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    Precision timing generation
    7.
    发明授权
    Precision timing generation 有权
    精确定时生成

    公开(公告)号：US07221724B2

    公开(公告)日：2007-05-22

    申请号：US10268022

    申请日：2002-10-10

    Applicant: Stephan Schell

    Inventor： Stephan Schell

    IPC: H04L7/00

    CPC classification number: H03L7/0996 ,  H03K5/133 ,  H03K5/15013 ,  H03L7/0998 ,  H04B1/7183

    Abstract: A precision timing generator and an associate method provide a precise clock signal based on a reference clock signal. Using the reference clock signal in a phase locked loop or delay locked loop, a number of clock signals of equal frequency are generated separated consecutively by a known phase. Two of these clock signals of consecutive phases are selected for interpolation for higher precision according to predetermined weights. The resulting interpolated clock signal has a phase offset that is intermediate between the selected clock signals in proportion to the predetermined weights. In one implementation, a second interpolated clock signal is created by selecting and weighting a second group of clock signals using independent selection and weights. The two interpolated clock signals are then combined by logic operations to provide a precise clock signal of predetermined duty cycle and phase.

    Abstract translation: 精密定时发生器和关联方法基于参考时钟信号提供精确的时钟信号。 在锁相环或延迟锁定环路中使用参考时钟信号，产生相等频率的多个时钟信号由已知相位连续分离。 根据预定的权重，选择连续相位的这些时钟信号中的两个用于更高精度的插值。 所产生的内插时钟信号具有与预定权重成比例的所选择的时钟信号之间的相位偏移。 在一个实现中，通过使用独立选择和权重选择和加权第二组时钟信号来创建第二内插时钟信号。 然后通过逻辑运算将两个内插时钟信号组合以提供预定占空比和相位的精确时钟信号。

    FREQUENCY TO DIGITAL CONVERSION
    8.
    发明申请
    FREQUENCY TO DIGITAL CONVERSION 有权
    频率到数字转换

    公开(公告)号：US20060109147A1

    公开(公告)日：2006-05-25

    申请号：US10997058

    申请日：2004-11-23

    Applicant: Wendell Sander ,  Stephan Schell ,  Matthew Mow

    Inventor： Wendell Sander ,  Stephan Schell ,  Matthew Mow

    IPC: H03M7/00

    CPC classification number: H03M5/10

    Abstract: A technique of processing an input signal having an input signal phase is disclosed. The technique includes determining a number of transitions of the input signal within a period having a start and an end. The technique includes determining a relative beginning phase of the input signal at the start of the period, which includes generating a first reference signal having a first reference signal frequency and a first reference signal phase synchronized with the start of the period, and detecting a first time interval required for the input signal phase to have a first specified relationship to the first reference signal phase. The technique includes similarly determining a relative ending phase of the input signal at the end of the period. The technique includes determining an input signal temporal characteristic from the number of transitions and the relative beginning phase and the relative ending phase.

    Abstract translation: 公开了一种处理具有输入信号相位的输入信号的技术。 该技术包括在具有开始和结束的时段内确定输入信号的转换次数。 该技术包括确定在该周期开始时输入信号的相对起始相位，其包括产生具有第一参考信号频率的第一参考信号和与周期开始同步的第一参考信号相位，以及检测第一参考信号 输入信号相位与第一参考信号相位具有第一指定关系所需的时间间隔。 该技术包括在周期结束时类似地确定输入信号的相对结束阶段。 该技术包括从转换次数和相对开始阶段和相对结束阶段确定输入信号时间特性。

    High-quality power ramping in a communications transmitter
    9.
    发明申请
    High-quality power ramping in a communications transmitter 有权
    通信发射机中的高质量功率斜坡

    公开(公告)号：US20060003712A1

    公开(公告)日：2006-01-05

    申请号：US11172387

    申请日：2005-06-29

    Applicant: Stephan Schell

    Inventor： Stephan Schell

    IPC: H03C1/62 ,  H01Q11/12

    CPC classification number: H04L27/2017 ,  H03G3/3047 ,  H04B1/0475 ,  H04L27/361

    Abstract: The present invention, generally speaking, provides for control of a modulator, such as a polar modulator or conventional linear modulator, to produce high quality RF signals that ramp quickly from a condition of minimal output power to a condition of information-bearing modulation at a specified output power and back down to the condition of minimal output power. Using a polar modulator, for example, it is theoretically possible to perform ramping without degrading the transient measurements beyond the degradation caused by the information-bearing modulation itself. This ideal can be closely approached in practice. Such ramping can be achieved without the need for extensive unit-by-unit calibration on the manufacturing line.

    Abstract translation: 一般而言，本发明提供了一种诸如极性调制器或常规线性调制器之类的调制器的控制，从而产生高质量的RF信号，该RF信号从最小输出功率的状态快速变化到信号承载调制的状态 指定的输出功率并返回到最小输出功率的条件。 例如，使用极性调制器，在理论上可以执行斜坡而不会使瞬态测量降级超出由信息承载调制本身引起的劣化。 这种理想可以在实践中紧密接触。 这样的斜坡可以实现，而不需要在生产线上进行广泛的逐单元校准。

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