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    Adaptive DC offset cancellation for direct conversion RF receivers
    22.
    发明授权
    Adaptive DC offset cancellation for direct conversion RF receivers 有权
    用于直接转换射频接收机的自适应直流偏移消除

    公开(公告)号：US09231637B2

    公开(公告)日：2016-01-05

    申请号：US14085236

    申请日：2013-11-20

    Applicant: Aviacomm Inc.

    Inventor： Tao Li ,  Hans Wang ,  Binglei Zhang ,  Shih Hsiung Mo

    IPC: H04L25/10 ,  H04B1/30

    CPC classification number: H04B1/30 ,  H04B2001/305

    Abstract: One embodiment of the present invention provides a system for performing DC offset cancellation for a wireless receiver that includes one or more amplification stages between a demodulator and a baseband digital signal processor (DSP). During operation, the system calibrates values of static DC offset associated with a plurality of gain settings for at least one amplification stage, stores the calibrated DC offset values in a lookup table, receives a current gain setting for the amplification stage, maps a DC offset value from the lookup table based on the current gain setting, and cancels static DC offset for the amplification stage using the mapped DC offset value.

    Abstract translation: 本发明的一个实施例提供了一种用于对包括解调器和基带数字信号处理器（DSP）之间的一个或多个放大级的无线接收机执行DC偏移消除的系统。 在操作期间，系统校准与至少一个放大级的多个增益设置相关联的静态DC偏移的值，将校准的DC偏移值存储在查找表中，接收用于放大级的当前增益设置，映射DC偏移 基于当前增益设置的查找表的值，并且使用映射的DC偏移值来取消放大级的静态DC偏移。

    Smart AGC for wideband multi-standard RFIC
    23.
    发明授权
    Smart AGC for wideband multi-standard RFIC 有权
    智能AGC用于宽带多标准RFIC

    公开(公告)号：US08977314B2

    公开(公告)日：2015-03-10

    申请号：US13620049

    申请日：2012-09-14

    Applicant: Tao Li ,  Shih Hsiung Mo ,  Hans Wang ,  Binglei Zhang

    Inventor： Tao Li ,  Shih Hsiung Mo ,  Hans Wang ,  Binglei Zhang

    IPC: H04M1/00

    CPC classification number: H04W52/52 ,  H03G3/3042 ,  H03G3/3068 ,  H04W52/226

    Abstract: One embodiment of the present invention provides an automatic gain control (AGC) module for a wireless communication system that includes a plurality of amplifiers. The AGC module includes a receiving mechanism configured to receive an input that indicates a total amount of gain adjustment; a collecting mechanism configured to collect a number of parameters associated with the amplifiers; a determining mechanism configured to determine a desired performance requirement; a gain-control engine configured to generate a gain profile for the amplifiers based on the collected parameters, the total amount of gain, and the desired performance requirement; and an output mechanism configured to output a plurality of control signals based on the generated gain profile, wherein a respective control signal independently controls gain of a corresponding amplifier, thereby enabling the wireless communication system to achieve the total amount of gain adjustment while meeting the desired performance requirement.

    Abstract translation: 本发明的一个实施例提供了一种用于包括多个放大器的无线通信系统的自动增益控制（AGC）模块。 AGC模块包括：接收机构，被配置为接收指示增益调整的总量的输入; 收集机构，被配置为收集与所述放大器相关联的多个参数; 确定机构，被配置为确定期望的性能要求; 增益控制引擎，被配置为基于收集的参数，增益总量和期望的性能要求来生成放大器的增益曲线; 以及输出机构，被配置为基于所生成的增益分布来输出多个控制信号，其中相应的控制信号独立地控制对应的放大器的增益，从而使无线通信系统能够实现增益调整的总量，同时满足期望的 性能要求。

    SIMPLE AND FLEXIBLE INTERFACE ARCHITECTURE FOR CONTROLLING RF FRONT-END COMPONENTS
    24.
    发明申请
    SIMPLE AND FLEXIBLE INTERFACE ARCHITECTURE FOR CONTROLLING RF FRONT-END COMPONENTS 审中-公开
    用于控制RF前端组件的简单和灵活的接口架构

    公开(公告)号：US20150055720A1

    公开(公告)日：2015-02-26

    申请号：US13972766

    申请日：2013-08-21

    Applicant: Aviacomm Inc.

    Inventor： Shao C. Lin ,  Chung-Hsing Chang ,  Shih Hsiung Mo

    IPC: H04L27/00

    CPC classification number: G06F13/128

    Abstract: One embodiment of the present invention provides a system for controlling at least one RF front-end component. During operation, the system receives, at a programmable logic chip from a baseband chip, a command; identifies the RF front-end component based on an address indicated by the command; and sends a control signal included in the command to the identified RF front-end component via the second interface. The programmable logic chip is coupled to the baseband chip via a first interface, and is coupled to the at least one RF front-end component via a second interface.

    Abstract translation: 本发明的一个实施例提供一种用于控制至少一个RF前端部件的系统。 在操作期间，系统在基带芯片的可编程逻辑芯片处接收命令; 基于命令指示的地址识别射频前端组件; 并且通过第二接口将包含在命令中的控制信号发送到所识别的RF前端组件。 可编程逻辑芯片经由第一接口耦合到基带芯片，并且经由第二接口耦合到至少一个RF前端部件。

    Low-power and noise-cancelling wideband receiver front-end
    25.
    发明授权
    Low-power and noise-cancelling wideband receiver front-end 有权
    低功耗和噪声消除宽带接收机前端

    公开(公告)号：US08489051B2

    公开(公告)日：2013-07-16

    申请号：US13300430

    申请日：2011-11-18

    Applicant: Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang ,  An Hue Ta

    Inventor： Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang ,  An Hue Ta

    IPC: H04B1/18

    CPC classification number: H04B1/18 ,  H04B1/006

    Abstract: One embodiment of the present invention provides a receiver for wireless communication. The receiver includes a group of band-pass filters (BPFs), a wideband amplifier coupled to the BPFs, and a tunable demodulator coupled to the wideband amplifier. A particular BPF is configured to filter RF signals at a particular frequency band. The wideband amplifier is configured to amplify the filtered RF signals. The tunable demodulator is configured to demodulate the amplified RF signals.

    Abstract translation: 本发明的一个实施例提供了一种用于无线通信的接收机。 接收机包括一组带通滤波器（BPF），耦合到BPF的宽带放大器和耦合到宽带放大器的可调谐解调器。 特定的BPF被配置为对特定频带的RF信号进行滤波。 宽带放大器被配置为放大经滤波的RF信号。 可调谐解调器被配置为解调放大的RF信号。

    WIDEBAND RF FRONT-END
    26.
    发明申请
    WIDEBAND RF FRONT-END 审中-公开
    宽带RF前端

    公开(公告)号：US20130156074A1

    公开(公告)日：2013-06-20

    申请号：US13325340

    申请日：2011-12-14

    Applicant: Hans Wang ,  Binglei Zhang ,  Tao Li ,  Shih Hsiung Mo

    Inventor： Hans Wang ,  Binglei Zhang ,  Tao Li ,  Shih Hsiung Mo

    IPC: H04B1/38 ,  H04L27/04 ,  H04L27/06

    CPC classification number: H03J5/244 ,  H04B1/1027 ,  H04B1/18

    Abstract: One embodiment of the present invention includes a transceiver for wireless communication. The transceiver includes an antenna, a transmitter, which comprises a tunable matching network and a modulator, and a receiver, which comprises a programmable band-pass filter (BPF) and a demodulator.

    Abstract translation: 本发明的一个实施例包括用于无线通信的收发器。 收发器包括天线，包括可调匹配网络和调制器的发射机，以及包括可编程带通滤波器（BPF）和解调器的接收机。

    RECONFIGURABLE WIDEBAND RECEIVER
    28.
    发明申请
    RECONFIGURABLE WIDEBAND RECEIVER 有权
    可重新配置的宽带接收器

    公开(公告)号：US20130051500A1

    公开(公告)日：2013-02-28

    申请号：US13363083

    申请日：2012-01-31

    Applicant: Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang

    Inventor： Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang

    IPC: H04L27/06

    CPC classification number: H04B1/0053 ,  H03D7/165 ,  H03D2200/0017 ,  H03D2200/005 ,  H04L27/38

    Abstract: One embodiment of the present invention provides a receiver for wireless communication. The receiver includes a demodulator and at least one filtering mechanism coupled to the demodulator, and an analog-to-digital converter (ADC) coupled to the filtering mechanism. The filtering mechanism can be configured to function as a low-pass filter (LPF) or a band-pass filter (BPF), thereby enabling the receiver to function as a direct-conversion receiver or a low-intermediate frequency (low-IF) receiver.

    Abstract translation: 本发明的一个实施例提供了一种用于无线通信的接收机。 接收机包括解调器和耦合到解调器的至少一个滤波机构以及耦合到滤波机构的模数转换器（ADC）。 滤波机构可以配置为用作低通滤波器（LPF）或带通滤波器（BPF），从而使接收机能够用作直接转换接收机或低中频（低中频） 接收器。

    COST EFFECTIVE MULTIBAND RF FRONT-END ARCHITECTURE FOR MOBILE APPLICATIONS
    30.
    发明申请
    COST EFFECTIVE MULTIBAND RF FRONT-END ARCHITECTURE FOR MOBILE APPLICATIONS 审中-公开

    公开(公告)号：US20160183128A1

    公开(公告)日：2016-06-23

    申请号：US15055101

    申请日：2016-02-26

    Applicant: Aviacomm Inc.

    Inventor： Shao C. Lin ,  Shih Hsiung Mo

    IPC: H04W28/10 ,  H04W72/04 ,  H04W40/08 ,  H04L5/14

    CPC classification number: H04W28/10 ,  H04B1/18 ,  H04L5/14 ,  H04W40/08 ,  H04W72/0426

    Abstract: One embodiment of the present invention provides an RF front-end system. The RF front-end system includes one or more RF front-end components and a programmable logic device, which has a baseband interface for coupling to a baseband digital signal processor (DSP), and a set of component interfaces for coupling to the one ore more RF front-end components. The programmable logic device is configured to: receive, from the baseband DSP via the baseband interface, a command which includes an address and a control signal; identify a component interface from the set of component interfaces based on the address; and send the control signal to the identified component interface, thereby enabling the baseband DSP to control a front-end component coupled to the programmable logic device via the identified component interface.

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