Multi-Level Data Transmission Encoding for Compact Circuit Design
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Solution Overview
Problem
Existing data transmission methods face challenges in compact display panel circuitry design due to limited space, leading to inefficiencies in multi-level signal transmission, where encoded signals lack reference levels and do not allow for additional command signals, increasing complexity and error risk.
Innovation Solution
The method involves encoding a 2-bit or 3-bit data signal into three or four ternary/quaternary signals with distinct levels, transmitted through multiple channels, allowing for efficient data transmission with embedded clock signals and reduced circuit complexity by eliminating the need for additional reference voltages and clock recovery circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If encoded multi-level signals are used for data transmission, then data transmission efficiency is improved, but additional reference voltage is required which increases circuit complexity
Solution Approach 1:
The patent merges the data signal and clock signal into a single multi-level signal stream. By encoding data bits into multi-level signals where different signal levels represent different data combinations and transitions between levels indicate clock timing, the system eliminates the need for separate reference voltage and clock signals, thereby reducing circuit complexity while maintaining high transmission efficiency
Solution Approach 2:
The multi-level signal serves multiple functions simultaneously: it carries data information through different signal levels and provides clock synchronization through level transitions. This multi-functionality eliminates the need for separate dedicated reference and clock circuits, resolving the contradiction between transmission efficiency and circuit complexity
2Device complexity
If one-to-one mapping of data to multi-level signals is used, then data transmission is simplified, but no space is left for command signals such as clock signaling information
Solution Approach 1:
The patent combines data signaling and clock signaling into a single integrated multi-level signal system. By using different signal levels to represent data and transitions between levels to indicate clock timing, the system achieves both simple circuit implementation and the ability to transmit command signals without requiring separate dedicated channels
3Measurement precision
If additional reference voltage and clock signals are provided, then signal level determination accuracy is improved, but circuit complexity increases
Solution Approach 1:
The multi-level signal system is self-sufficient, using its own signal levels and transitions to provide both data information and timing reference. The signal levels themselves serve as the reference for determination, and transitions between levels provide the clock timing, eliminating the need for external reference voltages and clock signals while maintaining accurate signal level determination
Data Source
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AI summary
A method for multi-level data transmission includes encoding a data signal to be transmitted into N multi-level signals in accordance with an encoding table, where the data signal is characterized with a stream of binary data segments each of which has a data length of M bits, transmitting simultaneously the N multi-level signals through N data transmission channels, respectively; and decoding the N multi-level signals into the data signal by comparing each two of the N multi-level signals transmitted through the two data transmission channels to obtain a respective bit of the M bits of each binary data segment of the data signal based on comparison between the two corresponding multi-level signals.