Serial Isolation Signaling Using Delayed Bipolar Pulse Encoding
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Solution Overview
Problem
Current serial isolated communication methods are limited by slow data transmission rates and high power consumption due to the ability to only transfer 1-bit data at a time using direct pulse signals.
Innovation Solution
Encoding isolated communication data with more than two bits into data pulse signals that include a positive pulse, a negative pulse, and a delay of 0 or N pulse widths, allowing for multiple waveforms to represent multi-bit data and improving transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 1-bit data is transmitted using direct pulse signals, then the communication system is simple to implement, but the data transmission rate is slow
Solution Approach 1:
The patent segments multi-bit data into individual bits and processes them in parallel through different pulse width configurations. Each bit is encoded independently with specific pulse characteristics (positive pulse followed by negative pulse with defined delay), allowing simultaneous transmission of multiple bits without complex sequential processing, thus improving transmission rate while maintaining manageable encoding complexity
Solution Approach 2:
The patent introduces time delay as an additional dimension for data encoding. By varying the delay time between positive and negative pulses, the system can represent multiple data states within a single transmission cycle. This temporal dimension allows multi-bit data to be conveyed through pulse timing variations rather than requiring multiple separate transmission channels, thereby increasing data transmission rate without proportionally increasing system complexity
2Use of energy by moving object
If 1-bit data is transmitted at a time using pulse signals, then the encoding process is simple, but the power consumption is high
Solution Approach 1:
The patent merges multiple 1-bit transmission operations into a single multi-bit transmission cycle. By combining several data bits into one grouped transmission using coordinated positive and negative pulses with specific delay relationships, the system reduces the total number of transmission cycles required. This consolidation decreases the cumulative power consumption while maintaining or improving the effective data transmission rate
Solution Approach 2:
The patent employs periodic pulse patterns with regular timing intervals to transmit multi-bit data. The systematic alternation between positive and negative pulses at defined delay intervals creates an efficient transmission rhythm that minimizes idle power consumption between data transmissions. This periodic structure allows the system to transmit maximum data within each active transmission window, reducing overall power usage compared to irregular 1-bit transmissions
3Productivity
If multiple pulse waveforms are used to represent multi-bit data, then the data transmission rate improves, but the signal encoding complexity increases
Solution Approach 1:
The patent incorporates a feedback mechanism where the receiver detects pulse timing and width characteristics and feeds back decoded data to verify accurate reception. The systematic relationship between positive and negative pulse delays provides inherent feedback for error detection, allowing the receiver to identify and correct decoding errors. This feedback loop maintains low decoding complexity by using predictable pulse patterns while still achieving high data transmission rates through multi-bit encoding
Data Source
AI summary
A serial isolated communication method, applied to a transmitter of a serial isolated communication system, includes: obtaining isolated communication data to be transferred; encoding isolated communication data with more than two bits into corresponding data pulse signals according to a preset encoding rule, wherein a group of data pulse signals include a positive pulse, a negative pulse, and a delay of 0 or N pulse widths between the positive pulse and the negative pulse, and N≥1; and transferring the data pulse signals to a receiver. A serial isolated communication method, applied to a receiver of a serial isolated communication system, includes: receiving data pulse signals transferred from a transmitter; decoding the data pulse signals into the isolated communication data according to a preset decoding rule; and obtaining the isolated communication data. Serial isolated communication device and system are further provided.