Multi-Level Amplitude Modulation for Wireless Data Transfer
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Solution Overview
Problem
Conventional amplitude modulation systems require large bandwidth and power for start and end of frame logic, leading to data loss during demodulation, especially in wireless data transfer.
Innovation Solution
A system and method for multi-level amplitude modulation and demodulation using a set of three amplitude levels, including a high, low, and frame delimiter amplitude level, with a comparator triggered by the frame delimiter signal to receive and demodulate data frames, reducing data loss and enhancing communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional amplitude modulation with two amplitude levels is used, then the system is simple to implement, but data loss occurs during demodulation
Solution Approach 1:
The patent changes the amplitude parameter from two levels to three levels (high, low, and frame delimiter amplitude levels). This parameter change allows the frame delimiter to be distinctly identified, preventing data loss during demodulation while maintaining system simplicity
2Reliability
If start of frame and end of frame logic is implemented, then frame delimiting is achieved, but large bandwidth and power are required
Solution Approach 1:
The patent merges the frame delimiter function with the amplitude modulation scheme by using a specific amplitude level (frame delimiter amplitude level) that is distinct from high and low data levels. This eliminates the need for separate start and end of frame logic, reducing bandwidth and power requirements
3Productivity
If three amplitude levels are used for modulation, then data transfer rate increases, but system complexity increases
Solution Approach 1:
The patent uses three amplitude levels (high, low, and frame delimiter) to increase data transfer rate. The complexity is managed by clearly defining the amplitude relationships and using a comparator-based detection scheme that simplifies the demodulation process
Data Source
AI summary
The present disclosure relates to system(s) and method(s) for multi-level amplitude modulation and demodulation. The system accepts a frame delimiter signal, when a comparator is triggered upon receiving the frame delimiter signal from a transmitter. Further, the system receives modulated data associated with a data frame from the transmitter. In one aspect, the modulated data may be generated by modulation of the data frame using a set of three amplitude levels. Upon receiving the modulated data, the system demodulates the modulated data to retrieve the data frame along with the frame delimiter signal, which can be used for successive digital logic elements for enhanced performance.