Controlling Q-factor of filters
    1.
    发明授权
    Controlling Q-factor of filters 有权
    控制滤波器的Q因子

    公开(公告)号:US07433668B2

    公开(公告)日:2008-10-07

    申请号:US11021481

    申请日:2004-12-23

    CPC classification number: H04B1/04 H03F3/24 H03H11/12 H04B1/0475 H04B2001/0408

    Abstract: The present invention provides a method and an apparatus for controlling a Q-factor for a filter. The method comprises stabilizing an active feedback to provide a variable feedback in a filter, varying the active feedback based on an input signal to the filter, and producing a desired Q-factor for the filter at a first frequency band, in response to the variable feedback. The method further comprises reconfiguring a center frequency and a bandwidth of the filter based on a channel bandwidth of the input signal to the filter to adjust the Q-factor for the filter in response to a second frequency band different than the first frequency band. By reconfiguring a center frequency and a bandwidth of a filter, the Q-factor for the filter, such as a flexible or reconfigurable filter, may be controlled across a multiplicity of frequency band signals. Using software, for example, a common signal path may be provided for the multiplicity of frequency band signals within a frequency agile radio of a base station by tuning the radio based on a variable feedback through realization of a negative parallel resistance. Thus, tuneability of the Q-factor may provide frequency agile radios that include flexible or reconfigurable filters in a base station to serve different frequency bands without changing hardware. In this way, significant savings associated with frequency agility may be obtained.

    Abstract translation: 本发明提供一种用于控制滤波器的Q因子的方法和装置。 该方法包括稳定主动反馈以在滤波器中提供可变反馈,基于到滤波器的输入信号来改变有源反馈,并响应于变量产生用于滤波器的第一频带的期望Q因子 反馈。 该方法还包括基于输入信号的滤波器的信道带宽来重新配置滤波器的中心频率和带宽,以响应于与第一频带不同的第二频带来调整滤波器的Q因子。 通过重新配置滤波器的中心频率和带宽,可以跨越多个频带信号来控制滤波器的Q因子,例如灵活或可重构滤波器。 例如,使用软件,可以通过基于通过实现负并联电阻的可变反馈调谐无线电来为基站的频率捷变无线电中的多个频带信号提供公共信号路径。 因此,Q因子的可调性可以提供频率敏捷无线电,其包括基站中的灵活或可重新配置的滤波器,以服务不同的频带而不改变硬件。 以这种方式,可以获得与频率捷变相关的显着节省。

    Selectively pretuning and updating a phase lock loop
    2.
    发明申请
    Selectively pretuning and updating a phase lock loop 有权
    选择性地预处理和更新锁相环

    公开(公告)号:US20060145768A1

    公开(公告)日:2006-07-06

    申请号:US11026562

    申请日:2004-12-30

    Inventor: Gerhard Kaminski

    CPC classification number: H03L7/189

    Abstract: The present invention provides a method and an apparatus for selectively pretuning and updating a phase lock loop, deployed in an integrated circuit including an agile radio, such as a wideband or an ultra wideband frequency agile radio in a telecommunication system, for example, a reconfigurable multiband and/or multistandard mobile communication system. In one embodiment, a phase lock loop may comprise a digital storage having a first desired frequency. An oscillator may provide an oscillator frequency and a frequency generator circuit capable of producing at least one control signal may cause the oscillator to adapt the oscillator frequency based on the first desired frequency in response to a trigger signal. A pretune unit may apply a pretune voltage to a tuning element to cause the oscillator to calibrate the oscillator frequency to the first desired frequency. An output voltage may be added at the output of a loop filter to the pretune voltage to tune the output voltage of the loop filter such that to set the oscillator frequency substantially at the first desired frequency. An update unit may automatically determine whether one or more parameters of a phase lock loop unit have changed to dynamically update the pretune voltage.

    Abstract translation: 本发明提供了一种用于选择性地预处理和更新锁相环的方法和装置,其部署在包括敏捷无线电的集成电路中,所述集成电路例如是电信系统中的宽带或超宽带频率捷变无线电,例如可重新配置 多频段和/或多标准移动通信系统。 在一个实施例中,锁相环可以包括具有第一期望频率的数字存储器。 振荡器可以提供振荡器频率,并且能够产生至少一个控制信号的频率发生器电路可以响应于触发信号而使振荡器基于第一期望频率来适应振荡器频率。 预约单元可以向调谐元件施加预调电压,以使振荡器将振荡器频率校准到第一期望频率。 可以在环路滤波器的输出处将输出电压加到预调电压上,以调谐环路滤波器的输出电压,使得将振荡器频率基本上设置在第一所需频率。 更新单元可以自动确定锁相环单元的一个或多个参数是否已经改变以动态地更新预制电压。

    Tunable negative resistance device
    3.
    发明授权
    Tunable negative resistance device 有权
    可调负电阻装置

    公开(公告)号:US06894573B2

    公开(公告)日:2005-05-17

    申请号:US10601797

    申请日:2003-06-23

    Abstract: The invention proposes a device for providing tunable high-frequency and/or radio-frequency comprising within one IC-package at least four signal paths providing at least two input and at least two output ports (rf-port1, rf-port2, rf-prot3, rf-port4) at least one active component (T) and at least one variable passive component (C1, C2) connected at least with an input port of the active component (T), and at least one control path for controllable tuning the at least one variable passive component (C1, C2).

    Abstract translation: 本发明提出了一种用于提供可调谐的高频和/或射频的装置,其包括在一个IC封装内的至少四个信号路径,提供至少两个输入和至少两个输出端口(rf端口1,rf端口2, rf-prot 3,rf-port 4)至少一个有源分量(T)和至少一个可变无源分量(C 1,C 2 2)至少与 有源组件(T)的输入端口以及用于可控调谐至少一个可变无源组件(C 1,C 2)的至少一个控制路径。

    Self-tunable phase lock loop
    4.
    发明授权
    Self-tunable phase lock loop 有权
    自适应锁相环

    公开(公告)号:US07148754B2

    公开(公告)日:2006-12-12

    申请号:US11026562

    申请日:2004-12-30

    Inventor: Gerhard Kaminski

    CPC classification number: H03L7/189

    Abstract: The present invention provides a method and an apparatus for selectively pretuning and updating a phase lock loop, deployed in an integrated circuit including an agile radio, such as a wideband or an ultra wideband frequency agile radio in a telecommunication system, for example, a reconfigurable multiband and/or multistandard mobile communication system. In one embodiment, a phase lock loop may comprise a digital storage having a first desired frequency. An oscillator may provide an oscillator frequency and a frequency generator circuit capable of producing at least one control signal may cause the oscillator to adapt the oscillator frequency based on the first desired frequency in response to a trigger signal. A pretune unit may apply a pretune voltage to a tuning element to cause the oscillator to calibrate the oscillator frequency to the first desired frequency. An output voltage may be added at the output of a loop filter to the pretune voltage to tune the output voltage of the loop filter such that to set the oscillator frequency substantially at the first desired frequency. An update unit may automatically determine whether one or more parameters of a phase lock loop unit have changed to dynamically update the pretune voltage.

    Abstract translation: 本发明提供了一种用于选择性地预处理和更新锁相环的方法和装置,其部署在包括敏捷无线电的集成电路中,所述集成电路例如是电信系统中的宽带或超宽带频率捷变无线电,例如可重新配置 多频段和/或多标准移动通信系统。 在一个实施例中,锁相环可以包括具有第一期望频率的数字存储器。 振荡器可以提供振荡器频率,并且能够产生至少一个控制信号的频率发生器电路可以响应于触发信号而使振荡器基于第一期望频率来适应振荡器频率。 预约单元可以向调谐元件施加预调电压,以使振荡器将振荡器频率校准到第一期望频率。 可以在环路滤波器的输出处将输出电压加到预调电压上,以调谐环路滤波器的输出电压,使得将振荡器频率基本上设置在第一所需频率。 更新单元可以自动确定锁相环单元的一个或多个参数是否已经改变以动态地更新预制电压。

    Controlling Q-factor of filters
    5.
    发明申请
    Controlling Q-factor of filters 有权
    控制滤波器的Q因子

    公开(公告)号:US20060141957A1

    公开(公告)日:2006-06-29

    申请号:US11021481

    申请日:2004-12-23

    CPC classification number: H04B1/04 H03F3/24 H03H11/12 H04B1/0475 H04B2001/0408

    Abstract: The present invention provides a method and an apparatus for controlling a Q-factor for a filter. The method comprises stabilizing an active feedback to provide a variable feedback in a filter, varying the active feedback based on an input signal to the filter, and producing a desired Q-factor for the filter at a first frequency band, in response to the variable feedback. The method further comprises reconfiguring a center frequency and a bandwidth of the filter based on a channel bandwidth of the input signal to the filter to adjust the Q-factor for the filter in response to a second frequency band different than the first frequency band. By reconfiguring a center frequency and a bandwidth of a filter, the Q-factor for the filter, such as a flexible or reconfigurable filter, may be controlled across a multiplicity of frequency band signals. Using software, for example, a common signal path may be provided for the multiplicity of frequency band signals within a frequency agile radio of a base station by tuning the radio based on a variable feedback through realization of a negative parallel resistance. Thus, tuneability of the Q-factor may provide frequency agile radios that include flexible or reconfigurable filters in a base station to serve different frequency bands without changing hardware. In this way, significant savings associated with frequency agility may be obtained.

    Abstract translation: 本发明提供一种用于控制滤波器的Q因子的方法和装置。 该方法包括稳定主动反馈以在滤波器中提供可变反馈,基于到滤波器的输入信号来改变有源反馈,并响应于变量产生用于滤波器的第一频带的期望Q因子 反馈。 该方法还包括基于输入信号的滤波器的信道带宽来重新配置滤波器的中心频率和带宽,以响应于与第一频带不同的第二频带来调整滤波器的Q因子。 通过重新配置滤波器的中心频率和带宽,可以跨越多个频带信号来控制滤波器的Q因子,例如灵活或可重构滤波器。 例如,使用软件,可以通过基于通过实现负并联电阻的可变反馈调谐无线电来为基站的频率捷变无线电中的多个频带信号提供公共信号路径。 因此,Q因子的可调性可以提供频率敏捷无线电,其包括基站中的灵活或可重新配置的滤波器,以服务不同的频带而不改变硬件。 以这种方式,可以获得与频率捷变相关的显着节省。

    Varactor with extended tuning range
    6.
    发明授权
    Varactor with extended tuning range 有权
    变幅器具有扩展调谐范围

    公开(公告)号:US07155182B2

    公开(公告)日:2006-12-26

    申请号:US10601815

    申请日:2003-06-23

    Abstract: The invention proposes a device for high-frequency and/or radio-frequency tuning comprising within one IC-package a first variable capacitor (C1) and at least one second capacitor (C2), each of the at least one second capacitor (C2) being fixed or variable respectively, at least one signal path connected to the first variable capacitor (C1) and providing at least one input and one output port (rf-port1, rf-port2) and at least one controllable switching means (SC2) for individually connecting and disconnecting at least one of the at least one second capacitor (C2) into the signal path or from the signal path, in particular in parallel to the first variable capacitor (C1).

    Abstract translation: 本发明提出了一种用于高频和/或射频调谐的装置,其包括在一个IC封装内的第一可变电容器(C 1> 1)和至少一个第二电容器(C 2' / SUB>),所述至少一个第二电容器(C SUB2)中的每一个分别是固定的或可变的,至少一个连接到第一可变电容器(C1 >)并且提供至少一个输入和一个输出端口(rf端口1,rf端口2)和至少一个可控开关装置(S C2 C2),用于单独地连接和断开以下各项中的至少一个: 所述至少一个第二电容器(C SUB2)进入信号路径或信号路径,特别是并联于第一可变电容器(C SUB1)。

    Pulse-width to voltage converter
    7.
    发明授权
    Pulse-width to voltage converter 有权
    脉冲宽度对电压转换器

    公开(公告)号:US06930558B1

    公开(公告)日:2005-08-16

    申请号:US10786496

    申请日:2004-02-25

    Inventor: Gerhard Kaminski

    CPC classification number: H03L7/0898 H03L7/093

    Abstract: Apparatus for deriving an analog signal from a pulse-width modulated signal, for use in a closed-loop control system such as a phase-locked loop, is arranged to provide non-linear conversion such that the ratio of the magnitude of the analog output signal to the pulse width is greater for larger pulse widths than for smaller pulse widths. In the illustrated apparatus the output signal is derived by an integrator, gated by the pulse-width modulated signals, for integrating, during the duration of a pulse, a signal that increases with time. The increasing signal may be supplied by a positive feedback arrangement from the output of the integrator, or by a feed-forward arrangement from the output of a further gated integrator arranged to integrate a constant signal.

    Abstract translation: 用于从用于诸如锁相环路的闭环控制系统中使用的脉冲宽度调制信号得到模拟信号的装置被设置成提供非线性转换,使得模拟输出的幅度 对于较大的脉冲宽度,脉冲宽度的信号对于较小的脉冲宽度而言较大。 在所示装置中,输出信号由积分器导出,由脉冲宽度调制信号选通,用于在脉冲持续时间期间积分随时间增加的信号。 增加的信号可以通过来自积分器的输出的正反馈布置,或者通过布置成积分恒定信号的另一门控积分器的输出的前馈布置来提供。

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