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31. 发明公开

EP1227577A1 Method and apparatus for compensation of cross modulation effects 有权
标题翻译： Verfahren und Vorrichtung zur Kompensation von Kreuzmodulationseffekten
公开(公告)号：EP1227577A1
公开(公告)日：2002-07-31
申请号：EP01200263.0
申请日：2001-01-23
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ)
发明人： Lindell, Bo
IPC分类号： H03F1/32 , H03C1/06 , H03C3/08 , H03G3/00
CPC分类号： H03G3/005 , H03F1/3247 , H04B1/109
摘要： The present invention relates generally to a method and apparatus for cross modulation compensation in RF devices giving rise to cross modulation. A test signal as well as a wanted signal are applied to the RF device in which cross modulation appears. The cross modulation experienced by the test signal is measured, and the result hereby obtained is used for cross modulation compensation of the wanted signal at the RF device output.
摘要翻译：本发明一般涉及用于交叉调制的RF装置中的交叉调制补偿的方法和装置。测试信号以及有用信号被施加到出现交叉调制的RF设备。测量由测试信号经历的交叉调制，并且由此得到的结果用于在RF器件输出端的有用信号的交叉调制补偿。

32. 发明公开

EP0550128A2 Voltage controlled component 失效
标题翻译： Spannungsgesteuertes Teil。
公开(公告)号：EP0550128A2
公开(公告)日：1993-07-07
申请号：EP92309079.9
申请日：1992-10-05
申请人： NOKIA MOBILE PHONES LTD.
发明人： Hietala, Seppo
IPC分类号： H03B7/06 , H03B7/14 , H03B19/05 , H03K3/80 , H03K17/74 , H03C3/22 , H03C3/08
CPC分类号： H03J3/185
摘要： The invention relates to a biased electronic circuit in which a voltage-controlled component has a characteristic with a non-linear portion and a substantially linear portion. The circuit is biased by a voltage being applied to one terminal of the component thereby shifting the operation of the component to the linear portion.
摘要翻译：本发明涉及一种偏置电子电路，其中电压控制部件具有非线性部分和基本线性部分的特性。电路被施加到部件的一个端子的电压偏置，从而将部件的操作移动到线性部分。

33. 发明公开

EP0495921A4 STABILIZING CIRCUIT FOR FEEDBACK RF AMPLIFIER 失效
标题翻译：用于反馈射频放大器的稳定电路
公开(公告)号：EP0495921A4
公开(公告)日：1992-09-23
申请号：EP90917172
申请日：1990-10-10
申请人： MOTOROLA, INC.
发明人： LEITCH, CLIFFORD, D.
IPC分类号： H03F1/26 , H03C3/08 , H03F1/32 , H03F1/34 , H04L27/36
CPC分类号： H03F1/3282 , H03C3/08 , H03F1/3247 , H03F1/3276 , H03F1/3294 , H03F1/34 , H03F2200/102 , H03F2200/336 , H03F2200/57 , H04L27/368
摘要： A transmitter (100), with an inphase input (102) for receiving an inphase baseband input signal, and a quadrature input (112) for receiving a quadrature baseband input signal, comprises a modulator (130), coupled to the inphase and quadrature inputs, for modulating the inphase and quadrature baseband signals, to provide a modulated radio-frequency signal, and a linear amplifier (135), coupled to the modulator, for amplifying the modulated radio-frequency signal to produce an output signal. An oscillation detector is coupled to receive the output signal, for detecting oscillation, and for producing an error signal as a result of the oscillation. The transmitter also comprises circuitry (transmission gates 124, 126, 127, and 128) for reducing the open loop gain of the feedback loop, disposed between the inphase and quadrature inputs and the modulator. The circuitry for reducing the open loop gain reduces the open loop gain of the transmitter to less than one, in response to the error signal.

34. 发明公开

EP0185758A4 A DATA FREQUENCY MODULATOR WITH DEVIATION CONTROL. 失效
标题翻译：与控制频率偏差数据频率调制器。
公开(公告)号：EP0185758A4
公开(公告)日：1988-07-11
申请号：EP85903537
申请日：1985-06-21
申请人： MOTOROLA INC
发明人： CARNEY SCOTT N , GOODE STEVEN H , LINDER DONALD L
IPC分类号： H04L27/12 , H03C3/06 , H03C3/08 , H03C3/09 , H04L27/20
CPC分类号： H03C3/0983 , H03C3/0941 , H03C3/0966 , H03C2200/005 , H04L27/2017
摘要： An automatic deviation control circuit for an angle modulated data transmitter wherein the deviation level of modulated data output from VCO (300) is controlled by a modulation cancelling deviation error detection feedback loop comprising mixer (600), phase detector (408A), low pass filter (410), and VCO (406). After the modulation is cancelled by said feedback loop from a sample of modulated carrier by a predetermined value of deviation developed by divider (302), residual modulation is detected by phase detector (408A), sampled by S/H (808 and 810) following a predetermined number of like-level data bits, and applied to the modulation path gain of amplifier (802) to increase or decrease the deviation such that the residual modulation is minimized.

35. 发明公开

EP0196868A2 Frequency synthesizer modulation response linearization 失效
标题翻译：频谱合成仪器。
公开(公告)号：EP0196868A2
公开(公告)日：1986-10-08
申请号：EP86302228.1
申请日：1986-03-26
申请人： MOTOROLA, INC.
发明人： Sonnenberg, John R.
IPC分类号： H03L7/18 , H03C3/09 , H03C3/08
CPC分类号： H03C3/0966 , H03C2200/0083 , H03L7/0898 , H03L7/183
摘要： In accordance with the present invention, there is provided a method of substantially flattening the modulation response in a frequency synthesizer. The method includes the steps of generating a synthesized frequency F o in response to a filtered control signal V s ; scaling the synthesized frequency F o with a scalar N; generating a control signal l o , having a response substantially the reciprocal of the frequency generation response, and indicative of the phase relationship between a reference frequency F, and the scaled, synthesized frequency F n ; and filtering the control signal, whereby the interaction of the phase relationship control signal response and the frequency generation response approximates a flat modulation response.
摘要翻译：根据本发明，提供了一种在频率合成器中基本平坦化调制响应的方法。该方法包括响应于滤波的控制信号产生合成频率的步骤; 用标量缩放合成频率; 产生具有基本上是频率产生响应的倒数的响应并且指示参考频率和缩放的合成频率之间的相位关系的控制信号; 并且对该控制信号进行滤波，由此相位关系控制信号响应和频率产生响应的相互作用接近于平坦调制响应。

36. 发明申请

WO01079880A1 METHOD FOR DETECTING AND CORRECTING NON-LINEARITIES IN A MICROWAVE RADAR SYSTEM 审中-公开
标题翻译：一种用于在微波雷达探测系统和非线性校正
公开(公告)号：WO01079880A1
公开(公告)日：2001-10-25
申请号：PCT/DE2001/001278
申请日：2001-03-31
IPC分类号： G01S7/35 , G01S7/40 , G01S13/34 , G01S13/93 , H03C3/08
CPC分类号： G01S13/34 , G01S7/032 , G01S7/352 , G01S7/4008 , G01S13/931 , H03C3/08
摘要： Disclosed is a method for detecting and compensating non-linearities in a microwave radar system, wherein a transmission signal whose frequency is modulated according to a given function is produced with the aid of a transmission oscillator (1) and the distance of the microwave radar system from an object is determined from a mixed transmission signal and a received signal which is reflected by the object. A predetermined constant test control voltage, as opposed to a control voltage acting upon the frequency modulation, preferably with a test ramp (16), is switched to the transmission oscillator (1) within given time windows ( DELTA t). A reference signal determined at the respectively constant test control voltage, corresponding to a frequency value of the transmission oscillator (1), is used to correct the characteristic curve for frequency modulation and thus to compensate non-linearities.
摘要翻译：它是在一个微波雷达系统中提出，用于检测和补偿在其中发送振荡器（1）的频率调制，根据一个预定的功能的发送信号被生成并从与由物体反射的发送信号的混合物的非线性的方法接收的信号，所述微波雷达系统的距离从对象来确定。在预定义的时间窗（DELTA t）是不是频率调制引起的驱动电压，最好用测试斜坡（16），连接一个预定的常数Testa的控制电压施加到传输振荡器（1），其中，在相应的恒定Testa的控制电压参考信号检测具有发送振荡器的频率值（1），以校正频率调制的特性曲线，并因此用于补偿非线性。

37. 发明申请

WO9919990A3 COMPENSATION OF DELAY IN LINEARIZATION LOOP OF POWER AMPLIFIER 审中-公开
标题翻译：功率放大器线性化延迟的补偿补偿
公开(公告)号：WO9919990A3
公开(公告)日：1999-06-24
申请号：PCT/FI9800786
申请日：1998-10-07
申请人： NOKIA TELECOMMUNICATIONS OY , PELLONPERAE MARKO
发明人： PELLONPERAE MARKO
IPC分类号： H03F1/32 , H03C3/08 , H03F1/34 , H03F3/191 , H03F3/24 , H04B1/04 , H04B1/40 , H04L27/20 , H04L27/36
CPC分类号： H03F3/191 , H03C3/08 , H03F1/32 , H03F1/34 , H03F3/24 , H03F2200/336 , H03F2200/451 , H04B2001/0433 , H04L27/368
摘要： A method of compensating delay in a linearization loop of a power amplifier and a linearization arrangement of a power amplifier, which arrangement comprises an I/Q modulator (10), one or more power amplifiers (13) to be linearized and generating delay, and a feedback loop comprising an I/Q demodulator (11) when the I/Q modulator (10) and the I/Q demodulator (11) derive an oscillator frequency from the same local oscillator (14). In accordance with the invention, the delay generated by the power amplifier in the feedback is compensated by delaying a local oscillator signal applied to the I/Q demodulator (11). The delay of the local oscillator signal applied to the I/Q demodulator (11) is generated by an amplifier optimized to have a great delay, preferably by a small-signal amplifier.
摘要翻译：一种补偿功率放大器的线性化环路中的延迟和功率放大器的线性化布置的方法，该装置包括I / Q调制器（10），要被线性化并产生延迟的一个或多个功率放大器（13），以及当所述I / Q调制器（10）和所述I / Q解调器（11）从相同的本地振荡器（14）导出振荡器频率时，包括I / Q解调器（11）的反馈回路。根据本发明，通过延迟施加到I / Q解调器（11）的本地振荡器信号来补偿功率放大器在反馈中产生的延迟。施加到I / Q解调器（11）的本地振荡器信号的延迟由优化为具有很大延迟的放大器产生，优选地通过小信号放大器。

38. 发明申请

WO99023756A1 METHOD AND DEVICE IN A TELECOMMUNICATION SYSTEM 审中-公开
标题翻译：电信系统中的方法和设备
公开(公告)号：WO99023756A1
公开(公告)日：1999-05-14
申请号：PCT/SE1998/001991
申请日：1998-11-03
IPC分类号： H03C3/08 , H03D7/16 , H03F1/32 , H03F1/34 , H04L27/20 , H04L27/36 , H03G3/20
CPC分类号： H03F1/34 , H03C3/08 , H03D7/168 , H03F1/3229 , H03F1/3247 , H03F1/3282 , H03F1/3294 , H03F1/345 , H03F2200/57 , H03F2201/3231 , H04L27/368
摘要： According to the invention, a Cartesian control means (16) comprising a phase rotator (50) and a phase adjuster (52) is provided. With a method and a device according to the invention, a system is provided that is unconditionally stable with respect to non-phase alignment, regardless of input power changes, temperature and component ageing. No certain conditions need to be placed upon the control system to ensure stability, i.e. the system is non-obtrusive and requires no off-line calibration. The inclusion of the phase rotator (50) and phase adjustment techniques into the Cartesian control system makes this possible.
摘要翻译：根据本发明，提供了包括相位旋转器（50）和相位调节器（52）的笛卡尔控制装置（16）。利用根据本发明的方法和装置，提供了无论输入功率变化，温度和组件老化如何，都相对于非相位对准无条件稳定的系统。控制系统不需要放置某些条件以确保稳定性，即系统不引人注目，不需要离线校准。将相位旋转器（50）和相位调整技术纳入笛卡尔控制系统使得这成为可能。

39. 发明申请

WO99013590A1 RF TRANSMITTER 审中-公开
标题翻译：射频发射器
公开(公告)号：WO99013590A1
公开(公告)日：1999-03-18
申请号：PCT/GB1998/002716
申请日：1998-09-09
IPC分类号： H03C3/08 , H03D7/16 , H04B1/04 , H04L27/36
CPC分类号： H04L27/368 , H03C3/08 , H03D7/168 , H03F1/34 , H03F3/24 , H04B2001/0433
摘要： An RF transmitter employs negative feedback to reduce non-linearities in power amplifying means (18 to 21) and, since the transmitter received as input I and Q components, a Cartesian Loop is provided, by means of which a signal derived from the output of the amplifier by a probe (22) is split into de-modulated I and Q components in order to provide feedback signals at (27 and 28). Unfortunately the negative feedback cannot correct for errors in the feedback loop itself, and component imperfections introduce a DC offset into the feedback loop. The modulation is suppressed carrier but the DC offset re-introduces the carrier. The invention provides a method of reducing the DC offset to reduce the carrier breakthrough by injecting known DC offsets into the I and Q inputs and measuring the resulting ripple in the output of the power amplifier means corresponding to the re-introduced carrier, enabling calibration offset DC levels to be calculated and injected into inputs (27, 28).
摘要翻译： RF发射机使用负反馈来减小功率放大装置（18至21）中的非线性，并且由于作为输入I和Q分量接收到的发射机提供了笛卡尔环路，借助于该方法，从通过探头（22）的放大器被分解成去调制的I和Q分量，以便在（27和28）提供反馈信号。不幸的是，负反馈不能纠正反馈回路本身中的错误，而组件缺陷会在反馈回路中引入直流偏移。调制被抑制载波，但DC偏移重新引入载波。本发明提供一种通过将已知的DC偏移注入I和Q输入并测量与重新引入的载波相对应的功率放大器装置的输出中产生的纹波来减小DC偏移以减少载波突破的方法，使校准偏移直流电平计算并注入输入（27,28）。

40. 发明申请

WO2009147793A2 SELF-CALIBRATING MODULATOR APPARATUSES AND METHODS 审中-公开
标题翻译：自校准调制器装置及方法
公开(公告)号：WO2009147793A2
公开(公告)日：2009-12-10
申请号：PCT/JP2009/002237
申请日：2009-05-21
申请人： PANASONIC CORPORATION , LEE, Wayne , KATO, Akira , MATSUURA, Toru
发明人： LEE, Wayne , KATO, Akira , MATSUURA, Toru
IPC分类号： H03C3/08
CPC分类号： H03C3/0941 , H03C3/08 , H03C3/095 , H03C3/0975 , H03C3/0991 , H03C5/00
摘要： A self-calibrating modulator apparatus (300) includes a modulator having a controlled oscillator (326) and an oscillator gain calibration circuit (304). The oscillator gain calibration circuit includes an oscillator gain coefficient calculator (332) configured to calculate a plurality of frequency dependent oscillator gain coefficients from results of measurements taken at the output of the controlled oscillator in response to a test pattern signal representing a plurality of different reference frequencies. The plurality of frequency dependent gain coefficients determined from the calibration process are stored in a look up table (LUT) (334), where they are made available after the calibration process ends to scale a modulation signal applied to the modulator. By scaling the modulation signal prior to it being applied to the control input of the controlled oscillator, the nonlinear response of the controlled oscillator is countered and the modulation accuracy of the modulator is thereby improved.
摘要翻译：自校准调制器装置（300）包括具有受控振荡器（326）和振荡器增益校准电路（304）的调制器。振荡器增益校准电路包括振荡器增益系数计算器（332），其被配置为响应于表示多个不同参考的测试模式信号，根据在受控振荡器的输出处获取的测量结果来计算多个频率相关振荡器增益系数频率。从校准过程确定的多个与频率相关的增益系数被存储在查询表（LUT）（334）中，在校准过程结束之后使其可用以缩放施加到调制器的调制信号。通过在将调制信号应用于受控振荡器的控制输入之前缩放调制信号，可以对受控振荡器的非线性响应进行调整，从而提高调制器的调制精度。

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