Earphone Wire Control Device Switching Path for Simultaneous Recording
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Solution Overview
Problem
Conventional earphones cannot record voice information when the wire control device button is pressed due to shared channel usage, preventing simultaneous operation of the microphone and wire control device.
Innovation Solution
An earphone wire control device with a switching unit, first and second signal generating units, and a microphone, where the switching unit connects these components in series to form paths that can be switched to allow recording start and stop signals to be generated and transmitted, enabling the microphone to function while the button is pressed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the wire control device and microphone share the same channel, then the device complexity is reduced, but the microphone cannot function when the wire control device button is pressed
Solution Approach 1:
The patent divides the shared channel into multiple independent paths by introducing a switching unit. The switching unit segments the single channel into at least a first path (for wire control device) and a second path (for microphone), allowing simultaneous independent operation of both functions without interference.
2Adaptability or versatility
If a switching unit with multiple paths is introduced, then the microphone can function while the wire control device button is pressed, but the device complexity increases
Solution Approach 1:
The switching unit is designed as a multi-functional component that can dynamically connect different signal sources (wire control device or microphone) to the same output channel. This universal switching mechanism allows the system to perform multiple operations simultaneously through a single integrated control structure, minimizing the increase in overall device complexity.
Data Source
AI summary
An earphone wire control device, an earphone, a voice recording system and a voice recording system and method. When a switching unit turns on a first path, a microphone path is short-circuited, a first signal generating unit generates a recording start signal and cuts off the first path after generating the recording start signal so that the microphone path is turned on. When the switching unit turns on a second path, the microphone path is short-circuited, a second signal generating unit generates a recording stop signal and cuts off the second path after generating the recording stop signal.