Semiconductor Data Transmission Circuit Timing Control
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Solution Overview
Problem
Existing semiconductor devices face issues with data signal inversion due to noise, particularly when the edges of the data signal and retransmission request signal are close, leading to incorrect restoration in the receiving circuit.
Innovation Solution
A semiconductor device design that generates delayed data and retransmission request signals, outputting pulse signals only at the edges of these signals while prohibiting pulse output during a specified period across the edge of the data signal to prevent incorrect restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a pulse signal is transmitted at the edge of the data signal and retransmission request signal, then data transmission can be achieved, but data signal inversion may occur when the edges are too close
Solution Approach 1:
The patent applies preliminary anti-action by introducing a prohibition mechanism that prevents pulse signal transmission during critical periods. Specifically, when a retransmission request signal edge is detected, the circuit prohibits pulse output during a predetermined period centered on this edge, thereby preventing potential signal inversion before it can occur. This proactive prevention resolves the contradiction by sacrificing some transmission opportunities to ensure signal accuracy.
2Reliability
If pulse signal transmission is prohibited during a specified period, then signal restoration accuracy is improved, but transmission opportunities are lost
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the pulse signal transmission parameters based on the state of the retransmission request signal. The prohibition period is determined by a predetermined time parameter centered on the retransmission request signal edge, allowing the system to adapt transmission behavior to critical timing conditions while maintaining overall transmission efficiency through precise temporal control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively prevents data signal misinterpretation in the receiving circuit, ensuring accurate signal restoration by controlling the timing of pulse signal transmission.
Implementation Method 1
transmit and receive signals using a coil as the insulation coupler
Data Source
AI summary
In a semiconductor device, a transmitting circuit generates a delayed data signal and a first delayed retransmission request signal by delaying a data signal and a first retransmission request signal, respectively, and outputs a pulse signal at an edge of the delayed data signal and the first delayed retransmission request signal and prohibits output of the pulse signal at an edge of the first delayed retransmission request signal during a specified period across an edge of the delayed data signal.