中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

25 records (took 0.104 seconds)

    RECEIVER SECOND ORDER INTERMODULATION CORRECTION SYSTEM AND METHOD
    1.
    发明申请
    RECEIVER SECOND ORDER INTERMODULATION CORRECTION SYSTEM AND METHOD 审中-公开
    接收器二阶互连校正系统及方法

    公开(公告)号：WO2009091892A2

    公开(公告)日：2009-07-23

    申请号：PCT/US2009/031108

    申请日：2009-01-15

    Applicant: AXIOM MICRODEVICES, INC. ,  MOLNAR, Alyosha ,  DAMGAARD, Morten ,  HATCHER, Geoff ,  WU, Kenneth, Chai-En

    Inventor： MOLNAR, Alyosha ,  DAMGAARD, Morten ,  HATCHER, Geoff ,  WU, Kenneth, Chai-En

    CPC classification number: H04B1/30 ,  H04B1/109

    Abstract: A system for correcting a second order intermodulation product in a direct conversion receiver is provided. The system includes a cross -covariance system receiving a data signal and a second order intermodulation estimate signal and generating a cross -covariance value. An auto -covariance system receives the second order intermodulation estimate signal and generates an auto covariance value. A buffer system stores a second order intermodulation product correction factor. A divider receives the cross -covariance value, the auto- covariance value and the second order intermodulation product correction factor and generates a running average second order intermodulation product correction factor.

    Abstract translation: 提供一种用于在直接转换接收机中校正二阶互调产物的系统。 该系统包括接收数据信号和二阶互调估计信号的交叉协方差系统，并产生协方差值。 自动协方差系统接收二阶互调估计信号并产生自协方差值。 缓冲系统存储二阶互调产物校正因子。 分频器接收协方差值，自协方差值和二阶互调乘积校正因子，并生成运行平均二阶互调乘积校正因子。

    RADIO FRONT END WITH RESONANT TRANSMIT/RECEIVE SWITCH
    2.
    发明申请
    RADIO FRONT END WITH RESONANT TRANSMIT/RECEIVE SWITCH 审中-公开
    无线电前端带有发射/接收开关

    公开(公告)号：WO2009009646A2

    公开(公告)日：2009-01-15

    申请号：PCT/US2008/069609

    申请日：2008-07-10

    Applicant: AXIOM MICRODEVICES, INC. ,  QIAO, Dongjaing ,  KEE, Scott, D. ,  AOKI, Ichiro ,  MCCLYMONT, Donald

    Inventor： QIAO, Dongjaing ,  KEE, Scott, D. ,  AOKI, Ichiro ,  MCCLYMONT, Donald

    CPC classification number: H04B1/44

    Abstract: A device having a radio front end is provided. The radio front end includes an inductor having a first end and a second end. A capacitor having a first end and a second end is connected to the second end of the inductor. An antenna is connected to the second end of the inductor and the second end of the capacitor. A first switch is connected to the first end of the inductor and the first end of the capacitor, wherein the inductor and capacitor form a resonant circuit when the first switch is closed. A second switch is connected to the resonant circuit, the second switch connecting the resonant circuit to ground through a low impedance when the first switch is closed. A third switch is connected to a transmit power amplifier connecting the transmit power amplifier to ground through a low impedance when the first switch is closed.

    Abstract translation: 提供具有无线电前端的设备。 无线电前端包括具有第一端和第二端的电感器。 具有第一端和第二端的电容器连接到电感器的第二端。 天线连接到电感器的第二端和电容器的第二端。 第一开关连接到电感器的第一端和电容器的第一端，其中当第一开关闭合时，电感器和电容器形成谐振电路。 第二开关连接到谐振电路，第二开关在第一开关闭合时通过低阻抗将谐振电路连接到地。 当第一开关闭合时，第三开关连接到通过低阻抗将发射功率放大器接地的发射功率放大器。

    PHASE DETECTOR
    3.
    发明申请
    PHASE DETECTOR 审中-公开
    相位检测器

    公开(公告)号：WO2008019288A3

    公开(公告)日：2008-05-02

    申请号：PCT/US2007075063

    申请日：2007-08-02

    Applicant: AXIOM MICRODEVICES INC ,  AOKI ICHIRO ,  KEE SCOTT D ,  QIAO DONGJIANG ,  MOLNAR ALYOSHA C

    Inventor： AOKI ICHIRO ,  KEE SCOTT D ,  QIAO DONGJIANG ,  MOLNAR ALYOSHA C

    IPC: H04L7/00

    CPC classification number: H03L7/0812 ,  H03L7/085 ,  H03L7/087

    Abstract: A phase detector includes a plurality of phase detectors located in a phase correction loop, each phase detector configured to receive as input a radio frequency (RF) input signal and an RF reference signal, each of the plurality of phase detectors also configured to provide a signal representing a different phase offset based on the phase difference between the RF input signal and the RF reference signal; and a switch configured to receive an output of each of the plurality of phase detectors and configured to select the output representing the phase offset, that is closest to a phase of an output of an amplifier.

    Abstract translation: 相位检测器包括位于相位校正环路中的多个相位检测器，每个相位检测器被配置为接收射频（RF）输入信号和RF参考信号作为输入，多个相位检测器中的每一个还被配置为提供 基于RF输入信号和RF参考信号之间的相位差表示不同的相位偏移的信号; 以及开关，其被配置为接收所述多个相位检测器中的每一个的输出并且被配置为选择最接近放大器的输出的相位的表示相位偏移的输出。

    DISTRIBUTED ACTIVE TRANSFORMER POWER CONTROL TECHNIQUES
    4.
    发明申请
    DISTRIBUTED ACTIVE TRANSFORMER POWER CONTROL TECHNIQUES 审中-公开

    公开(公告)号：WO2005098880A3

    公开(公告)日：2005-10-20

    申请号：PCT/US2005/010602

    申请日：2005-03-31

    Applicant: AXIOM MICRODEVICES, INC. ,  MAGOON, Rahul ,  KEE, Scott, D. ,  AOKI, Ichiro ,  CARR, Frank ,  WU, Hui ,  TWOMEY, Jerry ,  HAJIMIRI, Seyed-Ali

    Inventor： MAGOON, Rahul ,  KEE, Scott, D. ,  AOKI, Ichiro ,  CARR, Frank ,  WU, Hui ,  TWOMEY, Jerry ,  HAJIMIRI, Seyed-Ali

    IPC: H03F3/60

    Abstract: A distributed active transformer on a semiconducting substrate is provided (100). The distributed active transformer (100) includes an outer primary (104A, 104B, 104C, 104D) a secondary (105) disposed adjacent to the outer primary (104A, 104B, 104C, 104D), and an inner primary (102A, 102B, 102C, 102D) disposed adjacent to the outer primary (104A, 104B, 104C, 104D) and the secondary (105). A plurality of first three terminal devices (106A, 106B, 106C, 106D) is coupled to the outer primary (104A, 104B, 104C, 104D) at a plurality of locations. A plurality of second three terminal devices (108A, 108B, 108C, 108D) coupled to the inner primary (102A, 102B, 102C, 102D) at a plurality of locations, and each second three terminal device (108A, 108B, 108C, 108D) is disposed opposite from and coupled to one of the plurality of first three terminal devices (106A, 106B, 106C, 106D). A plurality of power control actuation circuits is also provided, where each power control actuation circuits (110A, 110B, 110C, 110D) is also provided, where each power control actuation circuit (110A, 110B, 110C, 110D) is coupled to one of the first three terminal devices (106A, 106B, 106C, 106D) and the second three terminal devices(108A, 108B, 108C, 108D).

    SYSTEM AND METHOD FOR LOW DELAY CORRECTIVE FEEDBACK POWER AMPLIFIER CONTROL
    7.
    发明申请
    SYSTEM AND METHOD FOR LOW DELAY CORRECTIVE FEEDBACK POWER AMPLIFIER CONTROL 审中-公开
    用于低延迟校正反馈功率放大器控制的系统和方法

    公开(公告)号：WO2008019286A2

    公开(公告)日：2008-02-14

    申请号：PCT/US2007/075057

    申请日：2007-08-02

    Applicant: AXIOM MICRODEVICES, INC. ,  MAGOON, Rahul ,  DAMGAARD, Morten ,  JOO, Roberto, Aparicio ,  KEE, Scott, D. ,  AOKI, Ichiro

    Inventor： MAGOON, Rahul ,  DAMGAARD, Morten ,  JOO, Roberto, Aparicio ,  KEE, Scott, D. ,  AOKI, Ichiro

    IPC: H03G3/00 ,  H04B1/40

    CPC classification number: H03G3/004 ,  H03F1/34 ,  H03F3/19 ,  H03F3/24 ,  H04B2001/0433

    Abstract: A system for controlling the power output of a power amplifier includes a power amplifier through which a transmit signal having an amplitude-modulated (AM) component and a phase-modulated (PM) component is passed and amplified, the power amplifier comprising a forward path, a feedback signal comprising a portion of the output of the power amplifier, a first control loop configured to receive the feedback signal and configured to apply an amplitude modulated (AM) signal to the power amplifier and configured to control the gain of the power amplifier, a second control loop configured to receive the feedback signal and configured to correct for offsets in the forward path and to linearize the first control loop; and a third control loop configured to receive the feedback signal and configured to control the phase of the PM component of the transmit signal.

    Abstract translation: 用于控制功率放大器的功率输出的系统包括功率放大器，具有幅度调制（AM）分量和相位调制（PM）分量的发射信号通过该功率放大器被传递并被放大 ，所述功率放大器包括正向路径，包括所述功率放大器的所述输出的一部分的反馈信号，第一控制环路，所述第一控制环路被配置为接收所述反馈信号并且被配置为将幅度调制（AM）信号应用于所述功率放大器并且被配置 控制所述功率放大器的增益;第二控制回路，其被配置为接收所述反馈信号并且被配置为校正所述前向路径中的偏移量并线性化所述第一控制回路; 以及第三控制回路，其被配置为接收反馈信号并且被配置为控制发送信号的PM分量的相位。

    RADIO FRONT END WITH RESONANT TRANSMIT/RECEIVE SWITCH
    10.
    发明申请
    RADIO FRONT END WITH RESONANT TRANSMIT/RECEIVE SWITCH 审中-公开
    无线电前端，配有发射/接收开关

    公开(公告)号：WO2009009646A3

    公开(公告)日：2011-03-17

    申请号：PCT/US2008069609

    申请日：2008-07-10

    Applicant: AXIOM MICRODEVICES INC ,  QIAO DONGJAING ,  KEE SCOTT D ,  AOKI ICHIRO ,  MCCLYMONT DONALD

    Inventor： QIAO DONGJAING ,  KEE SCOTT D ,  AOKI ICHIRO ,  MCCLYMONT DONALD

    IPC: H04B1/44

    CPC classification number: H04B1/44

    Abstract: A device having a radio front end is provided. The radio front end includes an inductor having a first end and a second end. A capacitor having a first end and a second end is connected to the second end of the inductor. An antenna is connected to the second end of the inductor and the second end of the capacitor. A first switch is connected to the first end of the inductor and the first end of the capacitor, wherein the inductor and capacitor form a resonant circuit when the first switch is closed. A second switch is connected to the resonant circuit, the second switch connecting the resonant circuit to ground through a low impedance when the first switch is closed. A third switch is connected to a transmit power amplifier connecting the transmit power amplifier to ground through a low impedance when the first switch is closed.

    Abstract translation: 提供具有无线电前端的设备。 无线电前端包括具有第一端和第二端的电感器。 具有第一端和第二端的电容器连接到电感器的第二端。 天线连接到电感器的第二端和电容器的第二端。 第一开关连接到电感器的第一端和电容器的第一端，其中当第一开关闭合时，电感器和电容器形成谐振电路。 第二开关连接到谐振电路，第二开关在第一开关闭合时通过低阻抗将谐振电路连接到地。 当第一开关闭合时，第三开关连接到通过低阻抗将发射功率放大器连接到地的发射功率放大器。

Patent Agency Ranking