RF Front-End with On-Chip Transmitter/Receiver Isolation Using the Hall Effect
    81.
    发明申请
    RF Front-End with On-Chip Transmitter/Receiver Isolation Using the Hall Effect 有权
    使用霍尔效应的片上发射器/接收器隔离的射频前端

    公开(公告)号:US20110158135A1

    公开(公告)日:2011-06-30

    申请号:US12727314

    申请日:2010-03-19

    Abstract: An RF front-end with on-chip transmitter/receiver isolation using a gyrator is presented herein. The RF front end is configured to support full-duplex communication and includes a gyrator and a transformer. The gyrator includes a metal plate and an inductor that are configured to isolate the input of a low-noise amplifier (LNA) from the output of a power amplifier (PA) using the Hall effect. The gyrator is further configured to isolate the output of the PA from the input of the LNA. The gyrator is at least partially or fully capable of being integrated on silicon-based substrate.

    Abstract translation: 本文介绍了使用回转器的片内发射机/接收机隔离的RF前端。 RF前端被配置为支持全双工通信,并且包括回转器和变压器。 回转器包括金属板和电感器,其被配置为使用霍尔效应将低噪声放大器(LNA)的输入与功率放大器(PA)的输出隔离。 回转器还被配置为将PA的输出与LNA的输入隔离。 回转器至少部分或完全能够集成在硅基基板上。

    Digital compensation for nonlinearities in a polar transmitter
    82.
    发明授权
    Digital compensation for nonlinearities in a polar transmitter 有权
    极地发射机的非线性数字补偿

    公开(公告)号:US07961812B2

    公开(公告)日:2011-06-14

    申请号:US12842963

    申请日:2010-07-23

    CPC classification number: H04B1/0475 H03C5/00 H03F1/0222 H03F1/3241

    Abstract: A polar transmitter includes a digital processor coupled to receive a complex modulated digital signal and a feedback signal produced from the complex modulated digital signal and that is operable to compare the complex modulated digital signal to the feedback signal to determine an error signal indicative of a difference between the complex modulated digital signal and the feedback signal. The digital processor is further operable to produce a correction signal from the error signal and to add the correction signal to the complex modulated digital signal to produce a corrected complex modulated digital signal.

    Abstract translation: 极性发射器包括耦合以接收复调制数字信号的数字处理器和从复调制数字信号产生的反馈信号,其可操作以将复调制数字信号与反馈信号进行比较,以确定指示差分的误差信号 在复调制数字信号与反馈信号之间。 数字处理器还可操作以从误差信号产生校正信号,并将校正信号添加到复调制数字信号以产生经校正的复数调制数字信号。

    Feedback-Based Linearization of Voltage Controlled Oscillator
    83.
    发明申请
    Feedback-Based Linearization of Voltage Controlled Oscillator 失效
    基于反馈的压控振荡器的线性化

    公开(公告)号:US20110057731A1

    公开(公告)日:2011-03-10

    申请号:US12557149

    申请日:2009-09-10

    CPC classification number: H03L7/099 H03L7/02 H03L7/07 H03L7/087 H03L2207/05

    Abstract: Embodiments of the present invention enable a feedback-based VCO linearization technique. Embodiments include a frequency locked loop formed by feeding back a VCO's output into the VCO's input in negative phase by means of a frequency-to-voltage (F/V) converter. Embodiments enable constant VCO gain over a wide input tuning range and across PVT variations. Further, embodiments can be nested within a PLL, for example, with negligible area and power consumption overhead.

    Abstract translation: 本发明的实施例能够实现基于反馈的VCO线性化技术。 实施例包括通过借助于频率 - 电压(F / V)转换器将VCO的输出反馈到VCO的负输入而形成的锁频环路。 实施例能够在宽的输入调谐范围和PVT变化范围内实现恒定的VCO增益。 此外,实施例可以嵌套在PLL内,例如具有可忽略的面积和功耗开销。

    Operational amplifiers having low-power unconditionally-stable common-mode feedback
    84.
    发明申请
    Operational amplifiers having low-power unconditionally-stable common-mode feedback 有权
    具有低功率无条件稳定共模反馈的运算放大器

    公开(公告)号:US20100327974A1

    公开(公告)日:2010-12-30

    申请号:US12458630

    申请日:2009-07-17

    Abstract: An operational amplifier is provided. The operational amplifier includes a first transistor configured to receive a first input voltage, a second transistor configured to receive a second input voltage, and a current steering module coupled to first and second transistors and configured to receive a reference voltage. The first and second transistors form a differential pair. The first transistor, second transistor, and current steering module are configured such that a current is steered from the current steering module or to the current steering module based on common-mode voltages of the first and second input voltages and the reference voltage to set a common-mode output voltage of the operational amplifier.

    Abstract translation: 提供运算放大器。 运算放大器包括被配置为接收第一输入电压的第一晶体管,被配置为接收第二输入电压的第二晶体管,以及耦合到第一和第二晶体管并被配置为接收参考电压的电流导向模块。 第一和第二晶体管形成差分对。 第一晶体管,第二晶体管和电流转向模块被配置成使得电流基于第一和第二输入电压和参考电压的共模电压被转向从当前转向模块或当前转向模块,以将 运算放大器的共模输出电压。

    Blocker performance in a radio receiver
    85.
    发明授权
    Blocker performance in a radio receiver 有权
    无线电接收机中的阻塞器性能

    公开(公告)号:US07826565B2

    公开(公告)日:2010-11-02

    申请号:US12464156

    申请日:2009-05-12

    CPC classification number: H03H11/1291

    Abstract: A multiple stage band pass filter of a Radio Frequency (RF) Integrated Circuit is provided with a low pass mixer output filter coupled to receive a down sampled analog information signal, a buffer coupled to an output of the low pass mixer output filter, a low pass buffer output filter coupled to an output of the buffer and a plurality of band pass filters coupled to an output of the low pass buffer output filter.

    Abstract translation: 射频(RF)集成电路的多级带通滤波器被提供有低通混频器输出滤波器,其被耦合以接收下采样的模拟信息信号,耦合到低通混频器输出滤波器的输出的缓冲器,低 耦合到缓冲器的输出的多通道缓冲器输出滤波器以及耦合到低通缓冲器输出滤波器的输出的多个带通滤波器。

    Multi-mode reconstruction filter
    86.
    发明授权
    Multi-mode reconstruction filter 有权
    多模式重建滤波器

    公开(公告)号:US07782127B2

    公开(公告)日:2010-08-24

    申请号:US12020132

    申请日:2008-01-25

    CPC classification number: H03H11/0466

    Abstract: A circuit (e.g., a reconstruction filtering circuit) may include a single operational amplifier (op-amp) that is arranged to receive a voltage input and that is arranged to have a biasing of constant gmR, a first device capacitor that is operatively coupled to an output of the single op-amp, a first resistor that is operatively coupled to the first device capacitor, a second device capacitor that is operatively coupled to the first resistor, and a mirror device that is operatively coupled to the second device capacitor, where the mirror device is arranged to provide a feedback loop as a feedback input to the single op-amp and that is arranged to provide a current output.

    Abstract translation: 电路(例如,重构滤波电路)可以包括单个运算放大器(运算放大器),其被布置为接收电压输入并且被布置为具有恒定的gmR的偏置,第一器件电容器可操作地耦合到 单个运算放大器的输出,可操作地耦合到第一器件电容器的第一电阻器,可操作地耦合到第一电阻器的第二器件电容器,以及可操作地耦合到第二器件电容器的反射镜器件,其中 反射镜装置被布置成提供作为对单个运算放大器的反馈输入的反馈回路,并且被布置成提供电流输出。

    Adaptive radio transceiver with a local oscillator
    87.
    发明授权
    Adaptive radio transceiver with a local oscillator 有权
    具有本地振荡器的自适应无线电收发器

    公开(公告)号:US07720444B2

    公开(公告)日:2010-05-18

    申请号:US11340038

    申请日:2006-01-26

    Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

    Abstract translation: 在说明书和附图中描述和示出的本发明的示例性实施例是具有接收器,发射器,本地振荡器(LO)发生器,控制器和自检单元的收发器。 所有这些组件都可以封装以集成到单个IC中,其中包括过滤器和电感器等组件。 用于接收机,发射机和LO发生器的自适应编程和校准的控制器。 自检单元产生用于确定接收机,发射机和LO发生器的增益,频率特性,选择性,本底噪声和失真特性。 要强调的是,该摘要被提供以符合要求摘要的规则,这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。

    RF RECEIVER WITH OSCILLATION BASED BLOCKER
    88.
    发明申请
    RF RECEIVER WITH OSCILLATION BASED BLOCKER 有权
    RF接收器与基于振荡的阻塞器

    公开(公告)号:US20100035573A1

    公开(公告)日:2010-02-11

    申请号:US12362894

    申请日:2009-01-30

    CPC classification number: H04B1/525

    Abstract: A radio frequency (RF) receiver includes an amplifier stage, a blocking module, and a down conversion module. The amplifier stage amplifies an inbound RF signal (includes a desired component and a blocking component) to produce an amplified inbound RF signal. The blocking module generates an oscillation corresponding to a frequency of the blocking component and filters the amplified inbound RF signal based on the oscillation to substantially attenuate the blocking component and to pass, substantially unattenuated, the desired component. The down conversion module converts the desired RF signal component into a baseband or near baseband inbound signal.

    Abstract translation: 射频(RF)接收机包括放大器级,阻塞模块和下变频模块。 放大器级放大入站RF信号(包括期望的分量和阻塞分量)以产生放大的入站RF信号。 阻塞模块产生对应于阻挡分量的频率的振荡,并且基于振荡对放大的入站RF信号进行滤波,以基本上衰减阻塞分量并使基本上未衰减所需的分量。 下变频模块将期望的RF信号分量转换为基带或近基带入站信号。

    Small-step, switchable capacitor
    89.
    发明授权
    Small-step, switchable capacitor 有权
    小型可切换电容器

    公开(公告)号:US07566994B2

    公开(公告)日:2009-07-28

    申请号:US11343845

    申请日:2006-01-31

    CPC classification number: H02M3/06 H02M2007/4818 Y02B70/1441 Y10T307/76

    Abstract: According to an example embodiment, an apparatus is provided that produces a small-step switchable capacitor, which can have steps that are smaller in value than the smallest capacitor used in the system. In one embodiment, an input signal is connected to a switchable capacitor system that includes at least one and/or a plurality of small-step, switchable capacitors. In an example embodiment, a capacitor system may be provided that includes a first capacitance block coupled in series with a second capacitance block. In an example embodiment, the second capacitance block may include one or more switchable capacitors to provide a step in capacitance for the capacitor system between a first setting and a second setting using the one or more switchable capacitors. Also, in an example embodiment, the step in capacitance of the capacitor system may be determined based, at least in part, on a ratio of the capacitance of the second capacitance block to the capacitance of the first capacitance block.

    Abstract translation: 根据示例性实施例,提供了一种产生小步骤可切换电容器的装置,其可以具有比系统中使用的最小电容器更小的值的步骤。 在一个实施例中,输入信号连接到包括至少一个和/或多个小步骤可切换电容器的可切换电容器系统。 在示例性实施例中,可以提供一种电容器系统,其包括与第二电容块串联耦合的第一电容块。 在示例实施例中,第二电容块可以包括一个或多个可切换电容器,以使用一个或多个可切换电容器在第一设置和第二设置之间为电容器系统提供电容的步长。 而且,在示例性实施例中,可以至少部分地基于第二电容块的电容与第一电容块的电容的比率来确定电容器系统的电容的步长。

    METHOD AND SYSTEM FOR A SYNTHESIZER/LOCAL OSCILLATOR GENERATOR (LOGEN) ARCHITECTURE FOR A QUAD-BAND GSM/GPRS RADIO
    90.
    发明申请
    METHOD AND SYSTEM FOR A SYNTHESIZER/LOCAL OSCILLATOR GENERATOR (LOGEN) ARCHITECTURE FOR A QUAD-BAND GSM/GPRS RADIO 有权
    用于三级GSM / GPRS无线电的合成器/本地振荡器发生器(LOGEN)架构的方法和系统

    公开(公告)号:US20090181631A1

    公开(公告)日:2009-07-16

    申请号:US12405949

    申请日:2009-03-17

    CPC classification number: H04B1/406

    Abstract: A method for processing signals is disclosed and may include performing using one or more circuits in a multiband radio, functions including receiving an input signal from an oscillator that generates signals for each of a plurality of bands handled by the multiband radio. The received input signal may be divided. A feedback loop reference signal may be generated from the input signal. A coarse calibration signal and/or a fine calibration signal may be generated from the generated feedback loop reference signal. The oscillator may be calibrated utilizing the coarse calibration signal and/or the fine calibration signal. The input signal generated by the oscillator may be between about 3.4 GHz and 4 GHz. The receive input signal may be buffered. The generated feedback loop reference signal may also be buffered.

    Abstract translation: 公开了一种用于处理信号的方法,并且可以包括使用多频无线电中的一个或多个电路来执行功能,其功能包括从由多频带无线电处理的多个频带中的每个频带生成信号的振荡器接收输入信号。 所接收的输入信号可以被划分。 可以从输入信号产生反馈环路参考信号。 可以从产生的反馈回路参考信号产生粗略校准信号和/或精细校准信号。 可以使用粗校准信号和/或精细校准信号校准振荡器。 由振荡器产生的输入信号可以在约3.4GHz和4GHz之间。 可以缓冲接收输入信号。 产生的反馈回路参考信号也可以被缓冲。

Patent Agency Ranking