Audio Output Device Automatic Sound Field Switching
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Solution Overview
Problem
Flat-screen TVs installed in wall-mounting mode experience a lack of high frequency audio quality due to the absence of reflective surfaces, requiring manual adjustment of sound field modes, which is inconvenient.
Innovation Solution
An audio output device with a housing, speaker, switching unit, and control unit that automatically switches sound field modes based on a fixing component's position, using a switching unit and GPIO port to amplify high frequency signals when mounted on a wall, and revert to standard mode when not.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flat-screen TV is installed in wall-mounting mode, then the installation flexibility is improved, but the high frequency audio quality deteriorates due to lack of reflective surface
Solution Approach 1:
The patent implements dynamic switching between different sound field modes (standing mode and wall-mounting mode) based on the detected installation state. The system automatically adjusts audio parameters including high frequency amplification when mounted on wall, transforming the static audio output into a dynamic adaptive system that responds to installation conditions.
Solution Approach 2:
The system employs automatic detection mechanisms (such as sensors or switches) that sense the installation state and trigger corresponding sound field mode changes without user intervention. The device self-adjusts the audio parameters including high frequency amplification based on detected installation conditions, eliminating the need for manual configuration.
2Ease of manufacture
If the sound field mode is manually switched by user, then the audio quality can be adjusted, but the operation complexity increases
Solution Approach 1:
The system automatically detects installation state through sensors or switches and autonomously switches between sound field modes without requiring user input. The detection mechanism triggers the control unit to select appropriate audio parameters including high frequency amplification settings, making the system self-configuring.
Solution Approach 2:
The system incorporates feedback mechanisms where sensors detect installation conditions (wall-mounted vs. standing) and feed this information back to the control unit. Based on this feedback, the control unit automatically adjusts sound field parameters including high frequency amplification to match the detected installation state.
3Extent of automation
If the fixing component is added to trigger switching unit, then the automatic sound field switching is achieved, but the device complexity increases
Solution Approach 1:
The patent combines the fixing component (mounting bracket or screw) with the switching trigger function. The same physical component that secures the device to the wall also acts as the trigger mechanism for sound field mode switching. This integration eliminates separate components and reduces overall system complexity.
Solution Approach 2:
The fixing component serves multiple functions: mechanically securing the device to the wall and simultaneously triggering the sound field mode switch. This multi-functional design reduces the number of separate components needed while achieving automatic adaptation to installation conditions.
Data Source
AI summary
An audio output device includes a housing, a speaker, a switching unit, a fixing component and a control unit. An opening is formed on the housing. The speaker is for outputting sound. The switching unit is installed inside the housing. The fixing component is fixed in the opening of the housing for triggering the switching unit so that the switching unit outputs a switching signal. The control unit is electrically connected to the switching unit and the speaker, and the control unit controls the speaker to output sound in a corresponding sound field as the control unit receives the switching signal.