公开(公告)号：US09948238B2

公开(公告)日：2018-04-17

申请号：US15246917

申请日：2016-08-25

申请人： Sumitomo Electric Industries, Ltd.

发明人： Osamu Anegawa

IPC分类号： H03D7/14

CPC分类号： H03D7/1441 ,  H03D7/1466 ,  H03D7/1475 ,  H03D2200/0043

摘要： A harmonic mixer that suppresses the degradation of the conversion efficiency is disclosed. That harmonic mixer includes an input transmission line, an output transmission line, and two transistors connected in parallel between the input transmission line and the output transmission line. Two transistors are complementarily driven by a local signal LO and generate an output signal RF with frequencies of 2×fLO±fIF, where fLO and fIF are frequencies of a local signal LO and an intermediate signal IF.

公开(公告)号：US09350591B2

公开(公告)日：2016-05-24

申请号：US14639296

申请日：2015-03-05

申请人： PARKERVISION, INC.

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

IPC分类号： H03C1/62 ,  H03D7/00 ,  H04B1/00 ,  H04B1/16 ,  H04B1/28 ,  H04B7/12 ,  H04L25/08 ,  H04L27/00 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/38 ,  H04L27/148 ,  H04L27/156 ,  H03D7/14 ,  H04L27/26

CPC分类号： 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

摘要： Methods for down converting a modulated carrier signal to a demodulated baseband signal are described herein. The method requires that a first portion of energy is transferred from the modulated carrier signal, and stored at a first storage device when a first switch is on. At least some of the energy stored in the first storage device is discharged when the first switch is off. The method further comprises transferring a second portion of energy from the modulated carrier signal, storing at a second storage device the second portion of transferred energy when a second switch is on, and discharging at least some of the energy stored in the second storage device when the second switch is off. A down-converted in-phase baseband signal portion is generated from the energy accumulated in the first storage device while both the charging and the discharging occurs, and a down-converted inverted in-phase baseband signal portion is generated from the energy accumulated in the second storage device while both the charging and the discharging occurs, and the two portions are combined with a first differential amplifier circuit to form a down-converted differential in-phase baseband signal.

摘要翻译： 这里描述了将调制载波信号下变频为解调的基带信号的方法。 该方法要求第一部分能量从调制的载波信号传送，并且当第一开关接通时存储在第一存储装置。 当第一开关断开时，存储在第一存储装置中的至少一些能量被放电。 该方法还包括从调制的载波信号传送能量的第二部分，当第二开关接通时，在第二存储装置处存储传输能量的第二部分，以及当存储在第二存储装置中的至少一些能量时， 第二个开关关闭。 在发生充电和放电的同时，从在第一存储装置中累积的能量产生下变频的同相基带信号部分，并且从累积在第一存储装置中的能量产生下变频的反相同相基带信号部分 第二存储装置同时发生充电和放电，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。

公开(公告)号：US09246737B2

公开(公告)日：2016-01-26

申请号：US14639366

申请日：2015-03-05

申请人： PARKERVISION, INC.

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

IPC分类号： 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分类号： 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

摘要： 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.

摘要翻译： 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。

公开(公告)号：US09209750B2

公开(公告)日：2015-12-08

申请号：US14396150

申请日：2013-12-25

申请人： PANASONIC CORPORATION

发明人： Masahiro Kumagawa ,  Yuusuke Yamaoka

IPC分类号： G06F7/44 ,  G06G7/14 ,  H03D7/14 ,  H03D7/16 ,  H03D7/12

CPC分类号： H03D7/1475 ,  H03D7/125 ,  H03D7/1441 ,  H03D7/165 ,  H03D2200/0074 ,  H03D2200/0086

摘要： A harmonic rejection mixer is disclosed that is capable of supporting wideband reception without any increase in circuit area. In this apparatus, transistors convert an RF signal to currents. Transistors perform frequency conversion based on the currents from the transistors and local oscillation signals. Transistors distribute the currents from the transistors to all transistors or some transistors based on a predetermined ratio. A load adds up the currents from the transistors and converts the resultant current to a voltage.

摘要翻译： 公开了能够支持宽带接收而不增加电路面积的谐波抑制混频器。 在该装置中，晶体管将RF信号转换为电流。 晶体管基于来自晶体管的电流和本地振荡信号执行变频。 晶体管基于预定的比例将电流从晶体管分配到所有晶体管或一些晶体管。 负载将来自晶体管的电流相加，并将所得电流转换成电压。

公开(公告)号：US20150207499A1

公开(公告)日：2015-07-23

申请号：US14273725

申请日：2014-05-09

申请人： NATIONAL SUN YAT-SEN UNIVERSITY

发明人： Tzyy-Sheng Horng ,  Rong-Fu Ye ,  Jian-Ming Wu

IPC分类号： H03K5/04 ,  H03H11/32 ,  H03H11/04 ,  H03K5/02

CPC分类号： H03K5/04 ,  H03B19/14 ,  H03D3/02 ,  H03D7/1475 ,  H03F1/223 ,  H03F3/193 ,  H03F3/211 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2200/411 ,  H03F2203/45394 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03H11/32 ,  H03K5/02

摘要： A frequency shift-keying reader circuit includes a band-pass filter, a low noise amplifier, a first balun, an injection-lock divide-by-2 frequency divider, a sub-harmonic mixer and a low-pass filter. The band-pass filter performs a filtering procedure to a radio frequency signal, wherein the filtered radio-frequency signal is received by the low noise amplifier to provide an injection signal, and the injection signal is received by the first balun to generate a first differential signal and a second differential signal. The injection signal is received by the injection-lock divide-by-2 frequency divider to provide a first oscillation signal and a second oscillation signal, wherein the first differential signal, the second differential signal, the first oscillation signal and the second oscillation signal are received by the sub-harmonic mixer for performing a mixing procedure and thereafter generating an output signal, the low-pass filter performs a filtering procedure to the output signal.

摘要翻译： 频移键控读取器电路包括带通滤波器，低噪声放大器，第一平衡 - 不平衡变换器，注入锁分频二分频器，副谐波混频器和低通滤波器。 带通滤波器对射频信号执行滤波处理，其中由低噪声放大器接收经滤波的射频信号以提供注入信号，并且注入信号由第一平衡 - 不平衡变换器接收以产生第一差分 信号和第二差分信号。 注入信号由注入锁分频除频器接收以提供第一振荡信号和第二振荡信号，其中第一差分信号，第二差分信号，第一振荡信号和第二振荡信号是 由子谐波混频器接收用于执行混频过程，然后产生输出信号，低通滤波器对输出信号执行滤波过程。

公开(公告)号：US20130257508A1

公开(公告)日：2013-10-03

申请号：US13653305

申请日：2012-10-16

申请人： MEDIATEK SINGAPORE PTE. LTD.

发明人： Ankush GOEL ,  Neric FONG

IPC分类号： H03B1/04

CPC分类号： H03D7/1475 ,  H03B1/04 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0086

摘要： A mixer circuit is disclosed. The mixer circuit comprises a plurality of mixer elements, wherein there are non-overlapping clock signals provided to the plurality of mixer elements which have a duty cycle of 33 ⅓ percent. Outputs signals of the mixer elements do not contain third order harmonic content of the non-overlapping clock signals. The third-order harmonic of the mixer is eliminated by using mixer which uses voltage sampling on non-overlapping clocks and thereby achieves high linearity. The mixer circuit is further expanded to remove the 1-0 image and even order harmonics.

摘要翻译： 公开了一种混频器电路。 混频器电路包括多个混频器元件，其中提供给具有33 1/3％占空比的多个混频器元件的非重叠时钟信号。 混频器元件的输出信号不包含非重叠时钟信号的三阶谐波含量。 通过使用在非重叠时钟上采用电压采样的混频器来消除混频器的三阶谐波，从而实现高线性度。 混频器电路进一步扩展以去除1-0图像，甚至排序谐波。

公开(公告)号：US08543078B2

公开(公告)日：2013-09-24

申请号：US13076871

申请日：2011-03-31

申请人： Osamu Anegawa ,  Osamu Baba ,  Miki Kubota ,  Tsuneo Tokumitsu

发明人： Osamu Anegawa ,  Osamu Baba ,  Miki Kubota ,  Tsuneo Tokumitsu

IPC分类号： H04B1/40

CPC分类号： H03D7/1441 ,  H03C2200/0033 ,  H03D7/1433 ,  H03D7/1466 ,  H03D7/1475 ,  H03D7/1483 ,  H03D2200/0023

摘要： A circuit includes: a first line to which input and output signal terminals are connected; a first transistor having a first terminal connected to the first line, a second terminal connected to a ground potential, and a control terminal supplied with a first oscillation signal, the first transistor outputting the first signal and its harmonic component; a second transistor having a first terminal connected to the first line, a second terminal connected to the ground potential, and a control terminal supplied with a second oscillation signal, the second transistor outputting the second signal and its harmonic component; a first harmonic generator connected to the control terminal of the first transistor and generates a harmonic component including the harmonic component by the first transistor; and a second harmonic generator connected to the control terminal of the second transistor and generates a harmonic component including the harmonic component by the second transistor.

摘要翻译： 电路包括：连接输入和输出信号端子的第一行; 第一晶体管，其具有连接到第一线的第一端子，连接到地电位的第二端子和被提供有第一振荡信号的控制端子，所述第一晶体管输出第一信号及其谐波分量; 第二晶体管，其具有连接到第一线的第一端子，连接到地电位的第二端子和被提供有第二振荡信号的控制端子，所述第二晶体管输出第二信号及其谐波分量; 连接到第一晶体管的控制端的一次谐波发生器，并产生包括第一晶体管的谐波分量的谐波分量; 以及连接到第二晶体管的控制端子的二次谐波发生器，并且通过第二晶体管产生包括谐波分量的谐波分量。

公开(公告)号：US20130101064A1

公开(公告)日：2013-04-25

申请号：US13549213

申请日：2012-07-13

申请人： David F. SORRELLS ,  Michael J. BULTMAN ,  Robert W. COOK ,  Richard C. LOOKE ,  Charley D. MOSES, JR. ,  Gregory S. RAWLINS ,  Michael W. RAWLINS

发明人： David F. SORRELLS ,  Michael J. BULTMAN ,  Robert W. COOK ,  Richard C. LOOKE ,  Charley D. MOSES, JR. ,  Gregory S. RAWLINS ,  Michael W. RAWLINS

IPC分类号： H04L27/00

CPC分类号： 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

摘要： Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a basehand information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

摘要翻译： 本文描述了用于电磁（EM）信号的下变频的方法，系统和装置，以及其组合和子组合。 简而言之，在实施例中，本发明通过接收EM信号并在载波信号的大约半个周期（1/2，1½，2½等）上递归地操作）来操作。 可以以载波信号的次谐波速率执行递归运算。 本发明积累了递归运算的结果，并使用累加结果形成降频转换信号。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一个实施例中，EM信号被下变频为基准信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。

公开(公告)号：US20120220254A1

公开(公告)日：2012-08-30

申请号：US13428816

申请日：2012-03-23

申请人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, JR.

发明人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, JR.

IPC分类号： H04B1/16 ,  H04B1/26

CPC分类号： 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

摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a emodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

摘要翻译： 这里描述了通过使EM信号进行混叠来降低电磁（EM）信号的转换的方法，系统和装置。 这样的方法，系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠，以降低EM信号的转换。 如本文所使用的，术语混叠是指通过以混叠速率对EM信号进行欠采样，并以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一个实施例中，EM信号被下变频为被仿真的基带信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。

公开(公告)号：US08180313B2

公开(公告)日：2012-05-15

申请号：US12189066

申请日：2008-08-08

申请人： Bong-Su Kim ,  Woo Jin Byun ,  Kwang Seon Kim ,  Min Soo Kang ,  Tae Jin Chung ,  Myung Sun Song

发明人： Bong-Su Kim ,  Woo Jin Byun ,  Kwang Seon Kim ,  Min Soo Kang ,  Tae Jin Chung ,  Myung Sun Song

IPC分类号： H04B1/26 ,  H04B1/18

CPC分类号： H03D7/1441 ,  H03D7/1475 ,  H03D2200/0023

摘要： Provided are a mixer and a transceiver having the mixer. The mixer includes: an local oscillation (LO) differential signal generator converting an input LO signal into a differential signal; and a mixing unit receiving the LO differential signal as a first input and a first signal having a first frequency as a second input and performing differential amplification on the LO differential signal and the first signal to output a second signal having a second frequency.

摘要翻译： 提供了具有混频器的混频器和收发器。 混频器包括：本地振荡（LO）差分信号发生器，将输入LO信号转换成差分信号; 以及混合单元，其接收作为第一输入的LO差分信号和具有第一频率作为第二输入的第一信号，并对所述LO差分信号和所述第一信号执行差分放大，以输出具有第二频率的第二信号。