Data Transmission Circuit With Adaptive Reference Voltage for Cross-Talk
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Solution Overview
Problem
The increasing number of data transmission lines in semiconductor integrated circuits leads to cross-talk issues, causing phase changes and magnitude alterations in data signals, which disrupt stable data processing operations.
Innovation Solution
A data transmission circuit that includes a plurality of data transmission lines and a data input/output circuit capable of controlling a reference voltage level based on adjacent data signal pattern information, comparing the victim data signal to this level, and outputting a stable data signal by reflecting the reference voltage level into the victim data signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of data transmission lines is increased to transmit more data signals, then the bandwidth and data processing capability are improved, but the space between adjacent data transmission lines is narrowed, causing cross-talk to worsen
Solution Approach 1:
The patent detects cross-talk signals affecting victim data transmission lines and converts these harmful interference signals into useful information by using them to dynamically adjust the reference voltage level. The cross-talk pattern information is utilized to compensate for the interference, transforming the harmful effect into a beneficial correction mechanism that improves data signal stability.
Solution Approach 2:
The patent dynamically changes the reference voltage level parameter based on detected cross-talk patterns from adjacent data transmission lines. By adjusting the reference voltage according to the cross-talk conditions, the system adapts to varying interference levels and maintains reliable data transmission despite the presence of cross-talk.
2Productivity
If the space between data transmission lines is narrowed to increase bandwidth, then the data transmission capacity is improved, but the cross-talk between adjacent lines increases, causing signal integrity to deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where cross-talk patterns from adjacent data transmission lines are continuously detected and used to adjust the reference voltage level. This closed-loop feedback system monitors the interference conditions and dynamically compensates for cross-talk effects, maintaining signal integrity despite the narrow spacing between transmission lines.
Solution Approach 2:
The patent performs preliminary detection of cross-talk patterns from adjacent data transmission lines before processing the victim data signal. By detecting the cross-talk pattern information in advance and using it to set the appropriate reference voltage level, the system prepares the compensation mechanism beforehand, ensuring reliable signal interpretation even with narrow line spacing.
3Speed
If multiple data transmission lines are disposed adjacently to increase data throughput, then the processing speed is improved, but the phase and magnitude of victim data signals are distorted by cross-talk, causing data accuracy to decrease
Solution Approach 1:
The patent converts the harmful cross-talk induced phase and magnitude distortions into useful compensation information. By detecting the cross-talk pattern and using it to adjust the reference voltage level, the system transforms the distortion effects into corrective actions, thereby recovering data signal accuracy despite the presence of adjacent transmission lines.
Solution Approach 2:
The patent dynamically adjusts the reference voltage level parameter based on the detected cross-talk patterns that cause phase and magnitude variations in victim data signals. This parameter change compensates for the distortions introduced by cross-talk, maintaining data signal accuracy while allowing multiple transmission lines to operate in close proximity for high-speed data processing.
Data Source
AI summary
A data transmission circuit may include a plurality of data transmission lines configured to transmit a victim data signal through a victim data transmission line, and transmit an adjacent data signal through an adjacent data transmission line disposed adjacent to the victim data transmission line; and a data input/output circuit configured to control a reference voltage level reflected into the victim data signal on the basis of data pattern information of the adjacent data signal, and compare the victim data signal to the reference voltage level and output the comparison result.