Pulse Ratio Modulation for Self-Synchronized Digital Signaling
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Solution Overview
Problem
Existing communication protocols require large amounts of code and synchronization sources for timing, making them inefficient for signal modulation across mediums.
Innovation Solution
A system and method for signal modulation that transmits digital signals without synchronization, using a transmission device and reception device to determine signal duration and ratio, allowing for lightweight code execution and self-synchronization through voltage or capacitance signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing communication protocols are used, then reliable data communication is achieved, but large amounts of code and synchronization sources are required
Solution Approach 1:
The patent extracts and eliminates the synchronization source requirement from the communication protocol. By using pulse ratio modulation where the ratio of high to low signal duration encodes data bits, the system achieves reliable communication without needing external synchronization signals or complex timing protocols, thereby reducing code complexity while maintaining communication reliability
Solution Approach 2:
The communication system performs self-synchronization through the inherent structure of the pulse ratio modulation scheme. Each transmitted signal contains its own timing information through the alternating high-low voltage pattern, allowing the receiver to automatically detect bit boundaries and communicate reliably without external synchronization sources, thus reducing both code complexity and hardware requirements
2Productivity
If existing communication protocols are used, then data transmission is achieved, but synchronization sources are required for timing
Solution Approach 1:
The patent removes the synchronization source component from the communication system by using pulse ratio modulation. The data is encoded in the ratio of high-voltage to low-voltage signal durations, allowing the receiver to determine bit boundaries inherently from the signal structure itself, eliminating the need for separate synchronization timing mechanisms and improving transmission efficiency
Solution Approach 2:
Instead of using synchronization signals to define timing and then encoding data within those time slots, the patent inverts the approach by using the data encoding itself (pulse duration ratios) to define the timing structure. The high-low voltage alternation pattern carries both timing and data information simultaneously, reducing device complexity while maintaining productivity
Data Source
AI summary
An embodiment in accordance with the present invention provides a system and method of physically modulating a digital signal across a medium. A signal is sent one bit at a time (serially) as a period of high voltage followed by a period of low voltage. The present invention includes several major advantages. One advantage is that the code to execute the method is very lightweight. Another advantage is that the signals require no synchronization source. The signals of the present invention function as their own synchronization.