公开(公告)号：JP2008206198A

公开(公告)日：2008-09-04

申请号：JP2008124176

申请日：2008-05-12

Applicant: Skyworks Solutions Inc ,  スカイワークス ソリューションズ,インコーポレイテッドSkyworks Solutions,Inc.

Inventor： DAMGAARD MORTEN ,  DOMINO WILLIAM J ,  MAGOON RAHUL ,  MOLNAR ALYOSHA C ,  ZACHAN JEFF

IPC: H03L7/099 ,  H03B1/00 ,  H03B5/08 ,  H03L5/00 ,  H03L7/087 ,  H03L7/10 ,  H03L7/113 ,  H03L7/187 ,  H04B1/40

CPC classification number: H03L7/099 ,  H03B2201/025 ,  H03B2201/0291 ,  H03J2200/10 ,  H03L5/00 ,  H03L7/087 ,  H03L7/113

Abstract: PROBLEM TO BE SOLVED: To provide a system for controlling the frequency of the output signal of a controllable oscillator (202) in a frequency synthesizer (200). SOLUTION: One such system comprises a controllable oscillator (202) and a frequency control circuit (208). The controllable oscillator (202) is configured to generate an output signal that has a predetermined frequency. The controllable oscillator (202) is also configured with a plurality of operational states that are controlled by the frequency control circuit (208). Each operational state of the controllable oscillator (202) defines a distinct frequency for the output signal of the controllable oscillator (202). The frequency control circuit (208) receives the output signal of the controllable oscillator (202) and determines the distinct frequency for the output signal that best approximates the predetermined frequency. The frequency control circuit (208) may also provide a control signal to the controllable oscillator (202) that is configured to change the controllable oscillator (202) to the operational state corresponding to the distinct frequency that best approximates the predetermined frequency. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于控制频率合成器（200）中的可控振荡器（202）的输出信号的频率的系统。 解决方案：一个这样的系统包括可控振荡器（202）和频率控制电路（208）。 可控振荡器（202）被配置为产生具有预定频率的输出信号。 可控振荡器（202）还配置有由频率控制电路（208）控制的多个操作状态。 可控振荡器（202）的每个操作状态为可控振荡器（202）的输出信号定义不同的频率。 频率控制电路（208）接收可控振荡器（202）的输出信号，并确定最接近预定频率的输出信号的不同频率。 频率控制电路（208）还可以向可控振荡器（202）提供控制信号，该控制信号被配置为将可控振荡器（202）改变到对应于最接近预定频率的不同频率的操作状态。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：AT266907T

公开(公告)日：2004-05-15

申请号：AT00959648

申请日：2000-08-30

Applicant: SKYWORKS SOLUTIONS INC

Inventor： DAMGAARD MORTEN ,  THAM J L JULIAN

IPC: H04B1/40

Abstract: A multi-band transceiver for receiving and transmitting signals within selected GSM frequency bands. Transmission and reception occurs simultaneously and within the same time slot of a TDMA frame. The transceiver includes a first local oscillator LO1 that selectively oscillates within a bandwidth corresponding to the selected GSM band and outputs a signal having a frequency fLO1. A second local oscillator LO2 selectively oscillates at a frequency corresponding to the selected GSM band and outputs a signal having a frequency fLO2. A receiver receives a signal having a frequency fRx and mixes the signals from the first and second local oscillators to generate a demodulating signal having a frequency fRx, wherein fRx=fLO1±fLO2. A transmitter having a loop architecture includes a VCO that generates a signal having a transmit frequency fTx equal to fRx minus a comparison frequency fCF, and a mixer that mixes the signal from the first local oscillator with the transmit signal to generate an IF signal having a frequency fIF=fLO2±fCF. A quadrature mixer that modulates the IF signal with baseband "I" and "Q" signals, and a phase detector that compares the phases of the IF signal and the signal from the second local oscillator and outputs a control voltage to the VCO.

公开(公告)号：DE60011234T2

公开(公告)日：2005-06-30

申请号：DE60011234

申请日：2000-03-02

Applicant: SKYWORKS SOLUTIONS INC

Inventor： ROZENBLIT DMITRIY ,  DOMINO J ,  DAMGAARD MORTEN ,  OSKOWSKY MARK

IPC: H03D3/00 ,  H03D7/14 ,  H04B1/30 ,  H04B1/40

Abstract: A multi-band transceiver having a receiver portion and a transmitter portion, wherein the receiver portion includes a direct conversion receiver system for directly downconverting a signal to baseband frequencies. The direct conversion receiver system includes a frequency translator having first and second inputs and an output. A first signal at a first frequency is applied to the first input. A second signal having a second frequency is applied to the second input. The first frequency is preferably an nth order subharmonic of the second frequency, wherein n is an integer greater than 1. A low pass filter is integral with or inherent to the first input, and a high pass filter is integral with or inherent to the second input. The corner frequencies of both the low pass and high pass filters is above the first frequency and below the second frequency.

公开(公告)号：HK1061748A1

公开(公告)日：2004-09-30

申请号：HK04104677

申请日：2004-06-30

Applicant: SKYWORKS SOLUTIONS INC

Inventor： DAMGAARD MORTEN ,  DOMINO WILLIAM J ,  MAGOON RAHUL ,  MOLNAR ALYOSHA C ,  ZACHAN JEFFREY

IPC: H03L20060101 ,  H03B1/00 ,  H03L5/00 ,  H03L7/087 ,  H03L7/099 ,  H03L7/113 ,  H03L7/187 ,  H04B1/40

Abstract: Systems for controlling the frequency of the output signal of a controllable oscillator in a frequency synthesizer are provided. One such system comprises a controllable oscillator and a frequency control circuit. The controllable oscillator is configured to generate an output signal that has a predefined frequency. The controllable oscillator is also configured with a plurality of operational states that are controlled by the frequency control circuit. Each operational state of the controllable oscillator defines a distinct frequency for the output signal of the controllable oscillator. The frequency control circuit receives the output signal of the controllable oscillator and determines the distinct frequency for the output signal that best approximates the predefined frequency. The frequency control circuit may also provide a control signal to the controllable oscillator that is configured to change the controllable oscillator to the operational state corresponding to the distinct frequency that best approximates the predefined frequency.

公开(公告)号：DE60010726T2

公开(公告)日：2005-05-12

申请号：DE60010726

申请日：2000-08-30

Applicant: SKYWORKS SOLUTIONS INC

Inventor： DAMGAARD MORTEN ,  THAM L

IPC: H04B1/40

Abstract: A multi-band transceiver for receiving and transmitting signals within selected GSM frequency bands. Transmission and reception occurs simultaneously and within the same time slot of a TDMA frame. The transceiver includes a first local oscillator LO1 that selectively oscillates within a bandwidth corresponding to the selected GSM band and outputs a signal having a frequency fLO1. A second local oscillator LO2 selectively oscillates at a frequency corresponding to the selected GSM band and outputs a signal having a frequency fLO2. A receiver receives a signal having a frequency fRx and mixes the signals from the first and second local oscillators to generate a demodulating signal having a frequency fRx, wherein fRx=fLO1±fLO2. A transmitter having a loop architecture includes a VCO that generates a signal having a transmit frequency fTx equal to fRx minus a comparison frequency fCF, and a mixer that mixes the signal from the first local oscillator with the transmit signal to generate an IF signal having a frequency fIF=fLO2±fCF. A quadrature mixer that modulates the IF signal with baseband "I" and "Q" signals, and a phase detector that compares the phases of the IF signal and the signal from the second local oscillator and outputs a control voltage to the VCO.

公开(公告)号：ES2220439T3

公开(公告)日：2004-12-16

申请号：ES00915973

申请日：2000-03-02

Applicant: SKYWORKS SOLUTIONS INC

Inventor： ROZENBLIT DMITRIY ,  DOMINO WILLIAM J ,  DAMGAARD MORTEN ,  OSKOWSKY MARK

IPC: H03D3/00 ,  H03D7/14 ,  H04B1/30 ,  H04B1/40

Abstract: Sistema receptor de conversión directa, que comprende: Un sistema oscilador para proporcionar una primera señal (323) a una primera frecuencia que es aproximadamente un armónico de enésimo orden de una segunda frecuencia, donde n es un entero mayor que 1; un transductor (438) de frecuencias que tiene una primera entrada (431) para recibir la primera señal, una segunda entrada (430) para recibir una segunda señal (324) que tiene la segunda frecuencia, y una salida (439) para proporcionar una señal de salida obtenida de una transducción de frecuencia de la segunda señal; un primer filtro (432) dentro del o inherente al transductor de frecuencias, acoplado a la primera entrada y configurado para rechazar sustancialmente señales a la segunda frecuencia; y un segundo filtro (433) dentro del o inherente al transductor de frecuencias, acoplado a la segunda entrada y configurado para rechazar sustancialmente señales a la primera frecuencia.

公开(公告)号：HK1043262A1

公开(公告)日：2002-09-06

申请号：HK02103768

申请日：2002-05-21

Applicant: SKYWORKS SOLUTIONS INC

Inventor： ROZENBLIT DMITRIY ,  DOMINO WILLIAM J ,  DAMGAARD MORTEN ,  OSKOWSKY MARK

IPC: H03D3/00 ,  H03D7/14 ,  H04B1/30 ,  H04B1/40 ,  H04B

Abstract: A multi-band transceiver having a receiver portion and a transmitter portion, wherein the receiver portion includes a direct conversion receiver system for directly downconverting a signal to baseband frequencies. The direct conversion receiver system includes a frequency translator having first and second inputs and an output. A first signal at a first frequency is applied to the first input. A second signal having a second frequency is applied to the second input. The first frequency is preferably an nth order subharmonic of the second frequency, wherein n is an integer greater than 1. A low pass filter is integral with or inherent to the first input, and a high pass filter is integral with or inherent to the second input. The corner frequencies of both the low pass and high pass filters is above the first frequency and below the second frequency.

公开(公告)号：AT330364T

公开(公告)日：2006-07-15

申请号：AT02721582

申请日：2002-03-25

Applicant: SKYWORKS SOLUTIONS INC

Inventor： DAMGAARD MORTEN ,  DOMINO WILLIAM J ,  MAGOON RAHUL ,  MOLNAR ALYOSHA C ,  ZACHAN JEFFREY

IPC: H03B1/00 ,  H03L5/00 ,  H03L7/087 ,  H03L7/099 ,  H03L7/113 ,  H03L7/187 ,  H04B1/40

Abstract: Systems for controlling the frequency of the output signal of a controllable oscillator in a frequency synthesizer are provided. One such system comprises a controllable oscillator and a frequency control circuit. The controllable oscillator is configured to generate an output signal that has a predefined frequency. The controllable oscillator is also configured with a plurality of operational states that are controlled by the frequency control circuit. Each operational state of the controllable oscillator defines a distinct frequency for the output signal of the controllable oscillator. The frequency control circuit receives the output signal of the controllable oscillator and determines the distinct frequency for the output signal that best approximates the predefined frequency. The frequency control circuit may also provide a control signal to the controllable oscillator that is configured to change the controllable oscillator to the operational state corresponding to the distinct frequency that best approximates the predefined frequency.

公开(公告)号：DK1155505T3

公开(公告)日：2004-10-04

申请号：DK00915973

申请日：2000-03-02

Applicant: SKYWORKS SOLUTIONS INC

Inventor： ROZENBLIT DMITRIY ,  DOMINO WILLIAM J ,  DAMGAARD MORTEN ,  OSKOWSKY MARK

IPC: H03D3/00 ,  H03D7/14 ,  H04B1/30 ,  H04B1/40

Abstract: A multi-band transceiver having a receiver portion and a transmitter portion, wherein the receiver portion includes a direct conversion receiver system for directly downconverting a signal to baseband frequencies. The direct conversion receiver system includes a frequency translator having first and second inputs and an output. A first signal at a first frequency is applied to the first input. A second signal having a second frequency is applied to the second input. The first frequency is preferably an nth order subharmonic of the second frequency, wherein n is an integer greater than 1. A low pass filter is integral with or inherent to the first input, and a high pass filter is integral with or inherent to the second input. The corner frequencies of both the low pass and high pass filters is above the first frequency and below the second frequency.

公开(公告)号：DE60010726D1

公开(公告)日：2004-06-17

申请号：DE60010726

申请日：2000-08-30

Applicant: SKYWORKS SOLUTIONS INC

Inventor： DAMGAARD MORTEN ,  THAM L

IPC: H04B1/40

Abstract: A multi-band transceiver for receiving and transmitting signals within selected GSM frequency bands. Transmission and reception occurs simultaneously and within the same time slot of a TDMA frame. The transceiver includes a first local oscillator LO1 that selectively oscillates within a bandwidth corresponding to the selected GSM band and outputs a signal having a frequency fLO1. A second local oscillator LO2 selectively oscillates at a frequency corresponding to the selected GSM band and outputs a signal having a frequency fLO2. A receiver receives a signal having a frequency fRx and mixes the signals from the first and second local oscillators to generate a demodulating signal having a frequency fRx, wherein fRx=fLO1±fLO2. A transmitter having a loop architecture includes a VCO that generates a signal having a transmit frequency fTx equal to fRx minus a comparison frequency fCF, and a mixer that mixes the signal from the first local oscillator with the transmit signal to generate an IF signal having a frequency fIF=fLO2±fCF. A quadrature mixer that modulates the IF signal with baseband "I" and "Q" signals, and a phase detector that compares the phases of the IF signal and the signal from the second local oscillator and outputs a control voltage to the VCO.