MR Synchronization System Using Wireless Delay Compensation
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Solution Overview
Problem
Current MR systems face challenges with timing and synchronization issues due to the complexity and cost of using multiple cables for RF sub-systems, as traditional wireless technology cannot guarantee accurate timing and synchronization, leading to potential imaging failures.
Innovation Solution
A synchronization system with a central unit and RF transmission channels that includes a delay compensation module, clock controller, and synchronization controller to transmit and adjust clock and synchronization signals, ensuring phase and delay compensation for accurate synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple cables are used for RF sub-system interconnections, then timing and synchronization accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces the mechanical cable-based signal transmission system with a wireless communication system. The central unit transmits timing signals and data to RF transmission channels wirelessly using wireless communication modules, eliminating the need for physical cable connections while maintaining synchronization capability through software-based timing control and delay compensation algorithms.
Solution Approach 2:
The patent introduces a central unit as an intermediary that coordinates timing and synchronization for all RF transmission channels. This central unit generates master timing signals, calculates delay compensations for each wireless channel, and transmits control data to synchronize multiple RF channels without requiring direct cable connections between them.
2Device complexity
If wireless technology is used for RF sub-system interconnection, then device complexity is reduced, but timing and synchronization accuracy deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where the central unit monitors the actual reception timing of wireless signals at each RF transmission channel, compares it with the expected timing, and calculates delay compensation values. This closed-loop feedback system continuously adjusts timing parameters to maintain synchronization accuracy despite wireless transmission variations.
Solution Approach 2:
The patent dynamically adjusts transmission parameters such as timing offsets, delay compensation values, and synchronization timestamps based on measured wireless channel conditions. By changing these parameters in real-time, the system compensates for wireless transmission uncertainties and maintains precise synchronization across all RF channels.
3Manufacturing precision
If more channels are introduced into RF transmitter and receiver subsystem, then imaging quality improves, but system complexity and cost increase
Solution Approach 1:
The patent creates a universal centralized control architecture where a single central unit manages timing and synchronization for all RF transmission and reception channels. This multi-functional central unit handles channel allocation, timing signal generation, delay compensation calculation, and data coordination for multiple channels, eliminating the need for separate cable management and synchronization circuits for each channel pair.
Data Source
AI summary
A synchronization system based on wireless or limited cable interconnection is disclosed, which includes a central unit comprising a delay compensation module, and RF transmission channels. At least one channel comprises a clock controller and a synchronization controller. The central unit transmits a controlled clock signal and a controlled synchronization signal to the at least one channel, and receives a clock echo signal and a synchronization echo signal. The delay compensation module estimates a clock phase compensation based on the controlled clock signal transmitted and the clock echo signal received, and a synchronization delay compensation based on the controlled synchronization signal transmitted and the synchronization echo signal received. The clock controller and the synchronization controller adjusts respectively a clock signal and a synchronization signal received from the at least one channel based on the clock phase compensation and the synchronization delay compensation. MR systems and a synchronization method are also disclosed.