Headset Microphone System with Ambient Mode Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication headsets block out external sounds, which can be undesirable in certain situations, and existing solutions for mitigating this issue are not simple or reliable.
Innovation Solution
A communication headset system that allows users to switch between ambient and communication modes, featuring a control circuit that automatically or manually toggles between ambient sound detection and voice communication, with an ambient microphone positioned to capture surroundings without picking up the user's voice, and the option to add sidetone for hearing one's own voice during calls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the earphone blocks out external sounds to improve communication quality, then the user can concentrate on the two-way communication device, but the user cannot remain aware of ambient sounds
Solution Approach 1:
The system segments the audio signal into two distinct channels: ambient sound captured by the first microphone and communication audio captured by the second microphone. The control circuit selectively routes these segmented signals to the speaker based on the operational mode, allowing independent control of ambient sound and communication audio delivery.
Solution Approach 2:
The system dynamically switches between different operational modes (ambient mode and communication mode) based on user needs or detected conditions. The control circuit adjusts the signal routing in real-time, enabling the earphone to transition from blocking ambient sounds to transmitting them, thereby adaptively resolving the contradiction between communication quality and ambient awareness.
2Loss of information
If the headset provides ambient sound mode to maintain awareness of surroundings, then the user can hear external sounds, but the user cannot concentrate on the two-way communication device with minimum disturbance
Solution Approach 1:
The system employs dynamic mode switching between ambient mode and communication mode. In communication mode, the control circuit prioritizes the communication audio signal from the second microphone while suppressing ambient sound, ensuring minimum disturbance for clear communication. This dynamic adjustment resolves the contradiction by providing the appropriate audio environment based on the current operational context.
Solution Approach 2:
The audio processing system segments communication audio and ambient sound into separate signal paths with independent control. This segmentation allows the control circuit to selectively emphasize communication audio over ambient sound during communication mode, thereby maintaining communication quality while still preserving the capability to provide ambient awareness when needed.
3Adaptability or versatility
If the headset requires manual mode switching between ambient and communication modes, then the user can select the appropriate mode, but the user experience is reduced due to additional manual operations
Solution Approach 1:
The control circuit automatically detects the operational context and switches between ambient mode and communication mode without requiring manual user intervention. The system self-adjusts the audio routing based on detected conditions (such as presence of communication signals or user behavior patterns), thereby maintaining adaptability while significantly improving ease of operation and overall user experience.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables users to remain aware of their surroundings while on calls without manual mode switching, providing a seamless transition between ambient and communication modes, enhancing usability and user experience.
Implementation Method 1
an ambient microphone (6) positioned to capture surroundings without picking up the user's voice
Implementation Method 2
a control circuit that automatically or manually toggles between ambient sound detection and voice communication
Implementation Method 3
The speaker delivers a speaker signal comprising the ambient sound signal in the ambient mode and comprising the input signal from the two-way communication device in the communication mode
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A communication headset system (1) for connecting to a two-way communication device (10). The communication headset system (1) comprising an earphone (15) with a speaker (2) for receiving a speaker signal (3) and converting it into speaker sound, a voice microphone (4) for receiving a user's voice and converting it into a voice signal (5). The communication headset system (1) further comprises an ambient microphone (6), arranged at a distance from the voice microphone (4), for receiving ambient sound and converting it into an ambient sound signal (7), and a control circuit (8) for receiving the ambient sound signal (7) and an input signal (12) from the telecommunication device (10), and for transmitting the speaker signal (3) to the speaker (2). The control circuit (8) comprises a switching circuit (9) for switching the headset system between an ambient mode in which the speaker signal (3) comprises the ambient sound signal (7) and not the input signal (12) and a communication mode in which the speaker signal (3) comprises the input signal (12) and not the ambient sound signal (7).