Pulse Width Control for Reliable Memory Signal Reception
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Signal distortion due to line characteristics between semiconductor memory devices and memory controllers leads to decreased data transmission speed and reliability, making it challenging to securely identify data bits.
Innovation Solution
A pulse width controller adjusts the pulse width of data signals based on previous data bits, ensuring that data signals rise or fall at optimal time points, thereby maintaining an effective margin for data identification and improving reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If data signals are transmitted through signal lines between semiconductor memory devices and memory controllers, then data transmission is enabled, but signal distortion occurs due to line characteristics
Solution Approach 1:
The pulse width controller adjusts the pulse width of data signals in advance before transmission, based on predicted line characteristics and previous data patterns. This preliminary adjustment ensures that signals maintain optimal characteristics throughout transmission, preventing distortion before it occurs and maintaining both high speed and reliability
Solution Approach 2:
The system uses feedback from previously received data bits to dynamically adjust the pulse width of current data signals. The controller monitors transmission quality and continuously optimizes pulse widths based on observed line characteristics, creating a closed-loop system that maintains reliability while supporting high transmission speeds
2Reliability
If signal transmission is performed without pulse width adjustment, then device complexity is reduced, but data bit identification becomes unreliable
Solution Approach 1:
The pulse width controller dynamically changes the temporal parameter (pulse width) of data signals based on line characteristics and previous data patterns. By adjusting this single critical parameter, the system achieves reliable data bit identification without requiring complex multi-dimensional signal processing, thus maintaining low device complexity while improving reliability
Data Source
AI summary
An operation method of a signal receiver includes sequentially receiving 0-th and first bits through one signal line, and adjusting a width of any one of a first high duration and a first low duration of a first signal corresponding to the first bit, based on values of the 0-th and first bits, when the values of the 0-th and first bits are identical to each other.