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21. 发明申请

WO2003021804A1 NEW RFIC TRANSCEIVER ARCHITECTURE AND METHOD FOR ITS USE 审中-公开
标题翻译：新的RFIC收发器架构及其使用方法
公开(公告)号：WO2003021804A1
公开(公告)日：2003-03-13
申请号：PCT/US2002/027191
申请日：2002-08-27
申请人： ENVARA LTD. , FRIEDMAN, Mark, M. , NADIRI, Zivi , MELAMED, Raviv
发明人： NADIRI, Zivi , MELAMED, Raviv
IPC分类号： H04B1/38
CPC分类号： H04L27/364 , H03D7/166 , H03D2200/0084 , H03F1/3241 , H03F1/3247 , H04B1/30 , H04B1/403 , H04B2001/0425 , H04L2027/0016
摘要： A method of converting RF to base-band signals, or base-band to RF signals, using a novel receiver and transmitter architecture, implementable on a RFIC. The method uses a two-stage conversion sequence: RF to base-band followed by base-band to intermediate frequency in the receiver, and an opposite sequence in the transmitter. A preferred embodiment of the architecture uses a double balance quadrature demodulator (208)for the RF to base-band down-conversion, and an image reject quadrature modulator (230)for the base-band to intermediate frequency conversion. The architecture is further enhanced to perform power saving and dual-band reception and transmission.
摘要翻译：使用可在RFIC上实现的新型接收机和发射机架构将RF转换为基带信号或基带到RF信号的方法。该方法使用两级转换序列：RF到基带，随后是接收机中的基带到中频，并且发射机中的相反序列。该架构的优选实施例使用用于RF到基带下变频的双平衡正交解调器（208）和用于基带到中频变换的图像拒绝正交调制器（230）。该架构进一步增强，以执行省电和双频带接收和传输。

22. 发明申请

WO0229985A3 A CALIBRATED DC COMPENSATION SYSTEM FOR A WIRELESS COMMUNICATION DEVICE CONFIGURED IN A ZERO INTERMEDIATE FREQUENCY ARCHITECTURE 审中-公开
标题翻译：用于零中频配置的无线通信设备的校准直流补偿系统
公开(公告)号：WO0229985A3
公开(公告)日：2003-01-30
申请号：PCT/US0130827
申请日：2001-10-01
申请人： INTERSIL INC
发明人： BALDWIN KEITH R , LANDY PATRICK J , WEBSTER MARK A , SCHULTZ R DOUGLAS , PRENTICE JOHN S
IPC分类号： H03G3/20 , H03D3/00 , H03G3/30 , H03L7/081 , H03L7/085 , H04B1/30 , H04L27/00 , H04B1/40
CPC分类号： H04B1/30 , H03D3/008 , H03D3/009 , H03L7/0812 , H03L7/085 , H04L27/0014 , H04L2027/0016
摘要： A calibrated DC compensation system for a wireless communication device (400, 500, 600, 700) configured in a zero intermediate frequency (ZIF) architecture. The device includes ZIF transceiver (201) and a baseband processor (203), which further includes a calibrator (401) that periodically performs a calibration procedure. The baseband processor includes gain control logic (345), DC control logic (347), a gain converter (331) and the calibrator (401). The gain converter converts gain between the gain control logic and the DC control logic. The calibrator programs the gain converter (331) with values determined during the calibration procedure. The calibration procedure includes sampling an output signal for each gain step of the baseband amplifier (307) at two predetermined range values and corresponding DC offsets using successive approximation. The data is used to calculate gain, DC offset and DC differential values, which are used to determine the conversion values.
摘要翻译：一种用于以零中频（ZIF）架构配置的无线通信设备（400,500,600,700）的校准DC补偿系统。该设备包括ZIF收发器（201）和基带处理器（203），其还包括定期执行校准过程的校准器（401）。基带处理器包括增益控制逻辑（345），直流控制逻辑（347），增益转换器（331）和校准器（401）。增益转换器在增益控制逻辑和直流控制逻辑之间转换增益。校准器使用在校准过程中确定的值来对增益转换器（331）进行编程。校准过程包括使用逐次逼近以两个预定范围值和对应的DC偏移对基带放大器（307）的每个增益步进的输出信号进行采样。该数据用于计算用于确定转换值的增益，直流偏移和直流差分值。

23. 发明申请

WO2003003686A1 IQ-IMBALANCE 审中-公开
标题翻译： IQ不平衡
公开(公告)号：WO2003003686A1
公开(公告)日：2003-01-09
申请号：PCT/FI2002/000555
申请日：2002-06-25
申请人： NOKIA CORPORATION , AURANEN, Tommi , KAJAVA, Juha
发明人： AURANEN, Tommi , KAJAVA, Juha
IPC分类号： H04L27/26
CPC分类号： H03D3/009 , H04B1/30 , H04L27/2649 , H04L2027/0016
摘要： The invention relates to a method for correcting an IQ-imbalance (In-phase and Quadrature) of an IQ-based direct conversion receiver (200). In the method a group of radio frequency pilot signals are received in the direct conversion receiver (200). They are conveyed to an in-phase branch and a quadrature-phase branch of the receiver (200) and mixed, in the analogue domain, to form a baseband in-phase (I) and quadrature-phase (Q) signal components. The signal componets are conveyed to a digital demodulator (210) which detects the IQ-phase imbalance of the direct conversion receiver (200) by analysing at least one of the baseband in-phase (I) and the quadrature-phase (Q) signal components. In the method, the detected IQ-imbalance is corrected, in the analogue domain of the direct conversion receiver (200), to achieve a 90 degrees phase difference between a future baseband in-phase (I) signal component and a future baseband quadrature-phase (Q) signal component.
摘要翻译：本发明涉及用于校正基于IQ的直接转换接收机（200）的IQ不平衡（同相和正交）的方法。在该方法中，在直接转换接收器（200）中接收一组射频导频信号。它们被传送到接收器（200）的同相分支和正交相分支，并在模拟域中混合形成基带同相（I）和正交相位（Q）信号分量。信号组件被传送到数字解调器（210），数字解调器（210）通过分析基带同相（I）和正交相位（Q）信号中的至少一个来检测直接转换接收机（200）的IQ相位不平衡组件。在该方法中，在直接转换接收器（200）的模拟域中，校正的IQ不平衡被校正，以在未来的基带同相（I）信号分量和未来的基带正交（I）信号分量之间达到90度的相位差）相（Q）信号分量。

24. 发明申请

WO0225804A2 CALIBRATION OF A QUADRATURE RECEIVER 审中-公开
标题翻译：标准接收器的校准
公开(公告)号：WO0225804A2
公开(公告)日：2002-03-28
申请号：PCT/EP0110320
申请日：2001-09-06
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： MOHINDRA RISHI
IPC分类号： H03D7/00 , H03D3/00 , H03D9/00 , H04B1/30 , H04L27/00
CPC分类号： H03D3/009 , H04L2027/0016 , H04L2027/0024
摘要： A receiver is calibrated. First, it is ensured tat an input of the receiver does not receive useful signals. Thereafter, quadrature output signals of the receiver are correlated and a relative phase of quadrature local oscillators signals, which are used to down-convert received signals, is set at a value corresponding to a minimum correlation value.
摘要翻译：接收机被校准。首先，确保接收机的输入不接收有用的信号。此后，将接收机的正交输出信号相关，并将用于降频转换接收信号的正交本地振荡器信号的相对相位设置为对应于最小相关值的值。

25. 发明申请

WO01069876A1 COMPENSATION OF MISMATCH IN QUADRATURE DEVICES 审中-公开
标题翻译：补偿装置中的错配
公开(公告)号：WO01069876A1
公开(公告)日：2001-09-20
申请号：PCT/EP2001/002433
申请日：2001-03-05
IPC分类号： H04L27/20 , H03D3/00 , H03D7/16 , H03M3/02 , H03M3/04 , H04L27/00 , H04L27/36
CPC分类号： H04L27/00 , H03D3/008 , H03D3/009 , H03D7/165 , H03M3/338 , H03M3/40 , H04L2027/0016
摘要： In order to reduce the effect of mismatch in the I and Q paths of a quadrature device, which may be, for example, a mixer or a sigma-delta modulator, the data on the paths are swapped at high speed.
摘要翻译：为了减少正交装置（例如混频器或Σ-Δ调制器）的I和Q路径中的失配的影响，路径上的数据被高速地交换。

26. 发明申请

WO01024389A1 COMMUNICATION SYSTEM WITH END-TO-END QUADRATURE BALANCE CONTROL 审中-公开
标题翻译：具有端到端平衡平衡控制的通信系统
公开(公告)号：WO01024389A1
公开(公告)日：2001-04-05
申请号：PCT/US2000/024534
申请日：2000-09-07
IPC分类号： H04B17/00 , H04L27/00 , H04B1/38 , H04L5/16
CPC分类号： H04L27/0014 , H04L2027/0016 , H04L2027/002
摘要： A communication system (10) includes a transmitter (20) having programmable signals (46, 58, 60, 80) which can be used to adjust transmitter-caused quadrature-phase signal imbalances. A receiver (18) of the system (10) is remotely located from the transmitter (20) and generates a signal quality statistic (102, 112) that is monitored in a slow-tracking feedback loop to formulate commands which indicate how to program the programmable signals (46, 58, 60, 80). This receiver (18) performs its signal quality statistic monitoring while a data stream (36) is being extracted from a received communication signal.
摘要翻译：通信系统（10）包括具有可编程信号（46,58,60,80）的发射机（20），其可用于调整发射机引起的正交相位信号不平衡。系统（10）的接收器（18）远离发射机（20），并且产生在慢跟踪反馈回路中监控的信号质量统计（102,112），以制定指示如何对可编程信号（46,58,60,80）。当从接收的通信信号中提取数据流（36）时，该接收器（18）执行其信号质量统计监视。

27. 发明申请

WO01020774A1 WIRELESS TRANSMITTER HAVING A MODIFIED TRANSLATION LOOP ARCHITECTURE 审中-公开
标题翻译：具有改进的翻译环路架构的无线发射机
公开(公告)号：WO01020774A1
公开(公告)日：2001-03-22
申请号：PCT/US2000/024300
申请日：2000-09-01
IPC分类号： H03C3/09 , H03L7/18 , H03L7/185 , H04L27/00 , H04B1/04 , H04B1/40
CPC分类号： H03C3/0983 , H03C3/0966 , H03L7/1806 , H03L7/185 , H04L2027/0016 , H04L2027/0018
摘要： A transmitter for a wireless handset having a modified translation loop architecture. The transmitter includes a VCO (308) that generates a modulated transmit signal having a frequency F Tx, and a modulated signal source (318) that generates a modulated LO signal with a frequency F LO. A mixer (316) mixes the transmit signal with the LO signal to produce an IF signal having a frequency F IF. A first divider (310) divides the LO signal frequency F LO by an integer M to generate a first comparison signal having a frequency F CF. A second divider (312) divides the IF signal frequency F IF, after it is multiplied by an integer K , by an integer N to generate a second comparison signal having a frequency F CF. The transmit and LO signal frequencies have the relationship F Tx = F LO (KM+/-N)/M. A phase detector (302) coupled to the first and second comparison signals compares the phases of the signals and outputs a control voltage to the VCO proportional to any phase differences between the signals.
摘要翻译：一种用于具有修改的平移环结构的无线手机的发射机。发射机包括产生具有频率为Tx的调制发射信号的VCO（308），以及产生具有频率为F Tx的经调制的LO信号的调制信号源（318）我> LO。混频器（316）将发送信号与LO信号混频以产生具有频率IF IF的IF信号。第一分频器（310）将LO信号频率F LO除以整数M，以产生具有频率F CF的第一比较信号。第二分频器（312）将IF信号频率IF IF在其乘以整数N i之后除以整数N i，以产生具有频率为F CF的第二比较信号。发射和LO信号频率具有关系式F 1 = F 1（LO）（KM +/- N）/ M。耦合到第一和第二比较信号的相位检测器（302）比较信号的相位，并将控制电压输出到与信号之间的任何相位差成比例的VCO。

28. 发明申请

WO01015317A1 AUTOMATIC GAIN CONTROL LOOP FOR FREQUENCY CONVERSION OF QUADRATURE SIGNALS 审中-公开
标题翻译：自动增益控制环频率信号的频率转换
公开(公告)号：WO01015317A1
公开(公告)日：2001-03-01
申请号：PCT/US2000/022041
申请日：2000-08-11
IPC分类号： H03D1/22 , H03D3/00 , H03G3/30 , H04L27/00 , H03D7/16
CPC分类号： H03D3/007 , H03D1/2245 , H03D3/009 , H03G3/3052 , H04L27/0014 , H04L2027/0016 , H04L2027/0024
摘要： A communications device (3) includes a frequency conversion circuit (12) and a control circuit (10). An antenna (2) receives a radio signal at a first frequency and converts it into a radio frequency (RF) signal of the first frequency. The frequency conversion circuit (12) is associated with the antenna (2) and configured to convert the RF signal into a first signal component (I) and a second signal component (Q). The first and second signal components (I, Q) occupy a baseband. The control circuit has first ports (19a, 19b) connected to the frequency conversion circuit (10) to receive the first and second signal components (I, Q) and second ports (21a, 21b) connected to a processor circuit (38) to output amplified first and second signal components, and separate channels (I Channel, Q Channel) for the first and second signal components (I, Q) existing between the first and second ports (19a, 19b, 21a, 21b). Each channel (I Channel, Q Channel) comprises an amplifier (44, 46) and a feedback loop (48, 52, 56, 50, 54, 58) configured to control the amplifier (44, 46) as a function of a reference signal and a control signal (RSSI) derived from the RF signal. The communications device (3) may be a cellular phone comprising a direct conversion module.
摘要翻译：通信设备（3）包括频率转换电路（12）和控制电路（10）。天线（2）以第一频率接收无线电信号并将其转换成第一频率的射频（RF）信号。频率转换电路（12）与天线（2）相关联并且被配置为将RF信号转换成第一信号分量（I）和第二信号分量（Q）。第一和第二信号分量（I，Q）占据基带。控制电路具有连接到频率转换电路（10）的第一端口（19a，19b），以接收连接到处理器电路（38）的第一和第二信号分量（I，Q）和第二端口（21a，21b）到输出放大的第一和第二信号分量，以及用于存在于第一和第二端口（19a，19b，21a，21b）之间的第一和第二信号分量（I，Q）的单独信道（I Channel，Q Channel）。每个通道（I通道，Q通道）包括放大器（44,46）和反馈回路（48,52,56,50,54,58），其被配置为根据参考值控制放大器（44,46）信号和从RF信号导出的控制信号（RSSI）。通信设备（3）可以是包括直接转换模块的蜂窝电话。

29. 发明申请

WO00044143A1 CORRECTION OF AMPLITUDE AND PHASE IMBALANCE IN PSK RECEIVERS 审中-公开
标题翻译： PSK接收机中的幅度和相位不平衡的校正
公开(公告)号：WO00044143A1
公开(公告)日：2000-07-27
申请号：PCT/US1999/029002
申请日：1999-12-07
IPC分类号： H03C3/02 , H03C5/00 , H04L27/00 , H04L27/01 , H04L27/18 , H04L27/22
CPC分类号： H04L27/0014 , H04L27/22 , H04L2027/0016 , H04L2027/0024
摘要： The present invention balances the amplitude and phase of a received QPSK signal that may have been corrupted during transmission. The system determines the amplitude of the I and Q symbols of a received signal, compares them, and applies a correction to one or both channels to correct for amplitude imbalance. For phase imbalance, the system calculates the cross-correlation of the I and Q symbols which should average to zero. A correction factor is derived from the cross-correlation and applied to both channels, returning the phase cross-correlation to zero. The output from the system is a signal corrected in both amplitude and phase.
摘要翻译：本发明平衡在发送期间可能被破坏的接收的QPSK信号的幅度和相位。系统确定接收信号的I和Q符号的幅度，将其进行比较，并对一个或两个信道进行校正，以校正幅度不平衡。对于相位不平衡，系统计算应平均为零的I和Q符号的互相关。校正因子从互相关导出并应用于两个通道，将相位互相关返回到零。系统的输出是在幅度和相位上均校正的信号。

30. 发明申请

WO99059306A1 APPARATUS AND METHOD FOR EFFICIENT WIRELESS COMMUNICATIONS IN THE PRESENCE OF FREQUENCY ERROR 审中-公开
标题翻译：有效无线通信存在频率错误的装置和方法
公开(公告)号：WO99059306A1
公开(公告)日：1999-11-18
申请号：PCT/US1999/010156
申请日：1999-05-10
IPC分类号： H04L27/00 , H04L27/227 , H04L27/06
CPC分类号： H04L27/2273 , H04L2027/0016
摘要： A receiver (fig.1) for efficient wireless communications in the presence of frequency error in a radio frequency received signal is disclosed. The receiver (fig.1) comprising a receiver channel, a wide band frequency acquisition mode (23), automatic frequency control (33, 41, 43, 45, 57, 55, 53), a narrow band demodulation mode (27) and a demodulator (35). The receiver channel has a variable bandwidth and an approximately fixed receiver mid-channel frequency (fig.4). The wide band frequency acquisition mode comprises a wide channel filter which initially defines the bandwidth to be greater than the frequency error in the received signal and wherein the frequency error is determined by comparing the received signal frequency to the receiver mid-channel frequency. The automatic frequency control comprises at least one frequency adjustable local oscillator (55) which adjusts the local oscillator based upon the frequency error such that the frequency difference between the receiver mid-channel frequency and the receiver signal is made negligible, thereby approximately centering the received signal within the bandwidth in the wide band frequency acquisition mode. The narrow band demodulation mode (27) comprises a narrow channel filter which narrows the bandwidth of the receiver channel with respect to the wide band frequency acquisition mode maintains approximately the same receiver mid-channel frequency. The demodulator (35) demodulates the received signal in the narrow band demodulation mode.
摘要翻译：公开了一种在频率接收信号频率存在的情况下进行高效无线通信的接收机（图1）。接收机（图1）包括接收机信道，宽带频率获取模式（23），自动频率控制（33,41,43,45,57,55,53），窄带解调模式（27）和解调器（35）。接收机信道具有可变带宽和近似固定的接收机中频信道频率（图4）。宽带频率采集模式包括一个宽信道滤波器，其初始将带宽定义为大于接收信号中的频率误差，并且其中通过将接收信号频率与接收机中频道频率进行比较来确定频率误差。自动频率控制包括至少一个频率可调的本地振荡器（55），其基于频率误差调整本地振荡器，使得接收机中频道频率与接收机信号之间的频率差可以忽略，从而大致对准所接收的信号在带宽内的宽带频率采集模式。窄带解调模式（27）包括窄信道滤波器，其相对于宽带频率获取模式使接收机信道的带宽变窄，维持大致相同的接收机中信道频率。解调器（35）以窄带解调模式解调接收信号。

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