公开(公告)号：WO2007018803A3

公开(公告)日：2007-11-01

申请号：PCT/US2006025134

申请日：2006-06-28

Applicant: MOTOROLA INC ,  FRIEDLANDER HAIM ,  BASRI ELIYAHU ,  SHIRAZI GADI

Inventor： FRIEDLANDER HAIM ,  BASRI ELIYAHU ,  SHIRAZI GADI

IPC: H04B1/44 ,  H03C7/02 ,  H04B1/48 ,  H04B7/06 ,  H04B7/08 ,  H04B7/185 ,  H04Q3/02

CPC classification number: H04B1/48 ,  H04B7/0602 ,  H04B7/0805 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/40 ,  Y02D70/444

Abstract: An antenna diversity arrangement for use with an RF transceiver including: a first antenna (113), a second antenna (115), and a first T/R switching device (209) for coupling the first antenna alternatively to a transmitter connection (202) and a receiver connection (206). A selection switching device is provided for alternatively coupling the first antenna and the second antenna to a receiver connection. The arrangement includes a second T/R switching device (213) for coupling the second antenna (115) alternatively to a transmitter connection (101) and a receiver connection (208)and the selection switching device (211) is operable to couple alternatively (i) the first antenna (113) via the first T/R switching device (209); and (ii) the second antenna (115) via the second T/R switching device (213); to a common receiver connection (210).

Abstract translation: 一种与RF收发器一起使用的天线分集装置，包括：第一天线（113），第二天线（115）和用于将第一天线交替地耦合到发射机连接（202）的第一T / R开关装置（209） 和接收机连接（206）。 选择开关装置被提供用于交替地将第一天线和第二天线耦合到接收器连接。 该装置包括用于将第二天线（115）交替地耦合到发射机连接（101）和接收机连接（208）的第二T / R切换设备（213），并且选择切换设备（211）可操作以交替地耦合 i）经由所述第一T / R切换装置（209）的所述第一天线（113）; 和（ii）经由第二T / R切换装置（213）的第二天线（115）; 到公共接收机连接（210）。

公开(公告)号：WO2005107076B1

公开(公告)日：2006-02-23

申请号：PCT/US2005013207

申请日：2005-04-19

Applicant: MOTOROLA INC ,  LUZZATTO ARIEL ,  FRIEDLANDER HAIM ,  SHIRAZI GADI

Inventor： LUZZATTO ARIEL ,  FRIEDLANDER HAIM ,  SHIRAZI GADI

IPC: H03L7/087 ,  H03L7/113 ,  H03L7/18 ,  H03L7/185 ,  H03L7/20

CPC classification number: H03L7/185 ,  H03L2207/12

Abstract: A frequency synthesiser circuit for use in wireless communications including a phase locked loop including a VCO (voltage controlled oscillator), wherein the synthesiser circuit includes a further oscillator which in operation is a free running oscillator at a frequency higher than the VCO and a mixer connected to receive input signals from the VCO and from the further oscillator and to combine such signals. Also described is a wireless communications transmitter or receiver incorporating the frequency synthesiser circuit.

Abstract translation: 一种用于包括VCO（压控振荡器）的锁相环的无线通信的频率合成器电路，其中所述合成器电路包括另外的振荡器，所述振荡器在高于VCO的频率下是自由振荡器，并且混频器连接 以从VCO和另外的振荡器接收输入信号并组合这样的信号。 还描述了包含频率合成器电路的无线通信发射机或接收机。

公开(公告)号：WO2007087108A2

公开(公告)日：2007-08-02

申请号：PCT/US2006062378

申请日：2006-12-20

Applicant: MOTOROLA INC ,  NOCHAM GABRIELA D ,  DADOUN DANIEL ,  FRIEDLANDER HAIM

Inventor： NOCHAM GABRIELA D ,  DADOUN DANIEL ,  FRIEDLANDER HAIM

IPC: H04H20/67

CPC classification number: H03F3/189

Abstract: A wireless communication unit (100) comprises a power amplifier (124) having an input port receiving an input signal and an output port to provide an output signal representative of an amplified input signal. A signal processing function (128) is operably coupled to the power amplifier (124) and arranged to derive small signal gain and large signal gain values of the power amplifier (124) by calculating a Cumulative Distribution Function (CDF) or a Complementary Cumulative Distribution Function (CCDF) of the input signal and amplified output signal.

Abstract translation: 无线通信单元（100）包括具有接收输入信号的输入端口和输出端口的功率放大器（124），以提供表示放大的输入信号的输出信号。 信号处理功能（128）可操作地耦合到功率放大器（124），并被布置成通过计算累积分布函数（CDF）或互补累积分布来导出功率放大器（124）的小信号增益和大的信号增益值 功能（CCDF）的输入信号和放大的输出信号。

公开(公告)号：WO2006115879A3

公开(公告)日：2006-12-14

申请号：PCT/US2006014395

申请日：2006-04-18

Applicant: MOTOROLA INC ,  FRIEDLANDER HAIM ,  SHIRAZI GADI

Inventor： FRIEDLANDER HAIM ,  SHIRAZI GADI

IPC: H03F3/04

CPC classification number: H03F3/217 ,  H03F1/0238 ,  H03F2200/504

Abstract: An amplifier circuit including an amplifying device (101) having a first terminal (102) to which an input signal is applicable, a second terminal (104) and a third terminal (103), a voltage source (106) for producing a supply voltage and a regulator (107) for regulating the supply voltage to produce an output voltage for application to the second terminal to cause a direct current to flow through the amplifying device between the second terminal and the third terminal, wherein the amplifier circuit includes means for sampling (112) the direct current flowing between the second terminal and the third terminal and a feedback loop (113) connected from the means for sampling to the regulator to provide a control signal representing the magnitude of the sampled direct current and wherein the regulator is operable to adjust the output voltage to have an envelope form which replicates an envelope form of the control signal.

Abstract translation: 一种放大器电路，包括具有可输入信号的第一端子（102）的放大装置（101），第二端子（104）和第三端子（103），用于产生电源电压的电压源 以及调节器（107），用于调节电源电压以产生用于施加到第二端子的输出电压，以使直流电流流过第二端子和第三端子之间的放大装置，其中放大器电路包括用于采样的装置 （112）在第二端子和第三端子之间流动的直流电流以及从采样装置连接到调节器的反馈回路（113），以提供表示采样直流电流的幅度的控制信号，并且其中调节器可操作 以将输出电压调整为具有复制控制信号的包络形式的信封形式。

公开(公告)号：HK1101651A1

公开(公告)日：2007-10-18

申请号：HK07108613

申请日：2007-08-07

Applicant: MOTOROLA INC

Inventor： FRIEDLANDER HAIM ,  BASRI ELIYAHU ,  SHIRAZI GADI

IPC: H04B20060101 ,  H04B1/48 ,  H04B7/06 ,  H04B7/08

公开(公告)号：GB2425418B

公开(公告)日：2007-09-19

申请号：GB0508049

申请日：2005-04-22

Applicant: MOTOROLA INC

Inventor： FRIEDLANDER HAIM ,  SHIRAZI GADI

IPC: H03F1/02

公开(公告)号：GB2419483A

公开(公告)日：2006-04-26

申请号：GB0420642

申请日：2004-09-17

Applicant: MOTOROLA INC

Inventor： SHIRAZI GADI ,  FRIEDLANDER HAIM ,  LUZATTO ARIEL

IPC: H03D3/00 ,  H04B1/16 ,  H04B1/40 ,  H04L27/152

Abstract: A demodulator 100 for demodulating a frequency modulated RF signal (x(t)), includes an input signal path 101 for delivering an RF input signal, a local oscillator 111. A first mixer 107 is connected to input signal path mixes an output reference signal from the local oscillator 111 with an RF input signal to produce an in-phase component of the input received signal. A phase shifter 113, is connected to the input signal path of a second mixer 109 mixes an output reference signal from the local oscillator via phase shifter 113 with the RF input signal (x(t)) to produce a quadrature component of the RF input signal. An output signal processor 119 produces an output demodulated information signal by producing a function of the in-phase and quadrature components. The demodulator is periodically operable in a quadrature phase error determination mode wherein the reference signals produced by the local oscillator 111 have a frequency which is offset from the carrier frequency of an RF input signal. A RF receiver, method and terminal using the demodulator is also described.

公开(公告)号：CA2562752A1

公开(公告)日：2005-11-10

申请号：CA2562752

申请日：2005-04-19

Applicant: MOTOROLA INC

Inventor： SHIRAZI GADI ,  LUZZATTO ARIEL ,  FRIEDLANDER HAIM

IPC: H03L7/087 ,  H03L7/113 ,  H03L7/18 ,  H03L7/185 ,  H03L7/20

Abstract: A frequency synthesiser circuit for use in wireless communications including a phase locked loop including a VCO (voltage controlled oscillator), wherein t he synthesiser circuit includes a further oscillator which in operation is a fr ee running oscillator at a frequency higher than the VCO and a mixer connected to receive input signals from the VCO and from the further oscillator and to combine such signals. Also described is a wireless communications transmitte r or receiver incorporating the frequency synthesiser circuit.

公开(公告)号：GB2381681A

公开(公告)日：2003-05-07

申请号：GB0126088

申请日：2001-10-31

Applicant: MOTOROLA INC

Inventor： FRIEDLANDER HAIM ,  SHIRAZI GADI ,  BASSAN PERRY

IPC: H03F1/02 ,  H03F1/30 ,  H03F3/189

Abstract: An amplifier circuit for amplifying signals in a radio transmitter comprises an active amplification device and biasing means for applying to the active device a bias voltage or current to be set at a bias point to control operating properties of the active device; and is characterised by a control loop for controllably adjusting the bias point of the bias voltage or current applied by the biasing means, the adjustment loop comprising a detector for measuring a quiescent current in the active device when the bias voltage or current is applied thereto, a comparator for comparing the measured quiescent current value with a desired value and for producing an error control signal based upon the difference and a connection from the comparator to the biasing means for applying an error control signal thereto to adjust the bias point. The amplifier may be useful as a linear RF amplifier for use in a mobile communication unit. The controller 19 may be a DSP or a microcontroller, and the control loop may be activated between TDMA slots. The amplifier may be class B.

公开(公告)号：GB2419483B

公开(公告)日：2008-12-24

申请号：GB0420642

申请日：2004-09-17

Applicant: MOTOROLA INC

Inventor： SHIRAZI GADI ,  FRIEDLANDER HAIM ,  LUZATTO ARIEL

IPC: H03D3/00 ,  H04B1/16 ,  H04B1/40 ,  H04L27/152

Abstract: A demodulator (100) for demodulating a frequency modulated RF signal (x(t)), includes an input signal path (101) for delivering an RF input signal, a local oscillator (111), connected to the input signal path a first mixer (107) for mixing an output reference signal from the local oscillator with an RF input signal to produce an in-phase component of the input received signal, a phase shifter (113), connected to the input signal path a second mixer (109) for mixing an output reference signal from the local oscillator via the phase shifter with the RF input signal to produce a quadrature component of the RF input signal; and an output signal processor (119) for producing an output demodulated information signal by producing a function of the in-phase and quadrature components; and wherein the demodulator is periodically operable in a quadrature phase error determination mode wherein the reference signals produced by the local oscillator have a frequency which is offset from the carrier frequency of an RF input signal. Also described is a RF receiver, method and terminal using the demodulator.