Wireless communication system and communication semiconductor integrated circuit device
    1.
    发明授权
    Wireless communication system and communication semiconductor integrated circuit device 有权
    无线通信系统和通信半导体集成电路器件

    公开(公告)号:US07356092B2

    公开(公告)日:2008-04-08

    申请号:US10808318

    申请日:2004-03-25

    IPC分类号: H04L27/36

    摘要: When a transmitting oscillator is built in a communication semiconductor integrated circuit device like a high-frequency IC constituting a wireless communication system, the system prevents degradation of the accuracy of control on the output power of a power amplifier due to noise jumped from an output pin of the transmitting oscillator to an input pin for a detected signal (feedback signal) of an output level of the power amplifier. The transmitting oscillator is built in the high-frequency IC. The detected signal of the output level of the power amplifier, which is detected by a coupler, is attenuated to a level slightly higher than the level of noise jumped from the output pin of the transmitting oscillator to the input pin for a feedback signal of an amplitude control loop, which in turn is inputted to the feedback signal input pin of the high-frequency IC.

    摘要翻译: 当发送振荡器构建在诸如构成无线通信系统的高频IC的通信半导体集成电路装置中时,该系统防止由于从输出引脚跳出的噪声对功率放大器的输出功率的控制精度的降低 发送振荡器到功率放大器的输出电平的检测信号(反馈信号)的输入引脚。 发射振荡器内置在高频IC中。 由耦合器检测到的功率放大器的输出电平的检测信号被衰减到略高于从发送振荡器的输出引脚跳到输入引脚的噪声电平的电平,用于反馈信号 幅度控制环路,进而输入到高频IC的反馈信号输入引脚。

    High frequency semiconductor integrated circuit device, wireless electric unit and wireless communication system
    3.
    发明申请
    High frequency semiconductor integrated circuit device, wireless electric unit and wireless communication system 失效
    高频半导体集成电路器件,无线电器单元及无线通讯系统

    公开(公告)号:US20050040896A1

    公开(公告)日:2005-02-24

    申请号:US10870914

    申请日:2004-06-21

    摘要: If a transmission oscillator is incorporated into a communication semiconductor integrated circuit, such as high a frequency IC, constituting a wireless communication system, a problem arises. The accuracy of control of the output power of a power amplifier is degraded. This degradation in accuracy is caused by coupling noise between the output pins of the transmission oscillator and an input pin for detection signals (feedback signals) associated with the output level of the power amplifier or crosstalk. To prevent this, a transmission oscillator of differential output configuration is incorporated into a high frequency IC and an impedance equivalent to the impedance connected with a regular output terminal or a dummy external terminal for outputting transmit signals in opposite phase is provided.

    摘要翻译: 如果将发送振荡器并入到构成无线通信系统的诸如高频IC的通信半导体集成电路中,则会出现问题。 功率放大器的输出功率的控制精度降低。 这种精度的降低是由传输振荡器的输出引脚之间的耦合噪声和与功率放大器的输出电平或串扰相关的检测信号(反馈信号)的输入引脚引起的。 为了防止这种情况,将差分输出配置的发送振荡器并入到高频IC中,并且提供与用于输出相反相位的发送信号的常规输出端子或虚设外部端子连接的阻抗相等的阻抗。

    Transmitter and semiconductor integrated circuit for communication
    4.
    发明申请
    Transmitter and semiconductor integrated circuit for communication 有权
    发射机和半导体集成电路进行通讯

    公开(公告)号:US20070249297A1

    公开(公告)日:2007-10-25

    申请号:US11812276

    申请日:2007-06-18

    IPC分类号: H04B1/02

    摘要: A transmitter adopting a polar loop system including a phase control loop for controlling the phase of a carrier signal outputted from a transmitting oscillator and an amplitude control loop for controlling the amplitude of a transmitting output signal outputted from a power amplification circuit, and designed to be capable of performing transmission using a GMSK modulation mode and transmission using an 8-PSK modulation mode. In the transmitter, the phase control loop is shared as a phase control loop for use in the GMSK modulation mode and a phase control loop for use in the 8-PSK modulation mode. A component similar to any one of components constituting a loop filter is provided in parallel therewith so that the component can be connected or disconnected in accordance with the modulation mode, for example, by use of a switching element.

    摘要翻译: 一种采用极性环路系统的发射机,包括用于控制从发射振荡器输出的载波信号的相位的相位控制环路和用于控制从功率放大电路输出的发射输出信号的振幅的幅度控制环路,并被设计为 能够使用GMSK调制模式进行发送,并且使用8-PSK调制模式进行发送。 在发射机中,相位控制环路作为用于GMSK调制模式的相位控制环路和用于8-PSK调制模式的相位控制环路共享。 与构成环路滤波器的组件中的任何一个相似的部件与其并联地设置,使得可以根据调制模式例如通过使用开关元件来连接或断开部件。

    Transmitter and semiconductor integrated circuit for communication
    6.
    发明授权
    Transmitter and semiconductor integrated circuit for communication 有权
    发射机和半导体集成电路进行通讯

    公开(公告)号:US07433653B2

    公开(公告)日:2008-10-07

    申请号:US11812276

    申请日:2007-06-18

    IPC分类号: H04B1/40

    摘要: A transmitter adopting a polar loop system including a phase control loop for controlling the phase of a carrier signal outputted from a transmitting oscillator and an amplitude control loop for controlling the amplitude of a transmitting output signal outputted from a power amplification circuit, and designed to be capable of performing transmission using a GMSK modulation mode and transmission using an 8-PSK modulation mode. In the transmitter, the phase control loop is shared as a phase control loop for use in the GMSK modulation mode and a phase control loop for use in the 8-PSK modulation mode. A component similar to any one of components constituting a loop filter is provided in parallel therewith so that the component can be connected or disconnected in accordance with the modulation mode, for example, by use of a switching element.

    摘要翻译: 一种采用极性环路系统的发射机,包括用于控制从发射振荡器输出的载波信号的相位的相位控制环路和用于控制从功率放大电路输出的发射输出信号的振幅的幅度控制环路,并被设计为 能够使用GMSK调制模式进行发送,并且使用8-PSK调制模式进行发送。 在发射机中,相位控制环路作为用于GMSK调制模式的相位控制环路和用于8-PSK调制模式的相位控制环路共享。 与构成环路滤波器的组件中的任何一个相似的部件与其并联地设置,使得可以根据调制模式例如通过使用开关元件来连接或断开部件。

    Method of ramping up output level of power amplifier of radio communication system, communication semiconductor integrated circuit, and radio communication system
    7.
    发明申请
    Method of ramping up output level of power amplifier of radio communication system, communication semiconductor integrated circuit, and radio communication system 有权
    无线电通信系统,通信半导体集成电路和无线电通信系统功率放大器输出电平升高的方法

    公开(公告)号:US20050064828A1

    公开(公告)日:2005-03-24

    申请号:US10901195

    申请日:2004-07-29

    摘要: In a radio communication system having a phase control loop for phase modulation and an amplitude control loop for amplitude modulation and being capable of time divisional transmission and reception under a predetermined time management, when transmission in a first mode is switched to transmission in a second mode or when transmission in the second mode is switched to transmission in the first mode, the output level of the power amplifier is lowered once to a predetermined level higher than the level when transmission related circuits are activated, and thereafter the output level of the power amplifier is again ramped after the settings have been changed but without starting of a transmission oscillator, establishing of the phase control loop and the amplitude control loop.

    摘要翻译: 在具有用于相位调制的相位控制环路和用于幅度调制的幅度控制环路的无线电通信系统中,并且能够在预定时间管理下进行时分传输和接收,当以第二模式切换到第一模式的传输时 或者当在第二模式中的传输切换到第一模式的传输时,功率放大器的输出电平降低到比传输相关电路激活时的电平高一个预定的电平,此后功率放大器的输出电平 在设置被改变但是没有启动发送振荡器,建立相位控制环路和幅度控制环路之后,再次斜坡。

    Method of ramping up output level of power amplifier of radio communication system, communication semiconductor integrated circuit, and radio communication system
    9.
    发明授权
    Method of ramping up output level of power amplifier of radio communication system, communication semiconductor integrated circuit, and radio communication system 有权
    无线电通信系统,通信半导体集成电路和无线电通信系统功率放大器输出电平升高的方法

    公开(公告)号:US07324787B2

    公开(公告)日:2008-01-29

    申请号:US10901195

    申请日:2004-07-29

    IPC分类号: H04B1/00

    摘要: In a radio communication system having a phase control loop for phase modulation and an amplitude control loop for amplitude modulation and being capable of time divisional transmission and reception under a predetermined time management, when transmission in a first mode is switched to transmission in a second mode or when transmission in the second mode is switched to transmission in the first mode, the output level of the power amplifier is lowered once to a predetermined level higher than the level when transmission related circuits are activated, and thereafter the output level of the power amplifier is again ramped after the settings have been changed but without starting of a transmission oscillator, establishing of the phase control loop and the amplitude control loop.

    摘要翻译: 在具有用于相位调制的相位控制环路和用于幅度调制的幅度控制环路的无线电通信系统中,并且能够在预定时间管理下进行时分传输和接收,当以第二模式切换到第一模式的传输时 或者当在第二模式中的传输切换到第一模式的传输时,功率放大器的输出电平降低到比传输相关电路激活时的电平高一个预定的电平,此后功率放大器的输出电平 在设置被改变但是没有启动发送振荡器,建立相位控制环路和幅度控制环路之后,再次斜坡。