ADAPTIVE CARTESIAN LOOP TRANSMITTER FOR BROADBAND AND OPTIMAL LOOP STABILITY ADJUSTMENT
    1.
    发明申请
    ADAPTIVE CARTESIAN LOOP TRANSMITTER FOR BROADBAND AND OPTIMAL LOOP STABILITY ADJUSTMENT 审中-公开
    适用于宽带的适应性卡特彼勒环路发送器和最佳环路稳定性调整

    公开(公告)号:WO2010068604A3

    公开(公告)日:2010-10-21

    申请号:PCT/US2009067051

    申请日:2009-12-08

    Abstract: An integrated circuit includes a linearizer circuit in which excessive delay is compensated. The linearizer circuit includes a power amplifier, forward and feedback paths, and a microprocessor. A signal from the power amplifier is routed by the forward path to be transmitted while a portion of the signal to be transmitted is routed back to the power amplifier via the feedback path. The microprocessor applies phase training signals to the forward path. The microprocessor uses the phase training signals to determine the amount of delay in the linearizer circuit and alters the frequency position of poles and zeros in the linearizer circuit to compensate for the delay. The gain of the linearizer circuit is also altered by the microprocessor depending on the measured delay.

    Abstract translation: 集成电路包括其中补偿过度延迟的线性化电路。 线性化电路包括功率放大器,正向和反馈路径以及微处理器。 来自功率放大器的信号由正向路径路由被发送,而待传输的信号的一部分经由反馈路径被路由回功率放大器。 微处理器向前向路径施加相位训练信号。 微处理器使用相位训练信号来确定线性化电路中的延迟量,并改变线性化电路中的极点和零点的频率位置以补偿延迟。 线性化电路的增益也由微处理器根据测量的延迟而改变。

    IQ PHASE IMBALANCE CORRECTION METHOD IN CARTESIAN LINEARIZATION FEEDBACK PATH WITH DUAL PHASE SHIFTERS
    3.
    发明申请
    IQ PHASE IMBALANCE CORRECTION METHOD IN CARTESIAN LINEARIZATION FEEDBACK PATH WITH DUAL PHASE SHIFTERS 审中-公开
    智能相位校正方法在智能线性化反馈路径与双相位移

    公开(公告)号:WO2010117582A2

    公开(公告)日:2010-10-14

    申请号:PCT/US2010027744

    申请日:2010-03-18

    Abstract: A communication device, transmitter, and system containing dual quadrature phase shifters and method of training the transmitter are provided. During training, a phase training module determines the phase imbalance in each of in-phase and quadrature Cartesian feedback paths. The phase training module provides control signals to each of in-phase and quadrature dual phase shifters to provide separate and independent phase corrections for the paths. During one training cycle, individual sessions are used to train the in-phase and quadrature dual phase shifters. The latter session uses the results of the former session to provide an initial value for the phase shift to be provided as a result of the latter session, thereby reducing the overall time used to train both the in-phase and quadrature dual phase shifters.

    Abstract translation: 提供了包含双正交移相器的通信设备,发射机和系统以及训练发射机的方法。 在训练期间,相位训练模块确定每个同相和正交笛卡尔反馈路径中的相位不平衡。 相位训练模块向每个同相和正交双相移器提供控制信号,以为路径提供单独和独立的相位校正。 在一个训练周期中,单个会话用于训练同相和正交双相移器。 后一会话使用前一会话的结果来提供作为后一会话的结果提供的相移的初始值,从而减少用于训练同相和正交双相移器的总时间。

    LINEAR RF TRANSMITTER AND METHOD OF OPERATION
    4.
    发明申请
    LINEAR RF TRANSMITTER AND METHOD OF OPERATION 审中-公开
    线性RF发射器和操作方法

    公开(公告)号:WO2007059484A2

    公开(公告)日:2007-05-24

    申请号:PCT/US2006060866

    申请日:2006-11-14

    Abstract: A linear RF transmitter (100) includes a forward path (102, 105, 107) for receiving and processing a baseband input signal, the forward path including an upconverting mixer (120, 122) operable to convert a baseband signal into a modulated RF signal, and a RF (radio frequency) power amplifier (126) operable to amplify a modulated RF signal produced by the mixer, a non-linearity detector (125) connected to the forward path to sample a baseband signal for delivery to the mixer and operable to detect non-linearity of the transmitter and to provide in response a control signal to change operation of the transmitter to reduce the non-linearity, and characterised in that the transmitter further includes a regulator (111) connectible to a supply voltage source (113) and to the RF power amplifier to deliver a variable supply voltage (VS) to the RF power amplifier and a controller (127) operable to produce a control signal which controls adjustment by the regulator (111) of the supply voltage, wherein the non-linearity detector is connected to the controller and is operable upon detecting non-linearity to deliver a control signal to the controller which causes the controller to adjust the regulator to increase the supply voltage. Also described is a method of operation (200) in the transmitter.

    Abstract translation: 线性RF发射器(100)包括用于接收和处理基带输入信号的正向路径(102,105,107),所述前向路径包括上变频混频器(120,122),可操作以将基带信号转换成调制的RF信号 ,以及RF(射频)功率放大器(126),其可操作以放大由混频器产生的调制的RF信号;非线性检测器(125),连接到前向路径以采样基带信号以传送到混频器并且可操作 以检测发射机的非线性并且响应地提供控制信号以改变发射器的操作以减小非线性,并且其特征在于,所述发射机还包括可连接到电源电压源(113)的调节器(111) )和所述RF功率放大器以向所述RF功率放大器传送可变电源电压(VS);以及控制器(127),其可操作以产生控制信号,所述控制信号控制所述调节器(111)对所述电源电压的调节,w 这里,非线性检测器连接到控制器,并且在检测到非线性时可操作以将控制信号传送到控制器,这使得控制器调节调节器以增加电源电压。 还描述了发射机中的操作方法(200)。

    ANTENNA ARRANGEMENT
    5.
    发明申请
    ANTENNA ARRANGEMENT 审中-公开
    天线安排

    公开(公告)号:WO2007121063B1

    公开(公告)日:2008-12-11

    申请号:PCT/US2007065424

    申请日:2007-03-29

    Abstract: An antenna arrangement (1000) for use in an RF communication terminal including a plurality of resonators (1003, 1005, 1007, 1009) formed from a plurality of conducting wires (1002, 1004, 1008, 1010, 1012) the resonators being operable to provide radio frequency resonances in at least two different operational frequency bands (VHF, UHF, 700/800 MHz, GPS ranges) the wires being mutually adjacent and at least three of the wires having different lengths, and a plurality of radio frequency feed channels (113, 115, 117, 119) each being operably connected to an associated one of the resonators to deliver an RF signal between that resonator and an associated radio.

    Abstract translation: 一种用于包括由多根导线(1002,1004,1008,1010,1012)形成的多个谐振器(1003,1005,1007,1009)的RF通信终端中的天线装置(1000),所述谐振器可操作用于 在至少两个不同的操作频带(VHF,UHF,700 / 800MHz,GPS范围)中提供射频共振,所述导线彼此相邻,并且所述导线中的至少三个具有不同的长度,以及多个射频馈送通道 它们各自可操作地连接到谐振器中相关联的一个谐振器,以在谐振器和相关无线电之间传送RF信号。

    A TERMINAL FOR USE IN A WIRELESS COMMUNICATION SYSTEM AND A METHOD OF OPERATION THEREOF
    6.
    发明申请
    A TERMINAL FOR USE IN A WIRELESS COMMUNICATION SYSTEM AND A METHOD OF OPERATION THEREOF 审中-公开
    用于无线通信系统的终端及其操作方法

    公开(公告)号:WO2007103904A3

    公开(公告)日:2008-02-21

    申请号:PCT/US2007063356

    申请日:2007-03-06

    Abstract: A terminal (200) and method for operation thereof for use in a wireless communication system (100), the terminal including a plurality of antennas (215, 235, 255) and a plurality of receiver chains (217, 237, 257) each including an associated one of the antennas, the terminal being operable to receive a signal including a plurality of time divided portions including a first portion (303) and a second portion (304), characterised in that the terminal is operable in a manner such each of the plurality of receiver chains is active when the first portion of the signal is being received and at least one of the receiver chains is inactive when the second portion of the signal is being received.

    Abstract translation: 一种在无线通信系统(100)中使用的终端(200)及其操作方法,所述终端包括多个天线(215,235,255)和多个接收机链(217,237,257),每个接收机链包括 相关联的一个天线,终端可操作以接收包括多个时分分割部分的信号,包括第一部分(303)和第二部分(304),其特征在于,终端可以以这样的方式操作: 当正在接收信号的第一部分时,多个接收机链是有效的,并且当正在接收信号的第二部分时,接收机链中的至少一个处于非活动状态。

    8.
    发明专利
    未知

    公开(公告)号:AT443941T

    公开(公告)日:2009-10-15

    申请号:AT04741499

    申请日:2004-04-30

    Applicant: MOTOROLA INC

    Abstract: In accordance with the present invention there is those provided a Cartesian loop transmitter having an isolator eliminator circuitry comprising a set of low pass and band pass filters for each of an I- and Q-channels, root mean square detectors and a divider connected to a comparator are received by a microprocessor which controls attenuation setting. There is also provided a method of adjusting an output level of such transmitter. Said method comprises the step of measuring an on-channel signal level and a noise level and then calculating a ratio of said noise to said on-channel signal. If the ratio exceeds a defined threshold an attenuation of the input attenuators is increased.

    Wireless communication unit, linearised transmitter circuit and method of linearising therein

    公开(公告)号:GB2458624A

    公开(公告)日:2009-09-30

    申请号:GB0913951

    申请日:2007-11-01

    Applicant: MOTOROLA INC

    Abstract: A wireless communication unit (300) comprises a frequency generation circuit, and a linearised transmitter (325) operably coupled to the frequency generation circuit and having a forward path for routing a signal to be transmitted; and a feedback path, operably coupled to a power amplifier (324) and the forward path for feeding back a portion of the signal to be transmitted. The feedback path and forward path form two loops in quadrature. The frequency generation circuit comprises independent phase shift elements arranged to independently phase shift the two loops in quadrature ('I' and 'Q').

    10.
    发明专利
    未知

    公开(公告)号:AT438951T

    公开(公告)日:2009-08-15

    申请号:AT04741619

    申请日:2004-05-20

    Applicant: MOTOROLA INC

    Abstract: A Cartesian loop transmitter having isolator eliminator circuitry is presented. The isolator eliminator circuitry includes a set of low pass and wide band pass as well as narrow band pass filters for each of I- and Q-channels, root mean square detectors and dividers connected to a means for comparing. Signals from the means for comparing are received by a microprocessor which controls attenuation setting. The output level of the transmitter is adjusted by generating a small signal measuring an on-channel signal level and a small signal level and then calculating a ratio of the small signal to the on-channel signal. The attenuation setting is increased if the ratio exceeds a defined threshold.

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