Unlock instant, AI-driven research and patent intelligence for your innovation.

Rapid data point selection for generating eye diagrams

An eye diagram and function technology, applied in the field of fast data point selection, which can solve the problems of not being able to obtain another sample very quickly, and the acquisition rate being low.

Inactive Publication Date: 2006-12-06
AGILENT TECH INC
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sampling oscilloscopes sample an analog signal for a short length of time, ensuring a high detection bandwidth, but they cannot take another sample very quickly, so the acquisition rate is slow

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rapid data point selection for generating eye diagrams
  • Rapid data point selection for generating eye diagrams
  • Rapid data point selection for generating eye diagrams

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] like Figure 5 As shown, in one embodiment, the present invention provides a method of constructing an eye diagram. The method includes (137) counting occurrences of each of a plurality of signal values ​​during a defined time interval, (139) selecting a plurality of occurrence counts, and (141) plotting the selected counts to construct an eye diagram. In some embodiments, selecting multiple counts means selecting all counts. In some embodiments, selecting a plurality of counts means selecting at least one count as a function of at least one other count, which necessarily means discarding some counts.

[0028] The function used to select the count may be an optimization function. The optimization function may be a maximization function, eg maximizing the difference between values, or a minimization function, eg avoiding selecting the smallest count compared to other counts. It can also be a logarithmic function.

[0029] A value can specify the parameters of the sig...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method and apparatus for constructing an eye diagram. Occurrences of a value in a signal are counted [137, 145, 163] during a time interval and the count is plotted [141, 151, 169] to construct the eye diagram. Occurrences of additional values are counted [137] and selected counts [139] are plotted, or another value is selected [147] as a function of the occurrence count and during a subsequent time interval occurrences of the second value are counted [149] and plotted.

Description

technical field [0001] The present invention relates to fast data point selection for generating eye diagrams. Background technique [0002] The components of a high-speed communication system typically communicate with each other by sending serial bit streams of data. The serial bit stream of data is generally a series of binary pulses encoded to convey information. If the pulses in the data stream deteriorate during transmission, it can lead to erroneous information. Therefore, it is important for system designers and maintainers to be able to measure the quality of a communication system to ensure that it is accurately delivering data from source to destination. [0003] In an ideal binary signal, the actual voltage level of a bit will always correspond to a logic "0" or a logic "1", as in figure 1 shown. The binary pulse stream 101 switches instantaneously between a "1" level 103 and a "0" level 105 on a trigger pulse edge of a clock signal 107 . For example, the vo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/20
CPCH04L1/24
Inventor 丹尼尔·Y·艾布拉姆维彻
Owner AGILENT TECH INC