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公开(公告)号：US11689393B1
公开(公告)日：2023-06-27
申请号：US17586668
申请日：2022-01-27
Applicant: The Boeing Company
Inventor： Nicholas Mentesana
CPC classification number: H04L25/03261 , H03H21/0001 , H04L25/0212
Abstract: Examples provide a method and apparatus for an analog bi-quad infinite impulse response (IIR) filter. An amplifier generates a positive output signal corresponding to a received RF signal and a negative output signal. A set of selectively switchable time-delay circuits associated with a positive arm of the filter causes a predetermined delay corresponding to a desired sample frequency. A first set of configurable variable gain amplifiers amplify the positive output signal to establish a set of positive coefficients. A set of selectively switchable time-delay circuits associated with a negative arm of the filter causes a predetermined delay. A delayed negative output signal is generated which is amplified by a second set of configurable variable gain amplifiers to establish a set of negative coefficients. A set of power combiners function as sum junctions to combine the delayed positive output signals and the delayed negative output signals into a single output signal.
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公开(公告)号：US09716482B2
公开(公告)日：2017-07-25
申请号：US15130701
申请日：2016-04-15
Applicant: Clover Network, Inc.
Inventor： Arvind Antonio de Menezes Pereira , Alvin Dominguez , Gary Wagner
CPC classification number: H03H7/03 , H03H7/0115 , H03H7/0138 , H03H7/0153 , H03H7/0161 , H03H7/17 , H03H21/0001 , H03H2021/0098
Abstract: Various methods and devices that involve tuning filters are disclosed. A disclosed method for tuning a filter comprises trimming a center frequency of the filter. The method also comprises trimming an input signal magnitude of the filter. The method also comprises measuring a performance metric of the filter after trimming the center frequency of the filter and the input signal magnitude of the filter. The method also comprises repeating the trimming steps and the measuring step until the filter is tuned for a first physical test condition. A disclosed device that includes a filter also includes first and second trimming circuits that trim the center frequency and input signal magnitude of the filter. A disclosed system includes a motor to transfer a transmitting device from a first physical test condition to a second physical test condition relative to a proximity coupling device with a filter.
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公开(公告)号：US09515634B1
公开(公告)日：2016-12-06
申请号：US15044690
申请日：2016-02-16
Applicant: Marvell International Ltd.
Inventor： Kok-Wui Cheong
CPC classification number: H04B1/10 , H03H21/0001
Abstract: Embodiments provide a receiver comprising an input coupled to a communication channel for receiving an input signal from the communication channel, a first processing filter coupled to the input, and a first level estimation module coupled to the first processing filter to estimate a first level of the input signal based upon the first processing filter. The receiver further comprises a second processing filter coupled to the input, a second level estimation module coupled to the second processing filter to estimate a second level of the input signal based upon the second processing filter, and a control module coupled to (i) the first level estimation module and (ii) the second level estimation module, wherein the control module includes logic configured to select an analog pre-filter for the input signal based upon (i) the first level of the input signal and (ii) the second level of the input sign.
Abstract translation: 实施例提供了一种接收机，其包括耦合到通信信道的输入，用于从通信信道接收输入信号，耦合到输入的第一处理滤波器和耦合到第一处理滤波器的第一级估计模块，以估计第一级 基于第一处理过滤器的输入信号。 所述接收机还包括耦合到所述输入端的第二处理滤波器，耦合到所述第二处理滤波器的第二级估计模块，以基于所述第二处理滤波器估计所述输入信号的第二电平;以及控制模块，其耦合到（i） 第一级估计模块和（ii）第二级估计模块，其中控制模块包括被配置为基于（i）输入信号的第一级选择输入信号的模拟预滤波器的逻辑，以及（ii）第二级估计模块 级别的输入符号。
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公开(公告)号：US09401688B2
公开(公告)日：2016-07-26
申请号：US14422770
申请日：2012-12-10
Applicant: MATSUE ELMEC CORPORATION
Inventor： Masaaki Kameya
CPC classification number: H03H1/02 , H03H21/0001 , H04B3/04 , H04B3/14 , H04B7/005 , H04L25/03 , H04L25/03878
Abstract: A first meander line 1A is formed on one surface of a first dielectric layer 9A, with one end as a signal input position, and the other end connected to a first termination resistance 5A, and a second meander line 1C facing the first meander line 1A is formed on a surface facing the first dielectric layer 9A, and the second meander line 1C is formed, with one end positioned at the other end side of the first meander line 1A as a signal output position, and the other end connected to a second termination resistance 5C, and a first conductor line 3A is formed on the side facing the first dielectric layer 9A, with one end connected to the signal input position and the other connected to the signal output position, and a dividing section in a middle of the first conductor line 3A is connected by a first series resistance 7A.
Abstract translation: 第一曲折线1A形成在第一电介质层9A的一个表面上，其一端作为信号输入位置，另一端连接到第一终端电阻5A，第二曲折线1C面对第一曲折线1A 形成在面向第一电介质层9A的表面上，形成第二曲折线1C，其一端位于第一曲折线1A的另一端侧作为信号输出位置，另一端连接到第二 终端电阻5C，第一导线3A形成在面向第一电介质层9A的一侧，其一端连接到信号输入位置，另一端连接到信号输出位置，另一端连接到信号输出位置， 第一导线3A由第一串联电阻7A连接。
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公开(公告)号：US09319029B1
公开(公告)日：2016-04-19
申请号：US14745268
申请日：2015-06-19
Applicant: Clover Network, Inc.
Inventor： Arvind Antonio de Menezes Pereira , Alvin Dominguez , Gary Wagner
CPC classification number: H03H7/03 , H03H7/0115 , H03H7/0138 , H03H7/0153 , H03H7/0161 , H03H7/17 , H03H21/0001 , H03H2021/0098
Abstract: Various methods and devices that involve tuning filters are disclosed. A disclosed method for tuning a filter comprises trimming a center frequency of the filter. The method also comprises trimming an input signal magnitude of the filter. The method also comprises measuring a performance metric of the filter after trimming the center frequency of the filter and the input signal magnitude of the filter. The method also comprises repeating the trimming steps and the measuring step until the filter is tuned for a first physical test condition. A disclosed device that includes a filter also includes first and second trimming circuits that trim the center frequency and input signal magnitude of the filter. A disclosed system includes a motor to transfer a transmitting device from a first physical test condition to a second physical test condition relative to a proximity coupling device with a filter.
Abstract translation: 公开了涉及调谐滤波器的各种方法和装置。 用于调谐滤波器的公开方法包括调整滤波器的中心频率。 该方法还包括调整滤波器的输入信号幅度。 该方法还包括在调整滤波器的中心频率和滤波器的输入信号幅度之后测量滤波器的性能度量。 该方法还包括重复修整步骤和测量步骤，直到滤波器被调谐为第一物理测试条件。 包括滤波器的公开的装置还包括修整滤波器的中心频率和输入信号幅度的第一和第二微调电路。 所公开的系统包括相对于具有滤波器的邻近耦合装置将发射装置从第一物理测试条件传送到第二物理测试条件的电动机。
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Patent Agency Ranking
公开(公告)号：US09237042B2
公开(公告)日：2016-01-12
申请号：US14399810
申请日：2013-05-03
Applicant: ASTRIUM LIMITED
Inventor： David Young
CPC classification number: H04L25/03159 , H03H21/0001 , H04B7/18513 , H04L25/03878 , H04L2025/03375
Abstract: There is provided a filter network arrangement comprising a filter network; and one or more correction networks, wherein the one or more correction networks is arranged to substantially equalize the passband gain and group delay of the filter network arrangement. Given an appropriate Q for the one or more correction networks, a polynomial for the one or more correction networks can be found that equalizes both the passband gain and group delay and the one or more correction networks can be synthesized from the polynomial.
Abstract translation: 提供了一种包括滤波器网络的滤波器网络布置; 以及一个或多个校正网络，其中所述一个或多个校正网络被布置为基本上均衡滤波器网络布置的通带增益和组延迟。 给定一个或多个校正网络的适当的Q，可以找到一个或多个校正网络的多项式，其对通带增益和组延迟两者进行均衡，并且可以从多项式来合成一个或多个校正网络。
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公开(公告)号：US20150288341A1
公开(公告)日：2015-10-08
申请号：US14422770
申请日：2012-12-10
Applicant: MATSUE ELMEC CORPORATION
Inventor： Masaaki Kameya
CPC classification number: H03H1/02 , H03H21/0001 , H04B3/04 , H04B3/14 , H04B7/005 , H04L25/03 , H04L25/03878
Abstract: A first meander line 1A is formed on one surface of a first dielectric layer 9A, with one end as a signal input position, and the other end connected to a first termination resistance 5A, and a second meander line 1C facing the first meander line 1A is formed on a surface facing the first dielectric layer 9A, and the second meander line 1C is formed, with one end positioned at the other end side of the first meander line 1A as a signal output position, and the other end connected to a second termination resistance 5C, and a first conductor line 3A is formed on the side facing the first dielectric layer 9A, with one end connected to the signal input position and the other connected to the signal output position, and a dividing section in a middle of the first conductor line 3A is connected by a first series resistance 7A.
Abstract translation: 第一曲折线1A形成在第一电介质层9A的一个表面上，其一端作为信号输入位置，另一端连接到第一终端电阻5A，第二曲折线1C面对第一曲折线1A 形成在面向第一电介质层9A的表面上，形成第二曲折线1C，其一端位于第一曲折线1A的另一端侧作为信号输出位置，另一端连接到第二 终端电阻5C，第一导线3A形成在面向第一电介质层9A的一侧，其一端连接到信号输入位置，另一端连接到信号输出位置，另一端连接到信号输出位置， 第一导线3A由第一串联电阻7A连接。
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公开(公告)号：US20150256360A1
公开(公告)日：2015-09-10
申请号：US14589872
申请日：2015-01-05
Applicant: Hiroshi Takatori , Albert Vareljian , Oleksiy Zabroda
Inventor： Hiroshi Takatori , Albert Vareljian , Oleksiy Zabroda
CPC classification number: H04L25/03038 , H03H11/26 , H03H11/46 , H03H15/02 , H03H21/0001 , H04B3/32 , H04L1/0047 , H04L25/03057 , H04L25/03133 , H04L25/03343 , H04L2025/03477 , H04L2025/0349 , H04L2025/03503 , H04L2025/03598
Abstract: According to an embodiment of the disclosure, a communication transmitter and receiver include an adaptive filter and a decision feedback equalizer as well as cross-talk cancellers. The adaptive filter is configured to receive an input signal and includes a continuous analog delay circuit with a plurality of Padé-based delay elements.
Abstract translation: 根据本公开的实施例，通信发射机和接收机包括自适应滤波器和判决反馈均衡器以及串扰消除器。 自适应滤波器被配置为接收输入信号并且包括具有多个基于Padé的延迟元件的连续模拟延迟电路。
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9.发明授权公开(公告)号：US08737941B2
公开(公告)日：2014-05-27
申请号：US13629464
申请日：2012-09-27
Applicant: Skyworks Solutions, Inc.
Inventor： Dmitriy Rozenblit , Darioush Agahi
IPC: H04B1/04
CPC classification number: H04B1/0475 , H03H21/00 , H03H21/0001 , H04B2001/0416 , H04W52/52
Abstract: A system, such as a transceiver, for controlling an adjustable power level includes first and second power detectors, a network of attenuators, a compensator, a comparator, and a controller. The first power detector measures the power of a signal. The network of attenuators receives the signal and generates an attenuated signal. The compensator receives the attenuated signal and generates a compensated signal. The second power detector measures the power of the compensated signal. The comparator receives the respective outputs from the first and second power detectors and generates a first error signal. The controller enables the fixed attenuation, correspondingly adjusts the variable attenuation, receives a second error signal, and provides a control signal to the network of attenuators to nullify an attenuation mismatch introduced between the fixed attenuation and the variable attenuation. A corresponding method for controlling an adjustable power level is also disclosed.
Abstract translation: 用于控制可调功率电平的诸如收发器的系统包括第一和第二功率检测器，衰减器网络，补偿器，比较器和控制器。 第一个功率检测器测量信号的功率。 衰减器网络接收信号并产生衰减信号。 补偿器接收衰减信号并产生补偿信号。 第二功率检测器测量补偿信号的功率。 比较器从第一和第二功率检测器接收相应的输出并产生第一误差信号。 控制器实现固定衰减，相应地调整可变衰减，接收第二误差信号，并向衰减器网络提供控制信号，以消除固定衰减与可变衰减之间引入的衰减失配。 还公开了用于控制可调功率电平的相应方法。
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公开(公告)号：US08718563B2
公开(公告)日：2014-05-06
申请号：US13225700
申请日：2011-09-06
Applicant: Shervin Moloudi
Inventor： Shervin Moloudi
CPC classification number: H03H11/1291 , H03B21/01 , H03C3/0983 , H03H21/0001 , H03H21/0012 , H03H2011/0494 , H03J2200/10 , H03L7/0891 , H03L7/099 , H03L7/10 , H03L2207/06 , H04B1/40 , H04B17/104 , H04B17/14 , H04B17/19
Abstract: A method for processing a signal with a corresponding noise profile includes analyzing spectral content of the noise profile, filtering at least one noise harmonic within the signal based on the analyzed spectral content, and limiting the filtered signal. The noise profile may include a phase noise profile. The signal may include a sinusoidal signal and/or a noise signal. At least one filter coefficient that is used to filter the at least one noise harmonic may be determined. The filtering may include low pass filtering. The limiting may include hard-limiting of the filtered signal. A phase difference between the limited signal and a reference signal may be detected.
Abstract translation: 用于处理具有相应噪声分布图的信号的方法包括分析噪声分布的频谱内容，基于所分析的频谱内容对信号内的至少一个噪声谐波进行滤波，并限制滤波信号。 噪声分布可以包括相位噪声分布。 信号可以包括正弦信号和/或噪声信号。 可以确定用于滤波至少一个噪声谐波的至少一个滤波器系数。 滤波可以包括低通滤波。 限制可以包括对经滤波的信号的硬限制。 可以检测限制信号和参考信号之间的相位差。
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