Control loop having an amplifier arrangement
    21.
    发明授权
    Control loop having an amplifier arrangement 有权
    具有放大器装置的控制回路

    公开(公告)号:US07145388B2

    公开(公告)日:2006-12-05

    申请号:US10924566

    申请日:2004-08-24

    IPC分类号: H03F3/45

    CPC分类号: H03G1/0023

    摘要: A control loop having an amplifier arrangement that has a variable gain is specified. The amplifier has an output for outputting a signal representing the present gain. The control loop comprises a combination unit, which combines the signal at the additional output with a threshold value in such a way as to avoid a kink in the characteristic curve in the region of the highest or lowest variable gain. The advantages of an amplifier that is voltage-linear within wide ranges can thus be united with low switching transients.

    摘要翻译: 指定具有可变增益的放大器装置的控制环路。 放大器具有用于输出表示当前增益的信号的输出。 控制回路包括组合单元,该组合单元将附加输出处的信号与阈值组合,以避免在最高或最低可变增益区域中的特性曲线中的扭结。 因此,在宽范围内电压线性的放大器的优点可以与低开关瞬变相结合。

    Oscillator circuit, in particular for mobile radio
    23.
    发明申请
    Oscillator circuit, in particular for mobile radio 有权
    振荡电路,特别适用于移动无线电

    公开(公告)号:US20060226918A1

    公开(公告)日:2006-10-12

    申请号:US11394013

    申请日:2006-03-30

    IPC分类号: H03L7/00

    摘要: An oscillator is disclosed that is tunable to discrete values, and includes a tuning element which can be connected via a switching device. A rectifier circuit is connected to the output of the oscillator and forms a clock signal from the oscillator signal. The oscillator circuit contains a phase delay circuit having a switching input, a clock signal input which is coupled to the output of the rectifier circuit, and a switching output coupled to the switching device. The phase delay circuit has a comparison circuit for comparison of a phase of the clock signal that is applied to the signal input with a reference phase. This phase delay circuit is designed to emit a switching signal after application of an activation signal to the switching input and after the phase of the clock signal which is applied to the signal input matches the reference phase. In consequence, the switching process is delayed until the step-function response of the output signal of the oscillator does not cause a sudden phase change in the clock signal.

    摘要翻译: 公开了可调谐到离散值的振荡器,并且包括可经由开关装置连接的调谐元件。 整流电路连接到振荡器的输出端并形成来自振荡器信号的时钟信号。 振荡器电路包括具有开关输入的相位延迟电路,耦合到整流器电路的输出的时钟信号输入和耦合到开关器件的开关输出。 相位延迟电路具有用于比较施加到具有参考相位的信号输入的时钟信号的相位的比较电路。 该相位延迟电路被设计成在施加到开关输入的激活信号之后并且在施加到信号输入的时钟信号的相位与参考相位匹配之后发出切换信号。 因此,切换过程被延迟,直到振荡器的输出信号的阶跃函数响应不会引起时钟信号的突然相位变化。

    Digitally controlled oscillator circuit
    24.
    发明申请
    Digitally controlled oscillator circuit 审中-公开
    数字振荡电路

    公开(公告)号:US20050185487A1

    公开(公告)日:2005-08-25

    申请号:US11053530

    申请日:2005-02-08

    摘要: A digitally controlled oscillator circuit for generating a signal at variable frequency is provided. The circuit has a data input for a digital control word and a capacitive circuit for varying the variable frequency of the signal. The capacitive circuit comprises a control input for a control signal and its total capacitance varies on the basis of the control signal. The data input and the control input have a mapping device coupled between them. This device is set up such that it ascertains the control signal from the digital control word.

    摘要翻译: 提供了一种用于产生可变频率信号的数字控制振荡器电路。 电路具有用于数字控制字的数据输入和用于改变信号的可变频率的电容电路。 电容电路包括用于控制信号的控制输入,其总电容根据控制信号而变化。 数据输入和控制输入具有耦合在它们之间的映射设备。 该装置设置成从数字控制字确定控制信号。

    Control loop having an amplifier arrangement
    25.
    发明申请
    Control loop having an amplifier arrangement 有权
    具有放大器装置的控制回路

    公开(公告)号:US20050073363A1

    公开(公告)日:2005-04-07

    申请号:US10924566

    申请日:2004-08-24

    IPC分类号: H03G1/00 H03F3/45

    CPC分类号: H03G1/0023

    摘要: A control loop having an amplifier arrangement that has a variable gain is specified. The amplifier has an output for outputting a signal representing the present gain. The control loop comprises a combination unit, which combines the signal at the additional output with a threshold value in such a way as to avoid a kink in the characteristic curve in the region of the highest or lowest variable gain. The advantages of an amplifier that is voltage-linear within wide ranges can thus be united with low switching transients.

    摘要翻译: 指定具有可变增益的放大器装置的控制环路。 放大器具有用于输出表示当前增益的信号的输出。 控制回路包括组合单元,该组合单元将附加输出处的信号与阈值组合,以避免在最高或最低可变增益区域中的特性曲线中的扭结。 因此,在宽范围内电压线性的放大器的优点可以与低开关瞬变相结合。

    Signal Generator for a Transmitter or a Receiver, a Transmitter and a Receiver
    26.
    发明申请
    Signal Generator for a Transmitter or a Receiver, a Transmitter and a Receiver 有权
    用于发射机或接收机的信号发生器,发射机和接收机

    公开(公告)号:US20120195239A1

    公开(公告)日:2012-08-02

    申请号:US13019358

    申请日:2011-02-02

    IPC分类号: H04J1/00 H04B1/04 H04B1/18

    摘要: A signal generator for a transmitter or a receiver for transmitting or receiving RF-signals according to a given communication protocol includes an oscillator and a mismatch compensator. The oscillator is configured to provide a signal generator output signal having a signal generator output frequency and comprises a fine tuning circuit for providing a fine adjustment of the signal generator output frequency based on a fine tuning signal and a coarse tuning circuit for providing a course adjustment of the signal generator output frequency based on a coarse tuning signal. The mismatch compensator is configured to receive the signal generator output signal and compensate a frequency mismatch between a desired signal generator output frequency and the signal generator output frequency generated by the oscillator by providing the fine tuning signal for changing the state of the fine tuning circuit of the oscillator and by providing the coarse tuning signal for changing a state of the coarse tuning circuit of the oscillator. The mismatch compensator provides the coarse tuning signal during a guard period defined in the given communication protocol, during which no RF-signals are transmitted by the transmitter or no RF-signals are to be received by the receiver, such that the state of the coarse tuning circuit is changed within the guard period.

    摘要翻译: 用于根据给定通信协议发送或接收RF信号的发射机或接收机的信号发生器包括振荡器和不匹配补偿器。 振荡器被配置为提供具有信号发生器输出频率的信号发生器输出信号,并且包括微调电路,用于基于微调信号和粗调谐电路提供信号发生器输出频率的微调,以提供路线调整 基于粗调谐信号的信号发生器输出频率。 失配补偿器被配置为接收信号发生器输出信号,并且通过提供用于改变微调电路的状态的微调信号来补偿期望的信号发生器输出频率与由振荡器产生的信号发生器输出频率之间的频率失配 并且通过提供用于改变振荡器的粗调电路的状态的粗调谐信号。 不匹配补偿器在给定通信协议中定义的保护周期期间提供粗调谐信号,在此期间,发射机不发射RF信号,或接收机不接收RF信号,使得粗略的状态 调谐电路在保护期内发生变化。

    Oscillator circuit, in particular for mobile radio
    27.
    发明授权
    Oscillator circuit, in particular for mobile radio 有权
    振荡电路,特别适用于移动无线电

    公开(公告)号:US07777578B2

    公开(公告)日:2010-08-17

    申请号:US11394013

    申请日:2006-03-30

    IPC分类号: H03L7/085

    摘要: An oscillator is disclosed that is tunable to discrete values, and includes a tuning element which can be connected via a switching device. A rectifier circuit is connected to the output of the oscillator and forms a clock signal from the oscillator signal. The oscillator circuit contains a phase delay circuit having a switching input, a clock signal input which is coupled to the output of the rectifier circuit, and a switching output coupled to the switching device. The phase delay circuit has a comparison circuit for comparison of a phase of the clock signal that is applied to the signal input with a reference phase. This phase delay circuit is designed to emit a switching signal after application of an activation signal to the switching input and after the phase of the clock signal which is applied to the signal input matches the reference phase. In consequence, the switching process is delayed until the step-function response of the output signal of the oscillator does not cause a sudden phase change in the clock signal.

    摘要翻译: 公开了可调谐到离散值的振荡器,并且包括可经由开关装置连接的调谐元件。 整流电路连接到振荡器的输出端并形成来自振荡器信号的时钟信号。 振荡器电路包括具有开关输入的相位延迟电路,耦合到整流器电路的输出的时钟信号输入和耦合到开关器件的开关输出。 相位延迟电路具有用于比较施加到具有参考相位的信号输入的时钟信号的相位的比较电路。 该相位延迟电路被设计成在施加到开关输入的激活信号之后并且在施加到信号输入的时钟信号的相位与参考相位匹配之后发出切换信号。 因此,切换过程被延迟,直到振荡器的输出信号的阶跃函数响应不会引起时钟信号的突然相位变化。

    Signal generator for a transmitter or a receiver, a transmitter and a receiver
    28.
    发明授权
    Signal generator for a transmitter or a receiver, a transmitter and a receiver 有权
    用于发射机或接收机,发射机和接收机的信号发生器

    公开(公告)号:US08890635B2

    公开(公告)日:2014-11-18

    申请号:US13019358

    申请日:2011-02-02

    摘要: A signal generator for a transmitter or a receiver for transmitting or receiving RF-signals according to a given communication protocol includes an oscillator and a mismatch compensator. The oscillator is configured to provide a signal generator output signal having a signal generator output frequency and comprises a fine tuning circuit for providing a fine adjustment of the signal generator output frequency based on a fine tuning signal and a coarse tuning circuit for providing a course adjustment of the signal generator output frequency based on a coarse tuning signal. The mismatch compensator is configured to receive the signal generator output signal and compensate a frequency mismatch between a desired signal generator output frequency and the signal generator output frequency generated by the oscillator by providing the fine tuning signal for changing the state of the fine tuning circuit of the oscillator and by providing the coarse tuning signal for changing a state of the coarse tuning circuit of the oscillator. The mismatch compensator provides the coarse tuning signal during a guard period defined in the given communication protocol, during which no RF-signals are transmitted by the transmitter or no RF-signals are to be received by the receiver, such that the state of the coarse tuning circuit is changed within the guard period.

    摘要翻译: 用于根据给定通信协议发送或接收RF信号的发射机或接收机的信号发生器包括振荡器和不匹配补偿器。 振荡器被配置为提供具有信号发生器输出频率的信号发生器输出信号,并且包括微调电路,用于基于微调信号和粗调谐电路提供信号发生器输出频率的微调,以提供路线调整 基于粗调谐信号的信号发生器输出频率。 失配补偿器被配置为接收信号发生器输出信号,并且通过提供用于改变微调电路的状态的微调信号来补偿期望的信号发生器输出频率与由振荡器产生的信号发生器输出频率之间的频率失配 并且通过提供用于改变振荡器的粗调电路的状态的粗调谐信号。 不匹配补偿器在给定通信协议中定义的保护周期期间提供粗调谐信号,在此期间,发射机不发射RF信号,或接收机不接收RF信号,使得粗略的状态 调谐电路在保护期内发生变化。

    SIGNAL DELAY ESTIMATOR WITH ABSOLUTE DELAY AMOUNT AND DIRECTION ESTIMATION
    29.
    发明申请
    SIGNAL DELAY ESTIMATOR WITH ABSOLUTE DELAY AMOUNT AND DIRECTION ESTIMATION 有权
    信号延迟估计器,具有绝对的延迟量和方向估计

    公开(公告)号:US20140301514A1

    公开(公告)日:2014-10-09

    申请号:US14312024

    申请日:2014-06-23

    IPC分类号: H04L7/033 H04L7/00

    摘要: A signal delay estimator includes an adjustable delay element for delaying a first signal to obtain a delayed first signal, a delay amount estimator for estimating a delay amount between the delayed first signal and a second signal that is similar and delayed relative to the first signal, and a leading signal determiner for determining whether the delayed first signal leads the second signal or vice versa, and for generating a corresponding binary signal. A selective inverter is provided for selectively inverting the delay amount depending on the binary signal. The signal delay estimator also includes a feedback element to the adjustable delay element for controlling a delay based on an output of the selective inverter. Another exemplary signal delay estimator includes a closed control loop with an adjustable delay element and separate first and second processing paths for absolute delay amount and delay direction, respectively.

    摘要翻译: 信号延迟估计器包括用于延迟第一信号以获得延迟的第一信号的可调节延迟元件,用于估计延迟的第一信号和相对于第一信号相似和延迟的第二信号之间的延迟量的延迟量估计器, 以及用于确定延迟的第一信号是否导致第二信号或反之亦然以及用于产生相应的二进制信号的前导信号确定器。 提供选择性反相器,用于根据二进制信号选择性地反转延迟量。 信号延迟估计器还包括到可调节延迟元件的反馈元件,用于基于选择性反相器的输出来控制延迟。 另一示例性信号延迟估计器包括分别具有可调节延迟元件的闭合控制回路和用于绝对延迟量和延迟方向的单独的第一和第二处理路径。