Audio Device Bidirectional Data Over Shared Charging Line
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Solution Overview
Problem
Conventional audio devices suffer from one-way data communication, high power consumption, and noise generation due to full-swing voltage signals, limiting efficiency and audio signal quality.
Innovation Solution
Implementing a bidirectional data transmission system where a charger and audio broadcaster can transmit and receive data through the same transmission line, using a charging voltage that does not require full-swing voltages, allowing simultaneous charging and data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If data transmission is performed through full-swing voltage signals, then data communication is achieved, but power consumption increases and noise is generated
Solution Approach 1:
The patent changes the voltage parameter from full-swing signals to small-voltage fluctuations around a stable charging voltage baseline. This allows data transmission through subtle voltage variations that do not consume excessive power or generate noise, resolving the contradiction between power consumption and audio signal quality.
Solution Approach 2:
The patent introduces a stable charging voltage as an intermediary baseline, around which small data-carrying voltage fluctuations occur. This intermediary voltage level enables data transmission without requiring full-swing signals, thereby reducing power consumption and noise while maintaining reliable communication.
2Productivity
If only charger transmits data to audio broadcaster, then simple one-way communication is achieved, but work efficiency cannot be improved
Solution Approach 1:
The patent transforms the static one-way communication system into a dynamic bidirectional system where either the charger or the audio broadcaster can initiate data transmission based on needs. This dynamic flexibility improves work efficiency by enabling both devices to actively participate in data exchange without significantly complicating the overall communication protocol.
3Power
If charging voltage is transmitted through transmission line, then power delivery is achieved, but data transmission capability is lost
Solution Approach 1:
The patent merges power transmission and data transmission functions into a single transmission line. By superimposing small data-carrying voltage fluctuations on top of the charging voltage, the system simultaneously delivers power and information through the same physical medium, eliminating the need for separate data lines.
Solution Approach 2:
The transmission line is designed to perform multiple functions: it serves as both a power delivery conduit and a data communication channel. This multi-functionality is achieved by encoding data in voltage fluctuations that ride on the charging voltage baseline, allowing the same line to handle both tasks efficiently.
Data Source
AI summary
An audio device and a control method thereof are provided. The audio device includes a charger and at least one audio broadcaster. The charger is coupled to a transmission line and is configured to generate a charging voltage. The audio broadcaster is coupled to the charger through the transmission line. The charger transmits the charging voltage to the audio broadcaster through the transmission line, and transmits first data to the audio broadcaster through the transmission line. The audio broadcaster transmits second data to the charger through the transmission line.