公开(公告)号：US20070014382A1

公开(公告)日：2007-01-18

申请号：US11182521

申请日：2005-07-15

申请人： Niall Shakeshaft ,  Esko Jarvinen ,  Marko Alanen ,  Vlad Grigore ,  Jorma Matero ,  Jarkko Kesti

发明人： Niall Shakeshaft ,  Esko Jarvinen ,  Marko Alanen ,  Vlad Grigore ,  Jorma Matero ,  Jarkko Kesti

IPC分类号： H04L27/00 ,  H04L25/03 ,  H04L25/49 ,  H04K1/02

CPC分类号： H03F1/0277 ,  H03F1/0233 ,  H03F1/0261 ,  H03F2200/331

摘要： A transmission device and method are shown, wherein an amplification is implemented which can be changed between a switched operation mode and linear operation mode as desired, depending on which mode of operation best meets the needs of the radio system in use. This opens the possibility of using the same hardware for different systems.

摘要翻译： 示出了传输装置和方法，其中根据所采用的操作模式最佳地满足使用中的无线电系统的需要，实现可以在切换操作模式和线性操作模式之间改变放大。 这样可以为不同的系统使用相同的硬件。

公开(公告)号：US20060178119A1

公开(公告)日：2006-08-10

申请号：US11055133

申请日：2005-02-09

申请人： Esko Jarvinen

发明人： Esko Jarvinen

IPC分类号： H03F3/38 ,  H04B1/04 ,  H01Q11/12

CPC分类号： H03C5/00 ,  H03F1/0205 ,  H03F1/0211 ,  H03F1/0227 ,  H03F1/32 ,  H03F3/24 ,  H03F2200/324 ,  H03F2200/351 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/511 ,  H04B1/0067 ,  H04L27/0008 ,  H04L27/361

摘要： A RF transmitter has at least one amplifier having an input terminal for receiving a phase modulated signal to be transmitted on an RF carrier and an input node for receiving a modulation signal for amplitude modulating the RF carrier. The RF transmitter further includes an amplitude modulator having an output coupled to the input node of the power amplifier through a low-pass filter. The low-pass filter includes at least one variable filter component for varying a bandwidth of the low-pass filter. In a preferred embodiment an envelope elimination and restoration (EER) RF transmitter includes at least one power RF amplifier having the input terminal for receiving the phase modulated signal to be transmitted on the RF carrier, and further including an input power node for receiving a modulated voltage for amplitude modulating the RF carrier. The EER RF transmitter further includes a class-S modulator having a variable bandwidth low-pass filter having an output coupled to the input power node and including at least one first variable capacitance.

摘要翻译： RF发射机具有至少一个放大器，其具有用于接收在RF载波上传输的相位调制信号的输入端子和用于接收用于幅度调制RF载波的调制信号的输入节点。 RF发射机还包括幅度调制器，其具有通过低通滤波器耦合到功率放大器的输入节点的输出。 低通滤波器包括用于改变低通滤波器的带宽的至少一个可变滤波器组件。 在优选实施例中，包络消除和恢复（EER）RF发射器包括至少一个功率RF放大器，其具有用于接收要在RF载波上传输的相位调制信号的输入端，并且还包括输入功率节点，用于接收调制 用于幅度调制RF载波的电压。 EER RF发射机还包括具有可变带宽低通滤波器的S类调制器，该可变带宽低通滤波器具有耦合到输入功率节点并包括至少一个第一可变电容的输出。

公开(公告)号：US20060178121A1

公开(公告)日：2006-08-10

申请号：US10547240

申请日：2004-02-25

申请人： Miikka Hamalainen ,  Esko Jarvinen

发明人： Miikka Hamalainen ,  Esko Jarvinen

IPC分类号： H04B1/04 ,  H01Q11/12

CPC分类号： H03F1/0261 ,  H03F1/0205 ,  H03F1/0227 ,  H03F1/32 ,  H03F3/24 ,  H03F2201/3203 ,  H03G3/004

摘要： A method and a device for tuning power amplifier (PA, 203) properties such as back-off. A peak-to-average value (PAR) of the amplifier input signal is first obtained by control means (206) and then used for adjusting the power amplifier (203) with tuning means (204, 208, 210) functionally connected to the amplifier (203). The suggested solution is advantageously exploited in a wireless communications device like a mobile terminal to optimize the performance thereof by, for example, reducing the power dissipation in the transmitter.

摘要翻译： 一种用于调谐功率放大器（PA，203）属性（如退避）的方法和装置。 放大器输入信号的峰值平均值（PAR）首先由控制装置（206）获得，然后用于通过功能上连接到放大器的调谐装置（204,208,210）来调节功率放大器（203） （203）。 所提出的解决方案有利地被利用在诸如移动终端的无线通信设备中，以通过例如降低发射机中的功率消耗来优化其性能。

公开(公告)号：US20060133633A1

公开(公告)日：2006-06-22

申请号：US11015518

申请日：2004-12-17

申请人： Lassi Hyvonen ,  Esko Jarvinen

发明人： Lassi Hyvonen ,  Esko Jarvinen

IPC分类号： H04R25/00

CPC分类号： H04R25/558

摘要： A mobile telephone including a hearing aid compatible system for coupling an output of the mobile telephone to a hearing aid device of a user; and a metal detector system adapted to detect a metal object brought into proximity relative to the mobile telephone.

摘要翻译： 一种移动电话，包括用于将移动电话的输出耦合到用户的助听器装置的助听器兼容系统; 以及适于检测相对于移动电话接近的金属物体的金属探测器系统。

公开(公告)号：US07512386B2

公开(公告)日：2009-03-31

申请号：US10651910

申请日：2003-08-29

申请人： Sami Kalajo ,  Esko Jarvinen ,  Ville Vintola ,  Frank Anthony Tamborino ,  William Sheridan Kopp

发明人： Sami Kalajo ,  Esko Jarvinen ,  Ville Vintola ,  Frank Anthony Tamborino ,  William Sheridan Kopp

IPC分类号： H04B1/04 ,  H04B17/00 ,  H03C1/62 ,  H01Q11/12

CPC分类号： H03F1/56 ,  H03F1/0261 ,  H03F1/0272 ,  H03F3/191 ,  H03F3/24 ,  H03F2200/207 ,  H03F2200/321 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2200/462 ,  H03F2200/471 ,  H03F2200/99 ,  H03H7/40 ,  H03H11/30 ,  H04B1/0458

摘要： An RF power amplifier module can be used without a matching device between the power amplifier module and an antenna. The power amplifier module is constructed and operated to detect, protect and maintain the performance of the power amplifier in the presence of severe VSWR load mismatches, without requiring the use of external circuitry. The RF power amplifier module includes integral detection circuitry for generating a first detection signal having a value that is indicative of the current flowing through an output power transistor and a second detection signal having a value that is indicative the voltage appearing at the output of the output power transistor, as well as integral compensation circuitry for controlling the generation of a plurality of bias current and bias voltage signals to have values that are a function of the values of the first and second detection signals, as well as the current output power level of the RF power amplifier module. Also included is an integral impedance matching circuit, coupled between the output of the output transistor and the output node, that provides a variable impedance that is selectively controlled by an output signal from the compensation circuitry.

摘要翻译： RF功率放大器模块可以在功率放大器模块和天线之间没有匹配装置的情况下使用。 功率放大器模块被构造和操作以在存在严重的VSWR负载不匹配的情况下检测，保护和维持功率放大器的性能，而不需要使用外部电路。 RF功率放大器模块包括积分检测电路，用于产生具有指示流过输出功率晶体管的电流的值的第一检测信号和具有指示出现在输出端的输出端的电压的值的第二检测信号 功率晶体管，以及用于控制多个偏置电流和偏置电压信号的产生的积分补偿电路，以具有作为第一和第二检测信号的值的函数的值以及当前的输出功率电平 RF功率放大器模块。 还包括一个积分阻抗匹配电路，耦合在输出晶体管和输出节点的输出端之间，其提供由来自补偿电路的输出信号选择性控制的可变阻抗。

公开(公告)号：US20080248822A1

公开(公告)日：2008-10-09

申请号：US11808904

申请日：2007-06-13

申请人： Esko Jarvinen ,  Lassi Hyvonen

发明人： Esko Jarvinen ,  Lassi Hyvonen

IPC分类号： H04Q7/20 ,  H04B1/10 ,  H04B15/00 ,  H04B17/00

CPC分类号： H04W64/00 ,  H04L1/0001 ,  H04W24/08 ,  H04W72/048

摘要： A method for managing transmission conditions in a mobile telecommunication system according to movement of a mobile terminal is provided. The mobile terminal is having a communication link with a base station. The movement of the mobile terminal is monitored, and then a database is checked for the most optimal transmission conditions for the monitored movement of the mobile terminal, and action is taken to change the transmission conditions of the communication link upon detecting, in the database, transmission conditions providing a more optimal communication link for the current movement of the mobile terminal than the transmission conditions currently being used for the communication link.

摘要翻译： 提供了一种根据移动终端的移动来管理移动电信系统中的传输条件的方法。 移动终端具有与基站的通信链路。 监视移动终端的移动，然后检查数据库以获得移动终端监视的移动的最佳传输条件，并且在数据库中检测到采取动作来改变通信链路的传输条件， 传输条件为当前用于通信链路的传输条件提供了用于移动终端的当前移动的更优化的通信链路。

公开(公告)号：US20050059362A1

公开(公告)日：2005-03-17

申请号：US10651910

申请日：2003-08-29

申请人： Sami Kalajo ,  Esko Jarvinen ,  Ville Vintola ,  Frank Tamborino ,  William Kopp

发明人： Sami Kalajo ,  Esko Jarvinen ,  Ville Vintola ,  Frank Tamborino ,  William Kopp

IPC分类号： H01Q11/12 ,  H03C1/62 ,  H03F20060101 ,  H03F1/02 ,  H03F1/56 ,  H03F3/191 ,  H03F3/24 ,  H03H7/40 ,  H03H11/30 ,  H04B1/04 ,  H04B17/00

CPC分类号： H03F1/56 ,  H03F1/0261 ,  H03F1/0272 ,  H03F3/191 ,  H03F3/24 ,  H03F2200/207 ,  H03F2200/321 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2200/462 ,  H03F2200/471 ,  H03F2200/99 ,  H03H7/40 ,  H03H11/30 ,  H04B1/0458

摘要： An RF power amplifier module can be used without a matching device between the power amplifier module and an antenna. The power amplifier module is constructed and operated to detect, protect and maintain the performance of the power amplifier in the presence of severe VSWR load mismatches, without requiring the use of external circuitry. The RF power amplifier module includes integral detection circuitry for generating a first detection signal having a value that is indicative of the current flowing through an output power transistor and a second detection signal having a value that is indicative the voltage appearing at the output of the output power transistor, as well as integral compensation circuitry for controlling the generation of a plurality of bias current and bias voltage signals to have values that are a function of the values of the first and second detection signals, as well as the current output power level of the RF power amplifier module. Also included is an integral impedance matching circuit, coupled between the output of the output transistor and the output node, that provides a variable impedance that is selectively controlled by an output signal from the compensation circuitry.

摘要翻译： RF功率放大器模块可以在功率放大器模块和天线之间没有匹配装置的情况下使用。 功率放大器模块被构造和操作以在存在严重的VSWR负载不匹配的情况下检测，保护和维持功率放大器的性能，而不需要使用外部电路。 RF功率放大器模块包括积分检测电路，用于产生具有指示流过输出功率晶体管的电流的值的第一检测信号和具有指示出现在输出端的输出端的电压的值的第二检测信号 功率晶体管，以及用于控制多个偏置电流和偏置电压信号的产生的积分补偿电路，以具有作为第一和第二检测信号的值的函数的值以及当前的输出功率电平 RF功率放大器模块。 还包括一个积分阻抗匹配电路，耦合在输出晶体管和输出节点的输出端之间，其提供由来自补偿电路的输出信号选择性控制的可变阻抗。

公开(公告)号：US6052032A

公开(公告)日：2000-04-18

申请号：US265273

申请日：1999-03-09

申请人： Esko Jarvinen

发明人： Esko Jarvinen

IPC分类号： H03F1/30 ,  H03F3/19 ,  H03F3/04

CPC分类号： H03F3/19 ,  H03F1/302 ,  H03F2200/366 ,  H03F2200/504 ,  H03F2203/21131

摘要： A radio frequency amplifier having a power transistor (Q1) to the base of which is coupled a radio frequency signal to be amplified. An amplified radio frequency signal is provided at the collector of the power transistor (Q1). A control transistor (Qc) has its base coupled to the base of the power transistor (Q1) while a driver transistor (Q2) provides a control bias signal to the bases of the control and power transistors. A differential amplifier (Qd1, Qd2) has a first input coupled to an input bias signal and an output coupled to the base of the driver transistor (Q2). The collector of the control transistor (Qc) is coupled to a second input of the differential amplifier to provide a negative feedback signal to the differential amplifier and the driver transistor (Q2) and thereby to stabilise the operating point of the power transistor (Q1).

摘要翻译： 一种具有功率晶体管（Q1）的射频放大器，其基极耦合有待放大的射频信号。 在功率晶体管（Q1）的集电极处提供放大的射频信号。 控制晶体管（Qc）的基极耦合到功率晶体管（Q1）的基极，而驱动晶体管（Q2）向控制和功率晶体管的基极提供控制偏置信号。 差分放大器（Qd1，Qd2）具有耦合到输入偏置信号的第一输入和耦合到驱动晶体管（Q2）的基极的输出。 控制晶体管（Qc）的集电极耦合到差分放大器的第二输入，以向差分放大器和驱动晶体管（Q2）提供负反馈信号，从而稳定功率晶体管（Q1）的工作点， 。