Microphone Support Layout on Flexible PCB for Thinner Terminals
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Solution Overview
Problem
In existing mobile devices with flexible circuit boards, microphones arranged on the back require a supporting member to prevent falling, necessitating additional space that hinders device miniaturization.
Innovation Solution
A microphone is positioned between a support and a flexible circuit board with reinforcing members to provide support, eliminating the need for a separate supporting member and allowing for airflow, thus reducing the risk of the microphone falling off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a notification is displayed on a terminal device screen, then the user can be informed of incoming audio, but the privacy of the user is compromised when others are present
Solution Approach 1:
The patent introduces a notification policy manager as an intermediary between the notification system and the display system. This manager evaluates the current context (whether another person is present) and selectively mediates the notification delivery, allowing notifications to be suppressed or modified based on privacy conditions without requiring direct user intervention.
Solution Approach 2:
The system automatically detects the presence of other persons and self-adjusts the notification behavior without user input. The notification policy manager monitors contextual cues and autonomously decides whether to display notifications, thereby serving the privacy protection function without requiring explicit user commands.
2Loss of information
If audio is played through a terminal device speaker, then the user can receive audio information, but third parties can eavesdrop on the audio content
Solution Approach 1:
The notification policy manager acts as an intermediary that evaluates privacy conditions before allowing audio playback. When another person is detected, the system can modify the audio delivery behavior, such as suppressing the notification or adjusting playback parameters, to prevent eavesdropping while still delivering the audio information when appropriate.
Solution Approach 2:
The system dynamically changes the playback parameters (such as volume level or notification suppression) based on the detected presence of other persons. This parameter adjustment allows the audio delivery to adapt to privacy conditions, reducing eavesdropping risk when others are present while maintaining normal functionality when alone.
3Object-affected harmful factors
If the terminal device constantly monitors context to protect privacy, then privacy protection is improved, but device complexity and power consumption increase
Solution Approach 1:
The context monitoring system operates autonomously using existing sensors and system states without requiring additional complex hardware or continuous high-level processing. The notification policy manager leverages already-available contextual information (such as proximity sensor data or audio environment detection) to make privacy decisions, thereby minimizing additional system complexity.
Solution Approach 2:
The notification policy manager is designed to handle multiple types of notifications (audio, visual, haptic) and multiple contextual conditions using a single unified framework. This multi-functional approach avoids the need for separate monitoring systems for each notification type, thereby reducing overall device complexity while maintaining comprehensive privacy protection.
Data Source
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AI summary
Embodiments of this application provide an audio device and a terminal device. The audio device includes a microphone, a flexible circuit board, and a support. The microphone is located between the support and the flexible circuit board. A contact region between the flexible circuit board and the microphone includes a first hole for an airflow of audio to circulate. In the audio device, the microphone is located between the support and the flexible circuit board, and the support can provide a supporting function. Therefore, through the audio device, a risk that the microphone falls off the support can be reduced even if no supporting member is arranged, thereby resolving a problem in the prior art that a space needs to be reserved in a terminal device for a supporting member due to a need to arrange the supporting member. Further, because the audio device provided in this application does not require the supporting member to be arranged in the terminal device, lightening and thinning of the terminal device are promoted.