Single-Wire Edge-Encoding for Variable-Time Data Transmission
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Solution Overview
Problem
Existing communication interfaces require multiple transmission wires for data and clock signals, leading to inefficiencies in data transmission, particularly with high-volume data, and poor versatility due to the need for predetermined transmission times.
Innovation Solution
A single-wire transmission method using transition edges to represent data, with trigger and end flags to indicate the start and completion of data sets, allowing for efficient decoding without predetermining transmission time, and reducing the number of pins required in the circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a predetermined transmission time is used for data transmission, then the transmission process is simple to control, but the transmission efficiency is low when data volume is small
Solution Approach 1:
The patent applies dynamics by making the transmission time variable rather than fixed. The system dynamically adjusts the transmission duration based on the actual data volume and the number of transition edges detected. When data volume is small, the transmission completes quickly without waiting for a predetermined time period, thereby improving efficiency while maintaining simplicity through automated time adjustment.
Solution Approach 2:
The patent changes the time parameter from a constant predetermined value to a variable that depends on the data characteristics. By detecting the number of transition edges in the signal, the system determines the actual transmission duration needed, allowing the transmission time parameter to adapt to different data volumes and improve overall efficiency.
2Quantity of substance
If the predetermined transmission time is increased to handle high-volume data, then the data capacity is improved, but the transmission time is excessively long for small data
Solution Approach 1:
The system dynamically adapts the transmission duration to match the data volume. By monitoring transition edges in real-time, the system automatically extends or shortens the transmission period as needed, eliminating the need to increase transmission time for all cases and avoiding excessive waiting for small data transmissions.
Solution Approach 2:
The transmission system performs self-adjustment by automatically detecting the data volume through transition edge counting and autonomously determining the appropriate transmission duration. This self-service mechanism eliminates the need for external control or predetermined time settings, allowing the system to optimize transmission time based on actual data requirements.
3Reliability
If multiple transmission wires are used for data and clock signals, then the signal transmission is reliable, but the circuit complexity and pin count increase
Solution Approach 1:
The patent merges the data transmission and clock signal functions into a single transmission wire. By encoding both information streams into one signal line using transition edge modulation, the system reduces the pin count and circuit complexity while maintaining reliable transmission through the embedded timing information within the transition edges.
Solution Approach 2:
The single transmission wire performs multiple functions simultaneously - it carries both data information and timing/clock signals. The transition edges in the signal serve dual purposes as both data encoding elements and synchronization references, making the transmission line universal and eliminating the need for separate dedicated clock wires.
Data Source
AI summary
A single-wire transmission method, a chip and a communication system are disclosed, wherein the single-wire transmission method comprises: receiving X sets of data to be transmitted, a trigger flag before each set of data to be transmitted and an end flag after each set of data to be transmitted through a single line, wherein X is a positive integer greater than 0, and each set of data to be transmitted is represented by the number of transition edges; confirming the trigger flag; counting the transition edge after confirming the trigger flag to obtain a number of the transition edges, performing a decoding process according to the number of the transition edges until the end flag is received, wherein the transition edges are recounted and the decoding process is re-performed after the end flag is received each time. The data transmission time is shorter, which improves the data transmission efficiency.