Multi-Channel Clock Synchronization Using Feedback Timing Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing multi-channel systems face synchronization failures due to varying time delays in clock signals, leading to setup time and hold time violations, which affect the normal operation of modules within the system.
Innovation Solution
A multi-channel signal synchronization system comprising a clock signal generation module, synchronization signal generation module, and signal receiving modules, where the clock signal generation module generates a first clock signal, which is processed to create a synchronization signal used to synchronize the receiving modules, and a second clock signal is generated based on this synchronization signal to ensure accurate timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clock signal is transmitted to multiple channels in a multi-channel system, then the system can perform sequential logic operations, but varying time delays in different channels cause synchronization failures
Solution Approach 1:
The patent applies preliminary action by generating a synchronization signal in advance based on the first clock signal before distributing clock signals to multiple channels. This synchronization signal is transmitted to each channel beforehand to pre-align the timing, ensuring that all channels start their operations at synchronized time points despite varying transmission delays. The synchronization signal prepares the system state before the actual clock signal distribution occurs.
Solution Approach 2:
The patent implements feedback by transmitting the synchronization signal back to the clock signal generation module from the synchronization signal generation module. This feedback mechanism allows the system to monitor and adjust the synchronization status, ensuring that the generated synchronization signal properly compensates for time delays in each channel. The feedback loop enables continuous optimization of synchronization accuracy.
2Manufacturing precision
If a synchronization signal is transmitted to multiple channels, then channel synchronization can be achieved, but setup time and hold time violations occur due to time delays
Solution Approach 1:
The patent applies parameter changes by adjusting the timing parameters of the synchronization signal based on the first clock signal characteristics. The synchronization signal generation module modifies the phase and timing parameters of the synchronization signal to compensate for varying time delays in different channels. This dynamic parameter adjustment ensures that setup time and hold time requirements are met while achieving precise synchronization across all channels.
3Adaptability or versatility
If clock signals are generated for each channel independently, then each channel can operate autonomously, but synchronization between channels fails
Solution Approach 1:
The patent implements equipotentiality by ensuring that all channels receive the same synchronization signal at the same reference time point. The synchronization signal creates a common timing reference potential across all channels, allowing each channel to maintain autonomous operation while being synchronized to the same temporal baseline. This equalizes the timing potential across all channels, enabling both independence and synchronization.
Data Source
Figure 1A
Figure 1B~2
Figure 3A~3C
AI summary
Embodiments of the present application provide a multi-channel signal synchronization system, circuit, and method. The multi-channel signal synchronization system comprises a clock signal generation module, a synchronization signal generation module, and signal receiving modules; the clock signal generation module is configured to generate a first clock signal; the synchronization signal generation module is configured to generate a synchronization signal based on the first clock signal and transmit the synchronization signal to the clock signal generation module; the clock signal generation module generates second clock signals on the basis of the synchronization signal and transmits the second clock signals to the signal receiving modules; the synchronization signal generation module transmits the synchronization signal to the signal receiving modules.