-
公开(公告)号：US5617454A
公开(公告)日：1997-04-01
申请号：US503076
申请日：1995-07-14
CPC分类号： H04J3/076 , H03L7/0995 , H03L7/0997
摘要： The invention relates to a transmission system comprising a phase-locked loop (12) which includes a phase comparator (15) for comparing an oscillator signal with a reference signal and for generating a comparison signal, and an oscillator which is provided for receiving a control signal derived from the comparison signal. The oscillator arranged as a ring oscillator (14) comprises at least one delay element (27 to 31) included in a closed circuit. At least one delay element (27 to 30) has at least two different adjustable delay times. A controller (19) is provided for setting the delay times of at least one delay element (27 to 30) in dependence on the comparison signal.
摘要翻译： 本发明涉及一种包括锁相环（12）的传输系统，该锁相环（12）包括用于将振荡器信号与参考信号进行比较并用于产生比较信号的相位比较器（15），以及用于接收控制 来自比较信号的信号。 设置为环形振荡器（14）的振荡器包括包含在闭合电路中的至少一个延迟元件（27至31）。 至少一个延迟元件（27至30）具有至少两个不同的可调延迟时间。 提供控制器（19），用于根据比较信号设置至少一个延迟元件（27至30）的延迟时间。
-
公开(公告)号：US06859912B2
公开(公告)日：2005-02-22
申请号：US10351918
申请日：2003-01-27
CPC分类号： H04L7/0338 , H04L7/005
摘要： Clock recovery from transmitted data signals is carried out entirely digitally, and in a manner that is essentially insensitive to dynamic changes in the phase of the data signal. To this end, at least four phase-shifted sample signals are produced from a predetermined time signal. At least two of these phase-shifted sample signals are selected as a function of the respective phase angles with respect to the data signal, and in each case are supplied separately to a device for time sampling of the data signal with the selected sample signal. One of the devices in each case is connected to an output device for the data signal as a function of the respective phase separations between the data signal and the selected phase-shifted sample signals.
摘要翻译： 从发送的数据信号的时钟恢复完全以数字方式进行，并且以对数据信号的相位的动态变化基本上不敏感的方式进行。 为此，从预定时间信号产生至少四个相移采样信号。 这些相移采样信号中的至少两个被选择为相对于数据信号的各个相位角的函数，并且在每种情况下分别被提供给用于使用所选择的采样信号对数据信号进行时间采样的设备。 根据数据信号和所选择的相移采样信号之间的各自的相位分离，每种情况下的一个装置连接到用于数据信号的输出装置。
-
搜索结果
2 条记录 (耗时 0.023 秒)
