公开(公告)号：US20160033309A1

公开(公告)日：2016-02-04

申请号：US14519370

申请日：2014-10-21

Applicant: Tektronix, Inc.

Inventor： Jan P. Peeters Weem ,  Klaus M. Engenhardt ,  Laszlo J. Dobos

IPC: G01D18/00

CPC classification number: G01D18/00 ,  G01R13/0272 ,  G01R31/31709

Abstract: A method for correcting a timing error in a test and measurement instrument. The method includes receiving a clock signal at each of four samplers. The first clock signal is sampled at the first sampler at a first phase, the second clock signal is sampled at the second sampler at a second phase that is 90 degrees offset from the first phase, the third clock signal is sampled at the third sampler at a third phase that is 45 degrees offset from the first phase, and the fourth clock signal is sampled at the fourth sampler at a fourth phase that is 90 degrees offset from the third phase. Each of the outputs from the samplers are digitized and a timing correction is calculated based on the digitized outputs from the digitized outputs.

Abstract translation: 一种用于校正测试和测量仪器中的定时误差的方法。 该方法包括在四个采样器中的每一个处接收时钟信号。 第一时钟信号在第一采样器处以第一相采样，第二时钟信号在第二采样器以与第一相位偏移90度的第二相位采样，第三时钟信号在第三采样器处采样， 第三相位与第一相位偏移45度，第四时钟信号在第四采样器处以与第三相位偏移90度的第四相位被采样。 来自采样器的每个输出被数字化，并且基于来自数字化输出的数字化输出来计算定时校正。

公开(公告)号：US09909907B2

公开(公告)日：2018-03-06

申请号：US14519370

申请日：2014-10-21

Applicant: Tektronix, Inc.

Inventor： Jan P. Peeters Weem ,  Klaus M. Engenhardt ,  Laszlo J. Dobos

IPC: G01D18/00 ,  G01R13/02 ,  G01R31/317

CPC classification number: G01D18/00 ,  G01R13/0272 ,  G01R31/31709

Abstract: A method for correcting a timing error in a test and measurement instrument. The method includes receiving a clock signal at each of four samplers. The first clock signal is sampled at the first sampler at a first phase, the second clock signal is sampled at the second sampler at a second phase that is 90 degrees offset from the first phase, the third clock signal is sampled at the third sampler at a third phase that is 45 degrees offset from the first phase, and the fourth clock signal is sampled at the fourth sampler at a fourth phase that is 90 degrees offset from the third phase. Each of the outputs from the samplers are digitized and a timing correction is calculated based on the digitized outputs from the digitized outputs.