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公开(公告)号：US20120155632A1
公开(公告)日：2012-06-21
申请号：US13406567
申请日：2012-02-28
IPC分类号： H04M1/00
CPC分类号： H04M9/00 , A61F7/12 , A61F2007/126
摘要： A CODEC circuit for POTS system comprises a digital circuit for outputting a digital control signal having a first bit width, the digital control signal being indicative of a voltage to be applied to a POTS subscriber line pair. Further, the CODEC comprises a noise shaper coupled to an output of the digital circuit for generating a noise-shaped control signal and a digital-to-analog converter coupled to an output of the noise shaper, the input of the digital-to-analog converter having a second bit width being larger than 1 and smaller than the first bit width.
摘要翻译： 用于POTS系统的CODEC电路包括用于输出具有第一位宽度的数字控制信号的数字电路，数字控制信号指示要施加到POTS用户线对的电压。 此外，CODEC包括耦合到数字电路的输出的噪声整形器，用于产生噪声形状的控制信号，以及耦合到噪声整形器的输出的数模转换器，数模转换器 转换器具有大于1且小于第一位宽度的第二位宽度。
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公开(公告)号：US20080170682A1
公开(公告)日：2008-07-17
申请号：US11623283
申请日：2007-01-15
IPC分类号： H04M9/00
CPC分类号： H04M9/00 , A61F7/12 , A61F2007/126
摘要： A CODEC circuit for POTS system comprises a digital circuit for outputting a digital control signal having a first bit width, the digital control signal being indicative of a voltage to be applied to a POTS subscriber line pair. Further, the CODEC circuit comprises a noise shaper coupled to an output of the digital circuit for generating a noise-shaped control signal and a digital-to-analog converter coupled to an output of the noise shaper, the input of the digital-to-analog converter having a second bit width being larger than 1 and smaller than the first bit width.
摘要翻译： 用于POTS系统的CODEC电路包括用于输出具有第一位宽度的数字控制信号的数字电路，数字控制信号指示要施加到POTS用户线对的电压。 此外，CODEC电路包括耦合到数字电路的输出的噪声整形器，用于产生噪声形状的控制信号，以及耦合到噪声整形器的输出的数模转换器，数字 - 模拟转换器具有大于1且小于第一位宽的第二位宽度。
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公开(公告)号：US08787559B2
公开(公告)日：2014-07-22
申请号：US13406567
申请日：2012-02-28
CPC分类号： H04M9/00 , A61F7/12 , A61F2007/126
摘要： A CODEC circuit for POTS system comprises a digital circuit for outputting a digital control signal having a first bit width, the digital control signal being indicative of a voltage to be applied to a POTS subscriber line pair. Further, the CODEC comprises a noise shaper coupled to an output of the digital circuit for generating a noise-shaped control signal and a digital-to-analog converter coupled to an output of the noise shaper, the input of the digital-to-analog converter having a second bit width being larger than 1 and smaller than the first bit width.
摘要翻译： 用于POTS系统的CODEC电路包括用于输出具有第一位宽度的数字控制信号的数字电路，数字控制信号指示要施加到POTS用户线对的电压。 此外，CODEC包括耦合到数字电路的输出的噪声整形器，用于产生噪声形状的控制信号，以及耦合到噪声整形器的输出的数模转换器，数模转换器 转换器具有大于1且小于第一位宽度的第二位宽度。
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公开(公告)号：US08243916B2
公开(公告)日：2012-08-14
申请号：US11623283
申请日：2007-01-15
IPC分类号： H04M1/00
CPC分类号： H04M9/00 , A61F7/12 , A61F2007/126
摘要： A CODEC circuit for POTS system comprises a digital circuit for outputting a digital control signal having a first bit width, the digital control signal being indicative of a voltage to be applied to a POTS subscriber line pair. Further, the CODEC circuit comprises a noise shaper coupled to an output of the digital circuit for generating a noise-shaped control signal and a digital-to-analog converter coupled to an output of the noise shaper, the input of the digital-to-analog converter having a second bit width being larger than 1 and smaller than the first bit width.
摘要翻译： 用于POTS系统的CODEC电路包括用于输出具有第一位宽度的数字控制信号的数字电路，数字控制信号指示要施加到POTS用户线对的电压。 此外，CODEC电路包括耦合到数字电路的输出的噪声整形器，用于产生噪声形状的控制信号，以及耦合到噪声整形器的输出的数模转换器，数字 - 模拟转换器具有大于1且小于第一位宽的第二位宽度。
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公开(公告)号：US20120099724A1
公开(公告)日：2012-04-26
申请号：US13340180
申请日：2011-12-29
IPC分类号： H04M9/00
CPC分类号： H04M19/005
摘要： A control device includes a circuit operable to sense an analogue input voltage dependent on a line current flowing via a communication line of a terminal generate an analogue difference voltage in a constant line current operation based on a difference between the sensed analogue input voltage and an analogue feedback voltage which depends on an adjustable nominal direct-current value and filter a sequence of control error values from a sequence of digital difference voltage values converted from the generated analogue difference voltage. The circuit is further operable to convert a control value generated from the sequence of control error values in the constant line current operation to an analogue direct voltage for supplying the terminal and convert the nominal direct-current value into the analogue feedback voltage in the constant line current operation.
摘要翻译： 控制装置包括可操作用于感测取决于通过端子的通信线路流动的线电流的模拟输入电压的电路，其基于感测的模拟输入电压和模拟信号之间的差异在恒定电流操作中产生模拟差分电压 反馈电压取决于可调整的标称直流电流值，并根据从产生的模拟差分电压转换的数字差分电压值序列滤除一系列控制误差值。 该电路还可操作以将从恒定电流电流操作中的控制误差值序列产生的控制值转换为用于提供端子的模拟直流电压，并将标称直流值转换为恒定线路中的模拟反馈电压 当前操作。
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公开(公告)号：US08111824B2
公开(公告)日：2012-02-07
申请号：US12057547
申请日：2008-03-28
CPC分类号： H04M19/005
摘要： A control device for controlling a supply voltage which can be switched between a constant line current operation and a constant line voltage operation, wherein a line current, which consists of a direct current for supplying the terminal and of an alternating current for transmitting information, flows via a subscriber line of a terminal, comprising a sensing circuit for sensing an analogue input voltage dependent on the line current, a subtractor which, in the constant line current operation, subtracts an analogue feedback voltage dependent on an adjustable nominal direct-current value from the sensed input voltage for generating an analogue difference voltage, an analogue/digital converter for converting the generated analogue difference voltage into a digital difference voltage value, a digital low-pass filter for filtering a sequence of control error values out of the generated sequence of difference voltage values, a controller for generating a control value in dependence on the filtered-out sequence of control error values, and comprising a first digital/analogue converter which, in the constant line current operation, converts the control value in each case generated by the controller into the analogue direct voltage for supplying the terminal.
摘要翻译： 一种用于控制能够在恒定电流电流操作和恒定电压操作之间切换的电源电压的控制装置，其中由用于提供所述端子的直流电流和用于传输信息的交流电流组成的线路电流流动 通过终端的用户线路，包括用于感测取决于线路电流的模拟输入电压的感测电路;减法器，其在恒定电流电流操作中，根据可调整的标称直流电流值减去模拟反馈电压， 感测的用于产生模拟差分电压的输入电压，用于将所产生的模拟差分电压转换为数字差分电压值的模/数转换器，数字低通滤波器，用于从所生成的序列中产生的序列 差分电压值，用于根据所述控制值产生控制值的控制器 滤波出的控制误差值序列，并且包括第一数字/模拟转换器，其在恒定电流电流操作中将由控制器产生的每种情况下的控制值转换成用于提供端子的模拟直流电压。
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公开(公告)号：US08867736B2
公开(公告)日：2014-10-21
申请号：US13340180
申请日：2011-12-29
CPC分类号： H04M19/005
摘要： A control device includes a circuit operable to sense an analog input voltage dependent on a line current flowing via a communication line of a terminal generate an analog difference voltage in a constant line current operation based on a difference between the sensed analog input voltage and an analog feedback voltage which depends on an adjustable nominal direct-current value and filter a sequence of control error values from a sequence of digital difference voltage values converted from the generated analog difference voltage. The circuit is further operable to convert a control value generated from the sequence of control error values in the constant line current operation to an analog direct voltage for supplying the terminal and convert the nominal direct-current value into the analog feedback voltage in the constant line current operation.
摘要翻译： 控制装置包括可操作用于感测取决于通过端子的通信线流动的线电流的模拟输入电压的电路，其基于感测的模拟输入电压和模拟信号之间的差产生恒定电流电流操作中的模拟差分电压 反馈电压取决于可调整的标称直流值，并从根据所产生的模拟差分电压转换的数字差分电压值序列中滤除一系列控制误差值。 该电路还可操作以将在恒定电流操作中的控制误差值序列产生的控制值转换为用于提供端子的模拟直流电压，并将标称直流值转换成恒定线路中的模拟反馈电压 当前操作。
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公开(公告)号：US20090154691A1
公开(公告)日：2009-06-18
申请号：US12057547
申请日：2008-03-28
IPC分类号： H04M1/00
CPC分类号： H04M19/005
摘要： A control device for controlling a supply voltage which can be switched between a constant line current operation and a constant line voltage operation, wherein a line current, which consists of a direct current for supplying the terminal and of an alternating current for transmitting information, flows via a subscriber line of a terminal, comprising a sensing circuit for sensing an analogue input voltage dependent on the line current, a subtractor which, in the constant line current operation, subtracts an analogue feedback voltage dependent on an adjustable nominal direct-current value from the sensed input voltage for generating an analogue difference voltage, an analogue/digital converter for converting the generated analogue difference voltage into a digital difference voltage value, a digital low-pass filter for filtering a sequence of control error values out of the generated sequence of difference voltage values, a controller for generating a control value in dependence on the filtered-out sequence of control error values, and comprising a first digital/analogue converter which, in the constant line current operation, converts the control value in each case generated by the controller into the analogue direct voltage for supplying the terminal.
摘要翻译： 一种用于控制能够在恒定电流电流操作和恒定电压操作之间切换的电源电压的控制装置，其中由用于提供所述端子的直流电流和用于传输信息的交流电流组成的线路电流流动 通过终端的用户线路，包括用于感测取决于线路电流的模拟输入电压的感测电路;减法器，其在恒定电流电流操作中，根据可调整的标称直流电流值减去模拟反馈电压， 感测的用于产生模拟差分电压的输入电压，用于将所产生的模拟差分电压转换为数字差分电压值的模/数转换器，数字低通滤波器，用于从所生成的序列中产生的序列 差分电压值，用于根据所述控制值产生控制值的控制器 滤波出的控制误差值序列，并且包括第一数字/模拟转换器，其在恒定电流电流操作中将由控制器产生的每种情况下的控制值转换成用于提供端子的模拟直流电压。
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公开(公告)号：US07834696B2
公开(公告)日：2010-11-16
申请号：US12062539
申请日：2008-04-04
IPC分类号： H03F3/45
CPC分类号： H03F3/45475 , H03F3/45179 , H03F3/45632 , H03F3/45928 , H03F2203/45008 , H03F2203/45082 , H03F2203/45138 , H03F2203/45366 , H03F2203/45424
摘要： This disclosure relates to a common mode regulation in multi stage differential amplifiers.
摘要翻译： 本公开涉及多级差分放大器中的共模调节。
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10.发明授权公开(公告)号：US07379005B2
公开(公告)日：2008-05-27
申请号：US11516383
申请日：2006-09-06
申请人： Andreas Wiesbauer , Luis Hernandez , Dietmar Sträussnigg , Daniel Gruber , Richard Gaggl , Martin Clara , Stefan Matschitsch
发明人： Andreas Wiesbauer , Luis Hernandez , Dietmar Sträussnigg , Daniel Gruber , Richard Gaggl , Martin Clara , Stefan Matschitsch
IPC分类号： H03M1/66
摘要： Clock signal jitter detection circuit for detecting a clock signal jitter in a reference clock signal (CLK), having a switched-capacitor reference digital-analogue converter (15) which is clocked by the reference clock signal (CLK) and which converts a digital input signal into a first current, a current-controlled digital-analogue converter (16) which is clocked by the reference clock signal (CLK) and which converts the digital input signal into a second current, and having a current integrator (18) which integrates the difference between the first current and the second current to produce a signal which indicates the clock signal jitter in the reference clock signal (CLK).
摘要翻译： 用于检测参考时钟信号（CLK）中的时钟信号抖动的时钟信号抖动检测电路，具有由参考时钟信号（CLK）计时的开关电容器参考数模转换器（15），并转换数字输入 信号转换为第一电流，电流控制的数模转换器（16），其由参考时钟信号（CLK）计时，并将数字输入信号转换为第二电流，并具有积分器（18） 第一电流和第二电流之间的差异，以产生指示参考时钟信号（CLK）中的时钟信号抖动的信号。
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