公开(公告)号：US20140162585A1

公开(公告)日：2014-06-12

申请号：US14092835

申请日：2013-11-27

申请人： Tamal Bose ,  Haris Volos ,  Garrett Vanhoy ,  Carlos E. Caicedo Bastidas

发明人： Tamal Bose ,  Haris Volos ,  Garrett Vanhoy ,  Carlos E. Caicedo Bastidas

IPC分类号： H04W72/04 ,  H04W4/22

CPC分类号： H04W4/90 ,  H04W16/14

摘要： A system and related methods for allowing for an increase in the use of spectrum resources through market based mechanisms for spectrum management. Spectrum trading mechanisms are implemented that allow for assignment and allocation decisions to be made by market forces. The system helps moderate an environment where buyers and sellers dynamically determine the assignment of spectrum and its uses.

摘要翻译： 一种通过基于市场的频谱管理机制允许增加频谱资源使用的系统和相关方法。 实施频谱交易机制，允许市场力量进行转让和分配决策。 该系统有助于缓解买卖双方动态确定频谱及其用途的分配环境。

公开(公告)号：US08290086B2

公开(公告)日：2012-10-16

申请号：US12634251

申请日：2009-12-09

申请人： Tamal Bose ,  Xuetao Chen ,  Jeffery H. Reed

发明人： Tamal Bose ,  Xuetao Chen ,  Jeffery H. Reed

IPC分类号： H04L27/04 ,  H04L27/20

CPC分类号： H04L27/36 ,  H03F1/0294

摘要： Techniques for producing an output signal using an outphasing transmitter are disclosed. In some examples, constant modulation (CM) signals may be produced from a digital input signal. The CM signals may be converted to an analog state and filtered. The signals may then be modulated to produce modulated signals, which may be amplified. The amplified signals may be combined to produce combined signals, which may further be combined to produce an output signal.

摘要翻译： 公开了使用外相变送器产生输出信号的技术。 在一些示例中，可以从数字输入信号产生恒定调制（CM）信号。 CM信号可以转换为模拟状态并进行滤波。 然后可以对这些信号进行调制以产生可被放大的调制信号。 放大的信号可以被组合以产生组合信号，其可进一步被组合以产生输出信号。

公开(公告)号：US08295341B2

公开(公告)日：2012-10-23

申请号：US12609011

申请日：2009-10-30

申请人： Tamal Bose ,  Barathram Ramkumar

发明人： Tamal Bose ,  Barathram Ramkumar

IPC分类号： H04L27/01

CPC分类号： H04L25/0307 ,  H04L25/03165 ,  H04L25/03292 ,  H04L27/0008 ,  H04L27/0012 ,  H04L2025/03585

摘要： An example Cognitive Radio (CR) described herein may include equalization and Automatic Modulation Classification (AMC). The equalization may employ digital filter techniques with an adjustable length or order. The output of the equalization may be provided to the AMC, where the AMC may be adapted to identify various characteristics about the RF environment and also to identify probabilities of classification associated with the performance of the AMC itself. The CR device may be configured to adjust the equalization using feedback from the AMC to enhance performance of each other.

摘要翻译： 本文描述的示例性认知无线电（CR）可以包括均衡和自动调制分类（AMC）。 均衡可以采用具有可调节长度或顺序的数字滤波器技术。 可以向AMC提供均衡的输出，其中AMC可以适于识别关于RF环境的各种特性，并且还识别与AMC本身的性能相关联的分类的概率。 CR设备可以被配置为使用来自AMC的反馈来调整均衡以增强彼此的性能。

公开(公告)号：US5734112A

公开(公告)日：1998-03-31

申请号：US689839

申请日：1996-08-14

申请人： Tamal Bose ,  Howard Vincent Derby ,  Andrew Keith Levien ,  Anthony William Pankratz

发明人： Tamal Bose ,  Howard Vincent Derby ,  Andrew Keith Levien ,  Anthony William Pankratz

IPC分类号： G01F1/84 ,  G01F1/86

CPC分类号： G01F15/024 ,  G01F1/8413 ,  G01F1/8431 ,  G01F1/8436 ,  G01F1/8477

摘要： A method for determining pressure in an operating Coriolis effect mass flowmeter. The Coriolis flowmeter flow tubes are vibrated in both a bending mode (as is normal for measuring mass flow rate) and in a twisting mode. The ratio of the fundamental frequencies at which the flow tubes vibrate in each of the two vibration modes is proportional to the pressure within the flow tubes. In the preferred embodiment, a sum/difference method initially isolates the superposed sinusoids representing the fundamental frequencies of the two vibrational modes. Fast conjugate gradient (FCG) digital filters are then used to rapidly estimate the fundamental frequencies in each of the two vibration modes. The estimated frequencies are then used by filter chains including digital notch and band pass filters as well as recursive maximum likelihood (RML) digital filter techniques to enhance the bending mode and twisting mode fundamental frequency estimates. The enhanced bending mode and twisting mode frequency estimates are used to determine the pressure within the flow tubes as a function of the ratio of the two frequencies as well as to center the notch and band pass filter chains used to enhance the bending mode frequency of the two vibration sensor channels for mass flow rate computations. The pressure so determined may then be used to correct mass flow rate computations or for other pressure measurement purposes per se.

摘要翻译： 用于确定操作科里奥利效应质量流量计中的压力的​​方法。 科里奥利流量计流量管在弯曲模式下（如测量质量流量的正常值）和扭转模式下振动。 流管在两个振动模式中的每一个振动的基频的比率与流管内的压力成比例。 在优选实施例中，和/差方法最初隔离表示两个振动模式的基频的叠加正弦曲线。 然后使用快速共轭梯度（FCG）数字滤波器来快速估计两种振动模式中的每一种的基频。 估计的频率然后由包括数字陷波和带通滤波器的滤波器链以及递归最大似然（RML）数字滤波技术用于增强弯曲模式和扭转模式基频估计。 增强的弯曲模式和扭转模式频率估计被用来确定流管内的压力作为两个频率之比的函数，以及用于增加用于增强弯曲模式频率的凹口和带通滤波器链的中心 两个用于质量流量计算的振动传感器通道。 因此，如此确定的压力可用于校正质量流量计算或其他压力测量目的本身。

公开(公告)号：US07289558B2

公开(公告)日：2007-10-30

申请号：US10615004

申请日：2003-07-08

申请人： Tamal Bose ,  Alan W. Shaw ,  Chirag RamGopal Sharma ,  Ratchaneekorn Thamvichai

发明人： Tamal Bose ,  Alan W. Shaw ,  Chirag RamGopal Sharma ,  Ratchaneekorn Thamvichai

IPC分类号： H03H7/40

CPC分类号： H03H17/0225 ,  H03H17/04

摘要： A multiplierless IIR filter incorporates power-of-two coefficients to perform shift operations to reduce space and increase speed. To optimize performance, a genetic algorithm generates the power-of-two coefficients. The filter architecture includes shift registers to receive input samples and previous outputs. A shifter stage is employed to perform shift operations for the input samples and previous outputs based on corresponding power-of-two coefficients. Products are added by parallelism and sequential pipelining to produce an output.

摘要翻译： 无乘法器IIR滤波器包含两个系数，用于执行移位操作以减少空间并提高速度。 为了优化性能，遗传算法生成二次幂系数。 滤波器架构包括移位寄存器以接收输入采样和以前的输出。 使用移位级基于相应的二次幂系数对输入样本和先前输出执行移位操作。 产品通过并行和顺序流水线添加以产生输出。

公开(公告)号：US20110135035A1

公开(公告)日：2011-06-09

申请号：US12634251

申请日：2009-12-09

申请人： Tamal Bose ,  Xuetao Chen ,  Jeffery H. Reed

发明人： Tamal Bose ,  Xuetao Chen ,  Jeffery H. Reed

IPC分类号： H04L27/04

CPC分类号： H04L27/36 ,  H03F1/0294

摘要： Techniques for producing an output signal using an outphasing transmitter are disclosed. In some examples, constant modulation (CM) signals may be produced from a digital input signal. The CM signals may be converted to an analog state and filtered. The signals may then be modulated to produce modulated signals, which may be amplified. The amplified signals may be combined to produce combined signals, which may further be combined to produce an output signal.

摘要翻译： 公开了使用外相变送器产生输出信号的技术。 在一些示例中，可以从数字输入信号产生恒定调制（CM）信号。 CM信号可以转换为模拟状态并进行滤波。 然后可以对这些信号进行调制以产生可被放大的调制信号。 放大的信号可以被组合以产生组合信号，其可进一步被组合以产生输出信号。

公开(公告)号：US20050008071A1

公开(公告)日：2005-01-13

申请号：US10615004

申请日：2003-07-08

申请人： Tamal Bose ,  Alan Shaw ,  Chirag Sharma ,  Ratchaneekorn Thamvichai

发明人： Tamal Bose ,  Alan Shaw ,  Chirag Sharma ,  Ratchaneekorn Thamvichai

IPC分类号： H03H17/02 ,  H03H17/04 ,  H03K5/159

CPC分类号： H03H17/0225 ,  H03H17/04

摘要： A multiplierless IIR filter incorporates power-of-two coefficients to perform shift operations to reduce space and increase speed. To optimize performance, a genetic algorithm generates the power-of-two coefficients. The filter architecture includes shift registers to receive input samples and previous outputs. A shifter stage is employed to perform shift operations for the input samples and previous outputs based on corresponding power-of-two coefficients. Products are added by parallelism and sequential pipelining to produce an output.

摘要翻译： 无乘法器IIR滤波器包含两个系数，用于执行移位操作以减少空间并提高速度。 为了优化性能，遗传算法生成二次幂系数。 滤波器架构包括移位寄存器以接收输入采样和以前的输出。 使用移位级基于相应的二次幂系数对输入样本和先前输出执行移位操作。 产品通过并行和顺序流水线添加以产生输出。

公开(公告)号：US5555190A

公开(公告)日：1996-09-10

申请号：US501411

申请日：1995-07-12

申请人： Howard V. Derby ,  Tamal Bose ,  Seeraman Rajan

发明人： Howard V. Derby ,  Tamal Bose ,  Seeraman Rajan

IPC分类号： G01F1/84

CPC分类号： G01F15/024 ,  G01F1/8431 ,  G01F1/8436 ,  G01F1/8477

摘要： An apparatus and method for determining frequency and phase relationships of vibrating flow tubes in a Coriolis mass flow meter. Adaptive line enhancement (ALE) techniques and apparatus are used in a digital signal processing (DSP) device to accurately determine frequency and phase relationships of the vibrating flow tube and to thereby more accurately determine mass flow rate of a material flowing through the mass flow meter. In a first embodiment, an adaptive notch filter is used to enhance the signal from each corresponding sensor signal on the vibrating flow tubes. In a second embodiment, a plurality of adaptive notch filters are cascaded to enhance the signal from each corresponding sensor signal. In both embodiments an anti-aliasing decimation filter associated with each sensor signal reduces the computational complexity by reducing the number of samples from a fixed frequency A/D sampling device associated with each sensor signal. Computational adjustments are performed to compensate for spectral leakage between the fixed sampling frequency and the variable fundamental frequency of the vibrating flow tubes. Despite this added computational complexity, the present invention is simpler than prior designs and provides better noise immunity due to the adaptive notch filtration. Heuristics are applied to the weight adaptation algorithms of the notch filters to improve convergence of the digital filters and to reduce the possibility of instability of the filters interfering with mass flow measurements.

摘要翻译： 用于确定科里奥利质量流量计中振动流管的频率和相位关系的装置和方法。 在数字信号处理（DSP）装置中使用自适应线增强（ALE）技术和装置来精确地确定振动流管的频率和相位关系，从而更准确地确定流过质量流量计的材料的质量流率 。 在第一实施例中，自适应陷波滤波器用于增强来自振动流管上每个对应的传感器信号的信号。 在第二实施例中，级联多个自适应陷波滤波器以增强来自每个相应传感器信号的信号。 在两个实施例中，与每个传感器信号相关联的抗混叠抽取滤波器通过减少与每个传感器信号相关联的固定频率A / D采样设备的采样数量来降低计算复杂度。 执行计算调整以补偿固定采样频率和振动流管的可变基频之间的频谱泄漏。 尽管增加了计算复杂度，本发明比先前的设计更简单，并且由于自适应陷波滤波而提供了更好的抗噪声能力。 启发式应用于陷波滤波器的权重自适应算法，以改善数字滤波器的收敛性，并降低滤波器不稳定性干扰质量流量测量的可能性。