Tree-Structured Test Backplanes for Low-Delay Synchronization
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Solution Overview
Problem
Signal delay increases proportionally with the number of units connected in a daisy-chain configuration.
Innovation Solution
A test system with a tree structure of backplanes and an integrated controller that connects units, allowing for reduced signal delay and improved synchronization accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If units are connected in a daisy-chain configuration, then the system can be easily extended by adding units, but the signal delay increases proportionally with the number of units
Solution Approach 1:
The system is segmented into multiple backplanes, each managing a subset of units. This allows the system to be divided into manageable segments that can be independently controlled, reducing the signal propagation distance and delay while maintaining scalability.
Solution Approach 2:
The patent transitions from a one-dimensional daisy-chain topology to a multi-dimensional hierarchical structure with multiple backplanes. This dimensional change allows signals to be distributed through parallel paths, reducing the overall signal delay while maintaining system scalability.
2Loss of time
If multiple backplanes are connected in a tree structure, then signal delay is reduced, but the device complexity increases
Solution Approach 1:
Each backplane is designed with universal functionality to control multiple units, reducing the need for specialized components. This multi-functionality simplifies the overall system structure while maintaining the hierarchical tree configuration that reduces signal delay.
Solution Approach 2:
The patent changes the structural parameter from a linear daisy-chain to a hierarchical tree structure with multiple levels. This parameter change optimizes the signal path length while the standardized backplane design keeps the complexity manageable through repetition of proven modules.
Data Source
AI summary
Provided is a system for use in synchronizing a plurality of connected units.The system includes a plurality of backplanes connected to at least one unit used in a characteristic test of a device and an integrated controller that controls the at least one unit. The plurality of backplanes are connected to each other in a tree structure.