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公开(公告)号：US20100156390A1
公开(公告)日：2010-06-24
申请号：US12721014
申请日：2010-03-10
申请人： Matthew D. Felder , Michael R. May
发明人： Matthew D. Felder , Michael R. May
IPC分类号： H03H7/00
CPC分类号： H04L27/14 , H03F3/189 , H03F3/343 , H03G3/3068
摘要： A method for signal strength detection begins by comparing a signal strength representation of a signal with a signal strength representation of a reference signal. The method continues by adjusting, when the signal strength representation of the signal compares unfavorably with the signal strength representation of the reference signal, at least one of the signal strength representation of the signal and the signal strength representation of the reference signal until the signal strength representation of the signal compares favorably with the signal strength representation of the reference signal. The method continues by determining signal strength of the signal based on the adjusting of the signal strength representation of the signal and signal strength of the reference signal.
摘要翻译： 用于信号强度检测的方法开始于将信号的信号强度表示与参考信号的信号强度表示进行比较。 该方法通过调节信号的信号强度表示与参考信号的信号强度表示不利地相比较，信号的信号强度表示和参考信号的信号强度表示中的至少一个直到信号强度 信号的表示与参考信号的信号强度表示相当。 该方法通过基于信号的信号强度表示和参考信号的信号强度的调整来确定信号的信号强度来继续。
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公开(公告)号：US07729682B2
公开(公告)日：2010-06-01
申请号：US11237339
申请日：2005-09-28
IPC分类号： H04B1/26
CPC分类号： H04B1/28
摘要： A receiver includes a mixing module for mixing an input signal by at least one mixing sequence to produce a mixed signal. The mixed signal is filtered to produce a first filtered signal. A first downsampler downsamples the first filtered signal to produce a first decimated signal, wherein the decimation period is not a multiple of the mixing period.
摘要翻译： 接收机包括混合模块，用于通过至少一个混合序列混合输入信号以产生混合信号。 对混合信号进行滤波以产生第一滤波信号。 第一下采样器对第一滤波信号进行下采样以产生第一抽取信号，其中抽取周期不是混合周期的倍数。
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公开(公告)号：US07706473B2
公开(公告)日：2010-04-27
申请号：US11388675
申请日：2006-03-24
申请人： Matthew D. Felder , Michael R. May
发明人： Matthew D. Felder , Michael R. May
IPC分类号： H04L25/06
CPC分类号： H04L27/14 , H03F3/189 , H03F3/343 , H03G3/3068
摘要： A method for signal strength detection begins by comparing a signal strength representation of a signal with a signal strength representation of a reference signal. The method continues by adjusting, when the signal strength representation of the signal compares unfavorably with the signal strength representation of the reference signal, at least one of the signal strength representation of the signal and the signal strength representation of the reference signal until the signal strength representation of the signal compares favorably with the signal strength representation of the reference signal. The method continues by determining signal strength of the signal based on the adjusting of the signal strength representation of the signal and signal strength of the reference signal.
摘要翻译： 用于信号强度检测的方法开始于将信号的信号强度表示与参考信号的信号强度表示进行比较。 该方法通过调节信号的信号强度表示与参考信号的信号强度表示不利地相比较，信号的信号强度表示和参考信号的信号强度表示中的至少一个直到信号强度 信号的表示与参考信号的信号强度表示相当。 该方法通过基于信号的信号强度表示和参考信号的信号强度的调整来确定信号的信号强度来继续。
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公开(公告)号：US07106241B1
公开(公告)日：2006-09-12
申请号：US11237340
申请日：2005-09-28
申请人： Matthew D. Felder , Michael R. May
发明人： Matthew D. Felder , Michael R. May
IPC分类号： H03M1/12
摘要： A controlled sampling module samples an input signal from an input device and a reference signal. The controlled sampling module includes a plurality of sample capacitors, a switching network, and a switch control module for controlling the switching network. The switching network couples a first capacitor of the plurality of capacitors to the reference signal during a first phase, and to the input signal during a second phase, such that a charge on the first capacitor remaining at an end of the first phase is cancelled during the second phase.
摘要翻译： 受控采样模块从输入设备和参考信号采样输入信号。 受控采样模块包括多个采样电容器，开关网络和用于控制开关网络的开关控制模块。 开关网络在第一阶段期间将多个电容器中的第一电容器耦合到参考信号，并且在第二阶段期间耦合到输入信号，使得在第一阶段结束时剩余的第一电容器上的电荷被消除 第二阶段
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5.发明授权公开(公告)号：US07245247B1
公开(公告)日：2007-07-17
申请号：US11355934
申请日：2006-02-16
申请人： Michael R. May , Matthew D. Felder
发明人： Michael R. May , Matthew D. Felder
IPC分类号： H03M3/00
CPC分类号： H03M3/496 , G11C27/024 , H03M3/454
摘要： An analog-to-digital converter (ADC) includes a modulator and a decimation filter. The modulator includes a sampling circuit, integrator, a quantizer, and feedback circuitry. The sampling circuit includes at least one sampling capacitor and a plurality of dump capacitors. A sum of the capacitance of the dump capacitors is substantially equal to a capacitance of the sampling capacitors. Combined sampling/dump capacitors having approximately equal capacitance may be used with the sampling circuit.
摘要翻译： 模数转换器（ADC）包括调制器和抽取滤波器。 调制器包括采样电路，积分器，量化器和反馈电路。 采样电路包括至少一个采样电容器和多个转储电容器。 转储电容器的电容之和基本上等于采样电容器的电容。 采样电路可以使用具有大致相等电容的组合采样/去电容器。
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公开(公告)号：US07602862B2
公开(公告)日：2009-10-13
申请号：US11237344
申请日：2005-09-28
申请人： Michael R. May , Matthew D. Felder
发明人： Michael R. May , Matthew D. Felder
CPC分类号： H03D3/007
摘要： A mixing module includes a plurality of switched sample modules operably for generating a corresponding plurality of samples of an analog input signal in response to a control signal. A control module generates a mixing sequence and a control signal based on the mixing sequence, the control signal including a sequence of sample positions at a sampling clock rate and a sequence of scale factors, the sequence of scale factors based on an oscillation, wherein the sampling clock has a sample period and wherein the sequence of sample positions repeats at a sample position period greater than a sample interval, the sample interval equal to the sample period times the number of the plurality of switched sample circuits.
摘要翻译： 混合模块包括可操作地用于响应于控制信号产生模拟输入信号的相应多个样本的多个切换采样模块。 控制模块基于混合序列产生混合序列和控制信号，该控制信号包括采样时钟速率的采样位置序列和比例因子序列，基于振荡的比例因子序列，其中， 采样时钟具有采样周期，其中采样位置序列在大于采样间隔的采样位置周期重复，采样间隔等于采样周期乘以多个开关采样电路的数量。
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公开(公告)号：US07676206B2
公开(公告)日：2010-03-09
申请号：US11294663
申请日：2005-12-05
CPC分类号： H04B1/18
摘要： A radio receiver front-end includes a tunable antenna interface and a low noise amplifying section. The tunable antenna interface is operably coupled to receive a wide bandwidth signal from an antenna, wherein the wide bandwidth signal includes a plurality of channel signals, and wherein the tunable antenna interface is tuned to pass a selected one of the plurality of channel signals substantially unattenuated and to attenuate remaining ones of the plurality of channel signals to produce a filtered wide bandwidth signal. The low noise amplifying section is operably coupled to amplify the filtered wide bandwidth signal to produce a filtered and amplified wide bandwidth signal.
摘要翻译： 无线电接收机前端包括可调谐天线接口和低噪声放大部分。 可调谐天线接口可操作地耦合以从天线接收宽带宽信号，其中宽带宽信号包括多个信道信号，并且其中可调谐天线接口被调谐以将多个信道信号中选定的一个信道基本上未衰减 并衰减多个信道信号中剩余的信道信号，以产生滤波的宽带宽信号。 低噪声放大部分可操作地耦合以放大经滤波的宽带宽信号以产生滤波和放大的宽带宽信号。
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公开(公告)号：US07583216B2
公开(公告)日：2009-09-01
申请号：US11863631
申请日：2007-09-28
申请人： Matthew D. Felder , Marcus W. May , Michael R. May
发明人： Matthew D. Felder , Marcus W. May , Michael R. May
IPC分类号： H03M1/66
摘要： A digital to analog converter (DAC) includes at least one digital to analog conversion module and a gated termination. The at least one digital to analog conversion module is coupled to convert at least one bit of a digital signal into an analog signal. The gated termination is coupled to an analog output of the at least one digital to analog conversion module to provide a first termination when a termination selection signal is in a first state and to provide a second termination when the termination selection signal is in a second state.
摘要翻译： 数模转换器（DAC）包括至少一个数模转换模块和门控终端。 所述至少一个数模转换模块被耦合以将数字信号的至少一位转换为模拟信号。 门控终端耦合到至少一个数模转换模块的模拟输出，以在端接选择信号处于第一状态时提供第一终端，并且当终端选择信号处于第二状态时提供第二终端 。
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公开(公告)号：US20090085782A1
公开(公告)日：2009-04-02
申请号：US11863631
申请日：2007-09-28
申请人： Matthew D. Felder , Marcus W. May , Michael R. May
发明人： Matthew D. Felder , Marcus W. May , Michael R. May
摘要： A digital to analog converter (DAC) includes at least one digital to analog conversion module and a gated termination. The at least one digital to analog conversion module is coupled to convert at least one bit of a digital signal into an analog signal. The gated termination is coupled to an analog output of the at least one digital to analog conversion module to provide a first termination when a termination selection signal is in a first state and to provide a second termination when the termination selection signal is in a second state.
摘要翻译： 数模转换器（DAC）包括至少一个数模转换模块和门控终端。 所述至少一个数模转换模块被耦合以将数字信号的至少一位转换为模拟信号。 门控终端耦合到至少一个数模转换模块的模拟输出，以在端接选择信号处于第一状态时提供第一终端，并且当终端选择信号处于第二状态时提供第二终端 。
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公开(公告)号：US07301492B2
公开(公告)日：2007-11-27
申请号：US11498204
申请日：2006-08-01
申请人： Matthew D. Felder , Michael R. May
发明人： Matthew D. Felder , Michael R. May
IPC分类号： H03M1/12
摘要： A controlled sampling module samples an input signal from an input device and a reference signal. The controlled sampling module includes a plurality of sample capacitors, a switching network, and a switch control module for controlling the switching network. The switching network couples a first capacitor of the plurality of capacitors to the reference signal during a first phase, and to the input signal during a second phase, such that a charge on the first capacitor remaining at an end of the first phase is cancelled during the second phase.
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