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16 条记录 (耗时 0.027 秒)

    Apparatus and method for transmitter phase shift compensation
    2.
    发明申请
    Apparatus and method for transmitter phase shift compensation 有权
    发射机相移补偿的装置和方法

    公开(公告)号：US20050032483A1

    公开(公告)日：2005-02-10

    申请号：US10634248

    申请日：2003-08-05

    申请人： Armin Klomsdorf ,  Dale Schwent ,  Robert Trocke

    发明人： Armin Klomsdorf ,  Dale Schwent ,  Robert Trocke

    IPC分类号： H04B1/04 ,  H04L27/20 ,  H04L27/36 ,  H03M1/00

    CPC分类号： H04B1/0475 ,  H04B2001/0416 ,  H04L27/20 ,  H04L27/367

    摘要： A transmitter circuit (10) includes a phase shifter (20) that receives phase shift compensation and timing data (40), and an amplifier (30) that receives a control signal (70) to initiate an efficiency enhancement technique. The phase shifter (20) receives the phase shift compensation and timing data (40), and the amplifier (30) receives the control signal (70) at a pre-defined relative time such that the compensation phase shift by the phase shifter (20) compensates for a pre-determined phase change in the amplifier (30) to produce an RF output signal (80) with a reduced predicted phase change.

    摘要翻译： 发射机电路（10）包括接收相移补偿和定时数据（40）的移相器（20）和接收控制信号（70）以启动效率增强技术的放大器（30）。 移相器（20）接收相移补偿和定时数据（40），并且放大器（30）以预定的相对时间接收控制信号（70），使得由移相器（20）的补偿相移 ）补偿放大器（30）中的预定相位变化，以产生具有减小的预测相位变化的RF输出信号（80）。

    Signal configuration based transmitter adjustment in wireless communication devices
    3.
    发明申请
    Signal configuration based transmitter adjustment in wireless communication devices 有权
    基于信号配置的无线通信设备中的发射机调整

    公开(公告)号：US20060068830A1

    公开(公告)日：2006-03-30

    申请号：US10954583

    申请日：2004-09-30

    申请人： Armin Klomsdorf ,  Robert Love ,  Ernest Schirmann ,  Dale Schwent

    发明人： Armin Klomsdorf ,  Robert Love ,  Ernest Schirmann ,  Dale Schwent

    IPC分类号： H04Q7/20

    CPC分类号： H04W52/367 ,  H03F1/0211 ,  H03F1/0244 ,  H03F1/0261 ,  H04B2001/0416 ,  H04B2201/70706 ,  H04B2201/70707

    摘要： A method in a wireless communication transmitter including a baseband processor (310) that dynamically configures the transmitter for a particular signal configuration, and a headroom controller (350) for adjusting transmitter headroom based on the particular signal configuration. In one embodiment, the PA headroom is controlled based on a power metric, for example, a 3rd order polynomial or peak to average ratio (PAR) metric, that is a function of the signal configuration. In another embodiment the PA headroom is adjusted using information in a look up table.

    摘要翻译： 一种无线通信发射机中的方法，包括基于特定信号配置动态配置发射机的基带处理器（310）和用于基于特定信号配置来调整发射机余量的裕量控制器（350）。 在一个实施例中，基于诸如信号配置的函数的功率度量，例如3阶多项式或峰值平均比（PAR）度量来控制PA余量。 在另一个实施例中，使用查找表中的信息来调整PA净空。

    Radio frequency coupler apparatus suitable for use in a multi-band wireless communication device
    4.
    发明授权
    Radio frequency coupler apparatus suitable for use in a multi-band wireless communication device 失效
    适用于多频带无线通信设备的射频耦合器装置

    公开(公告)号：US06496708B1

    公开(公告)日：2002-12-17

    申请号：US09396384

    申请日：1999-09-15

    申请人： Yiu K. Chan ,  Dale Schwent ,  Michael Landherr ,  Armin Klomsdorf ,  Michael Hand

    发明人： Yiu K. Chan ,  Dale Schwent ,  Michael Landherr ,  Armin Klomsdorf ,  Michael Hand

    IPC分类号： H04B138

    CPC分类号： H03H7/461 ,  H04B1/00 ,  H04B1/04 ,  H04B1/0458 ,  H04B1/406

    摘要： A radio frequency (RF) coupler apparatus (312) suited for use in a multi-band wireless communication device (200), has a termination device (316) and couplers (314 and 315). Each of the couplers (314 and 315) has through-path coupling elements (318 and 320) and coupled-path coupling elements (319 and 321). Through-path coupling elements (318 and 320) pass a RF signal that is to be transmitted respective frequency bands (TX BAND 1, TX BAND 2) within which the device (200) operates. Coupled-path coupling elements (319 and 321) couple the RF signals passed by respective through-path coupling elements (318 and 320). The coupled-path coupling elements (319 and 321) and the termination device (316) are coupled in series, thereby permitting compatibilty with a RF power detector (313) that uses a single detection diode (322).

    摘要翻译： 适用于多频带无线通信设备（200）的射频（RF）耦合器设备（312）具有终端设备（316）和耦合器（314和315）。 每个耦合器（314和315）具有通路耦合元件（318和320）和耦合通路耦合元件（319和321）。 通路耦合元件（318和320）通过要发送的器件（200）工作的相应频带（TXBAND1，TXBAND2）的RF信号。 耦合路径耦合元件（319和321）耦合由相应的通路耦合元件（318和320）通过的RF信号。 耦合通路耦合元件（319和321）和端接装置（316）串联耦合，从而允许与使用单个检测二极管（322）的RF功率检测器（313）兼容。

    Multi-state load switched power amplifier for polar modulation transmitter
    5.
    发明申请
    Multi-state load switched power amplifier for polar modulation transmitter 有权
    用于极性调制发射机的多状态负载开关功率放大器

    公开(公告)号：US20060145758A1

    公开(公告)日：2006-07-06

    申请号：US11026444

    申请日：2004-12-30

    申请人： Armin Klomsdorf ,  Greg Black ,  Dale Schwent

    发明人： Armin Klomsdorf ,  Greg Black ,  Dale Schwent

    IPC分类号： H03G3/20

    CPC分类号： H03F1/56 ,  H03F1/02 ,  H03F1/0261 ,  H03F1/30 ,  H03F2200/387

    摘要： A polar modulation power amplifier circuit includes a control circuit (101) to determine and provide a load selection signal (127), wherein the load selection signal (127) is determined responsive to a requested power signal (119). A power amplifier (113) is responsive to a power control signal (141), for amplifying an RF signal (139) to produce an amplified signal (145), having an output power level. A variable impedance matching circuit (117) is responsive to the load selection signal (127), to adjust a relationship between the control level and the output power level, to produce a range-adjusted amplified signal (147).

    摘要翻译： 极坐标调制功率放大器电路包括用于确定并提供负载选择信号（127）的控制电路（101），其中根据所请求的功率信号（119）确定负载选择信号（127）。 功率放大器（113）响应于功率控制信号（141），用于放大RF信号（139）以产生具有输出功率电平的放大信号（145）。 可变阻抗匹配电路（117）响应于负载选择信号（127），以调整控制电平和输出功率电平之间的关系，以产生调节范围的放大信号（147）。

    Multi-mode wireless communication device and method
    8.
    发明申请
    Multi-mode wireless communication device and method 有权
    多模无线通信设备及方法

    公开(公告)号：US20070047625A1

    公开(公告)日：2007-03-01

    申请号：US11216880

    申请日：2005-08-31

    申请人： Armin Klomsdorf ,  Gregory Chance ,  Christopher Kurby ,  Dale Schwent

    发明人： Armin Klomsdorf ,  Gregory Chance ,  Christopher Kurby ,  Dale Schwent

    IPC分类号： H04B1/00

    CPC分类号： H04B1/406 ,  H04B1/1027 ,  H04B1/707

    摘要： A multimode wireless communication device capable of communicating pursuant to first and second communication protocols, including a method wherein a determination is made (530) as to whether a harmonic generated during transmission in one protocol interferes with reception in another protocol, and wherein transmission is suspended while receiving only if a harmonic generated during transmission interferes with reception. In some embodiments, the transmitter is temporarily operated in compressed mode to enable the suspension.

    摘要翻译： 一种能够根据第一和第二通信协议通信的多模无线通信设备，包括其中确定（530）关于在一个协议中的传输期间产生的谐波是否干扰另一个协议中的接收的方法，并且其中传输被暂停的方法 而只有传输过程中产生的谐波干扰接收。 在一些实施例中，发射机以压缩模式临时操作以使得能够进行暂停。

    Method and apparatus for dual mode power control
    9.
    发明申请
    Method and apparatus for dual mode power control 有权

    公开(公告)号：US20060046763A1

    公开(公告)日：2006-03-02

    申请号：US10929614

    申请日：2004-08-30

    申请人： Dale Schwent ,  Mark Kirschenmann ,  Robert Trocke

    发明人： Dale Schwent ,  Mark Kirschenmann ,  Robert Trocke

    IPC分类号： H04B7/00 ,  H04Q7/20 ,  H04M1/00 ,  H04B1/38

    CPC分类号： H04W52/52 ,  H03G3/3047 ,  H04B2001/0416

    摘要： An apparatus and method for dual mode power control. A transmitter is capable of operating in a first mode of operation and a second mode of operation, the first mode of operation and the second mode of operation including a closed loop control mode and an open loop control mode, the first mode of operation being different from the second mode of operation. The transmitter can be operated in the first mode of operation. A transmitter output power characteristic of the first mode of operation can be read back. The transmitter output power characteristic of the first mode of operation can be correlated to a transmitter output power characteristic of the second mode of operation. The first mode of operation can be switched to the second mode of operation based on the transmitter output power characteristic of the second mode of operation.

    Method and apparatus for transmit power calibration in a frequency division multiplexed wireless system
    10.
    发明授权
    Method and apparatus for transmit power calibration in a frequency division multiplexed wireless system 有权
    用于频分复用无线系统中发射功率校准的方法和装置

    公开(公告)号：US08140102B2

    公开(公告)日：2012-03-20

    申请号：US11838517

    申请日：2007-08-14

    申请人： Ravikiran Nory ,  Edgar Fernandes ,  Robert Love ,  Vijay Nangia ,  Dale Schwent ,  Kenneth A. Stewart

    发明人： Ravikiran Nory ,  Edgar Fernandes ,  Robert Love ,  Vijay Nangia ,  Dale Schwent ,  Kenneth A. Stewart

    IPC分类号： H04B7/00 ,  H04B7/185 ,  H04W24/00 ,  H04W4/00 ,  H04J1/00 ,  H04K1/10

    CPC分类号： H04W52/08 ,  H04B17/13 ,  H04W52/146 ,  H04W52/16 ,  H04W52/50

    摘要： The present disclosure describes a method and apparatus for transmit power calibration in a frequency division multiplexed wireless system (100). The method may include receiving (320), at a user equipment (120), a signal from a base station (130) in a frequency division multiplexed wireless system and mapping (330), in response to receiving the signal from the base station, a power control calibration region to an uplink symbol in a subframe to establish a mapped uplink symbol using predetermined criteria. The method can also include calibrating (350) a transmit power based on transmission in the calibration region and transmitting (360) data at the calibrated transmit power on at least one other symbol following the mapped uplink symbol.

    摘要翻译： 本公开描述了一种用于频分复用无线系统（100）中的发射功率校准的方法和装置。 该方法可以包括在用户设备（120）处接收（320）来自频分复用无线系统中的来自基站（130）的信号和响应于接收到来自基站的信号的映射（330） 功率控制校准区域到子帧中的上行链路符号，以使用预定标准建立映射的上行链路符号。 该方法还可以包括基于校准区域中的传输来校准（350）发射功率，并且在所映射的上行链路符号之后的至少一个其他符号上以校准的发射功率发射（360）数据。