 , H04L25/067 , H04L2025/03624
摘要： The present invention relates to a method and apparatus for demodulation in a wireless communications system transmitted across a wireless communications channel. The described wireless receiver includes a first antenna for receiving a wireless signal including a symbol transmitted across a wireless communications channel perceived by the first antenna, an observation modifier for generating a modified observation (y) of the symbol based on a product of the received observation (r) and the complex conjugate of a channel estimate (h*), a log-likelihood ratio (LLR) module generating log-likelihood ratios (LLRs) based on the modified observation and the channel estimate, and a maximum-likelihood-based decoder for decoding the symbol based on the LLRs.

43. 发明授权

US09654318B2 Apparatus and method for switching between receivers in communication system 有权
公开(公告)号：US09654318B2
公开(公告)日：2017-05-16
申请号：US14625163
申请日：2015-02-18
申请人： Samsung Electronics Co., Ltd.
发明人： Minh Viet Nguyen , Sai Subramany Amthoota , Kwang-Chul Kim , Hun-Kee Kim
IPC分类号： H04L1/00 , H04L27/00 , H04L27/22 , H04L27/233 , H04J11/00 , H04L27/20
CPC分类号： H04L27/0008 , H04J11/0046 , H04L1/0036 , H04L27/0012 , H04L27/2017 , H04L27/2089 , H04L27/22 , H04L27/2334
摘要： An apparatus for switching between receivers according to a characteristic of a received signal in a communication system includes a radio frequency unit that modulates at least two signals received from transmission devices, and a Channel Impulse Response (CIR) shape comparison unit that determines characteristics of the modulated signals by using a CIR and selects a receiver according to the determined characteristics of the modulated signals.

44. 发明授权

US09612794B2 Combined RF equalizer and I/Q imbalance correction 有权
公开(公告)号：US09612794B2
公开(公告)日：2017-04-04
申请号：US13661355
申请日：2012-10-26
申请人： Intel Corporation
发明人： Kameran Azadet , Joseph H. Othmer , Meng-Lin Yu
IPC分类号： H04B1/04 , H04L1/00 , H04B1/62 , H04L25/02 , H03F1/32 , H04B1/00 , G06F5/01 , H04L27/233 , G06F9/30 , H04L25/03 , H03M3/00 , H03F1/02 , H03F3/189 , H03F3/24
CPC分类号： G06F9/3001 , G06F5/01 , G06F9/30036 , G06F17/15 , H03F1/0288 , H03F1/3241 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2201/3209 , H03F2201/3212 , H03F2201/3224 , H03F2201/3233 , H03H17/06 , H03M3/30 , H04B1/0003 , H04B1/0475 , H04B1/62 , H04B2001/0408 , H04L1/0054 , H04L25/02 , H04L25/03 , H04L25/03178 , H04L25/03216 , H04L25/4917 , H04L27/2334
摘要： Software implementations are provided for performing IQ imbalance correction and/or RF equalization. An input signal, x, is processed in software by executing a vector convolution instruction to apply the input signal, x, to a first complex FIR filter that performs one or more of RF equalization and IQ imbalance correction; and executing a vector convolution instruction to apply a conjugate x* of the input signal, x, to a second complex FIR filter that performs the one or more of RF equalization and IQ imbalance correction, wherein the second complex FIR filter is in parallel with the first complex FIR filter. The first and second complex FIR filters have complex coefficients and the input signal comprises a complex signal.

45. 发明申请

US20160286012A1 METHOD FOR TRANSMITTING AND RECEIVING FRAME, AND WIRELESS DEVICE IMPLEMENTING THE SAME METHOD 有权
标题翻译：发送和接收帧的方法以及实现相同方法的无线设备
公开(公告)号：US20160286012A1
公开(公告)日：2016-09-29
申请号：US15081578
申请日：2016-03-25
申请人： NEWRACOM, INC.
发明人： Heejung YU , Daewon LEE , Young Hoon KWON , Sungho MOON , Yujin NOH
IPC分类号： H04L29/08 , H04L27/233 , H04W84/12 , H04L27/26
CPC分类号： H04L69/321 , H04L1/08 , H04L5/0044 , H04L5/0046 , H04L5/0048 , H04L27/2338 , H04L27/2634 , H04L27/2646 , H04L69/323 , H04L2027/0026
摘要： A method for transmitting a frame is provided by a device in a wireless communication network. The device compensates a carrier frequency using a value of carrier frequency offset (CFO), and transmits a frame with the compensated carrier frequency to a receiver. The value of the CFO is indicated in TXVECTOR. A method for transmitting a frame is provided by a device in a wireless communication network. The device allocates data tones for a last symbol based on a payload size, generates the last symbol having repeated waveforms and transmits a frame including at least one period waveform of the repeated waveforms in the last symbol.
摘要翻译：用于发送帧的方法由无线通信网络中的设备提供。该装置使用载波频率偏移（CFO）的值来补偿载波频率，并将具有经补偿的载波频率的帧发送到接收机。 CFO的值在TXVECTOR中指示。用于发送帧的方法由无线通信网络中的设备提供。设备基于有效载荷大小分配最后一个符号的数据音调，产生具有重复波形的最后一个符号，并发送包括最后一个符号中的重复波形的至少一个周期波形的帧。

46. 发明授权

US09438458B1 Method and apparatus for converting analog radio frequency (RF) signals to the digital domain in a multiband and multicarrier wireless communication system 有权
标题翻译：在多频段和多载波无线通信系统中将模拟射频（RF）信号转换为数字域的方法和装置
公开(公告)号：US09438458B1
公开(公告)日：2016-09-06
申请号：US14570640
申请日：2014-12-15
申请人： PMC-SIERRA US, INC.
发明人： Ryan Santa , Bernard Guay
IPC分类号： H04L27/26 , H04B1/707 , H04B1/00 , H04B1/7115 , H04L25/03 , H04L27/233
CPC分类号： H04L27/2647 , H04B1/0017 , H04B1/707 , H04B1/7115 , H04L5/001 , H04L25/03012 , H04L27/2334
摘要： A method and system are provided for converting wideband analog radio frequency (RF) signals to a digital domain. In an implementation, the system comprises: an amplifier for receiving and amplifying a first wideband analog RF signal comprising one or more first narrowband analog RF signals, each first narrowband analog RF signal occupying a distinct non-overlapping spectral band within a spectrum of the first wideband analog RF signal; N down converter modules; N analog-to-digital converters (ADCs); and a cross-connect for connecting any one of the N down converter modules to one or more of the N ADCs to analog-to-digital convert only the first narrowband analog RF signals occupying the distinct non-overlapping spectral bands. The method and system of the present disclosure track the occupied bandwidth of the narrowband analog RF signals that make up a wideband analog RF signal rather than a total bandwidth of the wideband analog RF signal.
摘要翻译：提供了一种用于将宽带模拟射频（RF）信号转换为数字域的方法和系统。在一个实现中，该系统包括：放大器，用于接收和放大包括一个或多个第一窄带模拟RF信号的第一宽带模拟RF信号，每个第一窄带模拟RF信号占据第一窄带模拟RF信号的频谱内的不同的非重叠频谱带宽带模拟RF信号; N档转换器模块; N个模数转换器（ADC）; 以及用于将N个下变频器模块中的任一个连接到N个ADC中的一个或多个以进行模数转换的交叉连接器，仅转换占据不同的非重叠频谱带的第一窄带模拟RF信号。本公开的方法和系统跟踪构成宽带模拟RF信号的窄带模拟RF信号的占用带宽，而不是宽带模拟RF信号的总带宽。

47. 发明授权

US09325551B2 Removal of irrelevance in phase-modulated digital carrier-signals 有权
标题翻译：去除相位调制数字载波信号中的不相关性
公开(公告)号：US09325551B2
公开(公告)日：2016-04-26
申请号：US14133106
申请日：2013-12-18
申请人： Intel Corporation
发明人： Stefan Meier , Matthias Schoebinger , Lajos Gazsi
IPC分类号： H04L27/20 , H04L27/233
CPC分类号： H04L27/2337 , H04L27/2003
摘要： This application discusses, among other things, apparatus and methods for suppressing irrelevant edges of a phase modulated signal. In an example, a method can include receiving phase modulation information at a suppression circuit of a communication device, computing distances between transitions of a phase modulation signal, the phase modulation signal associated with the phase modulation information, comparing the distances to a threshold distance at a comparator of the suppression circuit, and suppressing a first transition of the phase modulation signal associated with the phase modulation information if a first distance is less than the threshold distance.
摘要翻译：除了别的以外，本申请还讨论了用于抑制相位调制信号的不相关边缘的装置和方法。在一个示例中，方法可以包括在通信设备的抑制电路处接收相位调制信息，计算相位调制信号的转变之间的距离，与相位调制信息相关联的相位调制信号，将距离与阈值距离进行比较抑制电路的比较器，并且如果第一距离小于阈值距离，则抑制与相位调制信息相关联的相位调制信号的第一转换。

48. 发明授权

US09292255B2 Multi-stage crest factor reduction (CFR) for multi-channel multi-standard radio 有权
标题翻译：用于多通道多标准无线电的多级波峰因数降低（CFR）
公开(公告)号：US09292255B2
公开(公告)日：2016-03-22
申请号：US13661351
申请日：2012-10-26
申请人： Intel Corporation
发明人： Kameran Azadet , Albert Molina
IPC分类号： H04K1/02 , H04L25/03 , H04L25/49 , G06F5/01 , H04B1/04 , H04L1/00 , H04L27/233 , H04B1/62 , G06F9/30 , H04L25/02 , H03M3/00 , H03F1/02 , H03F1/32 , H03F3/189 , H03F3/24 , H04B1/00
CPC分类号： G06F9/3001 , G06F5/01 , G06F9/30036 , G06F17/15 , H03F1/0288 , H03F1/3241 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2201/3209 , H03F2201/3212 , H03F2201/3224 , H03F2201/3233 , H03H17/06 , H03M3/30 , H04B1/0003 , H04B1/0475 , H04B1/62 , H04B2001/0408 , H04L1/0054 , H04L25/02 , H04L25/03 , H04L25/03178 , H04L25/03216 , H04L25/4917 , H04L27/2334
摘要： Multi-stage crest factor reduction (CFR) techniques are provided for multi-channel multi-standard radio (MSR). A multi-stage crest factor reduction method comprises applying one or more data samples associated with at least one channel of a first technology type to a first individual crest factor reduction block; applying one or more data samples associated with at least one channel of a second technology type to a second individual crest factor reduction block; aggregating outputs of the first and second individual crest factor reduction blocks to generate an aggregated output; and applying the aggregated output to a composite crest factor reduction block. The individual crest factor reduction blocks can be implemented using a sampling rate appropriate for the corresponding technology type. The composite crest factor reduction block operates at a higher sampling rate than the individual crest factor reduction blocks.
摘要翻译：为多通道多标准无线电（MSR）提供多级波峰因数降低（CFR）技术。多级波峰因数降低方法包括将与第一技术类型的至少一个信道相关联的一个或多个数据样本应用于第一单独波峰因数减少块; 将与第二技术类型的至少一个信道相关联的一个或多个数据样本应用于第二单独波峰因子减小块; 聚合第一和第二单独波峰因子减小块的输出以生成聚合输出; 并将聚合输出应用于复合波峰因数减少块。可以使用适合于相应技术类型的采样率来实现各个波峰因数减小块。复合波峰因数降低块以比单个波峰因数减小块更高的采样速率运行。

49. 发明授权

US09280315B2 Vector processor having instruction set with vector convolution function for fir filtering 有权
标题翻译：矢量处理器具有用于冷杉滤波的矢量卷积函数的指令集
公开(公告)号：US09280315B2
公开(公告)日：2016-03-08
申请号：US13701376
申请日：2012-10-26
申请人： Intel Corporation
发明人： Kameran Azadet , Meng-Lin Yu , Joseph Othmer , Joseph Williams , Albert Molina
IPC分类号： G06F17/15 , G06F5/01 , H04B1/04 , H04L1/00 , H04L27/233 , H04B1/62 , G06F9/30 , H04L25/02 , H04L25/03 , H03M3/00 , H03F1/02 , H03F1/32 , H03F3/189 , H03F3/24 , H04B1/00
CPC分类号： G06F9/3001 , G06F5/01 , G06F9/30036 , G06F17/15 , H03F1/0288 , H03F1/3241 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2201/3209 , H03F2201/3212 , H03F2201/3224 , H03F2201/3233 , H03H17/06 , H03M3/30 , H04B1/0003 , H04B1/0475 , H04B1/62 , H04B2001/0408 , H04L1/0054 , H04L25/02 , H04L25/03 , H04L25/03178 , H04L25/03216 , H04L25/4917 , H04L27/2334
摘要： A vector processor is provided having an instruction set with a vector convolution function. The disclosed vector processor performs a convolution function between an input signal and a filter impulse response by obtaining a vector comprised of at least N1+N2-1 input samples; obtaining N2 time shifted versions of the vector (including a zero shifted version), wherein each time shifted version comprises N1 samples; and performing a weighted sum of the time shifted versions of the vector by a vector of N1 coefficients; and producing an output vector comprising one output value for each of the weighted sums. The vector processor performs the method, for example, in response to one or more vector convolution software instructions having a vector input. The vector can comprise a plurality of real or complex input samples and the filter impulse response can be expressed using a plurality of coefficients that are real or complex.
摘要翻译：提供了具有具有向量卷积函数的指令集的向量处理器。所公开的向量处理器通过获得包括至少N1 + N2-1个输入样本的向量来执行输入信号和滤波器脉冲响应之间的卷积函数; 获得矢量的N2时移版本（包括零位版本），其中每个时移版本包括N1个样本; 以及通过N1系数的向量来执行向量的时移版本的加权和; 以及产生包括每个加权和的一个输出值的输出向量。矢量处理器例如响应于具有矢量输入的一个或多个向量卷积软件指令来执行该方法。矢量可以包括多个实数或复数输入样本，并且可以使用实数或复数的多个系数来表示滤波器脉冲响应。

50. 发明授权

US09276792B1 Phase-domain digitizer 有权
标题翻译：相域数字化仪
公开(公告)号：US09276792B1
公开(公告)日：2016-03-01
申请号：US14544841
申请日：2015-02-24
申请人： Stichting voor de Technische Wetenschappen
发明人： Kofi A. A. Makinwa , Rui Quan
IPC分类号： H04L27/00 , H04L27/233 , H04L7/00
CPC分类号： H04L27/2334 , G01F1/66 , H03L1/022 , H03L7/00 , H03L7/0814 , H03L7/085 , H03M3/412 , H03M3/464 , H03M3/496
摘要： A phase-domain delta-sigma (ΔΣ) modulator in a phase digitizer determines a demodulated phase error based on a phase-modulated frequency signal, in which a carrier frequency is modulated with a fundamental frequency and an associated phase, and a selected one of a set of reference signals, where the demodulated phase error represents a difference between the phase and a reference phase of the selected one of the set of reference signals. Moreover, a digital filter in the phase-domain ΔΣ modulator filters the demodulated phase error. Furthermore, a latch in the phase-domain ΔΣ modulator provides a bit stream by sampling one or more bits of the filtered demodulated phase error, where an average value of the bit stream represents the phase. Next, control logic in the phase-domain ΔΣ modulator selects the one of the set of reference signals.
摘要翻译：相位数字化仪中的相位Δ-Σ（＆Dgr＆amp; Sgr）调制器基于相位调制频率信号确定解调的相位误差，其中以基频和相关相位对载波频率进行调制，所选择的一组参考信号中的一个，其中解调的相位误差表示所述一组参考信号中的所选择的一个的相位和参考相位之间的差。此外，相域中的数字滤波器＆Dgr; 调制器滤波解调的相位误差。此外，相域中的锁存器＆Dgr; 调制器通过采样滤波的解调相位误差的一个或多个比特来提供比特流，其中比特流的平均值代表相位。接下来，相域中的控制逻辑＆Dgr＆调制器选择该组参考信号中的一个。

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