Speaker Enclosure Volume Tuning via Antenna Housing Merging
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Solution Overview
Problem
Current wireless handheld mobile communication devices face challenges in optimizing the acoustic and performance characteristics of their speakers due to size and space constraints within the device's housing, where existing solutions do not effectively adjust the response signal of transducers to enhance audio output.
Innovation Solution
A system comprising a substrate with a transducer mounted on one side and an enclosure on the other, which defines a volume to adjust the response signal, including a gasket and RF shield to further tune the frequency response, allowing for adjustable air volumes and RF shielding without the need for separate enclosures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a separate enclosure is added to optimize speaker acoustic properties, then audio output quality is improved, but device size and complexity increase
Solution Approach 1:
The patent combines the speaker enclosure function with the existing antenna housing structure. The antenna housing, which already occupies space in the device, is configured to serve dual purposes: shielding RF signals and providing the acoustic enclosure volume for the speaker. This merging eliminates the need for a separate speaker enclosure, reducing device complexity while maintaining acoustic performance.
Solution Approach 2:
The antenna housing is designed to perform multiple functions simultaneously: it serves as both an RF signal shield and an acoustic enclosure for the speaker. By making the housing universal, the patent avoids adding extra components, thus reducing overall device complexity while achieving both RF shielding and acoustic optimization.
2Object-generated harmful factors
If the enclosure volume is increased to improve acoustic response, then audio output quality is improved, but available space within the device is reduced
Solution Approach 1:
The patent merges the antenna housing volume with the speaker enclosure volume, utilizing the same physical space for both RF shielding and acoustic purposes. This eliminates the need for additional enclosure volume that would otherwise be required, preserving available space within the device while achieving improved acoustic response.
3Object-affected harmful factors
If RF shielding is added to protect internal components, then electromagnetic interference is reduced, but acoustic tuning capabilities are limited
Solution Approach 1:
The patent combines RF shielding and acoustic enclosure functions into a single integrated housing structure. This allows the housing to provide both electromagnetic protection and acoustic tuning capabilities simultaneously, maintaining adaptability for acoustic optimization while ensuring RF interference protection.
Solution Approach 2:
The housing structure is designed with specific local characteristics that enable both RF shielding and acoustic tuning. By optimizing the local geometry and material properties of the housing, the patent achieves dual functionality without compromising either RF protection or acoustic performance.
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
This configuration enhances the acoustic properties of the transducer by reducing back-wave noise and tuning resonant frequencies, improving the overall audio output while efficiently utilizing space within the device.
Implementation Method 1
an enclosure attached to the substrate on the second side of the substrate within the housing to cover the opening and to define a first volume by an interior space of the enclosure and the second side of the substrate, wherein the first volume adjusts the response signal of the transducer
Implementation Method 2
reducing back-wave noise
Data Source
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AI summary
The disclosure relates to a system for adjusting a response signal of a transducer (16B) located in a housing (12A, 12B) of an electronic device. The system comprises: a substrate (76) having a first side and a second side and a first aperture (704) located within the substrate and providing an opening from the first side to the second side of the substrate, wherein a transducer is mounted on the first side of the substrate; and an enclosure (82) located on the second side of the substrate (76) to cover the opening and to define a first volume by an interior space of the enclosure (82) and the second side of the substrate (76). In the system, the first volume adjusts the response signal of the transducer (16B) through the opening and the enclosure. The system may also include a second aperture (84) on a top surface of the enclosure (82) which connects the first volume to a second volume.