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81. 发明授权

US09760745B2 Signal processing device, method of processing signal, and recording medium 有权
公开(公告)号：US09760745B2
公开(公告)日：2017-09-12
申请号：US14157007
申请日：2014-01-16
申请人： Sony Corporation
发明人： Yasuhiro Iida , Kazuhiro Oguchi
IPC分类号： H04Q5/22 , G06K7/10 , H04L7/04 , H04L25/06 , H04L27/06 , H04L27/148
CPC分类号： G06K7/10009 , H04L7/04 , H04L25/061 , H04L27/06 , H04L27/148
摘要： A signal processing device includes: an extraction section configured to extract a signal having a predetermined component from an obtained signal; and a detection section configured to determine a timing of decoding when a modulation part lasting for a first time period and a non-modulation part lasting for a second time period are detected from the signal extracted by the extraction section.

82. 发明申请

US20170195151A1 BLUETOOTH SIGNAL RECEIVING METHOD AND DEVICE USING IMPROVED CARRIER FREQUENCY OFFSET COMPENSATION 有权
公开(公告)号：US20170195151A1
公开(公告)日：2017-07-06
申请号：US15390412
申请日：2016-12-23
申请人： ABOV SEMICONDUCTOR CO., LTD.
发明人： Sang Young Chu , Ki Tae Moon , Suk Kyun Hong
IPC分类号： H04L27/148 , H04L27/22 , H04W4/00
CPC分类号： H04L27/148 , H04L27/0014 , H04L27/144 , H04L27/22 , H04W4/80
摘要： Disclosed herein are a Bluetooth signal receiving device and method. The Bluetooth signal receiving device includes a frequency shift demodulator circuit, a sampler circuit, a training bit pattern discriminator circuit, and a frequency offset compensation circuit. The frequency shift demodulator circuit generates a baseband signal by performing frequency shift demodulation on a received signal, and generates a frequency proportion signal having a value proportional to the frequency of the baseband signal. The sampler circuit generates a plurality of series of bit streams from the frequency proportion signal. The training bit pattern discriminator circuit determines whether the plurality of series of bit streams generated by the sampler circuit satisfies a training bit pattern condition. The frequency offset compensation circuit compensates the frequency proportion signal by using a measured error metric as a effective error metric when the plurality of series of bit streams satisfies the training bit pattern condition.

83. 发明申请

US20160261441A1 METHODS, DEVICES AND SYSTEMS FOR RECEIVING AND DECODING A SIGNAL IN THE PRESENCE OF NOISE USING SLICES AND WARPING 有权
公开(公告)号：US20160261441A1
公开(公告)日：2016-09-08
申请号：US14989409
申请日：2016-01-06
申请人： Proteus Digital Health, Inc.
发明人： Robert Fleming , Cherie Kushner , William H. McAllister , Mark Zdeblick
IPC分类号： H04L27/148 , H04B1/00 , H04L25/08
CPC分类号： H04L27/148 , H04B1/001 , H04L7/042 , H04L25/08 , H04L27/0014 , H04L27/144 , H04L69/22
摘要： A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

84. 发明授权

US09372663B2 Direct digital synthesis of signals using maximum likelihood bit-stream encoding 有权
标题翻译：使用最大似然比特流编码直接数字合成信号
公开(公告)号：US09372663B2
公开(公告)日：2016-06-21
申请号：US13701369
申请日：2012-10-26
申请人： Intel Corporation
发明人： Kameran Azadet
IPC分类号： H04L27/148 , 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： Methods and apparatus are provided for direct synthesis of RF signals using maximum likelihood sequence estimation. An RF digital RF input signal is synthesized by performing maximum likelihood sequence estimation on the digital RF input signal to produce a digital stream, such that after filtering by a prototype filter the produced digital stream produces a substantially minimum error. The substantially minimum error comprises a difference between a digital output of the prototype filter and the digital RF input signal. The digital stream is substantially equal to the input digital RF signal. The digital stream can be applied to an analog restitution filter, and the output of the analog restitution filter comprises an analog RF signal that approximates the digital RF input signal.
摘要翻译：提供了使用最大似然序列估计直接合成RF信号的方法和装置。通过对数字RF输入信号执行最大似然序列估计来合成RF数字RF输入信号以产生数字流，使得在通过原型滤波器滤波之后，所产生的数字流产生基本上最小的误差。基本上最小的误差包括原型滤波器的数字输出和数字RF输入信号之间的差异。数字流基本上等于输入的数字RF信号。数字流可以应用于模拟恢复滤波器，并且模拟恢复滤波器的输出包括近似数字RF输入信号的模拟RF信号。

85. 发明授权

US09276789B2 Demodulator for frequency-shift keyed signals by using the Goertzel algorithm 有权
标题翻译：使用Goertzel算法对频移键控信号进行解调
公开(公告)号：US09276789B2
公开(公告)日：2016-03-01
申请号：US14152034
申请日：2014-01-10
申请人： ABB Technology AG
发明人： Stefan Pook , Olaf Schmidt , Thomas Keul
IPC分类号： H04L27/00 , H04L27/148
CPC分类号： H04L27/148
摘要： Exemplary embodiments relates to a demodulator for frequency-shift keyed signals by using the Goertzel algorithm according to the general recursive calculating rule, where c re = 2 * cos ⁡ ( 2 * π * f g f s ) with the sampling frequency fs and the specified frequency fg. To reduce the mathematical complexity in feed-power-limited devices, it is proposed that the sampling frequency fs is an integral multiple of the frequency fg of a specified discrete spectral component.
摘要翻译：示例性实施例涉及通过使用根据通用递归计算规则的Goertzel算法的频移键控信号的解调器，其中c re = 2 * cos⁡（2 *＆pgr; * fgfs）具有采样频率fs和指定频率 fg。为了降低馈电功率限制器件的数学复杂度，提出采样频率fs是指定离散频谱分量的频率fg的整数倍。

86. 发明授权

US09219512B2 Integrated receiver and integrated circuit having integrated inductors and method therefor 有权
标题翻译：具有集成电感器的集成接收器和集成电路及其方法
公开(公告)号：US09219512B2
公开(公告)日：2015-12-22
申请号：US14612346
申请日：2015-02-03
申请人： Silicon Laboratories Inc.
发明人： Ramin Khoini-Poorfard , Alessandro Piovaccari , Aslamali A. Rafi , Mustafa H. Koroglu , David S. Trager , Abdulkerim L. Coban
IPC分类号： H04B1/06 , H04N5/50 , H04B1/28 , H04B1/30 , H03H11/04 , H04N5/455 , H04L27/148
CPC分类号： H04B1/28 , H03H11/04 , H04B1/30 , H04L27/148 , H04N5/455 , H04N5/50
摘要： In one form, an integrated receiver includes a tracking bandpass filter, a tunable lowpass filter, and a mixer formed on a single integrated circuit chip. The tracking bandpass filter has an input for receiving a radio frequency (RF) input signal, and an output, and comprises a variable capacitor having a capacitance that varies in response to a bandpass frequency control signal, in parallel with an integrated inductor. The integrated inductor comprises a plurality of windings formed in a plurality of metal layers. The tunable lowpass filter has an input coupled to the output of the tracking bandpass filter, and an output and having a tuning input for receiving a cutoff frequency signal. The mixer has a signal input coupled to the output of the tunable lowpass filter, a local oscillator input for receiving a local oscillator signal, and a signal output for providing a converted RF signal.
摘要翻译：在一种形式中，集成接收器包括跟踪带通滤波器，可调谐低通滤波器和形成在单个集成电路芯片上的混频器。跟踪带通滤波器具有用于接收射频（RF）输入信号和输出的输入，并且包括与集成电感器并联的具有响应于带通频率控制信号而变化的电容的可变电容器。集成电感器包括形成在多个金属层中的多个绕组。可调谐低通滤波器具有耦合到跟踪带通滤波器的输出的输入端和输出端，并具有用于接收截止频率信号的调谐输入端。混频器具有耦合到可调谐低通滤波器的输出的信号输入，用于接收本地振荡器信号的本地振荡器输入和用于提供经转换的RF信号的信号输出。

87. 发明申请

US20150358145A1 Apparatus for correcting multipath errors in carrier phase measurements of a navigation receiver 有权
标题翻译：用于校正导航接收机的载波相位测量中的多径误差的装置
公开(公告)号：US20150358145A1
公开(公告)日：2015-12-10
申请号：US14356249
申请日：2013-09-23
申请人： Andrey Vladimirovich Veitsel , Vladimir Victorovich Beloglazov , Victor Abramovich Veitsel
发明人： Andrey Vladimirovich Veitsel , Vladimir Victorovich Beloglazov , Victor Abramovich Veitsel
IPC分类号： H04L7/00 , H04L7/033 , H04B1/16 , H04L27/148
CPC分类号： H04B1/16 , G01S19/29 , H04L27/148
摘要： A correction phase locked loop (CPLL), including a signal processing unit that receives a digitized input signal from a satellite, the signal processing unit comprising (a) a primary correlator and primary discriminator, connected in series and generating a main error signal Z1 from the digitized input signal; (b) a correction correlator and a correction discriminator connected in series and generating a correction signal Z2; and (c) an adder for adding the main error signal Z1 and the correction signal Z2 to produce a common error signal Z. A loop filter filters the common error signal Z to produce a corrected error signal that is used for frequency-phase control of a Numerical Control Oscillator (NCO). The NCO generates two mutually orthogonal output reference signals whose phase is substantially free of multipath errors.
摘要翻译：一种校正锁相环（CPLL），包括从卫星接收数字化输入信号的信号处理单元，所述信号处理单元包括：（a）串联连接的主相位器和初级鉴相器，并产生主误差信号Z1，数字化输入信号; （b）串联连接的校正相关器和校正鉴别器，产生校正信号Z2; 和（c）用于将主误差信号Z1和校正信号Z2相加以产生公共误差信号Z的加法器。环路滤波器对公共误差信号Z进行滤波，以产生用于频率相位控制的校正误差信号数控振荡器（NCO）。 NCO产生两个相互正交的输出参考信号，其相位基本上没有多径误差。

88. 发明申请

US20150071386A1 RECEIVER 有权
标题翻译：接收器
公开(公告)号：US20150071386A1
公开(公告)日：2015-03-12
申请号：US14156012
申请日：2014-01-15
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kentaro Taniguchi , Katsuya Nonin , Kazumi Sato
IPC分类号： H04L27/148
CPC分类号： H04L27/148 , H03G3/3068 , H03G3/3078 , H04L7/10
摘要： According to one embodiment, a receiver, which is configured to receive a radio signal having a preamble including a synchronization pattern and a payload containing data, includes an antenna, a low noise amplifier, a down-conversion module, a variable gain amplifier, an auto gain controller, a synchronization acquisition module, and a demodulator. The antenna is configured to receive the radio signal. The low noise amplifier is configured to amplify an output from the antenna by applying a first variable gain. The down-conversion module is configured to down-convert an output from the low noise amplifier. The variable gain amplifier is configured to amplify an output from the down-conversion module by applying a second variable gain. The auto gain controller is configured to, in accordance with strength of the radio signal, firstly adjust the first variable gain, and after fixing the first variable gain, adjust the second variable gain.
摘要翻译：根据一个实施例，被配置为接收具有包括同步模式的前同步码和包含数据的有效载荷的无线电信号的接收机包括天线，低噪声放大器，下变频模块，可变增益放大器，自动增益控制器，同步采集模块和解调器。天线被配置为接收无线电信号。低噪声放大器被配置为通过施加第一可变增益来放大来自天线的输出。下变频模块被配置为对来自低噪声放大器的输出进行下变频。可变增益放大器被配置为通过施加第二可变增益来放大来自下变频模块的输出。自动增益控制器被配置为根据无线电信号的强度首先调整第一可变增益，并且在固定第一可变增益之后，调整第二可变增益。

89. 发明申请

US20140270015A1 INTER-CARRIER INTERFERENCE PHASE NOISE COMPENSATION BASED ON PHASE NOISE SPECTRUM APPROXIMATION 审中-公开
标题翻译：基于相位噪声谱逼近的互操作干扰相位噪声补偿
公开(公告)号：US20140270015A1
公开(公告)日：2014-09-18
申请号：US13996793
申请日：2012-06-28
申请人： Vladimir Kravtsov , Michael Genossar , Alexey Khoryaev , Artyom Lomayev
发明人： Vladimir Kravtsov , Michael Genossar , Alexey Khoryaev , Artyom Lomayev
IPC分类号： H04B1/12 , H04L27/148
CPC分类号： H04B1/12 , H04L25/03821 , H04L27/148 , H04L27/2647 , H04L2025/03414
摘要： An approach is provided to compensate for inter-carrier interference caused by phase noise in a transmitted or received signal. The approach involves causing an estimation of one or more phase noise spectrum taps that cause inter-carrier interference in a received signal. The approach also involves causing an approximation of an instantaneous phase noise spectrum by a low order finite impulse response filter based on the estimated one or more phase noise spectrum taps. The approach additionally involves determining a de-convolution filter having two or more filter coefficients for one or more orthogonal frequency-division multiplexing symbols associated with the received signal. The approach further involves causing the de-convolution filter to be matched to the approximated instantaneous phase noise spectrum. The approach also involves causing the inter-carrier interference caused by phase noise to be compensated for based on a de-convolution procedure that applies the de-convolution filter to the one or more orthogonal frequency-division multiplexing symbols.
摘要翻译：提供了一种方法来补偿由发送或接收信号中的相位噪声引起的载波间干扰。该方法包括对在接收信号中引起载波间干扰的一个或多个相位噪声频谱抽头进行估计。该方法还涉及通过基于估计的一个或多个相位噪声频谱抽头的低阶有限脉冲响应滤波器来引起瞬时相位噪声谱的近似。该方法还涉及确定具有用于与接收信号相关联的一个或多个正交频分复用符号的两个或多个滤波器系数的去卷积滤波器。该方法还涉及使解卷积滤波器与近似的瞬时相位噪声谱匹配。该方法还包括基于将去卷积滤波器应用于一个或多个正交频分复用符号的去卷积过程来导致由相位噪声引起的载波间干扰来补偿。

90. 发明申请

US20140016727A1 LOW PHASE-NOISE INDIRECT FREQUENCY SYNTHESIZER 有权
标题翻译：低相位噪声间接频率合成器
公开(公告)号：US20140016727A1
公开(公告)日：2014-01-16
申请号：US14008996
申请日：2012-03-20
申请人： Herve Simon
发明人： Herve Simon
IPC分类号： H04L27/148
CPC分类号： H04L27/148 , H03D7/161 , H03L7/185 , H03L7/23 , H03L2207/06
摘要： A low phase noise frequency synthesizer, comprising, arranged in series, a first mixer receiving a reference signal at a reference frequency Fr, a loop filter and a voltage-controlled oscillator delivering a microwave signal at a second frequency FO slaved to a multiple of reference frequency Fr, further comprises: means of multiplication of the frequency FO of said microwave signal by a factor N strictly greater than 1, means of correction of the frequency N.FO of the output signal of the multiplication means configured to restore frequency N.FO to an interval [FOmin, FOmax] where output frequency FO would vary if multiplication factor N=1, means of division of the frequency Fj of the output signal of the correction means by a factor equal to the expected ratio between frequency Fj and reference frequency Fr, the frequency division means being connected at output to the second input of the first mixer.
摘要翻译：一种低相位噪声频率合成器，包括串联布置的第一混频器，以参考频率Fr接收参考信号;环路滤波器;以及电压控制振荡器，其以第二频率将信号传递给从属于参考频率频率Fr还包括：将所述微波信号的频率FO乘以严格大于1的因子N的装置，用于校正被配置为恢复频率N.FO的乘法装置的输出信号的频率N.FO的装置到间隔[FOmin，FOmax]，其中如果乘数N = 1，输出频率FO将变化，则校正装置的输出信号的频率Fj除以频率Fj和参考频率之间的预期比率的因子 Fr，分频装置在输出端连接到第一混频器的第二输入端。

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