Memory Module Persistent Calibration for Stable Signal Transmission
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Solution Overview
Problem
Existing memory modules require periodic training and calibration due to process variations, which can impact signal transmission and reception, leading to inefficiencies and resource overhead.
Innovation Solution
Implementing a memory module with persistent calibration by performing training and calibration operations during manufacturing, storing settings in internal memory, and using a memory interface chip to configure internal links based on predetermined settings, isolating them from external variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic training and calibration are performed during operation, then signal transmission reliability is maintained, but system productivity and resource availability deteriorate due to operational overhead
Solution Approach 1:
The patent performs training and calibration operations during the manufacturing process before the memory module is deployed. This preliminary action establishes optimal signal transmission parameters in advance, eliminating the need for periodic recalibration during operation. The calibration settings are stored in non-volatile memory and automatically applied when the module is powered on, thus maintaining reliability without consuming operational productivity.
2Reliability
If training and calibration operations are performed during operation, then signal quality is maintained, but resource overhead and operational complexity increase
Solution Approach 1:
The patent moves the complex training and calibration operations to the manufacturing stage, where they can be performed once under controlled conditions. The results are stored in non-volatile memory within the memory module. During operation, the module simply applies the pre-determined calibration settings without requiring additional training operations, thereby maintaining signal quality while significantly reducing operational complexity.
3Stability of the object's composition
If internal communication links are isolated from external variations, then signal transmission stability is improved, but adaptability to changing operating conditions deteriorates
Solution Approach 1:
The patent performs comprehensive training and calibration during manufacturing that accounts for various operating conditions. The calibration settings are determined in advance to provide stable signal transmission across different temperatures and voltages. By establishing robust calibration parameters during manufacturing, the system achieves both stability and adaptability without requiring continuous adjustment during operation.
Data Source
AI summary
A memory module includes one or more memory devices and a memory interface chip coupled to the one or more memory devices via one or more communication links. The memory module further includes a persistent memory storing one or more sets of training and calibration settings corresponding to communication over the one or more communication links, where the one or more sets of training and calibration settings are stored in the persistent memory before operation of the memory module and used to configure one or more components of the memory interface chip during the operation of the memory module.