DRAM Signal Transmission Circuit for Narrow Pulse Filtering
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Solution Overview
Problem
The increasing operating frequency of Dynamic Random Access Memory (DRAM) and the presence of more analog and digital devices in the DRAM and its platform lead to interference with external signals, causing the generation of narrow pulses that affect the accuracy of signal processing.
Innovation Solution
A circuit for signal transmission is introduced, comprising a signal processing circuit and a selection circuit. The signal processing circuit processes the input signal to remove narrow pulses, and the selection circuit, controlled by a control signal, selects either the original or the processed signal for output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the operating frequency of DRAM is increased and more analog and digital devices are added, then the processing capability and functionality are improved, but the external signal becomes susceptible to interference and narrow pulses are generated
Solution Approach 1:
The patent segments the signal path into two separate channels: an original signal path and a processed signal path. The signal processing circuit processes the external signal to remove narrow pulses, creating a cleaned signal path. The selection circuit then selects which path to use, effectively segmenting the signal handling to address interference while maintaining processing capability.
Solution Approach 2:
The selection circuit acts as an intermediary between the original signal and the processed signal. It receives both signals and the control signal, then mediates which signal is output based on the control condition. This intermediary component allows the system to switch between direct signal transmission and processed signal transmission to eliminate narrow pulses.
2Measurement precision
If signal processing is added to remove narrow pulses, then signal accuracy is improved, but device complexity increases
Solution Approach 1:
The patent implements a dynamic signal processing approach where the signal processing circuit and selection circuit are enabled only when narrow pulse interference is detected or expected. The control signal dynamically switches between direct signal passing and processed signal output, allowing the system to adapt to interference conditions without permanently increasing circuit complexity.
Solution Approach 2:
The system changes the processing parameter (signal path selection) based on the presence of narrow pulses. When interference is detected, the system switches to the processed signal path; when no interference is present, it uses the original signal path. This parameter change approach allows accurate signal processing only when needed, minimizing the impact on device complexity.
Data Source
AI summary
A circuit for signal transmission, memory, and method for signal transmission are provided. The circuit includes: a signal processing circuit, configured to receive an input first signal, obtain a second signal by processing the first signal in a preset processing manner, and take the second signal as an output signal of the signal processing circuit; and a selection circuit, configured to receive the input first signal, the second signal and a control signal, and take the first signal or the second signal as an output signal of the selection circuit according to the control signal.