Voice Signal Extraction via Intermediary Connection Unit
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Solution Overview
Problem
Conventional voice signal input and output devices for smart devices, such as smartphones, suffer from limitations in sound quality and interaction between output and input signals due to independent electrical structures of ear receivers and microphones, leading to distortion and loss during voice processing and recording.
Innovation Solution
A voice signal processing device with integrated output and input terminals connected through a main body on a wire, featuring a connection unit that extracts and processes voice signals directly, reducing physical propagation and distortion by using an extracted signal control unit to manage signal levels and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sound is output from built-in speaker or ear receiver and recorded through air propagation, then voice signal can be captured, but volume and quality are degraded due to loss and distortion
Solution Approach 1:
The patent introduces an intermediary mechanism - the connection unit with extracted signal control unit - that mediates between the output terminal and input terminal. This intermediary extracts the voice signal directly from the output wire and injects it into the input wire, eliminating the need for air propagation and physical sound travel, thereby preventing loss and distortion.
Solution Approach 2:
The patent replaces the mechanical/acoustic system of sound propagation through air with an electrical signal transmission system. Instead of converting electrical signals to acoustic waves and back, the system maintains signals in electrical form throughout, substituting mechanical sound propagation with direct electrical connection and signal extraction.
2Adaptability or versatility
If ear receiver and microphone have independent electrical structures, then device structure is simple, but interaction between output and input signals cannot be achieved
Solution Approach 1:
The patent merges the output and input electrical structures through the connection unit, which physically connects the output wire and input wire. This merging enables interaction between output and input signals while maintaining relative structural simplicity by integrating functions into a single connection unit rather than adding separate complex systems.
Solution Approach 2:
The connection unit serves multiple functions: it extracts voice signals from the output wire, controls signal levels, filters noise, and injects processed signals into the input wire. This multi-functionality achieves signal interaction capability without proportionally increasing device complexity, as one component performs multiple operations.
3Reliability
If voice signal is extracted and returned through wire connection, then loss and distortion are minimized, but device structure becomes more complex
Solution Approach 1:
The connection unit acts as an intermediary component that implements voice signal extraction and return functionality. By concentrating all necessary functions (extraction, control, filtering, injection) into this single intermediary device, the patent achieves high signal fidelity without dispersing complexity across multiple separate components.
Solution Approach 2:
The connection unit can be integrated into the existing earphone structure, with the extracted signal control unit nested within the connection unit. This nesting approach embeds the complexity within a compact form factor, maintaining reliability while minimizing the apparent increase in overall device complexity.
Data Source
AI summary
A voice signal processing device connected to a smart device is provided. The voice signal processing device is connected to a smart phone, a tablet computer or the like and includes a voice signal input and output function mounted thereon. The voice signal processing device returns a sound generated by the smart device or a sound generated from the exterior into the smart device as a high-quality sound and is configured to extract a voice signal from a wire coupled to the smart device and the ear receiver and configured to input the extracted voice signal into the input terminal of the microphone of the smart device. A voice signal output from the smart device is configured to be extracted and conveniently input into the smart device and loss and distortion is minimized in the process of extracting and returning the voice signal.