利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.032 秒)

    Transmitter and semiconductor integrated circuit for communication
    1.
    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

    申请人： Ryoichi Takano ,  Kazuhiko Hikasa ,  Yasuyuki Kimura ,  Hiroshi Hagisawa ,  Patrick Wurm ,  Robert Astle Henshaw ,  David Freeborough

    发明人： Ryoichi Takano ,  Kazuhiko Hikasa ,  Yasuyuki Kimura ,  Hiroshi Hagisawa ,  Patrick Wurm ,  Robert Astle Henshaw ,  David Freeborough

    IPC分类号： H04B1/40

    CPC分类号： H03C5/00 ,  H03F1/34 ,  H03F3/24 ,  H04B1/0475 ,  H04B2001/0433 ,  H04L27/0008 ,  H04L27/2017 ,  H04L27/2071 ,  H04L27/361

    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
    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

    申请人： Ryoichi Takano ,  Kazuhiko Hikasa ,  Yasuyuki Kimura ,  Hiroshi Hagisawa ,  Patrick Wurm ,  Robert Henshaw ,  David Freeborough

    发明人： Ryoichi Takano ,  Kazuhiko Hikasa ,  Yasuyuki Kimura ,  Hiroshi Hagisawa ,  Patrick Wurm ,  Robert Henshaw ,  David Freeborough

    IPC分类号： H04B1/02

    CPC分类号： H03C5/00 ,  H03F1/34 ,  H03F3/24 ,  H04B1/0475 ,  H04B2001/0433 ,  H04L27/0008 ,  H04L27/2017 ,  H04L27/2071 ,  H04L27/361

    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

    申请人： Noriyuki Kurakami ,  Kazuhiko Hikasa ,  Ryoichi Takano ,  Patrick Wurm

    发明人： Noriyuki Kurakami ,  Kazuhiko Hikasa ,  Ryoichi Takano ,  Patrick Wurm

    IPC分类号： H03G3/30 ,  H04L27/20 ,  H04L27/36 ,  H04B1/00 ,  H03C1/62 ,  H04B7/00 ,  H04B17/00

    CPC分类号： H04L27/2017 ,  H03G3/3047 ,  H04L27/361

    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
    8.
    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

    申请人： Noriyuki Kurakami ,  Kazuhiko Hikasa ,  Ryoichi Takano ,  Patrick Wurm

    发明人： Noriyuki Kurakami ,  Kazuhiko Hikasa ,  Ryoichi Takano ,  Patrick Wurm

    IPC分类号： H04B1/00

    CPC分类号： H04L27/2017 ,  H03G3/3047 ,  H04L27/361

    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。

    Communication semiconductor integrated circuit, a wireless communication apparatus, and a loop gain calibration method
    9.
    发明申请
    Communication semiconductor integrated circuit, a wireless communication apparatus, and a loop gain calibration method 审中-公开
    通信半导体集成电路，无线通信装置和环路增益校准方法

    公开(公告)号：US20060189285A1

    公开(公告)日：2006-08-24

    申请号：US11407977

    申请日：2006-04-21

    申请人： Ryoichi Takano ,  Kenji Toyota ,  Patrick Wurm ,  Robert Henshaw ,  David Freeborough

    发明人： Ryoichi Takano ,  Kenji Toyota ,  Patrick Wurm ,  Robert Henshaw ,  David Freeborough

    IPC分类号： H01Q11/12 ,  H04B1/04

    CPC分类号： H03G3/3047 ,  H04L27/368

    摘要： A polar-loop wireless communication apparatus includes, on a forward path between an amplitude detector and a power amplifier which constitute an amplitude control loop, a variable gain amplifier and a switch to change characteristics of a loop filter to output a frequency bandwidth of the amplitude control loop to an order less than an order for normal operation. The system is operated with the characteristics set to the lower order to measure outputs from the power amplifier to calibrate the output power of the power transmitter, and the register is operated with the characteristics set to the higher order to measure the open loop gain of the amplitude control. According to results of the calculation, data to correct gain characteristics of the variable gain amplifier with respect to an output control signal is stored in a nonvolatile memory of a baseband circuit.

    摘要翻译： 极地回路无线通信装置在振幅检测器和构成振幅控制环路的功率放大器之间的前向路径上包括可变增益放大器和开关，以改变环路滤波器的特性，以输出振幅的频率带宽 控制循环到小于正常操作的顺序的顺序。 该系统的运行特性设置为较低阶，以测量功率放大器的输出，以校准功率发射器的输出功率，并且寄存器的运行特性设置为较高阶，以测量开环增益的开环增益 幅度控制。 根据计算结果，将可变增益放大器相对于输出控制信号的增益特性校正的数据存储在基带电路的非易失性存储器中。