Screen Sound Component Failure Detection With Speaker Switching
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Solution Overview
Problem
Electronic devices with screen sound production components, such as piezoelectric ceramic capacitive components, can fail, leading to silence or noise during voice communication, affecting user experience and reliability.
Innovation Solution
An audio playback method that detects the failure of screen sound production components by playing detection audio and switching to a speaker when failure is detected, using battery level to determine the type of detection audio and minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If screen sound production component is used to reduce hole in front panel, then screen-to-body ratio is improved, but reliability deteriorates due to component failure
Solution Approach 1:
The patent performs preliminary detection of the screen sound production component's working status before actual audio playback. By detecting the component status in advance and switching to the speaker beforehand, the system prevents audio playback failures caused by component malfunction, thus resolving the reliability issue while maintaining the small hole design
Solution Approach 2:
The patent prepares a backup speaker system that can immediately take over if the screen sound production component fails. This beforehand cushioning mechanism ensures continuous audio playback capability, compensating for the reduced reliability of the miniaturized screen component
2Reliability
If detection audio is played to detect component failure, then reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic detection of the screen sound production component's status rather than continuous detection. The system detects the component status at specific intervals or before audio playback sessions, which maintains reliable failure detection while significantly reducing overall power consumption compared to continuous monitoring
3Reliability
If switching to speaker is implemented when failure is detected, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent designs the speaker to serve multiple functions: it acts as the primary sound output device during normal operation and as a backup when the screen sound production component fails. This multi-functionality approach simplifies the overall system architecture by eliminating the need for separate backup components while maintaining high reliability
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
Prevents silence or noise issues by ensuring reliable audio playback through timely detection and switching, improving user experience and device reliability.
Implementation Method 1
a screen sound production component (such as a piezoelectric ceramic capacitive component) is generally disposed in the electronic device as a speaker
Data Source
Figure 1A
Figure 1B(a)~2
Figure 3
AI summary
An audio playback method, a failure detection method for a screen sound production component (104, 396), and an electronic device can resolve a problem of silence or noise that occurs after the screen sound production component (104, 396) fails, thereby improving reliability of the electronic device and user experience. The audio playback method includes: receiving an audio playback instruction; where the audio playback instruction is used to instruct the electronic device to play a first audio; playing, in response to receiving the audio playback instruction, a detection audio by using the screen sound production component (104, 396); obtaining a first parameter in a process of playing the detection audio; determining, based on the first parameter, whether the screen sound production component (104, 396) fails; where the first parameter is at least one of a real-time load current, a real-time load voltage, a real-time impedance, and a real-time admittance of the screen sound production component (104, 396); and when the screen sound production component (104, 396) fails, switching the sound production component to the speaker (370A), and playing the first audio by using the speaker (370A).