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    Method and system for down-converting an electromagnetic signal
    41.
    发明授权
    Method and system for down-converting an electromagnetic signal 有权
    降低电磁信号转换的方法和系统

    公开(公告)号：US09246737B2

    公开(公告)日：2016-01-26

    申请号：US14639366

    申请日：2015-03-05

    Applicant: PARKERVISION, INC.

    Inventor： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses ,  Gregory S. Rawlins ,  Michael W. Rawlins

    IPC: H04L27/38 ,  H03C1/62 ,  H03D7/00 ,  H04B1/00 ,  H04B1/28 ,  H04B7/12 ,  H04L27/00 ,  H04L27/12 ,  H04L27/14 ,  H04L27/148 ,  H04L27/156 ,  H03D7/14 ,  H04B1/16 ,  H04L25/08 ,  H04L27/06

    CPC classification number: H04L27/3881 ,  H03C1/62 ,  H03D7/00 ,  H03D7/1441 ,  H03D7/1475 ,  H04B1/0025 ,  H04B1/16 ,  H04B1/28 ,  H04B7/12 ,  H04L25/08 ,  H04L27/00 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/148 ,  H04L27/156 ,  H04L27/2672

    Abstract: Methods, systems, and apparatus for down converting a modulated carrier signal to a demodulated baseband signal are described herein. A first switch is controlled with a first control signal which comprises a first sampling aperture with a specified frequency, wherein the first switch is on during the first sampling aperture and wherein the first switch is off outside the first sampling aperture. A second switch is controlled with a second control signal which comprises a second sampling aperture with a specified frequency, wherein the second switch is on during the second sampling aperture and wherein the second switch is off outside the second sampling aperture. The first and second control signals each control a charging and discharging cycle of a respective energy storage element so that for each switch a portion of energy is transferred to the respective energy storage element when the respective switch is on during the charging cycle, and a portion of previously transferred energy is discharged during the discharging cycle for each respective switch when the switch is off. A down-converted in-phase baseband signal portion is derived from energy accumulated at said first energy storage element during both the charging and the discharging cycles for the first energy storage element and a down-converted inverted in-phase baseband signal portion is derived from energy accumulated at said second energy storage element during both the charging and the discharging cycles for the second energy storage element, and the two portions are combined with a first differential amplifier circuit to form a down-converted differential in-phase baseband signal.

    Abstract translation: 这里描述了用于将调制载波信号下变频到解调的基带信号的方法，系统和装置。 第一开关由第一控制信号控制，第一控制信号包括具有指定频率的第一采样孔，其中第一开关在第一采样孔期间接通，并且其中第一开关在第一采样孔外部关闭。 用第二控制信号控制第二开关，第二控制信号包括具有指定频率的第二采样孔，其中第二开关在第二采样孔期间接通，并且其中第二开关在第二采样孔外部断开。 第一和第二控制信号各自控制各自能量存储元件的充电和放电循环，使得对于每个开关，当相应的开关在充电循环期间接通时，一部分能量被传递到相应的能量存储元件，并且一部分 当开关断开时，对于各个开关，在放电周期期间，先前传输的能量被放电。 在第一能量存储元件的充电和放电周期期间，从在第一能量存储元件处累积的能量导出下变频的同相基带信号部分，并且从下转换的反相同步基带信号部分 在第二能量存储元件的充电和放电循环期间，在所述第二能量存储元件处累积的能量，并且两个部分与第一差分放大器电路组合以形成下变频的差分同相基带信号。

    RF power transmission, modulation, and amplification embodiments
    43.
    发明授权
    RF power transmission, modulation, and amplification embodiments 有权
    RF功率传输，调制和放大实施例

    公开(公告)号：US09166528B2

    公开(公告)日：2015-10-20

    申请号：US14147742

    申请日：2014-01-06

    Applicant: ParkerVision, Inc.

    Inventor： David F. Sorrells ,  Gregory S. Rawlins ,  Michael W. Rawlins

    IPC: H04B1/04 ,  H03F1/02 ,  H03F1/32 ,  H03F3/21 ,  H03F3/24 ,  H03F3/38 ,  H03G3/30

    CPC classification number: H03F1/02 ,  H03F1/0205 ,  H03F1/0211 ,  H03F1/0261 ,  H03F1/0294 ,  H03F1/32 ,  H03F3/211 ,  H03F3/24 ,  H03F3/38 ,  H03F2200/102 ,  H03F2201/3206 ,  H03G3/3042 ,  H04B1/04

    Abstract: Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.

    Abstract translation: 本文公开了用于矢量组合功率放大的方法和系统。 在一个实施例中，多个信号被单独放大，然后相加以形成期望的时变复包络信号。 控制一个或多个信号的相位和/或频率特性以提供期望的时变复包络信号的期望的相位，频率和/或幅度特性。 在另一个实施例中，时变复包络信号被分解为多个恒定包络分量信号。 构成信号被均等地或基本相等地放大，然后相加以构建原始时变包络信号的放大版本。 实施例还执行上变频。

    RF Power Transmission, Modulation, and Amplification Embodiments
    45.
    发明申请
    RF Power Transmission, Modulation, and Amplification Embodiments 有权
    RF功率传输，调制和放大实施例

    公开(公告)号：US20140187184A1

    公开(公告)日：2014-07-03

    申请号：US14147742

    申请日：2014-01-06

    Applicant: ParkerVision, Inc.

    Inventor： David F. SORRELLS ,  Gregory S. Rawlins ,  Michael W. Rawlins

    IPC: H03F1/02 ,  H04B1/04

    CPC classification number: H03F1/02 ,  H03F1/0205 ,  H03F1/0211 ,  H03F1/0261 ,  H03F1/0294 ,  H03F1/32 ,  H03F3/211 ,  H03F3/24 ,  H03F3/38 ,  H03F2200/102 ,  H03F2201/3206 ,  H03G3/3042 ,  H04B1/04

    Abstract: Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.

    Abstract translation: 本文公开了用于矢量组合功率放大的方法和系统。 在一个实施例中，多个信号被单独放大，然后相加以形成期望的时变复包络信号。 控制一个或多个信号的相位和/或频率特性以提供期望的时变复包络信号的期望的相位，频率和/或幅度特性。 在另一个实施例中，时变复包络信号被分解为多个恒定包络分量信号。 构成信号被均等地或基本相等地放大，然后相加以构建原始时变包络信号的放大版本。 实施例还执行上变频。

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