PAM Signal Analysis Device Using Segmented Eye Diagrams
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Solution Overview
Problem
Measurement devices struggle to effectively analyze pulse amplitude modulated (PAM) signals with multiple characterizing signal levels due to overcrowding of eye diagrams, making it difficult for users to identify relevant details.
Innovation Solution
A measurement application device with a signal interface, analyzer, and processor that breaks down complex eye diagrams into individual sub-diagrams, allowing users to interactively select and analyze specific sub-diagrams, including eye diagrams and histograms, through a user-friendly interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional eye diagrams are used to display PAM signals with multiple signal levels, then all signal levels are shown in a single diagram, but the display area becomes insufficient and details cannot be identified
Solution Approach 1:
The patent divides the complex eye diagram into multiple sub-diagrams, each representing a specific signal level or level transition. This segmentation allows detailed analysis of individual signal characteristics without overwhelming the display area, directly resolving the contradiction between showing all signal details and maintaining manageable display space.
2Quantity of substance
If the number of signal levels in PAM signals increases, then more information is available for analysis, but the eye diagram becomes overcrowded and harder to interpret
Solution Approach 1:
By segmenting the eye diagram into sub-diagrams for different signal levels and transitions, the patent makes it easier to analyze complex multi-level PAM signals. Users can focus on specific level transitions of interest without being overwhelmed by all signal levels simultaneously, improving ease of operation while preserving complete signal information.
Solution Approach 2:
The patent organizes sub-diagrams in a structured arrangement that adds spatial organization to the display. This dimensional organization of multiple sub-diagrams allows users to systematically navigate through different signal level information, making complex multi-level signal analysis more manageable.
3Loss of information
If multiple eye diagrams are displayed simultaneously to show all signal level transitions, then complete signal coverage is achieved, but the display becomes too crowded for detailed analysis
Solution Approach 1:
The patent segments the complete eye diagram into multiple manageable sub-diagrams, each showing specific signal level transitions. This segmentation maintains complete signal level coverage while reducing the visual complexity of any single displayed diagram, allowing users to analyze individual transitions in detail.
Solution Approach 2:
The patent implements dynamic selection and display of sub-diagrams based on user interaction. Users can select which sub-diagram to view, and the system dynamically updates the display to show the selected sub-diagram with full screen real estate, optimizing the balance between complete coverage and analytical clarity.
Data Source
AI summary
The present disclosure provides a measurement application device, comprising a signal interface that is configured to receive a signal that comprises at least two characterizing signal levels, a signal analyzer that is coupled to the signal interface and that is configured to analyze the received signal to determine individual sub-diagrams for the received signal, wherein each one of the sub-diagrams comprises a predetermined diagram type, a diagram processor coupled to the signal analyzer and a display, and arranges the sub-diagrams in a diagram arrangement where each one of the sub-diagrams is assigned a predetermined position in the diagram arrangement, and to control the display to display at least one of the sub-diagrams, and a user interface that receives user input with regard to the diagram arrangement where the diagram processor controls the displaying of the diagram arrangement by the display according to the user input.