Adjustable Speaker Orientation for Stereo Sound in Portable Devices
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Solution Overview
Problem
Portable systems with internal stereophonic speakers face challenges in maintaining correct sound orientation when the device is switched between different display orientations, leading to reversed audio channels and diminished sound quality, and existing solutions are either bulky or complex.
Innovation Solution
A computer-implemented method that determines the display orientation of a portable system and adjusts the orientation of internal speakers along one side to maintain a correct stereo base, ensuring consistent stereophonic sound regardless of the display orientation, without requiring external speakers or increasing the device's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If four speakers are used to maintain correct stereo orientation in all display orientations, then stereophonic sound quality is improved, but device size and housing volume increase
Solution Approach 1:
The patent applies dynamics by making the speaker orientation adjustable rather than fixed. The speaker assembly can rotate to different orientations (landscape and portrait modes) to maintain correct stereo sound quality in all display orientations, eliminating the need for additional speakers while preserving sound quality across different device positions.
2Volume of moving object
If three loudspeakers are used with switching mechanisms, then device size is reduced, but system complexity increases
Solution Approach 1:
The patent extracts the orientation adaptation function from complex switching mechanisms and implements it through a simple rotational joint. Instead of using multiple speakers with electronic switching, the solution removes the switching complexity by allowing the speaker assembly itself to physically rotate to the correct orientation, maintaining simplicity while achieving the desired functionality.
3Device complexity
If speakers are fixed in position, then device complexity is reduced, but stereophonic sound quality deteriorates when display orientation changes
Solution Approach 1:
The patent applies dynamics by making the speaker orientation adjustable rather than fixed. The speaker assembly can rotate to different orientations (landscape and portrait modes) to maintain correct stereo sound quality in all display orientations, eliminating the need for additional speakers while preserving sound quality across different device positions.
Data Source
AI summary
Computer-implemented methods are provided. One method includes determining an orientation of a display of a portable system. The method also includes altering an orientation of two speakers arranged along one side of the system based on the orientation of the display. Another method includes determining an orientation of a display of a portable system and determining an orientation of two speakers of the system based on the orientation of the display. If a current orientation of the two speakers differs from the determined orientation of the two speakers, the method includes altering the current orientation of the speakers such that they have the determined orientation. A portable system is also provided that includes means for determining an orientation of a display of the system. The system also includes means for altering an orientation of two speakers arranged along one side of the system based on the orientation of the display.