利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

53 条记录 (耗时 0.028 秒)

    Joint optimisation of supply and bias modulation
    1.
    发明授权
    Joint optimisation of supply and bias modulation 有权
    联合优化供应和偏置调制

    公开(公告)号：US08981846B2

    公开(公告)日：2015-03-17

    申请号：US13346098

    申请日：2012-01-09

    申请人： Gerard Wimpenny ,  Julian Hildersley ,  Robert Henshaw ,  Yi Qin

    发明人： Gerard Wimpenny ,  Julian Hildersley ,  Robert Henshaw ,  Yi Qin

    IPC分类号： H03G3/20 ,  H03F1/02

    CPC分类号： H03F1/32 ,  H03F1/0227 ,  H03F1/0266 ,  H03F2200/102 ,  H03F2200/228 ,  H03F2200/504

    摘要： There is disclosed a technique for controlling at least one amplification stage, comprising: selecting a linearity objective for the amplification stage; in dependence on an input signal to said amplification stage, determining a combination of supply input and bias input for the amplification stage in order to meet said linearity objective; and in dependence on there being more than one combination of supply input and bias input for meeting the linearity objective, selecting the combination that optimizes a further system performance objective for the amplification stage. The further system performance objective may be one or more of: an efficiency objective; an envelope signal bandwidth objective; or a robustness to production tolerance objective.

    摘要翻译： 公开了一种用于控制至少一个放大级的技术，包括：选择放大级的线性度; 根据对所述放大级的输入信号，确定用于放大级的电源输入和偏置输入的组合，以便满足所述线性目标; 并且依赖于用于满足线性度目标的供给输入和偏置输入的多于一个组合，选择优化用于放大级的另一系统性能目标的组合。 进一步的系统性能目标可以是一个或多个：效率目标; 包络信号带宽目标; 或对生产容忍目标的鲁棒性。

    Joint optimisation of supply and bias modulation
    2.
    发明申请
    Joint optimisation of supply and bias modulation 有权
    联合优化供应和偏置调制

    公开(公告)号：US20120105152A1

    公开(公告)日：2012-05-03

    申请号：US13346098

    申请日：2012-01-09

    申请人： Gerard Wimpenny ,  Julian Hildersley ,  Robert Henshaw ,  Yi Qin

    发明人： Gerard Wimpenny ,  Julian Hildersley ,  Robert Henshaw ,  Yi Qin

    IPC分类号： H03G3/20

    CPC分类号： H03F1/32 ,  H03F1/0227 ,  H03F1/0266 ,  H03F2200/102 ,  H03F2200/228 ,  H03F2200/504

    摘要： There is disclosed a technique for controlling at least one amplification stage, comprising: selecting a linearity objective for the amplification stage; in dependence on an input signal to said amplification stage, determining a combination of supply input and bias input for the amplification stage in order to meet said linearity objective; and in dependence on there being more than one combination of supply input and bias input for meeting the linearity objective, selecting the combination that optimises a further system performance objective for the amplification stage. The further system performance objective may be one or more of: an efficiency objective; an envelope signal bandwidth objective; or a robustness to production tolerance objective.

    摘要翻译： 公开了一种用于控制至少一个放大级的技术，包括：选择放大级的线性度; 根据对所述放大级的输入信号，确定用于放大级的电源输入和偏置输入的组合，以便满足所述线性目标; 并且依赖于用于满足线性度目标的供给输入和偏置输入的多于一个组合，选择优化用于放大级的另一系统性能目标的组合。 进一步的系统性能目标可以是一个或多个：效率目标; 包络信号带宽目标; 或对生产容忍目标的鲁棒性。

    Joint optimisation of supply and bias modulation
    3.
    发明申请
    Joint optimisation of supply and bias modulation 有权
    联合优化供应和偏置调制

    公开(公告)号：US20100073088A1

    公开(公告)日：2010-03-25

    申请号：US12558090

    申请日：2009-09-11

    申请人： Gerard Wimpenny ,  Julian Hildersley ,  Robert Henshaw ,  Yi Qin

    发明人： Gerard Wimpenny ,  Julian Hildersley ,  Robert Henshaw ,  Yi Qin

    IPC分类号： H03F1/00

    CPC分类号： H03F1/32 ,  H03F1/0227 ,  H03F1/0266 ,  H03F2200/102 ,  H03F2200/228 ,  H03F2200/504

    摘要： There is disclosed a technique for controlling at least one amplification stage, comprising: selecting a linearity objective for the amplification stage; in dependence on an input signal to said amplification stage, determining a combination of supply input and bias input for the amplification stage in order to meet said linearity objective; and in dependence on there being more than one combination of supply input and bias input for meeting the linearity objective, selecting the combination that optimises a further system performance objective for the amplification stage. The further system performance objective may be one or more of: an efficiency objective; an envelope signal bandwidth objective; or a robustness to production tolerance objective.

    摘要翻译： 公开了一种用于控制至少一个放大级的技术，包括：选择放大级的线性度; 根据对所述放大级的输入信号，确定用于放大级的电源输入和偏置输入的组合，以便满足所述线性目标; 并且依赖于用于满足线性度目标的供给输入和偏置输入的多于一个组合，选择优化用于放大级的另一系统性能目标的组合。 进一步的系统性能目标可以是一个或多个：效率目标; 包络信号带宽目标; 或对生产容忍目标的鲁棒性。

    Transmitter and semiconductor integrated circuit for communication
    5.
    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。

    Communication semiconductor integrated circuit device and a wireless communication system
    7.
    发明申请
    Communication semiconductor integrated circuit device and a wireless communication system 失效
    通信半导体集成电路器件和无线通信系统

    公开(公告)号：US20070161360A1

    公开(公告)日：2007-07-12

    申请号：US11727217

    申请日：2007-03-26

    申请人： Toshiya Uozumi ,  Yasuyuki Kimura ,  Hirotaka Osawa ,  Satoru Yamamoto ,  Robert Henshaw

    发明人： Toshiya Uozumi ,  Yasuyuki Kimura ,  Hirotaka Osawa ,  Satoru Yamamoto ,  Robert Henshaw

    IPC分类号： H04B7/00

    CPC分类号： H04B1/04 ,  H03C3/0925 ,  H03C3/0933 ,  H03D7/165 ,  H03D2200/0047 ,  H03J1/005 ,  H03L7/1976

    摘要： In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.

    摘要翻译： 在使用偏移PLL结构并且包括产生中频信号的振荡电路和分频器电路的通信半导体集成电路器件中，振荡器电路包括振荡器，可编程分频器，其根据频率分频振荡信号 信息，检测可编程分频器的输出信号和参考信号之间的相位差的相位比较器，以及用于输出指示相位差并控制振荡器的振荡频率的信号的频率控制单元，其中分频 基于与使用频带和模式信息相关的频带信息以及频道信息生成整数部分I和分数部分F / G，并产生分频比信息，从而将其分配给可编程分频器。

    Direct-conversion transmitting circuit and integrated transmitting/receiving circuit
    8.
    发明申请
    Direct-conversion transmitting circuit and integrated transmitting/receiving circuit 审中-公开
    直接转换发射电路和集成发射/接收电路

    公开(公告)号：US20070021076A1

    公开(公告)日：2007-01-25

    申请号：US11529326

    申请日：2006-09-29

    申请人： Satoshi Tanaka ,  Masamichi Tanabe ,  Yasuyuki Okuma ,  Taizo Yamawaki ,  Koichi Yahagi ,  Hiroaki Matsui ,  Robert Henshaw

    发明人： Satoshi Tanaka ,  Masamichi Tanabe ,  Yasuyuki Okuma ,  Taizo Yamawaki ,  Koichi Yahagi ,  Hiroaki Matsui ,  Robert Henshaw

    IPC分类号： H04B1/04 ,  H01Q11/12

    CPC分类号： H03D7/1433 ,  H03C3/40 ,  H03D7/145 ,  H03D7/1458 ,  H03D2200/0025 ,  H03D2200/0033 ,  H03D2200/0043 ,  H03D2200/0047

    摘要： A transmitter is provided which includes a transmitting circuit that does not require a high-performance low noise VCO restricting cost reduction thereof and that can reduce the number of parts without requiring an RF filter. A direct conversion that does not require a transmission VCO is applied to the transmitting circuit. In order to achieve noise reduction in a receiving band, low-pass filters are provided at IQ input sections of a modulator that converts IQ signals into RF signals. In comparison with a conventional transmitter using offset PLL, an external VCO required in addition to an RF integrated circuit, a power amplifier, and a front end circuit is reduced. Even in current transistor performance, by using a filter having rapid waveform characteristics such as a SAW more inexpensive than the VCO, or the like, it is possible to provide a GSM/GSM 1800/GSM1900 triple band transmitter.

    摘要翻译： 提供一种发送器，其包括不需要高性能低噪声VCO来限制其成本降低并且可以减少部件数量而不需要RF滤波器的发送电路。 将不需要传输VCO的直接转换应用于发送电路。 为了实现接收频带的降噪，在将IQ信号转换为RF信号的调制器的IQ输入部分提供低通滤波器。 与使用偏移PLL的常规发射机相比，减少了RF集成电路，功率放大器和前端电路之外需要的外部VCO。 即使在目前的晶体管性能中，通过使用具有比VCO更便宜的SAW等具有快速波形特性的滤波器等，也可以提供GSM / GSM 1800 / GSM1900三频发射机。