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公开(公告)号：EP2446538B1
公开(公告)日：2019-03-27
申请号：EP10734856.7
申请日：2010-06-26
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3.发明公开CONVERSION OF A DISCRETE-TIME QUANTIZED SIGNAL INTO A CONTINUOUS-TIME, CONTINUOUSLY VARIABLE SIGNAL 有权一个离散时间量化信号准时间连续连续变量信号转换
公开(公告)号：EP2514098A1
公开(公告)日：2012-10-24
申请号：EP10798430.4
申请日：2010-12-16
申请人： Syntropy Systems
IPC分类号： H03M3/04
CPC分类号： H03M3/50 , H03M3/358 , H03M3/502 , H03M7/3026 , H03M7/3033
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 non-linear, 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.-
公开(公告)号：EP3191912B1
公开(公告)日：2019-10-02
申请号：EP15731778.5
申请日：2015-06-05
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公开(公告)号：EP3180856A4
公开(公告)日：2018-04-18
申请号：EP15832458
申请日：2015-07-29
申请人： SYNTROPY SYSTEMS LLC
IPC分类号： H03M3/00
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.
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公开(公告)号：EP2522077A1
公开(公告)日：2012-11-14
申请号：EP11700293.1
申请日：2011-01-05
IPC分类号： H03M3/00
摘要： Provided are, among other things, systems, methods and techniques for converting a continuous-time, continuously variable signal into a sampled and quantized signal. According to one implementation, an apparatus includes multiple processing branches, each including: a continuous-time quantization-noise-shaping circuit, a sampling/quantization circuit, and a digital bandpass filter. A combining circuit then combines signals at the processing branch outputs into a final output signal. The continuous-time quantization-noise-shaping circuits include adjustable circuit components for changing their quantization-noise frequency-response minimum, and the digital bandpass filters include adjustable parameters for changing their frequency passbands.
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公开(公告)号：EP2522076A1
公开(公告)日：2012-11-14
申请号：EP11700210.5
申请日：2011-01-05
IPC分类号： H03M3/00
摘要： Provided are, among other things, systems, methods and techniques for converting a continuous-time, continuously variable signal into a sampled and quantized signal. According to one implementation, an apparatus includes multiple processing branches, each including: a continuous-time quantization-noise-shaping circuit, a sampling/quantization circuit, and a digital bandpass filter. A combining circuit then combines signals at the processing branch outputs into a final output signal. The continuous-time quantization-noise-shaping circuits include adjustable circuit components for changing their quantization-noise frequency-response minimum, and the digital bandpass filters include adjustable parameters for changing their frequency passbands.
摘要翻译： 提供了用于将连续时间的连续可变信号转换为采样和量化信号的系统，方法和技术。 根据一个实施方式，一种装置包括多个处理分支，每个处理分支包括：连续时间量化噪声整形电路，采样/量化电路和数字带通滤波器。 组合电路然后将处理分支输出处的信号组合成最终输出信号。 连续时间量化噪声整形电路包括用于改变其量化噪声频率响应最小值的可调电路组件，并且数字带通滤波器包括用于改变其频率通带的可调参数。
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公开(公告)号：EP3191912A1
公开(公告)日：2017-07-19
申请号：EP15731778.5
申请日：2015-06-05
CPC分类号： H03H17/04 , G06F1/022 , G06F1/0328
摘要： Provided are, among other things, systems, apparatuses methods and techniques for generating discrete-time sinusoidal sequences. One such apparatus includes a plurality of parallel processing branches, with each of the parallel processing branches operating at a subsampled rate and utilizing a recursive filter to generate sub-rate samples which represent a different subsampling phase of a complete signal that is output by the apparatus.
摘要翻译： 除其他之外，提供了用于生成离散时间正弦序列的系统，设备方法和技术。 一个这样的设备包括多个并行处理分支，并行处理分支中的每一个以二次采样速率操作并且利用递归滤波器来生成子速率采样，所述子速率采样表示由设备输出的完整信号的不同子采样相位 。
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9.发明授权Apparatuses and methods for linear to discrete quantization conversion with reduced sampling-variation errors 有权装置和具有减少的Abtastvariationsfehlern为线性 - 离散Quantisierungskonvertierung方法
公开(公告)号：EP2860874B1
公开(公告)日：2016-12-14
申请号：EP13188453.8
申请日：2013-10-14
申请人： Syntropy Systems
CPC分类号： H03M1/0624 , G06G7/18 , H03M1/0836 , H03M1/121 , H03M3/324 , H03M3/372 , H03M3/468
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10.发明公开Apparatuses and methods for linear to discrete quantization conversion with reduced sampling-variation errors 有权装置和具有减少的Abtastvariationsfehlern为线性 - 离散Quantisierungskonvertierung方法
公开(公告)号：EP2860874A1
公开(公告)日：2015-04-15
申请号：EP13188453.8
申请日：2013-10-14
申请人： Syntropy Systems
CPC分类号： H03M1/0624 , G06G7/18 , H03M1/0836 , H03M1/121 , H03M3/324 , H03M3/372 , 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，连续可变的信号转换成采样和量化信号，其在输入线包括用于在输入信号中，多个处理分支耦合到输入线接受，以及加法器耦合到所述多个输出端的装置 的处理分支。 每个处理分支包括采样/量化电路并且具有在采样/量化电路的输出耦合到输入的数字带通内插滤波器。 在处理分支不同者的数字带通内插滤波器具有频率响应并以不同的频率为中心。 在的处理分支中的至少一个数字带通内插滤波器包括：（i）一个正交下变频器，（ii）第一低通滤波器和第二低通滤波器，（iii）第一内插器和一个第二内插器，每一个都具有输入 用于输入变量值插值，和（iv）的正交上变频器。
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