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公开(公告)号：US20150136857A1
公开(公告)日：2015-05-21
申请号：US14535032
申请日：2014-11-06
发明人： Nicolas PILLIN , Goran STOJANOVIC , Tony GHUELDRE
CPC分类号： G01R19/04 , G06K7/0008 , G06K19/07 , G06K19/0713 , H03D1/10 , H03D1/18 , H03D2200/0011 , H03D2200/0043 , H03D2200/0098 , H04B5/0056 , H04L27/06
摘要： An envelope detector circuit, suitable for use in RFID tags, includes a voltage doubler circuit and a biasing voltage generating circuit which comprises components matched respectively to rectifying components of the voltage doubler circuit. A rectifying component of this voltage doubler circuit is formed by a transistor controlled by the biasing voltage generating circuit which provides a biasing voltage to a control gate of this transistor, the biasing voltage generating circuit being arranged so as to permit a determined forward biasing current to flow through the transistor and further rectifying elements of the voltage doubler circuit. This embodiment provides fast, highly sensitive detection of envelope waveforms in input signals. Thanks to the matched rectifying components, efficiency variations due to variations in manufacturing process can be eliminated. The envelope detector circuit is further arranged for maintaining a stable detection independent of variations in temperature.
摘要翻译： 适用于RFID标签的包络检测器电路包括倍压器电路和偏置电压产生电路，其包括分别匹配倍压器电路的整流部件的部件。 该倍压电路的整流元件是由偏置电压产生电路控制的晶体管形成的，该偏置电压产生电路向该晶体管的控制栅极提供偏置电压，偏置电压产生电路被布置成允许确定的正向偏置电流 流过晶体管并进一步整流元件的倍压器电路。 该实施例提供对输入信号中的包络波形的快速，高灵敏度的检测。 由于匹配的整流元件，可以消除由于制造过程中的变化引起的效率变化。 包络检测器电路还被布置成用于保持独立于温度变化的稳定检测。
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2.发明授权Linearity improvement over temperature using temperature dependent common-mode voltages in active mixer 有权在有源混频器中使用温度依赖共模电压的温度线性度提高公开(公告)号：US08754700B1
公开(公告)日：2014-06-17
申请号：US13732104
申请日：2012-12-31
发明人： Yoonhyuk Ro
IPC分类号： G06G7/16
CPC分类号： H03D7/1491 , H03D7/1441 , H03D7/1458 , H03D2200/0098
摘要： A mixer comprising a Gilbert cell configured to receive a baseband signal and a local oscillator signal, wherein the Gilbert cell comprises a baseband transistor and a local oscillator transistor, and a biasing circuit configured to generate a bias voltage that is inversely related to temperature and coupled to the local oscillator transistor.
摘要翻译： 一种混合器，包括被配置为接收基带信号和本地振荡器信号的吉尔伯特单元，其中所述吉尔伯特单元包括基带晶体管和本地振荡晶体管，以及偏置电路，其被配置为产生与温度成反比的偏置电压 到本地振荡晶体管。
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公开(公告)号：US09263787B2
公开(公告)日：2016-02-16
申请号：US14213897
申请日：2014-03-14
申请人： DockOn AG
发明人： Alexandre Dupuy , Forrest Brown , Patrick Rada
IPC分类号： H01P5/12 , H01P5/19 , H03D1/08 , H01Q7/00 , H01Q21/00 , H03D1/18 , H03D7/02 , H03D7/12 , H03D7/16 , H03F3/191
CPC分类号： H01P5/19 , H01Q7/00 , H01Q21/0075 , H03D1/08 , H03D1/18 , H03D7/02 , H03D7/12 , H03D7/165 , H03D7/166 , H03D11/04 , H03D11/08 , H03D2200/0043 , H03D2200/0098 , H03F1/08 , H03F3/04 , H03F3/191 , H03F2200/165 , H03F2200/294 , H03G11/04
摘要： An N-way radio frequency (RF) divider/combiner is formed as a combination including an input port electrically coupled to a first 2-way divider/combiner and a second 2-way divider/combiner. An antenna may be coupled to at least one port of the N-way divider. The antenna may be formed as a compound printed loop (CPL) antenna. The N-way RF divider/combiner may be configured to provide N inputs and M output ports, wherein N and M are integers and any of the M output ports and N input ports can be connected to any combinations of devices. Such devices may include, e.g., an antenna including but not limited to a CPL antenna, RF receive port, transmit port, amplifier, RF switch, low noise amplifier (LNA), oscillator, tuning circuit, matching circuit, lumped element circuit, active circuit, diode, adjustable inductive circuit, and adjustable capacitive circuit.
摘要翻译： 形成N路射频（RF）分频器/组合器作为组合，其包括电耦合到第一2路分频器/组合器和第二2路分频器/组合器的输入端口。 天线可以耦合到N路分频器的至少一个端口。 天线可以形成为复合印刷环（CPL）天线。 N路RF分频器/组合器可以被配置为提供N个输入和M个输出端口，其中N和M是整数，并且M个输出端口和N个输入端口中的任一个可以连接到设备的任何组合。 这样的设备可以包括例如包括但不限于CPL天线，RF接收端口，发射端口，放大器，RF开关，低噪声放大器（LNA），振荡器，调谐电路，匹配电路，集总元件电路，有源 电路，二极管，可调电感电路和可调容性电路。
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公开(公告)号：US20150295543A1
公开(公告)日：2015-10-15
申请号：US14750406
申请日：2015-06-25
申请人： DockOn AG
发明人： Forrest Brown , Patrick Rada , Alexandre Dupuy
CPC分类号： H01P5/19 , H01Q7/00 , H01Q21/0075 , H03D1/08 , H03D1/18 , H03D7/02 , H03D7/12 , H03D7/165 , H03D7/166 , H03D11/04 , H03D11/08 , H03D2200/0043 , H03D2200/0098 , H03F1/08 , H03F3/04 , H03F3/191 , H03F2200/165 , H03F2200/294 , H03G11/04
摘要： A logarithmic amplifier (LDA) is described that includes an amplifier configured to oscillate a modulated input signal, a feedback establishing a 180 degree phase shift between the amplifier input and the output and maintaining oscillation of the input signal, a parallel resonant circuit connected to the amplifier output causing the amplifier to resonate at or around a center frequency, and a controller connected to the amplifier input cyclically terminating oscillation of the input signal each time a pre-determined threshold of current is detected, the controller including a low pass filter configured to generate a second output signal having a repetition frequency. The LDA may be used for AM with or without a PLL and/or a superheterodyne. The LDA may be implemented as a mixer and used for phase demodulation. The LDA may be used for phase demodulation. The LDA may be used in place of a low noise amplifier.
摘要翻译： 描述了对数放大器（LDA），其包括被配置为振荡调制输入信号的放大器，在放大器输入和输出之间建立180度相移并保持输入信号的振荡的反馈，并联谐振电路 放大器输出使得放大器在中心频率处或周围谐振，以及连接到放大器输入端的控制器，每当检测到电流的预定阈值时循环地终止输入信号的振荡，则控制器包括低通滤波器， 产生具有重复频率的第二输出信号。 LDA可用于具有或不具有PLL和/或超外差的AM。 LDA可以实现为混频器并用于相位解调。 LDA可用于相位解调。 可以使用LDA代替低噪声放大器。
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5.发明申请LINEARITY IMPROVEMENT OVER TEMPERATURE USING TEMPERATURE DEPENDENT COMMON-MODE VOLTAGES IN ACTIVE MIXER 有权在主动混合器中使用温度依赖的共模电压的温度的线性改善公开(公告)号：US20140184301A1
公开(公告)日：2014-07-03
申请号：US13732104
申请日：2012-12-31
发明人： Yoonhyuk Ro
IPC分类号： H03D7/14
CPC分类号： H03D7/1491 , H03D7/1441 , H03D7/1458 , H03D2200/0098
摘要： A mixer comprising a Gilbert cell configured to receive a baseband signal and a local oscillator signal, wherein the Gilbert cell comprises a baseband transistor and a local oscillator transistor, and a biasing circuit configured to generate a bias voltage that is inversely related to temperature and coupled to the local oscillator transistor.
摘要翻译： 一种混合器，包括被配置为接收基带信号和本地振荡器信号的吉尔伯特单元，其中所述吉尔伯特单元包括基带晶体管和本地振荡晶体管，以及偏置电路，其被配置为产生与温度成反比的偏置电压 到本地振荡晶体管。
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公开(公告)号：US09397382B2
公开(公告)日：2016-07-19
申请号：US14214437
申请日：2014-03-14
申请人： DockOn AG
发明人： Forrest Brown , Patrick Rada , Alexandre Dupuy
IPC分类号： H03D11/08 , H01P5/19 , H03D1/08 , H03D11/04 , H01Q7/00 , H01Q21/00 , H03D1/18 , H03D7/02 , H03D7/12 , H03D7/16 , H03F3/191 , H03F1/08 , H03F3/04
CPC分类号： H01P5/19 , H01Q7/00 , H01Q21/0075 , H03D1/08 , H03D1/18 , H03D7/02 , H03D7/12 , H03D7/165 , H03D7/166 , H03D11/04 , H03D11/08 , H03D2200/0043 , H03D2200/0098 , H03F1/08 , H03F3/04 , H03F3/191 , H03F2200/165 , H03F2200/294 , H03G11/04
摘要： A logarithmic amplifier (LDA) is described that includes an amplifier configured to oscillate a modulated input signal, a feedback establishing a 180 degree phase shift between the amplifier input and the output and maintaining oscillation of the input signal, a parallel resonant circuit connected to the amplifier output causing the amplifier to resonate at or around a center frequency, and a controller connected to the amplifier input cyclically terminating oscillation of the input signal each time a pre-determined threshold of current is detected, the controller including a low pass filter configured to generate a second output signal having a repetition frequency. The LDA may be used for AM with or without a PLL and/or a superhetrodyne. The LDA may be implemented as a mixer and used for phase demodulation. The LDA may be used for phase demodulation. The LDA may be used in place of a low noise amplifier.
摘要翻译： 描述了对数放大器（LDA），其包括被配置为振荡调制输入信号的放大器，在放大器输入和输出之间建立180度相移并保持输入信号的振荡的反馈，并联谐振电路 放大器输出使得放大器在中心频率处或周围谐振，以及连接到放大器输入端的控制器，每当检测到电流的预定阈值时循环地终止输入信号的振荡，则控制器包括低通滤波器， 产生具有重复频率的第二输出信号。 LDA可用于具有或不具有PLL和/或超临界的AM。 LDA可以实现为混频器并用于相位解调。 LDA可用于相位解调。 可以使用LDA代替低噪声放大器。
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7.发明申请Low-Power, Noise Insensitive Communication Channel using Logarithmic Detector Amplifier (LDA) Demodulator 有权低功耗，噪声不敏感通信信道使用对数检波器放大器（LDA）解调器公开(公告)号：US20140269972A1
公开(公告)日：2014-09-18
申请号：US14210525
申请日：2014-03-14
申请人： DOCKON AG
发明人： Patrick Rada , Forrest Brown
CPC分类号： H04B1/3838 , H03D3/00 , H03D3/005 , H03D2200/0098 , H04B1/10 , H04B3/02 , H04B15/00 , H04L27/106 , H04L27/2014 , H04L27/2017 , H04M1/0202
摘要： A method is provided for communicating signals at a low power level in an electromagnetic interference (EMI) environment. A first device transmits a modulated signal having a first carrier frequency, including the encoded information via a hardwire transmission medium. In one aspect, the power level of the modulated signal can be adjusted to minimize power consumption or reduce the generation of EMI. The modulated signal may be in one of the following formats: frequency modulation (FM) or phase modulation (PM) to name a few examples. A second device including a logarithmic detector amplifier (LDA) demodulator circuit receives the signal, which may be mixed with EMI. The LDA demodulator circuit amplifies the modulated signal, without amplifying the EMI, to supply a demodulated baseband signal, which may be an n-ary digital signal, or an audio signal. A low-power, noise insensitive communication channel is also provided.
摘要翻译： 提供一种用于在电磁干扰（EMI）环境中以低功率电平传送信号的方法。 第一设备经由硬线传输介质发送包括经编码的信息的具有第一载波频率的调制信号。 在一个方面，可以调整调制信号的功率电平以最小化功耗或减少EMI的产生。 调制信号可以是以下格式之一：频率调制（FM）或相位调制（PM），仅举几个例子。 包括对数检波器放大器（LDA）解调器电路的第二设备接收可以与EMI混合的信号。 LDA解调器电路放大调制信号，而不放大EMI，以提供解调的基带信号，其可以是n元数字信号或音频信号。 还提供了低功率，噪声不敏感的通信信道。
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公开(公告)号：US20140266420A1
公开(公告)日：2014-09-18
申请号：US14214437
申请日：2014-03-14
申请人： DockOn AG
发明人： Forrest Brown , Patrick Rada , Alexandre Dupuy
CPC分类号： H01P5/19 , H01Q7/00 , H01Q21/0075 , H03D1/08 , H03D1/18 , H03D7/02 , H03D7/12 , H03D7/165 , H03D7/166 , H03D11/04 , H03D11/08 , H03D2200/0043 , H03D2200/0098 , H03F1/08 , H03F3/04 , H03F3/191 , H03F2200/165 , H03F2200/294 , H03G11/04
摘要： A logarithmic amplifier (LDA) is described that includes an amplifier configured to oscillate a modulated input signal, a feedback establishing a 180 degree phase shift between the amplifier input and the output and maintaining oscillation of the input signal, a parallel resonant circuit connected to the amplifier output causing the amplifier to resonate at or around a center frequency, and a controller connected to the amplifier input cyclically terminating oscillation of the input signal each time a pre-determined threshold of current is detected, the controller including a low pass filter configured to generate a second output signal having a repetition frequency. The LDA may be used for AM with or without a PLL and/or a superhetrodyne. The LDA may be implemented as a mixer and used for phase demodulation. The LDA may be used for phase demodulation. The LDA may be used in place of a low noise amplifier.
摘要翻译： 描述了对数放大器（LDA），其包括被配置为振荡调制输入信号的放大器，在放大器输入和输出之间建立180度相移并保持输入信号的振荡的反馈，并联谐振电路 放大器输出使得放大器在中心频率处或周围谐振，以及连接到放大器输入端的控制器，每当检测到电流的预定阈值时循环地终止输入信号的振荡，则控制器包括低通滤波器， 产生具有重复频率的第二输出信号。 LDA可用于具有或不具有PLL和/或超临界的AM。 LDA可以实现为混频器并用于相位解调。 LDA可用于相位解调。 可以使用LDA代替低噪声放大器。
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公开(公告)号：US08050649B2
公开(公告)日：2011-11-01
申请号：US11216857
申请日：2005-08-30
申请人： Minghui Chen , Yue Wu
发明人： Minghui Chen , Yue Wu
IPC分类号： H04B1/26
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1458 , H03D7/1483 , H03D7/1491 , H03D7/165 , H03D2200/0025 , H03D2200/0033 , H03D2200/0084 , H03D2200/0098
摘要： A downconversion mixer with IM2 cancellation includes a mixer, an IM2 generator, and a scaling unit. The mixer frequency downconverts an input RF signal with an LO signal and generates an output baseband signal. The IM2 generator includes first and second field effect transistors (FETs) that receive the input RF signal and generate an intermediate signal having IM2 distortion. The scaling unit scales the intermediate signal to generate a scaled signal and further combines the scaled signal with the output baseband signal to cancel IM2 distortion in the output baseband signal. The IM2 generator may further include first and second amplifiers coupled between the source and gate of the first and second FETs, respectively. Different amounts of IM2 distortion and different temperature variation patterns may be generated in the intermediate signal by using different gains for the amplifiers.
摘要翻译： 具有IM2消除的下变频混频器包括混频器，IM2发生器和缩放单元。 混频器降频转换具有LO信号的输入RF信号，并产生输出基带信号。 IM2发生器包括接收输入RF信号并产生具有IM2失真的中间信号的第一和第二场效应晶体管（FET）。 缩放单元缩放中间信号以产生缩放信号，并且进一步将缩放信号与输出基带信号组合以消除输出基带信号中的IM2失真。 IM2发生器还可以包括分别耦合在第一和第二FET的源极和栅极之间的第一和第二放大器。 通过对放大器使用不同的增益，可能在中间信号中产生不同量的IM2失真和不同的温度变化模式。
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公开(公告)号：US20160173050A9
公开(公告)日：2016-06-16
申请号：US14214437
申请日：2014-03-14
申请人： DockOn AG
发明人： Forrest Brown , Patrick Rada , Alexandre Dupuy
CPC分类号： H01P5/19 , H01Q7/00 , H01Q21/0075 , H03D1/08 , H03D1/18 , H03D7/02 , H03D7/12 , H03D7/165 , H03D7/166 , H03D11/04 , H03D11/08 , H03D2200/0043 , H03D2200/0098 , H03F1/08 , H03F3/04 , H03F3/191 , H03F2200/165 , H03F2200/294 , H03G11/04
摘要： A logarithmic amplifier (LDA) is described that includes an amplifier configured to oscillate a modulated input signal, a feedback establishing a 180 degree phase shift between the amplifier input and the output and maintaining oscillation of the input signal, a parallel resonant circuit connected to the amplifier output causing the amplifier to resonate at or around a center frequency, and a controller connected to the amplifier input cyclically terminating oscillation of the input signal each time a pre-determined threshold of current is detected, the controller including a low pass filter configured to generate a second output signal having a repetition frequency. The LDA may be used for AM with or without a PLL and/or a superhetrodyne. The LDA may be implemented as a mixer and used for phase demodulation. The LDA may be used for phase demodulation. The LDA may be used in place of a low noise amplifier.
摘要翻译： 描述了对数放大器（LDA），其包括被配置为振荡调制输入信号的放大器，在放大器输入和输出之间建立180度相移并保持输入信号的振荡的反馈，并联谐振电路 放大器输出使得放大器在中心频率处或周围谐振，以及连接到放大器输入端的控制器，每当检测到电流的预定阈值时循环地终止输入信号的振荡，则控制器包括低通滤波器， 产生具有重复频率的第二输出信号。 LDA可用于具有或不具有PLL和/或超临界的AM。 LDA可以实现为混频器并用于相位解调。 LDA可用于相位解调。 可以使用LDA代替低噪声放大器。
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