Memory Read Speed Adjustment Using Delay Comparison Feedback
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Solution Overview
Problem
High reading speeds in memory systems lead to excessive power consumption and reduced yield, necessitating an adjustable reading speed to balance power usage and performance.
Innovation Solution
A method and system that generate a comparison result signal indicating the difference between the output delay and a reference delay, using alternating sequence and reference signals, to adjust the reading speed of the memory system through a comparison circuit and delay control signal, thereby optimizing power consumption and yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the reading speed of the memory system is increased to improve data processing speed, then the operating frequency increases, but the power consumption becomes larger
Solution Approach 1:
The patent implements dynamic adjustment of reading speed by introducing a comparison circuit that continuously monitors output delay and adjusts the reading speed accordingly. The reading speed is not fixed but dynamically adapted based on the difference between actual output delay and reference delay, allowing the system to optimize power consumption while maintaining required performance levels.
Solution Approach 2:
The patent changes the operating parameters (reading speed, output delay) of the memory system based on comparison results. By adjusting the reading speed parameter according to the delay difference detected by the comparison circuit, the system can operate at optimal power levels while meeting performance requirements, rather than running at maximum speed continuously.
2Loss of time
If the output delay is reduced to increase reading speed, then data processing speed improves, but power consumption increases
Solution Approach 1:
The patent implements a feedback mechanism where the comparison circuit continuously compares the actual output delay with the reference delay and uses this information to adjust the reading speed. This closed-loop feedback system ensures that output delay is maintained within acceptable ranges while avoiding excessive power consumption that would result from always minimizing delay.
Solution Approach 2:
The memory system performs self-adjustment of its operating parameters through the integrated comparison circuit and control logic. The system automatically monitors its own output delay and adjusts its reading speed without external intervention, optimizing the balance between output delay and power consumption based on its own performance characteristics.
Data Source
AI summary
The present disclosure relates to adjusting a reading speed of a memory system. A method for adjusting a reading speed of a memory system, including: generating an alternating sequence signal in which high levels and low levels appear alternately, associated with an output delay of the memory system; generating a reference signal having a predetermined frequency and a reference delay; generating a comparison result signal indicating a range of a difference between an output delay and the reference delay based on an alternating sequence signal and a reference signal; and determining whether a value indicated by a comparison result signal is a predetermined value, so as to adjust the reading speed of the memory system based on a determination result.


