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1. 发明授权

US08698664B2 Continuous-time incremental analog-to-digital converter 有权
标题翻译：连续时间增量模数转换器
公开(公告)号：US08698664B2
公开(公告)日：2014-04-15
申请号：US13363884
申请日：2012-02-01
申请人： Omid Oliaei , Patrick L. Rakers
发明人： Omid Oliaei , Patrick L. Rakers
IPC分类号： H03M1/12
CPC分类号： H03M3/45 , H03M3/454
摘要： In accordance with embodiments of the present disclosure, a continuous-time incremental analog-to-digital converter (ADC) may include a plurality of resettable integrators and a feed-in gain element. Each integrator may be configured to convert a sum of signals received at its input to a signal indicative of an integral over time of the sum of signals. The plurality of integrators may include a first-stage integrator configured to receive at its input the baseband signal and a final-stage integrator configured to produce at its output a final-stage analog signal. The plurality of integrators may be arranged in a cascade configuration such that an output of each of the plurality of integrators other than the final-stage integrator is coupled to the input of a subsequent integrator. The feed-in gain element may be coupled between the input of the first-stage integrator and the input of another integrator of the plurality of integrators.
摘要翻译：根据本公开的实施例，连续时间增量模数转换器（ADC）可以包括多个可复位积分器和馈入增益元件。每个积分器可以被配置为将在其输入处接收的信号的和转换成指示信号总和的积分的信号。多个积分器可以包括被配置为在其输入处接收基带信号的第一级积分器和被配置为在其输出端产生最终级模拟信号的最终级积分器。多个积分器可以被布置成级联配置，使得除了最终级积分器之外的多个积分器中的每一个的输出耦合到后续积分器的输入。馈入增益元件可以耦合在第一级积分器的输入端和多个积分器的另一个积分器的输入端之间。

2. 发明授权

US08447246B2 System and method for a multi-band transmitter 有权
标题翻译：多波段发射机的系统和方法
公开(公告)号：US08447246B2
公开(公告)日：2013-05-21
申请号：US13207786
申请日：2011-08-11
申请人： Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
发明人： Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
IPC分类号： H04B1/04
CPC分类号： H03D7/1441 , H03D7/1458 , H03D2200/0023 , H04B1/0057 , H04B1/0483
摘要： In accordance with some embodiments of the present disclosure, a multi-band transmitter comprises a plurality of band paths with each band path configured for a different frequency range. Each band path comprises a modulator configured to modulate a data signal onto a carrier signal associated with the frequency range of the band path to generate a radio frequency (RF) signal associated with the band path and frequency range of the band path. Each band path also comprises a step-down balun that includes an input coil configured to receive the RF signal from the modulator. Each band path further comprises a tuner configured to tune the input coil to the frequency range of the band path. The tuner is also configured to compensate for off-state conduction of switches of the tuner to reduce non-linear tuning effects of the balun associated with the off-state conduction.
摘要翻译：根据本公开的一些实施例，多频带发射机包括多个频带路径，每个频带路径被配置用于不同的频率范围。每个频带路径包括被配置为将数据信号调制到与频带路径的频率范围相关联的载波信号上以产生与频带路径的频带路径和频带范围相关联的射频（RF）信号的调制器。每个频带路径还包括降压平衡 - 不平衡变压器，其包括被配置为从调制器接收RF信号的输入线圈。每个频带路径还包括被配置为将输入线圈调谐到频带路径的频率范围的调谐器。调谐器还被配置为补偿调谐器的开关的截止状态传导，以减少与断开状态传导相关联的平衡 - 不平衡变换器的非线性调谐效应。

3. 发明授权

US06697001B1 Continuous-time sigma-delta modulator with discrete time common-mode feedback 有权
标题翻译：具有离散时间共模反馈的连续时间Σ-Δ调制器
公开(公告)号：US06697001B1
公开(公告)日：2004-02-24
申请号：US10324684
申请日：2002-12-19
申请人： Omid Oliaei , Matthew R. Miller , Patrick L. Rakers
发明人： Omid Oliaei , Matthew R. Miller , Patrick L. Rakers
IPC分类号： H03M302
CPC分类号： H03M3/356 , H03M3/43 , H03M3/456
摘要： Systems and methods are described for a continuous-time sigma-delta modulator with discrete time common-mode feedback. The method includes calculating an integrator input signal as a difference between an input signal and a modulation feedback signal, continuous time integrating the integrator input signal to produce an integrator output signal having a common mode voltage, determining the common mode voltage of the integrator output signal using a discrete-time process, determining an integrator feedback signal as a function of the common-mode voltage and feeding back the feedback signal to the integrator in order to maintain the common mode voltage at a substantially constant value, sampling and quantizing the integrator output signal to produce a sigma-delta modulated output signal and converting the sigma-delta modulated output signal from a digital signal to an analog signal, to produce the modulation feedback signal.
摘要翻译：对具有离散时间共模反馈的连续时间Σ-Δ调制器描述了系统和方法。该方法包括：计算积分器输入信号作为输入信号和调制反馈信号之间的差值，连续时间积分积分器输入信号以产生具有共模电压的积分器输出信号，确定积分器输出信号的共模电压使用离散时间过程，确定作为共模电压的函数的积分器反馈信号并将反馈信号反馈到积分器，以便将共模电压保持在基本恒定的值，对积分器输出进行采样和量化信号以产生Σ-Δ调制输出信号，并将Σ-Δ调制输出信号从数字信号转换成模拟信号，以产生调制反馈信号。

4. 发明授权

US06693572B1 Digital tuning scheme for continuous-time sigma delta modulation 有权
标题翻译：用于连续时间Σ-Δ调制的数字调谐方案
公开(公告)号：US06693572B1
公开(公告)日：2004-02-17
申请号：US10358055
申请日：2003-02-04
申请人： Omid Oliaei , Matthew R. Miller , Patrick L. Rakers
发明人： Omid Oliaei , Matthew R. Miller , Patrick L. Rakers
IPC分类号： H03M300
CPC分类号： H03M3/382 , H03M3/43 , H03M3/456
摘要： Systems and methods are described for a digital tuning scheme for continuous-time sigma-delta modulation. The method includes integrating a voltage from a voltage source using a discrete-time integrator to produce a discrete-time integrator output, continuous-time integrating a current from a controllable current source to produce a continuous-time integrator output, quantizing the difference between the continuous-time integrator output and the discrete-time integrator output to produce a quantizer output, controlling a polarity of the controllable current source with the quantizer output, counting the quantizer output to produce a feedback signal, and tuning the controllable current source as a function of the feedback signal.
摘要翻译：描述了用于连续时间Σ-Δ调制的数字调谐方案的系统和方法。该方法包括使用离散时间积分器积分来自电压源的电压以产生离散时间积分器输出，将来自可控电流源的电流连续时间积分以产生连续时间积分器输出，量化连续时间积分器输出和离散时间积分器输出以产生量化器输出，通过量化器输出来控制可控电流源的极性，对量化器输出进行计数以产生反馈信号，以及调节可控电流源作为一个功能的反馈信号。

5. 发明申请

US20130194116A1 CONTINUOUS-TIME INCREMENTAL ANALOG-TO-DIGITAL CONVERTER 有权
标题翻译：连续模拟数字转换器
公开(公告)号：US20130194116A1
公开(公告)日：2013-08-01
申请号：US13363884
申请日：2012-02-01
申请人： Omid Oliaei , Patrick L. Rakers
发明人： Omid Oliaei , Patrick L. Rakers
IPC分类号： H03M1/12 , H03M1/10 , H03M1/00
CPC分类号： H03M3/45 , H03M3/454
摘要： In accordance with embodiments of the present disclosure, a continuous-time incremental analog-to-digital converter (ADC) may include a plurality of resettable integrators and a feed-in gain element. Each integrator may be configured to convert a sum of signals received at its input to a signal indicative of an integral over time of the sum of signals. The plurality of integrators may include a first-stage integrator configured to receive at its input the baseband signal and a final-stage integrator configured to produce at its output a final-stage analog signal. The plurality of integrators may be arranged in a cascade configuration such that an output of each of the plurality of integrators other than the final-stage integrator is coupled to the input of a subsequent integrator. The feed-in gain element may be coupled between the input of the first-stage integrator and the input of another integrator of the plurality of integrators.
摘要翻译：根据本公开的实施例，连续时间增量模数转换器（ADC）可以包括多个可复位积分器和馈入增益元件。每个积分器可以被配置为将在其输入处接收的信号的和转换成指示信号总和的积分的信号。多个积分器可以包括被配置为在其输入处接收基带信号的第一级积分器和被配置为在其输出端产生最终级模拟信号的最终级积分器。多个积分器可以被布置成级联配置，使得除了最终级积分器之外的多个积分器中的每一个的输出耦合到后续积分器的输入。馈入增益元件可以耦合在第一级积分器的输入端和多个积分器的另一个积分器的输入端之间。

6. 发明申请

US20130039438A1 SYSTEM AND METHOD FOR A MULTI-BAND TRANSMITTER 有权
标题翻译：一种多带发射机的系统和方法
公开(公告)号：US20130039438A1
公开(公告)日：2013-02-14
申请号：US13207786
申请日：2011-08-11
申请人： Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
发明人： Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
IPC分类号： H04L27/00
CPC分类号： H03D7/1441 , H03D7/1458 , H03D2200/0023 , H04B1/0057 , H04B1/0483
摘要： In accordance with some embodiments of the present disclosure, a multi-band transmitter comprises a plurality of band paths with each band path configured for a different frequency range. Each band path comprises a modulator configured to modulate a data signal onto a carrier signal associated with the frequency range of the band path to generate a radio frequency (RF) signal associated with the band path and frequency range of the band path. Each band path also comprises a step-down balun that includes an input coil configured to receive the RF signal from the modulator. Each band path further comprises a tuner configured to tune the input coil to the frequency range of the band path. The tuner is also configured to compensate for off-state conduction of switches of the tuner to reduce non-linear tuning effects of the balun associated with the off-state conduction.
摘要翻译：根据本公开的一些实施例，多频带发射机包括多个频带路径，每个频带路径被配置用于不同的频率范围。每个频带路径包括被配置为将数据信号调制到与频带路径的频率范围相关联的载波信号上以产生与频带路径的频带路径和频带范围相关联的射频（RF）信号的调制器。每个频带路径还包括降压平衡 - 不平衡变压器，其包括被配置为从调制器接收RF信号的输入线圈。每个频带路径还包括被配置为将输入线圈调谐到频带路径的频率范围的调谐器。调谐器还被配置为补偿调谐器的开关的截止状态传导，以减少与断开状态传导相关联的平衡 - 不平衡变换器的非线性调谐效应。

7. 发明授权

US08711980B2 Receiver with feedback continuous-time delta-sigma modulator with current-mode input 失效
标题翻译：具有反馈连续时间Δ-Σ调制器的接收器，具有电流模式输入
公开(公告)号：US08711980B2
公开(公告)日：2014-04-29
申请号：US12879477
申请日：2010-09-10
申请人： Omid Oliaei
发明人： Omid Oliaei
IPC分类号： H03K9/00
CPC分类号： H03M3/454 , H03M3/424 , H04B1/0014
摘要： In accordance with some embodiments of the present disclosure, a receiver may include a downconverter configured to demodulate a modulated wireless signal to produce a current-mode baseband signal and an analog-to-digital converter (ADC) configured to convert the current-mode baseband signal into a digital output signal. The downconverter may be coupled to the ADC without an intervening filter element.
摘要翻译：根据本公开的一些实施例，接收机可以包括下变频器，其被配置为解调调制的无线信号以产生电流模式基带信号;以及模数转换器（ADC），其被配置为将当前模式基带信号转换为数字输出信号。下变频器可以耦合到ADC而没有中间滤波器元件。

8. 发明授权

US08463206B2 System and method for preserving input impedance of a current-mode circuit 有权
标题翻译：用于保持电流模式电路的输入阻抗的系统和方法
公开(公告)号：US08463206B2
公开(公告)日：2013-06-11
申请号：US13207672
申请日：2011-08-11
申请人： Chuanzhao Yu , Omid Oliaei , David Newman , Michael L. Gomez
发明人： Chuanzhao Yu , Omid Oliaei , David Newman , Michael L. Gomez
IPC分类号： H04B1/04
CPC分类号： H03F3/193
摘要： In accordance with some embodiments of the present disclosure, a circuit comprises an input node configured to receive a current-mode input signal and an input stage that includes an input device communicatively coupled to the input node. The input device is configured to receive the input signal at the input node. The circuit additionally comprises bias circuitry communicatively coupled to the input stage and configured to provide a bias current for the input device. The bias circuitry is also configured to remove at least a portion of the bias current from the input signal through a feedback loop associated with the input node such that the input signal is received by the input device with at least a portion of the bias current removed. The circuit further comprises an output stage communicatively coupled to the input stage and configured to output a current-mode output signal based on the input signal.
摘要翻译：根据本公开的一些实施例，电路包括被配置为接收电流模式输入信号的输入节点和包括通信地耦合到输入节点的输入设备的输入级。输入设备被配置为在输入节点处接收输入信号。电路还包括通信地耦合到输入级并被配置为为输入设备提供偏置电流的偏置电路。偏置电路还被配置为通过与输入节点相关联的反馈回路从输入信号中去除偏置电流的至少一部分，使得输入信号由输入装置接收，其中偏置电流的至少一部分被去除。电路还包括通信地耦合到输入级并被配置为基于输入信号输出电流模式输出信号的输出级。

9. 发明授权

US08447256B2 Digital voltage-controlled attenuator 有权
标题翻译：数字电压控制衰减器
公开(公告)号：US08447256B2
公开(公告)日：2013-05-21
申请号：US13207649
申请日：2011-08-11
申请人： Kurt B. Hausmann , Omid Oliaei
发明人： Kurt B. Hausmann , Omid Oliaei
IPC分类号： H04B1/18 , H03H5/00 , H01P1/00
CPC分类号： H03H7/25
摘要： In accordance with some embodiments of the present disclosure an attenuating circuit comprises a balun configured to receive a radio frequency (RF) signal at first and second input ports and configured to output the RF signal. The circuit further comprises an attenuator coupled in parallel with the first and second input ports. A power level of the RF signal output by the balun is based at least partially on an impedance of the attenuator. The attenuator comprises a resistor ladder configured to receive at least a portion of the RF signal and a plurality of switches coupled to the resistor ladder. The plurality of switches are configured to open and close such that the impedance of the attenuator is a function of which switches are open and closed. Therefore, the power of the RF signal is controlled based at least on the opening and closing of the switches.
摘要翻译：根据本公开的一些实施例，衰减电路包括被配置为在第一和第二输入端口处接收射频（RF）信号并被配置为输出RF信号的平衡 - 不平衡变换器。电路还包括与第一和第二输入端口并联耦合的衰减器。由平衡 - 不平衡变换器输出的RF信号的功率电平至少部分地基于衰减器的阻抗。衰减器包括被配置为接收RF信号的至少一部分的电阻器梯形以及耦合到电阻器梯的多个开关。多个开关被配置为打开和关闭，使得衰减器的阻抗是开关闭合的功能。因此，至少基于开关的打开和关闭来控制RF信号的功率。

10. 发明申请

US20120081203A1 System and Method for Multiple Band Transmission 有权
标题翻译：多频带传输的系统和方法
公开(公告)号：US20120081203A1
公开(公告)日：2012-04-05
申请号：US12895086
申请日：2010-09-30
申请人： Omid Oliaei , Amit Bavisi
发明人： Omid Oliaei , Amit Bavisi
IPC分类号： H01F27/29
CPC分类号： H01F27/29 , H01F19/04
摘要： In accordance with embodiments of the present disclosure, a multi-tap integrated transformer may include one or more windings, wherein each of the one or more windings include at least one pair of primary taps for receiving at least one differential input signal, a first pair of secondary taps for outputting a first output signal, and a second pair of secondary taps for outputting a second output signal. The first and second output signals may be based on the at least one differential input signal and a mutual inductance between portions of the one or more windings associated with the at least one pair of primary taps, the first pair of secondary taps, and the second pair of secondary taps.
摘要翻译：根据本公开的实施例，多抽头集成变压器可以包括一个或多个绕组，其中一个或多个绕组中的每个绕组包括用于接收至少一个差分输入信号的至少一对主抽头，第一对用于输出第一输出信号的第二抽头和用于输出第二输出信号的第二对次级抽头。所述第一和第二输出信号可以基于所述至少一个差分输入信号和与所述至少一对主抽头，所述第一对次级抽头相关联的所述一个或多个绕组的所述部分之间的互感，一对二次水龙头。

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