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1. 发明申请

US20120043996A1 LINEAR TRANSCONDUCTOR FOR RF COMMUNICATIONS 有权
标题翻译：用于射频通信的线性TRANSCONDUCTOR
公开(公告)号：US20120043996A1
公开(公告)日：2012-02-23
申请号：US13288265
申请日：2011-11-03
申请人： Harish Muthali , Kenneth Charles Barnett
发明人： Harish Muthali , Kenneth Charles Barnett
IPC分类号： H02M11/00
CPC分类号： H03F3/45188 , H03F1/32 , H03F1/3211 , H03F3/45 , H03F3/45659 , H03F2200/357 , H03F2203/45068 , H03F2203/45318 , H03F2203/45352
摘要： The present patent application comprises a linear transconductor having at least one input and at least one output, comprising a differential amplifier having a plurality of transistors and a plurality of inputs, wherein a difference of input signals is amplified, a cascode circuit having a plurality of transistors, wherein the transistors are operably connected to the differential amplifier, wherein reverse isolation between an input and an output of the linear transconductor is improved by decoupling the input and the output of the linear transconductor by mounting at least one transistor of the plurality of transistors of the cascode circuit as a common-gate stacked on the at least one transistor of the differential amplifier, an active load having a plurality of transistors operably connected between the cascode circuit and supply voltage, and an auxiliary device operably connected to the connection between the active load, the cascode device and ground.
摘要翻译：本专利申请包括具有至少一个输入和至少一个输出的线性跨导体，包括具有多个晶体管和多个输入的差分放大器，其中放大输入信号的差异，具有多个输入信号的共源共栅电路晶体管，其中晶体管可操作地连接到差分放大器，其中线性跨导器的输入和输出之间的反向隔离通过将多个晶体管中的至少一个晶体管安装到线性跨导器的输入和输出而被改善作为堆叠在差分放大器的至少一个晶体管上的公共栅极的共源共栅电路，具有可操作地连接在共源共栅电路和电源电压之间的多个晶体管的有源负载和可操作地连接到所述串联电路之间的连接的辅助装置有源负载，共源共栅器件和地。

2. 发明授权

US08086207B2 Linear transconductor for RF communications 有权
标题翻译：用于射频通信的线性跨导器
公开(公告)号：US08086207B2
公开(公告)日：2011-12-27
申请号：US11761947
申请日：2007-06-12
申请人： Harish Muthali , Kenneth Charles Barnett
发明人： Harish Muthali , Kenneth Charles Barnett
IPC分类号： H04B1/26 , H04B1/28
CPC分类号： H03F3/45188 , H03F1/32 , H03F1/3211 , H03F3/45 , H03F3/45659 , H03F2200/357 , H03F2203/45068 , H03F2203/45318 , H03F2203/45352
摘要： The present patent application comprises a linear transconductor having at least one input and at least one output, comprising a differential amplifier having a plurality of transistors and a plurality of inputs, wherein a difference of input signals is amplified, a cascode circuit having a plurality of transistors, wherein the transistors are operably connected to the differential amplifier, wherein reverse isolation between an input and an output of the linear transconductor is improved by decoupling the input and the output of the linear transconductor by mounting at least one transistor of the plurality of transistors of the cascode circuit as a common-gate stacked on the at least one transistor of the differential amplifier, an active load having a plurality of transistors operably connected between the cascode circuit and supply voltage, and an auxiliary device operably connected to the connection between the active load, the cascode device and ground.
摘要翻译：本专利申请包括具有至少一个输入和至少一个输出的线性跨导体，包括具有多个晶体管和多个输入的差分放大器，其中放大输入信号的差异，具有多个输入信号的共源共栅电路晶体管，其中晶体管可操作地连接到差分放大器，其中线性跨导器的输入和输出之间的反向隔离通过将多个晶体管中的至少一个晶体管安装到线性跨导器的输入和输出而被改善作为堆叠在差分放大器的至少一个晶体管上的公共栅极的共源共栅电路，具有可操作地连接在共源共栅电路和电源电压之间的多个晶体管的有源负载和可操作地连接到所述串联电路之间的连接的辅助装置有源负载，共源共栅器件和地。

3. 发明授权

US08058901B2 Latch structure, frequency divider, and methods for operating same 有权
标题翻译：锁存结构，分频器和操作方法
公开(公告)号：US08058901B2
公开(公告)日：2011-11-15
申请号：US12552810
申请日：2009-09-02
申请人： Kun Zhang , Kenneth Charles Barnett
发明人： Kun Zhang , Kenneth Charles Barnett
IPC分类号： H03K19/173
CPC分类号： H03K3/356121 , H03K5/1565 , H03K23/544
摘要： A latch includes three circuits. The first circuit drives a first output (QB) to a first level when a first input (D) and a first clock phase (CK) are both low, to a second level when D and CK are both high, and provides high impedance (HI-Z) when different logic levels are applied to D and CK. The second circuit drives a second output (Q) to the first level when a third input (DB) and a complimentary clock phase (CKB) are both low, to the second level when DB and CKB are both high, and provides HI-Z when different logic levels are applied to DB and CKB. The third circuit maintains voltages of Q and QB when the first and second circuits provide HI-Z at Q and QB. Odd-number dividers constructed with such latches produce 50% duty cycle operation without restricting output pulse widths to integer multiples of input periods.
摘要翻译：闩锁包括三个电路。当D和CK均为高电平时，当第一输入（D）和第一时钟相位（CK）均为低电平时，第一电路将第一输出（QB）驱动到第一电平，并提供高阻抗（当对D和CK应用不同的逻辑电平时，HI-Z）。当DB和CKB均为高电平时，第三输入（DB）和互补时钟相位（CKB）均为低电平时，第二电路将第二输出（Q）驱动到第一电平，并提供HI-Z 当DB和CKB应用不同的逻辑电平时。当第一和第二电路在Q和QB提供HI-Z时，第三电路维持Q和QB的电压。使用这种锁存器构造的奇数分频器可以产生50％的占空比运算，而不会将输出脉冲宽度限制为输入周期的整数倍。

4. 发明授权

US07834698B2 Amplifier with improved linearization 有权
标题翻译：放大器具有改进的线性化
公开(公告)号：US07834698B2
公开(公告)日：2010-11-16
申请号：US12126189
申请日：2008-05-23
申请人： Susanta Sengupta , Kenneth Charles Barnett
发明人： Susanta Sengupta , Kenneth Charles Barnett
IPC分类号： H03F3/45
CPC分类号： H03F1/3211 , H03F3/195 , H03F3/45179 , H03F2200/294 , H03F2203/45018 , H03F2203/45454 , H03F2203/45512 , H03F2203/45544
摘要： According to some embodiments, an amplifier may include a transconductance stage, a tail current source stage, and an adaptive biasing stage. The transconductance stage may be configured to receive an input voltage. The tail current source stage may be configured to provide current to the transconductance stage. The adaptive biasing stage may capacitively couple the transconductance stage to the tail current source stage.
摘要翻译：根据一些实施例，放大器可以包括跨导级，尾电流源级和自适应偏置级。跨导级可以被配置为接收输入电压。尾电流源级可以被配置为向跨导级提供电流。自适应偏置级可以将跨导级电容耦合到尾电流源级。

5. 发明授权

US07660598B2 Transmit power reduction for a wireless device with multiple transmit signal paths 有权
标题翻译：具有多个发射信号路径的无线设备的发射功率降低
公开(公告)号：US07660598B2
公开(公告)日：2010-02-09
申请号：US11020054
申请日：2004-12-21
申请人： Kenneth Charles Barnett , Charles J. Persico , Paul Peterzell
发明人： Kenneth Charles Barnett , Charles J. Persico , Paul Peterzell
IPC分类号： H04B7/00
CPC分类号： H04B7/0691 , H04B7/0404 , H04B7/0608 , H04B7/0619 , H04B7/10 , H04W52/221 , H04W52/42
摘要： A wireless device is equipped with multiple (e.g., two) antennas, which may be of different designs. Each antenna interacts with the wireless environment in a different manner and achieves different scattering effect. The wireless device has one transmit signal path for each antenna. Each transmit signal path generates an RF output signal for transmission from the associated antenna. The wireless device controls the operation of one or more transmit signal paths to achieve a larger received signal level at a receiving base station. The wireless device may (1) autonomously adjust the transmit signal path(s) without relying on any feedback from the base station or (2) adjust the transmit signal path(s) based on transmit power control (TPC) commands received from the base station. The wireless device may selectively enable and disable each transmit signal path, vary the phase and/or gain of each transmit signal path, and so on.
摘要翻译：无线设备配备有可以具有不同设计的多个（例如，两个）天线。每个天线以不同的方式与无线环境进行互动，并实现不同的散射效果。无线设备对于每个天线具有一个发射信号路径。每个发射信号路径产生用于从相关天线发射的RF输出信号。无线设备控制一个或多个发射信号路径的操作以在接收基站实现更大的接收信号电平。无线设备可以（1）自主地调整发送信号路径，而不依赖于来自基站的任何反馈，或（2）基于从基站接收的发送功率控制（TPC）命令来调整发送信号路径站。无线设备可以选择性地启用和禁用每个发射信号路径，改变每个发射信号路径的相位和/或增益等等。

6. 发明申请

US20090289715A1 AMPLIFIER WITH IMPROVED LINEARIZATION 有权
标题翻译：具有改进线性化的放大器
公开(公告)号：US20090289715A1
公开(公告)日：2009-11-26
申请号：US12126189
申请日：2008-05-23
申请人： Susanta Sengupta , Kenneth Charles Barnett
发明人： Susanta Sengupta , Kenneth Charles Barnett
IPC分类号： H03F3/45
CPC分类号： H03F1/3211 , H03F3/195 , H03F3/45179 , H03F2200/294 , H03F2203/45018 , H03F2203/45454 , H03F2203/45512 , H03F2203/45544
摘要： According to some embodiments, an amplifier may include a transconductance stage, a tail current source stage, and an adaptive biasing stage. The transconductance stage may be configured to receive an input voltage. The tail current source stage may be configured to provide current to the transconductance stage. The adaptive biasing stage may capacitively couple the transconductance stage to the tail current source stage.
摘要翻译：根据一些实施例，放大器可以包括跨导级，尾电流源级和自适应偏置级。跨导级可以被配置为接收输入电压。尾电流源级可以被配置为向跨导级提供电流。自适应偏置级可以将跨导级电容耦合到尾电流源级。

7. 发明授权

US07598793B1 Capacitance multiplier circuit 有权
标题翻译：电容倍增电路
公开(公告)号：US07598793B1
公开(公告)日：2009-10-06
申请号：US12053388
申请日：2008-03-21
申请人： Susanta Sengupta , Kenneth Charles Barnett
发明人： Susanta Sengupta , Kenneth Charles Barnett
IPC分类号： H03H11/40
CPC分类号： H03H11/405 , H03F3/45183 , H03F3/45659 , H03F2200/456 , H03F2203/45318 , H03F2203/45526 , H03F2203/45646 , H03H11/0416 , H03H11/483
摘要： A capacitance multiplier circuit is configured to sense a current through a capacitor in an RC filter of the circuit and to multiply the current so as to achieve a capacitance multiplier effect without adding additional circuitry or requiring additional power. The circuit includes an RC filter, a first signal path connected to a filter output, and a second signal path connected to an input to the filter. A current output through the filter (iout) is split between the two paths, sensed in the first path and multiplied in the second path. The multiplied current is fed back from the second path to the filter input to raise the effective capacitance of capacitor C. The capacitance multiplier circuit, in raising the effective capacitance of the capacitor in the filter, does not affect the frequency response, linearity performance and/or stability of the overall circuit.
摘要翻译：电容乘法器电路被配置为感测通过电路的RC滤波器中的电容器的电流，并且乘以电流以实现电容倍增器效应，而不增加附加电路或需要额外的功率。电路包括RC滤波器，连接到滤波器输出的第一信号路径和连接到滤波器的输入端的第二信号路径。通过滤波器（iout）的电流输出在两条路径之间分开，在第一路径中感测并在第二条路径中相乘。倍增电流从第二路径反馈到滤波器输入，以提高电容器C的有效电容。电容乘法器电路在提高滤波器中的电容器的有效电容时不影响频率响应，线性性能和 /或整体电路的稳定性。

8. 发明授权

US08589750B2 Methods and apparatus for providing a built-in self test 有权
标题翻译：提供内置自检的方法和设备
公开(公告)号：US08589750B2
公开(公告)日：2013-11-19
申请号：US12836462
申请日：2010-07-14
申请人： Gaurab Banerjee , Manas Behera , Kenneth Charles Barnett
发明人： Gaurab Banerjee , Manas Behera , Kenneth Charles Barnett
IPC分类号： H03M13/00
CPC分类号： G01R31/3187 , G06F11/27
摘要： A built-in self test (BiST) system is described. The BiST system includes a circuit-under-test. The BiST system also includes one or more embedded sensors. Each of the embedded sensors includes one or more switches connected to one or more nodes within the circuit-under-test. The BiST system further includes a signal generator. The BiST system also includes a bus interface. The bus interface provides for external access of the BiST system.
摘要翻译：描述了内置的自检（BiST）系统。 BiST系统包括一个电路不足测试。 BiST系统还包括一个或多个嵌入式传感器。每个嵌入式传感器包括连接到被测电路中的一个或多个节点的一个或多个开关。 BiST系统还包括信号发生器。 BiST系统还包括总线接口。总线接口提供BiST系统的外部访问。

9. 发明授权

US08385872B2 Linear transconductor for RF communications 有权
标题翻译：用于射频通信的线性跨导器
公开(公告)号：US08385872B2
公开(公告)日：2013-02-26
申请号：US13288265
申请日：2011-11-03
申请人： Harish S. Muthali , Kenneth Charles Barnett
发明人： Harish S. Muthali , Kenneth Charles Barnett
IPC分类号： H04B1/10 , H04B1/04
CPC分类号： H03F3/45188 , H03F1/32 , H03F1/3211 , H03F3/45 , H03F3/45659 , H03F2200/357 , H03F2203/45068 , H03F2203/45318 , H03F2203/45352
摘要： The present patent application comprises a linear transconductor having at least one input and at least one output, comprising a differential amplifier having a plurality of transistors and a plurality of inputs, wherein a difference of input signals is amplified, a cascode circuit having a plurality of transistors, wherein the transistors are operably connected to the differential amplifier, wherein reverse isolation between an input and an output of the linear transconductor is improved by decoupling the input and the output of the linear transconductor by mounting at least one transistor of the plurality of transistors of the cascode circuit as a common-gate stacked on the at least one transistor of the differential amplifier, an active load having a plurality of transistors operably connected between the cascode circuit and supply voltage, and an auxiliary device operably connected to the connection between the active load, the cascode device and ground.
摘要翻译：本专利申请包括具有至少一个输入和至少一个输出的线性跨导体，包括具有多个晶体管和多个输入的差分放大器，其中放大输入信号的差异，具有多个输入信号的共源共栅电路晶体管，其中晶体管可操作地连接到差分放大器，其中线性跨导器的输入和输出之间的反向隔离通过将多个晶体管中的至少一个晶体管安装到线性跨导器的输入和输出而被改善作为堆叠在差分放大器的至少一个晶体管上的公共栅极的共源共栅电路，具有可操作地连接在共源共栅电路和电源电压之间的多个晶体管的有源负载和可操作地连接到所述串联电路之间的连接的辅助装置有源负载，共源共栅器件和地。

10. 发明授权

US07949322B2 Frequency selective amplifier with wide-band impedance and noise matching 有权
标题翻译：具有宽带阻抗和噪声匹配的频率选择放大器
公开(公告)号：US07949322B2
公开(公告)日：2011-05-24
申请号：US11684120
申请日：2007-03-09
申请人： Tae Wook Kim , Kenneth Charles Barnett
发明人： Tae Wook Kim , Kenneth Charles Barnett
IPC分类号： H04B1/06 , H04B1/16 , H03F3/52
CPC分类号： H03F1/56 , H03F3/45188 , H03F2203/45296 , H03F2203/45316 , H03F2203/45511 , H03F2203/45512 , H03F2203/45704 , H03H11/1291
摘要： This disclosure is directed to a frequency-selective low noise amplifier (LNA) with wide-band impedance and noise matching. The LNAS may include a closed loop circuit that supports wideband input matching. For example, the closed loop circuit may be configure to impedance match an input signal and provide a low noise figure. In addition, the LNA may include an open loop circuit that amplifies the input signal and provides a high output impedance. The open loop circuit may further include a selectivity filter that filters out frequencies outside a desired frequency band. The LNA may drive a tunable band-pass filter via the open loop circuit.
摘要翻译：本公开涉及具有宽带阻抗和噪声匹配的频率选择性低噪声放大器（LNA）。 LNAS可以包括支持宽带输入匹配的闭环电路。例如，闭环电路可以被配置为阻抗匹配输入信号并提供低噪声系数。此外，LNA可以包括放大输入信号并提供高输出阻抗的开环电路。开环电路还可以包括滤除期望频带外的频率的选择性滤波器。 LNA可以通过开环电路驱动可调谐带通滤波器。

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