Speaker Sound Guide with Directional Slits for Multi-Channel Output
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Solution Overview
Problem
Conventional speaker systems face challenges in implementing multiple channels and achieving a wide frequency band while maintaining directional sound radiation, particularly in space-limited environments, where rearranging multiple speakers to change the sweet spot is disadvantageous.
Innovation Solution
A speaker apparatus with a sound guide and a pair of speakers, where the sound guide includes guide portions with openings and slits that vary in distance based on radiation direction, allowing for directional sound emission and integration of a center speaker to enhance sound output and reduce interference, enabling multiple channels and a wide frequency band.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple speakers are used to implement multiple channels, then the frequency band and sound quality are improved, but the device complexity and space requirements increase
Solution Approach 1:
The patent divides the sound guide into multiple guide portions (first guide portion, second guide portion, etc.), each responsible for directing sound from specific speakers to designated outlets. This segmentation allows the system to manage multiple channels through organized spatial separation rather than requiring separate independent speaker units for each channel.
Solution Approach 2:
The sound guide structure serves multiple functions simultaneously: it guides sound from different speakers, directs sound to different outlets, and creates multiple radiation directions (front, rear, left, right). This multi-functionality reduces the need for separate dedicated components for each channel, thereby reducing overall device complexity.
2Adaptability or versatility
If multiple speakers are arranged to change the sweet spot, then the sound optimization is improved, but the ease of operation deteriorates due to rearrangement requirements
Solution Approach 1:
The patent employs movable guide portions that can be adjusted along the sound guide structure. These guide portions can be repositioned to change the radiation direction and sweet spot without requiring physical rearrangement of the speakers themselves. This dynamic adjustment capability maintains ease of operation while achieving different sound optimization configurations.
3Adaptability or versatility
If a wide frequency band is achieved through multiple speakers, then the sound quality is improved, but the directional sound radiation control becomes more difficult
Solution Approach 1:
The patent assigns different frequency ranges to different guide portions and outlets. For example, certain guide portions are optimized for high-frequency sound radiation while others handle low-frequency sound. This local quality differentiation allows the system to maintain directional control for each frequency band while achieving a wide overall frequency response through coordinated operation of all guide portions.
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
The solution allows for optimized sound distribution with multiple channels and a wide frequency band, improving the spatial sound field and reducing interference, thus enhancing the listening experience by varying the directional angle according to frequency.
Implementation Method 1
a first guide portion configured to guide a first sound emitted by a first speaker from among the pair of speakers in a first direction
Data Source
AI summary
A speaker apparatus includes a sound guide and a pair of speakers mounted to the sound guide. The sound guide includes a first guide portion configured to guide a sound generated from any one of the pair of speakers in a first direction; and a second guide portion configured to guide a sound generated from the other speaker in a second direction that is plane-symmetric with respect to the first direction. Each of the first and second guide portions includes an opening forming portion formed in an end portion of the corresponding portion and including an opening configured to output a sound generated by the pair of speakers, and a slit forming portion including a slit configured to output a sound, together with the opening, wherein the slit is extended from one side of the opening.