Mobile wireless communications device with separate In-phase (I) and Quadrature (Q) phase power amplification and power amplifier pre-distortion and IQ balance compensation
    1.
    发明授权
    Mobile wireless communications device with separate In-phase (I) and Quadrature (Q) phase power amplification and power amplifier pre-distortion and IQ balance compensation 有权
    移动无线通信设备具有单独的同相(I)和正交(Q)相功率放大和功率放大器预失真和IQ平衡补偿

    公开(公告)号:US08223885B2

    公开(公告)日:2012-07-17

    申请号:US12388532

    申请日:2009-02-19

    IPC分类号: H04K1/02

    摘要: A communications device, in one aspect as a portable wireless communications device, includes an in-phase modulator and power amplifier that receives a baseband I signal and modulates and amplifies the I signal. A quadrature modulator and power amplifier receives a baseband Q signal and modulates and amplifies the Q signal. A power combiner sums and outputs the I and Q signals. An I demodulator circuit receives a signal fed back from the I power amplifier and demodulates the fed back signal to produce demodulated I signals. A Q demodulator circuit receives a signal fed back from the Q power amplifier and demodulates the fed back signal to produce demodulated Q signals. A processor compares the digital, baseband I and Q signals with a demodulated I and Q signals to compensate for amplitude, frequency and phase modulation errors.

    摘要翻译: 在一方面,作为便携式无线通信设备的通信设备包括接收基带I信号并调制和放大I信号的同相调制器和功率放大器。 正交调制器和功率放大器接收基带Q信号并调制和放大Q信号。 功率组合器对I和Q信号进行求和并输出。 I解调器电路接收从I功率放大器反馈的信号并解调反馈信号以产生解调的I信号。 Q解调器电路接收从Q功率放大器反馈的信号,并且对反馈信号进行解调以产生解调的Q信号。 处理器将数字,基带I和Q信号与解调的I和Q信号进行比较,以补偿幅度,频率和相位调制误差。

    TELEPHONE SYSTEM HAVING REDUCED SENSITIVITY TO RF INTERFERENCE AND RELATED METHODS
    4.
    发明申请
    TELEPHONE SYSTEM HAVING REDUCED SENSITIVITY TO RF INTERFERENCE AND RELATED METHODS 有权
    具有降低对RF干扰的灵敏度的电话系统和相关方法

    公开(公告)号:US20120069988A1

    公开(公告)日:2012-03-22

    申请号:US13303342

    申请日:2011-11-23

    IPC分类号: H04M1/00

    摘要: A telephone to be connected to a wireline having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a transmit amplifier, a receive amplifier, an audio input transducer connected to the transmit amplifier, and an audio output transducer connected to the receive amplifier. The telephone may further include an RF shield(s) surrounding the audio input transducer and the audio output transducer for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device. Moreover, the telephone may also include at least one RF audio input filter element connected to the audio input transducer and at least one RF audio output filter element connected to the audio output transducer, both of which are also for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.

    摘要翻译: 要连接到在相邻的移动无线通信设备的预定频率范围内具有降低的RF干扰灵敏度的电话的电话可以包括发射放大器,接收放大器,连接到发射放大器的音频输入变换器和音频输出 传感器连接到接收放大器。 电话还可以包括围绕音频输入换能器的RF屏蔽和音频输出换能器,用于在相邻的移动无线通信设备的预定频率范围内减少RF干扰。 此外,电话还可以包括连接到音频输入变换器的至少一个RF音频输入滤波器元件和连接到音频输出变换器的至少一个RF音频输出滤波器元件,这两个也是用于减少超过预定频率的RF干扰 范围从相邻的移动无线通信设备。

    MOBILE WIRELESS COMMUNICATIONS DEVICE WITH SEPARATE IN-PHASE AND QUADRATURE POWER AMPLIFICATION
    5.
    发明申请
    MOBILE WIRELESS COMMUNICATIONS DEVICE WITH SEPARATE IN-PHASE AND QUADRATURE POWER AMPLIFICATION 有权
    移动无线通信设备,具有单相和三相功率放大

    公开(公告)号:US20100016032A1

    公开(公告)日:2010-01-21

    申请号:US12173045

    申请日:2008-07-15

    IPC分类号: H04B1/38

    摘要: A mobile wireless communications device includes a housing an antenna, and radio frequency (RF) circuitry. A transceiver is connected to the antenna and a processor is operative with the RF circuitry. The transceiver includes an In-phase and Quadrature (I/Q) Modulation and Power Amplification circuit having an In-phase (I) circuit with a modulator mixer and power amplifier circuit. A Quadrature (Q) circuit includes a modulator mixer and power amplifier circuit. A power combiner receives the separately amplified In-phase and Quadrature signals and sums and outputs the signals as a combined I and Q signal. The I and Q circuits are isolated from the combined I and Q signal to enhance antenna matching and transmitted radiated power (TRP) and reduce harmonic emission from the power amplification circuits.

    摘要翻译: 移动无线通信设备包括外壳天线和射频(RF)电路。 收发器连接到天线,并且处理器与RF电路一起工作。 收发器包括具有调制器混频器和功率放大器电路的同相(I)电路的同相和正交(I / Q)调制和功率放大电路。 正交(Q)电路包括调制器混频器和功率放大器电路。 功率组合器接收单独放大的同相和正交信号,并将信号相加和输出,作为组合的I和Q信号。 I和Q电路与组合的I和Q信号隔离,以增强天线匹配和发射辐射功率(TRP),并减少功率放大电路的谐波发射。

    Telephone system having reduced sensitivity to RF interference and related methods
    6.
    发明授权
    Telephone system having reduced sensitivity to RF interference and related methods 有权
    具有降低的RF干扰灵敏度的电话系统和相关方法

    公开(公告)号:US07480523B2

    公开(公告)日:2009-01-20

    申请号:US11343091

    申请日:2006-01-30

    IPC分类号: H04Q7/20

    摘要: A telephone to be connected to a wireline having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a transmit amplifier, a receive amplifier, an audio input transducer connected to the transmit amplifier, and an audio output transducer connected to the receive amplifier. The telephone may further include an RF shield(s) surrounding the audio input transducer and the audio output transducer for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device. Moreover, the telephone may also include at least one RF audio input filter element connected to the audio input transducer and at least one RF audio output filter element connected to the audio output transducer, both of which are also for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.

    摘要翻译: 要连接到在相邻的移动无线通信设备的预定频率范围内具有降低的RF干扰灵敏度的电话的电话可以包括发射放大器,接收放大器,连接到发射放大器的音频输入变换器和音频输出 传感器连接到接收放大器。 电话还可以包括围绕音频输入换能器的RF屏蔽和音频输出换能器,用于在相邻的移动无线通信设备的预定频率范围内减少RF干扰。 此外,电话还可以包括连接到音频输入变换器的至少一个RF音频输入滤波器元件和连接到音频输出变换器的至少一个RF音频输出滤波器元件,这两个也是用于减少超过预定频率的RF干扰 范围从相邻的移动无线通信设备。

    Mobile wireless communications device with reduced interfering energy from the display and related methods
    7.
    发明授权
    Mobile wireless communications device with reduced interfering energy from the display and related methods 有权
    具有减少来自显示器的干扰能量的移动无线通信设备及相关方法

    公开(公告)号:US07328047B2

    公开(公告)日:2008-02-05

    申请号:US11065243

    申请日:2005-02-24

    IPC分类号: H04M1/00

    摘要: A mobile wireless communications device includes a housing and circuit board carried by the housing and includes radio frequency (RF) circuitry and a processor carried by the circuit board and operative with each other. A display connector for an LCD connector is mounted on the circuit board and adapted to be connected to a display. Display connection lines are carried by the circuit board and interconnect the display connector and processor for carrying signals from the processor to the display connector and a connected display. Filters are carried by the circuit board and connected to the display connection lines and reduce any interfering energy from the processor and display.

    摘要翻译: 移动无线通信设备包括由外壳承载的壳体和电路板,并且包括射频(RF)电路和由电路板携带并且彼此操作的处理器。 用于LCD连接器的显示器连接器安装在电路板上并且适于连接到显示器。 显示器连接线由电路板携带,并将显示器连接器和处理器互连起来,用于将信号从处理器传送到显示器连接器和连接的显示器。 滤波器由电路板承载并连接到显示器连接线,并减少来自处理器和显示器的干扰能量。

    Telephone system having reduced sensitivity to RF interference and related methods
    8.
    发明授权
    Telephone system having reduced sensitivity to RF interference and related methods 有权
    具有降低的RF干扰灵敏度的电话系统和相关方法

    公开(公告)号:US08086286B2

    公开(公告)日:2011-12-27

    申请号:US12974408

    申请日:2010-12-21

    IPC分类号: H04M1/00

    摘要: A telephone to be connected to a wireline having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a transmit amplifier, a receive amplifier, an audio input transducer connected to the transmit amplifier, and an audio output transducer connected to the receive amplifier. The telephone may further include an RF shield(s) surrounding the audio input transducer and the audio output transducer for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device. Moreover, the telephone may also include at least one RF audio input filter element connected to the audio input transducer and at least one RF audio output filter element connected to the audio output transducer, both of which are also for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.

    摘要翻译: 要连接到在相邻的移动无线通信设备的预定频率范围内具有降低的RF干扰灵敏度的电话的电话可以包括发射放大器,接收放大器,连接到发射放大器的音频输入变换器和音频输出 传感器连接到接收放大器。 电话还可以包括围绕音频输入换能器的RF屏蔽和音频输出换能器,用于在相邻的移动无线通信设备的预定频率范围内减少RF干扰。 此外,电话还可以包括连接到音频输入变换器的至少一个RF音频输入滤波器元件和连接到音频输出变换器的至少一个RF音频输出滤波器元件,这两个也是用于减少超过预定频率的RF干扰 范围从相邻的移动无线通信设备。

    Mobile wireless communications device with antenna contact having reduced RF inductance
    9.
    发明授权
    Mobile wireless communications device with antenna contact having reduced RF inductance 有权
    具有天线接触的移动无线通信设备具有降低的RF电感

    公开(公告)号:US07932864B2

    公开(公告)日:2011-04-26

    申请号:US12173043

    申请日:2008-07-15

    IPC分类号: H01Q1/24

    摘要: A mobile wireless communications device includes a housing and at least one circuit board. Radio frequency (RF) circuitry is carried by the circuit board and includes a transceiver. A processor is carried by the at least one circuit board and operative with the RF circuitry. An antenna is mounted within the housing. An antenna contact is secured on the at least one circuit board and operatively connects the RF circuitry and engages the antenna at an antenna contact point. Electromagnetic interference (EMI) shielding is positioned at the antenna contact point and reduces RF inductance effects.

    摘要翻译: 移动无线通信设备包括壳体和至少一个电路板。 射频(RF)电路由电路板承载并且包括收发器。 处理器由至少一个电路板携带并与RF电路一起操作。 天线安装在外壳内。 天线接触件固定在所述至少一个电路板上并可操作地连接所述RF电路并且在天线接触点处接合所述天线。 电磁干扰(EMI)屏蔽位于天线接触点,减少RF电感效应。

    Telephone system having reduced sensitivity to RF interference and related methods

    公开(公告)号:US07869841B2

    公开(公告)日:2011-01-11

    申请号:US12326212

    申请日:2008-12-02

    IPC分类号: H04M1/00 H04B17/00

    摘要: A telephone to be connected to a wireline having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a transmit amplifier, a receive amplifier, an audio input transducer connected to the transmit amplifier, and an audio output transducer connected to the receive amplifier. The telephone may further include an RF shield(s) surrounding the audio input transducer and the audio output transducer for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device. Moreover, the telephone may also include at least one RF audio input filter element connected to the audio input transducer and at least one RF audio output filter element connected to the audio output transducer, both of which are also for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.