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71. 发明授权

US07403758B2 Linearized and balanced mixer apparatus and signal mixing method 有权
标题翻译：线性化和平衡混频器设备和信号混合方法
公开(公告)号：US07403758B2
公开(公告)日：2008-07-22
申请号：US11243633
申请日：2005-10-04
申请人： Stephen J. Rector
发明人： Stephen J. Rector
IPC分类号： H04B1/26
CPC分类号： H03D7/145 , H03D7/1458 , H03D7/1491 , H03D2200/0043 , H03D2200/0084
摘要： Method and apparatus are provided for linearized balanced signal mixing. A signal mixing circuit (10) for translating a radio frequency (RF) signal is provided comprising an input amplifier (12), a mixer network (14), and an output buffer amplifier (18). The input amplifier (12) is configured to produce an amplified RF signal and cancel an input third-order intermodulation (IM3) distortion in the amplified RF signal with a cross-coupled feedback amplifier (13). The mixer network (14) is configured to produce an intermediate frequency (IF) signal based on the amplified RF signal and a local oscillator signal. The output amplifier (18) is configured to buffer the IF signal and cancel an output IM3 distortion in the IF signal with a cross-coupled feedback amplifier (19). The input amplifier (12) and cross-coupled feedback amplifier (13) also serve as a bias current source for the mixer network (14), thus lowering the supply voltage required for the mixing circuit (10).
摘要翻译：提供了线性化平衡信号混合的方法和装置。提供了用于转换射频（RF）信号的信号混合电路（10），包括输入放大器（12），混频器网络（14）和输出缓冲放大器（18）。输入放大器（12）被配置为利用交叉耦合反馈放大器（13）产生放大的RF信号并消除放大的RF信号中的输入三阶互调（IM 3）失真。混频器网络（14）被配置为基于放大的RF信号和本地振荡器信号产生中频（IF）信号。输出放大器（18）被配置为缓冲IF信号并且用交叉耦合反馈放大器（19）消除IF信号中的输出IM 3失真。输入放大器（12）和交叉耦合反馈放大器（13）还用作混频器网络（14）的偏置电流源，从而降低混合电路（10）所需的电源电压。

72. 发明申请

US20070052469A1 Mixer-system with gain-blocks and switches 有权
公开(公告)号：US20070052469A1
公开(公告)日：2007-03-08
申请号：US10554529
申请日：2004-04-27
申请人： Ernst Nordholt
发明人： Ernst Nordholt
IPC分类号： G06F7/44
CPC分类号： H03D7/145 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D2200/0007 , H03D2200/0025
摘要： Mixer-systems comprising gain-blocks (1-4) and switches (5-8) have a flexibility depending upon their configuration (insight) and are made more flexible (basic idea) by supplying data input signals to the gain-blocks (1-4) and oscillation signals to the switches (5-6) for switching couplings between the gain-blocks (1-4). A switch (5-6) comprises a switch-transistor and a gain-block (1-4) either comprises a gain-block-transistor or comprises five gain-block-transistors for increasing the linearity of the mixer-system. The switches (5-6) have main electrodes which in the balanced situation are all coupled via four impedances (13-16) to the gain-blocks (1-4). In the single ended situation two main electrodes are coupled via two impedances (13,15,18,20) to the gain-blocks (1-4) and two others are coupled directly to the gain-blocks (1-4). By introducing further switches (7-8) parallel to the switches (5-6), harmonics can be suppressed. The basic mixer-system has an improved performance which can be further improved easily.

73. 发明申请

US20070037545A1 Mixer for homodyne RF receiver 有权
标题翻译：混音器用于零差RF接收机
公开(公告)号：US20070037545A1
公开(公告)日：2007-02-15
申请号：US11314001
申请日：2005-12-22
申请人： Ying-Che Tseng , Nean-Chu Cheng
发明人： Ying-Che Tseng , Nean-Chu Cheng
IPC分类号： H04B1/26 , H04B1/28
CPC分类号： H04B1/30 , H03D7/145 , H03D7/165 , H03D2200/0033
摘要： A mixer of a homodyne RF receiver made from a CMOS process is provided. The mixer comprises a gain stage, a switch stage and a load stage. The gain stage receives a differential-typed RF signal and generating a first gained signal. The switch stage mixes the first gained signal and a LO signal to direct down-convert into a modulated signal. The load stage comprises a first transistor, an impedance element and a second transistor. The first transistor provides a low impedance to permit the modulated signal entering the load stage. The second transistor provides a high impedance to resist signals. The load stage converts the modulated signal to a second gained signal according to a first gain coefficient of the impedance element. The first transistor is a parallel pnp BJT, and the second transistor is a vertical npn bipolar BJT.
摘要翻译：提供由CMOS工艺制成的零差RF接收机的混频器。混频器包括增益级，开关级和负载级。增益级接收差分型RF信号并产生第一增益信号。开关级混合第一个获得的信号和一个LO信号，以将下变频转换成一个调制信号。负载级包括第一晶体管，阻抗元件和第二晶体管。第一晶体管提供低阻抗以允许调制信号进入负载级。第二晶体管提供高阻抗以抵抗信号。负载级根据阻抗元件的第一增益系数将调制信号转换为第二增益信号。第一晶体管是并联pnp BJT，第二晶体管是垂直npn双极性BJT。

74. 发明授权

US07102437B2 Integrated circuit device 失效
标题翻译：集成电路器件
公开(公告)号：US07102437B2
公开(公告)日：2006-09-05
申请号：US10936877
申请日：2004-09-09
申请人： Colin Perry
发明人： Colin Perry
IPC分类号： H03F3/45
CPC分类号： H03F1/302 , H03D7/145 , H03D7/1458 , H03D2200/0033 , H03D2200/0043 , H03F1/22 , H03F1/26 , H03F2200/372
摘要： An integrated circuit device includes an amplifier stage comprising a pair of transistors (134A, 134B), the respective bases or gates of which are connected together, as well as the respective emitters or sources. The respective drains or collectors of the transistors are capacitively coupled (166) so as to be effectively shorted at the frequencies of operation of the amplifier, A biasing circuit arrangement (144) is also provided which employs bias control feedback to set the bias currents for the transistors. The biasing circuit arrangement takes as its input the current flowing at one of the electrodes (160) of one of the transistors.
摘要翻译：集成电路器件包括放大器级，其包括一对晶体管（134A，134B），其相应的基极或栅极连接在一起，以及相应的发射极或源极。晶体管的相应的漏极或集电极电容耦合（166），以便在放大器的工作频率下被有效地短路。还提供偏置电路装置（144），其利用偏置控制反馈来设置偏置电流晶体管。偏置电路装置以其中一个晶体管的电极（160）中的一个流动的电流作为其输入。

75. 发明授权

US07099646B1 Signal mixer having a single-ended input and a differential output 有权
标题翻译：信号混频器具有单端输入和差分输出
公开(公告)号：US07099646B1
公开(公告)日：2006-08-29
申请号：US10764580
申请日：2004-01-27
申请人： Xiaodong Jin , Lawrence Tse
发明人： Xiaodong Jin , Lawrence Tse
IPC分类号： H04B1/26
CPC分类号： H03D7/1425 , H03D7/1433 , H03D7/145 , H03D7/1458 , H03D7/1491 , H03D2200/0023 , H03D2200/0088
摘要： A single-ended-to-differential mixer includes a differential input circuit having a single-ended input. The differential input circuit is responsive to a single-ended input signal to generate first and second signals. The single-ended-to-differential mixer includes a passive tank circuit in communication between a reference voltage and the differential input circuit. The single-ended-to-differential mixer includes a mixer circuit in communication with the differential input circuit and responsive to the first and second signals and a second input signal to generate a differential mixer output signal.
摘要翻译：单端到差分混频器包括具有单端输入的差分输入电路。差分输入电路响应于单端输入信号以产生第一和第二信号。单端到差分混频器包括在参考电压和差分输入电路之间通信的无源电路。单端到差分混频器包括与差分输入电路通信并响应于第一和第二信号的混频器电路和第二输入信号以产生差分混频器输出信号。

76. 发明申请

US20050231283A1 Integrated circuit device 失效
标题翻译：集成电路器件
公开(公告)号：US20050231283A1
公开(公告)日：2005-10-20
申请号：US10936877
申请日：2004-09-09
申请人： Colin Perry
发明人： Colin Perry
IPC分类号： H03D7/14 , H03F1/22 , H03F1/26 , H03F1/30 , H03F3/45
CPC分类号： H03F1/302 , H03D7/145 , H03D7/1458 , H03D2200/0033 , H03D2200/0043 , H03F1/22 , H03F1/26 , H03F2200/372
摘要： An integrated circuit device includes an amplifier stage comprising a pair of transistors (134A, 134B), the respective bases or gates of which are connected together, as well as the respective emitters or sources. The respective drains or collectors of the transistors are capacitively coupled (166) so as to be effectively shorted at the frequencies of operation of the amplifier, A biasing circuit arrangement (144) is also provided which employs bias control feedback to set the bias currents for the transistors. The biasing circuit arrangement takes as its input the current flowing at one of the electrodes (160) of one of the transistors.
摘要翻译：集成电路器件包括放大器级，其包括一对晶体管（134A，134B），其相应的基极或栅极连接在一起，以及相应的发射极或源极。晶体管的相应的漏极或集电极电容耦合（166），以便在放大器的工作频率下被有效地短路。还提供偏置电路装置（144），其利用偏置控制反馈来设置偏置电流晶体管。偏置电路装置以其中一个晶体管的电极（160）中的一个流动的电流作为其输入。

77. 发明申请

US20040152435A1 Process for reducing the second-order nonlinearity of a frequency transposition device and corresponding device 审中-公开
标题翻译：用于降低频移装置和对应设备的二阶非线性的过程
公开(公告)号：US20040152435A1
公开(公告)日：2004-08-05
申请号：US10718493
申请日：2003-11-20
申请人： STMicroelectronics SA
发明人： Bruno Pellat , Sylvie Gellida
IPC分类号： H04B001/26
CPC分类号： H03D7/145 , H03D7/1458 , H03D7/1491 , H03D7/165
摘要： A frequency transposition device includes a current switching circuit with two differential pairs of transistors being controlled by a local oscillator signal. In a current switching circuit calibration mode, the local oscillator is rendered inactive and the two pairs of transistors are calibrated in succession by zeroing the ground path current of one of the pairs of transistors not undergoing calibration, and by setting the voltage difference applied to the bases of the transistors of the pair of transistors undergoing calibration. This is done until the output voltage of the frequency transposition device is zeroed to within a predetermined accuracy. The base voltage difference obtained is stored after calibration. In a normal operating mode the local oscillator is rendered active, and the two stored voltage differences are applied to the respective bases of the two differential pairs of transistors.
摘要翻译：频率转置装置包括具有由本地振荡器信号控制的两个差分对晶体管的电流切换电路。在当前的开关电路校准模式中，本地振荡器变为无效，并且两对晶体管被连续校准，通过使未进行校准的晶体管对之一的接地路径电流归零，并且通过将施加到一对晶体管的晶体管的基极进行校准。直到频率转置装置的输出电压被调零到预定精度为止。获得的基准电压差在校准后存储。在正常操作模式中，本地振荡器被激活，并且两个存储的电压差被施加到两个差分对晶体管的相应基极。

78. 发明申请

US20040002319A1 Harmonic boost technique for direct conversion receiver 审中-公开
标题翻译：直接转换接收机的谐波升压技术
公开(公告)号：US20040002319A1
公开(公告)日：2004-01-01
申请号：US10353747
申请日：2003-01-29
发明人： Ching-Lang Lin
IPC分类号： H04B001/26
CPC分类号： H04B1/30 , G10H5/002 , H03D7/1433 , H03D7/145 , H03D7/1458 , H03D7/1466 , H03D7/1475 , H03D7/1491 , H03D7/165 , H03D2200/0047 , H03D2200/0084 , H03D2200/009
摘要： The present invention describes an Improved Harmonic Boosting Technique (IHBT) for achieving zero DC-offset in a direct conversion receiver (DCR). The technique may be applied to devices such as down converter, combiner, synthesizer, and voltage control oscillator. The present invention utilizes a voltage control oscillator (VCO) to generate lower even-order frequencies based on the receiver's carrier frequency (RF). A synthesizer, having a digital synthesizing circuit or a frequency multiplier circuit, produces odd order harmonic frequencies from the output of the VCO. A combiner combines odd order harmonic frequencies from the synthesizer to create a local oscillator (LO) signal. A down converter mixes an input signal with the LO output from the combiner.
摘要翻译：本发明描述了一种用于在直接转换接收机（DCR）中实现零直流偏移的改进的谐波升压技术（IHBT）。该技术可以应用于诸如下变频器，组合器，合成器和压控振荡器的设备。本发明利用压控振荡器（VCO）来基于接收机的载波频率（RF）产生较低的偶数频率。具有数字合成电路或倍频电路的合成器从VCO的输出产生奇数次谐波频率。组合器组合来自合成器的奇次谐波频率以产生本地振荡器（LO）信号。降压转换器将输入信号与来自组合器的LO输出进行混合。

79. 发明授权

US06650883B1 Mixer with adjustable linearity 失效
标题翻译：搅拌机具有可调直线性
公开(公告)号：US06650883B1
公开(公告)日：2003-11-18
申请号：US09606527
申请日：2000-06-30
申请人： Catala Stephane , Ganser Siegfried
发明人： Catala Stephane , Ganser Siegfried
IPC分类号： H04B126
CPC分类号： H03D7/145 , H03D7/1433 , H03D7/1458 , H03D7/1491 , H03D2200/0088
摘要： A four-quadrant multiplier for mixing RF signals comprises two differential amplifiers respectively connected as a load of a third differential amplifier. Both the negative feedback and the load of the third differential amplifier can be altered. Changing the negative feedback permits adjustment of the linearity range of the four-quadrant multiplier.
摘要翻译：用于混合RF信号的四象限乘法器包括分别作为第三差分放大器的负载连接的两个差分放大器。可以改变第三差分放大器的负反馈和负载。改变负反馈允许调整四象限乘法器的线性范围。

80. 发明授权

US06275688B1 Double balanced mixer 失效
标题翻译：双平衡搅拌机
公开(公告)号：US06275688B1
公开(公告)日：2001-08-14
申请号：US09252931
申请日：1999-02-19
申请人： Minoru Takagi , Masahiro Tsukahara
发明人： Minoru Takagi , Masahiro Tsukahara
IPC分类号： H04Q720
CPC分类号： H03D7/145 , H03D7/1433 , H03D7/1458 , H03D2200/0043 , H03D2200/0084
摘要： A double balanced mixer which may be used in communications devices, such as portable or cellular telephones. The mixer includes a first differential amplifier having a first transistor pair whose emitters are connected together, a second differential amplifier having a second transistor pair whose emitters are connected together, and a third differential amplifier having a third transistor pair whose emitters are connected together by way of a resistor. A first constant current source is connected between the emitter of one of the transistors of the third transistor pair and ground. A second constant current source is connected between the emitter of the other transistor of the third transistor pair and ground. A gate circuit is connected to one of the first and second current sources for selectively activating the one connected current source. By selectively activating the current source, the mixer has low power consumption.
摘要翻译：双平衡混频器，可用于通信设备，如便携式或蜂窝电话。混频器包括具有发射极连接在一起的第一晶体管对的第一差分放大器，具有发射极连接在一起的第二晶体管对的第二差分放大器，以及发射极通过其连接在一起的第三晶体管对的第三差分放大器的电阻。第一恒流源连接在第三晶体管对的一个晶体管的发射极和地之间。第二恒流源连接在第三晶体管对的另一个晶体管的发射极和地之间。门电路连接到第一和第二电流源中的一个，用于选择性地激活一个连接的电流源。通过选择性地激活电流源，混频器具有低功耗。

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