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1. 发明授权

US09680497B2 Conversion of a discrete-time quantized signal into a continuous-time, continuously variable signal 有权
公开(公告)号：US09680497B2
公开(公告)日：2017-06-13
申请号：US15361385
申请日：2016-11-26
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H03M1/06 , H03M3/00
CPC分类号： H03M3/36 , H03F1/08 , H03F1/30 , H03F1/3247 , H03F1/3258 , H03F3/2175 , H03F3/45475 , H03F2200/447 , H03F2203/45528 , H03M1/1038 , H03M1/785 , H03M3/358 , H03M3/40 , H03M3/402 , H03M3/50 , H03M3/502 , H03M7/3026 , H03M7/3033 , H04L27/362
摘要： Provided are, among other things, systems, apparatuses, methods and techniques for converting a discrete-time quantized signal into a continuous-time, continuously variable signal. An exemplary converter preferably includes: (1) multiple oversampling converters, each processing a different frequency band, operated in parallel; (2) multirate (i.e., polyphase) delta-sigma modulators (preferably second-order or higher); (3) multi-bit quantizers; (4) multi-bit-to-variable-level signal converters, such as resistor ladder networks or current source networks; (5) adaptive nonlinear, bit-mapping to compensate for mismatches in the multi-bit-to-variable-level signal converters (e.g., by mimicking such mismatches and then shifting the resulting noise to a frequently range where it will be filtered out by a corresponding bandpass (reconstruction) filter); (6) multi-band (e.g., programmable noise-transfer-function response) bandpass delta-sigma modulators; and/or (7) a digital pre-distortion linearizer (DPL) for canceling noise and distortion introduced by an analog signal bandpass (reconstruction) filter bank.

2. 发明授权

US09634700B2 Distributed noise shaping apparatus 有权
公开(公告)号：US09634700B2
公开(公告)日：2017-04-25
申请号：US15202677
申请日：2016-07-06
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H04B1/04 , H04L27/00 , H04L27/28 , H03M3/00
CPC分类号： H04B1/0475 , H03M3/344 , H03M3/414 , H03M3/45 , H03M3/454 , H04B1/0483 , H04L27/0002 , H04L27/28
摘要： Provided are, among other things, systems, apparatuses methods and techniques for attenuating the level of unwanted noise and/or distortion in a particular frequency band, without similarly attenuating the level of a desired signal in the same frequency band. One such apparatus includes a distributed network comprising a plurality of reactive impedance segments and gain cells that form transmission paths, over which continuous and quantized versions of an input signal propagate before combining with the input signal itself.

3. 发明申请

US20160373125A1 Sampling/Quantization Converters 有权
标题翻译：采样/量化转换器
公开(公告)号：US20160373125A1
公开(公告)日：2016-12-22
申请号：US15251689
申请日：2016-08-30
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H03M1/06 , H03M3/00 , H03M1/34
CPC分类号： H03M3/468 , H03M3/404 , H03M3/422 , H03M3/436
摘要： Provided are, among other things, systems, apparatuses, methods and techniques for converting a continuous-time, continuously variable signal into a sampled and quantized signal. One such apparatus includes an input line for accepting an input signal that is continuous in time and continuously variable, multiple processing branches coupled to the input line, and an adder coupled to outputs of the processing branches, with each of the processing branches including a bandpass noise-shaping circuit, a sampling/quantization circuit coupled to an output of the bandpass noise-shaping circuit, a digital bandpass filter coupled to an output of the sampling/quantization circuit, and a line coupling an output of the sampling/quantization converter circuit back into the bandpass noise-shaping circuit. A center frequency of the digital bandpass filter in each processing branch corresponds to a stopband region in a quantization noise transfer function for the bandpass noise-shaping circuit in the same processing branch.
摘要翻译：尤其提供了用于将连续时间连续可变信号转换成采样和量化信号的系统，装置，方法和技术。一种这样的装置包括用于接受时间上连续且连续可变的输入信号的输入线，连接到输入线的多个处理分支，以及耦合到处理分支的输出的加法器，每个处理分支包括带通噪声整形电路，耦合到带通噪声整形电路的输出的采样/量化电路，耦合到采样/量化电路的输出的数字带通滤波器以及耦合采样/量化转换器电路的输出的线回到带通噪声整形电路。每个处理分支中的数字带通滤波器的中心频率对应于同一处理分支中的带通噪声整形电路的量化噪声传递函数中的阻带区域。

4. 发明申请

US20160072520A1 Sampling/Quantization Converters 有权
公开(公告)号：US20160072520A1
公开(公告)日：2016-03-10
申请号：US14944182
申请日：2015-11-17
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H03M3/00 , G06F17/10
CPC分类号： H03M3/404 , G06F17/10 , H03M3/358 , H03M3/386 , H03M3/422 , H03M3/436 , H03M3/468 , H03M3/498
摘要： Provided are, among other things, systems, apparatuses, methods and techniques for converting a continuous-time, continuously variable signal into a sampled and quantized signal. One such apparatus includes an input line for accepting an input signal that is continuous in time and continuously variable, multiple processing branches coupled to the input line, and an adder coupled to outputs of the processing branches. Each of the processing branches includes a continuous-time quantization-noise-shaping circuit, a sampling/quantization circuit coupled to an output of the continuous-time quantization-noise-shaping circuit, a digital bandpass filter coupled to an output of the sampling/quantization circuit, and a line coupling an output of the digital-to-analog converter circuit back into the continuous-time quantization-noise-shaping circuit. A center frequency of the digital bandpass filter in each the processing branch corresponds to a minimum in a quantization noise transfer function for the continuous-time quantization-noise-shaping circuit in the same processing branch.

5. 发明授权

US09048865B2 Conversion of a discrete time quantized signal into a continuous time, continuously variable signal 有权
标题翻译：将离散时间量化信号转换为连续时间，连续可变信号
公开(公告)号：US09048865B2
公开(公告)日：2015-06-02
申请号：US14537122
申请日：2014-11-10
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H03M1/66 , H03F1/32 , H03M3/00 , H03M1/74 , H04L27/04
CPC分类号： H03M1/661 , H03F1/3247 , H03M1/747 , H03M3/30 , H03M3/358 , H03M3/50 , H03M3/502 , H03M7/3026 , H03M7/3033 , H04L27/04
摘要： Provided are, among other things, systems, apparatuses, methods and techniques for converting a discrete-time quantized signal into a continuous-time, continuously variable signal. An exemplary converter preferably includes: (1) multiple oversampling converters, each processing a different frequency band, operated in parallel; (2) multirate (i.e., polyphase) delta-sigma modulators (preferably second-order or higher); (3) multi-bit quantizers; (4) multi-bit-to-variable-level signal converters, such as resistor ladder networks or current source networks; (5) adaptive nonlinear, bit-mapping to compensate for mismatches in the multi-bit-to-variable-level signal converters (e.g., by mimicking such mismatches and then shifting the resulting noise to a frequently range where it will be filtered out by a corresponding bandpass (reconstruction) filter); (6) multi-band (e.g., programmable noise-transfer-function response) bandpass delta-sigma modulators; and/or (7) a digital pre-distortion linearizer (DPL) for canceling noise and distortion introduced by an analog signal bandpass (reconstruction) filter bank.
摘要翻译：尤其提供了用于将离散时间量化信号转换成连续时间连续可变信号的系统，装置，方法和技术。示例性转换器优选地包括：（1）多个过采样转换器，每个处理不同的频带，并行操作; （2）多速率（即多相）Δ-Σ调制器（优选二阶或更高）; （3）多位量化器; （4）多位到可变电平信号转换器，如电阻梯形网络或电流源网络; （5）自适应非线性比特映射以补偿多比特到可变电平信号转换器中的不匹配（例如，通过模拟这样的失配，然后将所得到的噪声移动到频率范围，其中将被滤波掉相应的带通（重建）滤波器）; （6）多频带（例如可编程噪声传递函数响应）带通Δ-Σ调制器; 和/或（7）用于消除由模拟信号带通（重构）滤波器组引入的噪声和失真的数字预失真线性化器（DPL）。

6. 发明授权

US09000967B2 Apparatuses and methods for linear to discrete quantization conversion with reduced sampling variation errors 有权
标题翻译：用于线性到离散量化转换的装置和方法，具有减少的采样变化误差
公开(公告)号：US09000967B2
公开(公告)日：2015-04-07
申请号：US14056917
申请日：2013-10-17
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H03M1/12 , H03M3/00
CPC分类号： H03M3/30 , H03M1/0836 , H03M1/121 , H03M3/468
摘要： Provided is an apparatus for converting a continuous-time, continuously variable signal into a sampled and quantized signal, which includes an input line for accepting an input signal, multiple processing branches coupled to the input line, and an adder coupled to outputs of the plurality of processing branches. Each of the processing branches includes a sampling/quantization circuit and a digital bandpass interpolation filter having an input coupled to an output of the sampling/quantization circuit. The digital bandpass interpolation filters in different ones of the processing branches have frequency responses that are centered at different frequencies. The digital bandpass interpolation filter in at least one of the processing branches includes: (i) a quadrature downconverter, (ii) a first lowpass filter and a second lowpass filter, (iii) a first interpolator and a second interpolator, each having an input for inputting a variable interpolant value, and (iv) a quadrature upconverter.
摘要翻译：提供了一种用于将连续时间连续可变信号转换为采样和量化信号的装置，其包括用于接受输入信号的输入线，耦合到输入线的多个处理分支和耦合到多个输出的输出的加法器的处理分支机构。每个处理分支包括具有耦合到采样/量化电路的输出的输入的采样/量化电路和数字带通内插滤波器。不同处理分支中的数字带通插值滤波器具有以不同频率为中心的频率响应。至少一个处理分支中的数字带通插值滤波器包括：（i）正交下变频器，（ii）第一低通滤波器和第二低通滤波器，（iii）第一内插器和第二内插器，每个具有输入用于输入可变内插值，和（iv）正交上变频器。

7. 发明申请

US20140043177A1 Apparatuses and Methods for Linear to Discrete Quantization Conversion with Reduced Sampling Variation Errors 有权
标题翻译：用于线性离散量化转换的设备和方法，具有减少的采样变化误差
公开(公告)号：US20140043177A1
公开(公告)日：2014-02-13
申请号：US14056917
申请日：2013-10-17
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H03M3/00
CPC分类号： H03M3/30 , H03M1/0836 , H03M1/121 , H03M3/468
摘要： Provided is an apparatus for converting a continuous-time, continuously variable signal into a sampled and quantized signal, which includes an input line for accepting an input signal, multiple processing branches coupled to the input line, and an adder coupled to outputs of the plurality of processing branches. Each of the processing branches includes a sampling/quantization circuit and a digital bandpass interpolation filter having an input coupled to an output of the sampling/quantization circuit. The digital bandpass interpolation filters in different ones of the processing branches have frequency responses that are centered at different frequencies. The digital bandpass interpolation filter in at least one of the processing branches includes: (i) a quadrature downconverter, (ii) a first lowpass filter and a second lowpass filter, (iii) a first interpolator and a second interpolator, each having an input for inputting a variable interpolant value, and (iv) a quadrature upconverter.
摘要翻译：提供了一种用于将连续时间连续可变信号转换为采样和量化信号的装置，其包括用于接受输入信号的输入线，耦合到输入线的多个处理分支和耦合到多个输出的输出的加法器的处理分支机构。每个处理分支包括具有耦合到采样/量化电路的输出的输入的采样/量化电路和数字带通内插滤波器。不同处理分支中的数字带通插值滤波器具有以不同频率为中心的频率响应。至少一个处理分支中的数字带通插值滤波器包括：（i）正交下变频器，（ii）第一低通滤波器和第二低通滤波器，（iii）第一内插器和第二内插器，每个具有输入用于输入可变内插值，和（iv）正交上变频器。

8. 发明申请

US20190238152A1 Apparatuses and Methods for Sample Rate Conversion 审中-公开
公开(公告)号：US20190238152A1
公开(公告)日：2019-08-01
申请号：US16382535
申请日：2019-04-12
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H03M3/00 , H03M9/00 , H03M1/10 , H04L27/36 , H03M1/66
CPC分类号： H03M3/358 , H03M1/1038 , H03M1/661 , H03M1/785 , H03M3/436 , H03M3/502 , H03M3/51 , H03M7/3026 , H03M7/3033 , H03M9/00 , H04L27/362
摘要： Provided, among other things, is an apparatus that converts a signal from one sampling domain to another, and which includes: an input line for accepting an input signal and a processing branch. The processing branch includes a branch input coupled to the input line for inputting data samples that are discrete in time and in value, a quadrature downconverter, a first and second lowpass filter, a first and second polynomial interpolator, and a rotation matrix multiplier that provides a phase rotation. The processing branch generates data samples at a sampling interval that differs from the sampling interval associated with the signal provided to the branch input, e.g., with the difference in the sampling intervals depending on fluctuations in the output period of a local oscillator. Certain embodiments include multiple such processing branches, e.g., operating on different frequency bands of the input signal.

9. 发明授权

US09621175B2 Sampling/quantization converters 有权
公开(公告)号：US09621175B2
公开(公告)日：2017-04-11
申请号：US15251689
申请日：2016-08-30
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H03M3/00 , H03M1/06 , H03M1/34
CPC分类号： H03M3/468 , H03M3/404 , H03M3/422 , H03M3/436
摘要： Provided are, among other things, systems, apparatuses, methods and techniques for converting a continuous-time, continuously variable signal into a sampled and quantized signal. One such apparatus includes an input line for accepting an input signal that is continuous in time and continuously variable, multiple processing branches coupled to the input line, and an adder coupled to outputs of the processing branches, with each of the processing branches including a bandpass noise-shaping circuit, a sampling/quantization circuit coupled to an output of the bandpass noise-shaping circuit, a digital bandpass filter coupled to an output of the sampling/quantization circuit, and a line coupling an output of the sampling/quantization converter circuit back into the bandpass noise-shaping circuit. A center frequency of the digital bandpass filter in each processing branch corresponds to a stopband region in a quantization noise transfer function for the bandpass noise-shaping circuit in the same processing branch.

10. 发明申请

US20170077945A1 Conversion of a Discrete-Time Quantized Signal into a Continuous-Time, Continuously Variable Signal 有权
标题翻译：将离散时间量化信号转换为连续时间的连续可变信号
公开(公告)号：US20170077945A1
公开(公告)日：2017-03-16
申请号：US15361385
申请日：2016-11-26
申请人： Syntropy Systems, LLC
发明人： Christopher Pagnanelli
IPC分类号： H03M3/00
CPC分类号： H03M3/36 , H03F1/08 , H03F1/30 , H03F1/3247 , H03F1/3258 , H03F3/2175 , H03F3/45475 , H03F2200/447 , H03F2203/45528 , H03M1/1038 , H03M1/785 , H03M3/358 , H03M3/40 , H03M3/402 , H03M3/50 , H03M3/502 , H03M7/3026 , H03M7/3033 , H04L27/362
摘要： Provided are, among other things, systems, apparatuses, methods and techniques for converting a discrete-time quantized signal into a continuous-time, continuously variable signal. An exemplary converter preferably includes: (1) multiple oversampling converters, each processing a different frequency band, operated in parallel; (2) multirate (i.e., polyphase) delta-sigma modulators (preferably second-order or higher); (3) multi-bit quantizers; (4) multi-bit-to-variable-level signal converters, such as resistor ladder networks or current source networks; (5) adaptive nonlinear, bit-mapping to compensate for mismatches in the multi-bit-to-variable-level signal converters (e.g., by mimicking such mismatches and then shifting the resulting noise to a frequently range where it will be filtered out by a corresponding bandpass (reconstruction) filter); (6) multi-band (e.g., programmable noise-transfer-function response) bandpass delta-sigma modulators; and/or (7) a digital pre-distortion linearizer (DPL) for canceling noise and distortion introduced by an analog signal bandpass (reconstruction) filter bank.
摘要翻译：尤其提供了用于将离散时间量化信号转换成连续时间连续可变信号的系统，装置，方法和技术。示例性转换器优选地包括：（1）多个过采样转换器，每个处理不同的频带，并行操作; （2）多速率（即多相）Δ-Σ调制器（优选二阶或更高）; （3）多位量化器; （4）多位到可变电平信号转换器，如电阻梯形网络或电流源网络; （5）自适应非线性比特映射以补偿多比特到可变电平信号转换器中的不匹配（例如，通过模拟这样的失配，然后将所得到的噪声移动到频率范围，其中将被滤波掉相应的带通（重建）滤波器）; （6）多频带（例如可编程噪声传递函数响应）带通Δ-Σ调制器; 和/或（7）用于消除由模拟信号带通（重构）滤波器组引入的噪声和失真的数字预失真线性化器（DPL）。

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