公开(公告)号：US20130245977A1

公开(公告)日：2013-09-19

申请号：US13875112

申请日：2013-05-01

Applicant: TEKTRONIX, INC.

Inventor： Josiah A. Bartlett ,  Kristie L. Veith ,  Steven K. Sullivan

IPC: G01R13/02

CPC classification number: G01R13/0254 ,  G01R13/029

Abstract: A test and measurement instrument and method for providing post-acquisition trigger control and presentation of associated waveforms on a display. An electrical signal under test is sampled and digitized, and stored in an acquisition memory as a data record. A display device draws a waveform associated with the signal under test. After the acquisition of the digital samples is stopped, a user selects trigger criteria using trigger controls such as a trigger level control. A trigger circuit detects a post-acquisition trigger event in the data record based on the trigger criteria causing an automatic adjustment of the waveform to conform to a time of the post-acquisition trigger event. One or more configurable trigger controls can be used to adjust a display of post-acquisition trigger events and waveforms. Upon resumption of the live-acquisition of data, the live waveform conforms to the newly selected trigger criteria as previewed during the post-acquisition mode.

Abstract translation: 一种用于在显示器上提供采集后触发控制和显示相关波形的测试和测量仪器和方法。 被测电信号被采样和数字化，并作为数据记录存储在采集存储器中。 显示设备绘制与被测信号相关联的波形。 在数字采样的采集停止之后，用户使用诸​​如触发电平控制的触发控制来选择触发条件。 触发电路基于触发标准来检测数据记录中的采集后触发事件，导致波形的自动调整以符合采集后触发事件的时间。 可以使用一个或多个可配置的触发控制来调整采集后触发事件和波形的显示。 在恢复数据的实时采集之后，实时波形符合在采集后模式下预览的新选择的触发条件。