Multi-Chamber Speaker Enclosure for Compact Modular Integration

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Solution Overview

Problem

Existing set-top boxes with integrated speakers are bulky, costly, and have disappointing sound reproduction performance, posing challenges in integration with digital television decoders.

Innovation Solution

A generic acoustic enclosure with multiple sealed acoustic chambers and integrated loudspeakers, connected via Pogo pins to an electronic module, optimizing space and performance while allowing modular integration with various electronic modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If set-top boxes integrate speakers, then functionality is improved, but volume increases

Engineering Contradiction:
Improveintegration capabilityVSAvoidbox volume
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent integrates the speaker system within the set-top box by nesting the acoustic enclosure inside the electronic housing. The speaker box is positioned within the larger set-top box structure, allowing the speaker functionality to be contained within the existing electronic device volume rather than requiring separate external speakers.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent utilizes vertical space within the set-top box by positioning the acoustic enclosure in the vertical dimension. The speaker box is arranged vertically within the housing, optimizing the use of available three-dimensional space and reducing the horizontal footprint of the integrated system.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If set-top boxes integrate speakers, then functionality is improved, but manufacturing cost increases

Engineering Contradiction:
Improveintegration capabilityVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent divides the set-top box into distinct modular components: an electronic module housing the decoder and a separate acoustic enclosure housing the speakers. This segmentation allows each module to be manufactured independently using optimized processes, then assembled together, reducing overall manufacturing complexity and cost.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The acoustic enclosure is designed as a universal module that can be integrated with different electronic modules. The standardized interface and mounting mechanism allow the same speaker box to work with various decoder units, enabling economies of scale in manufacturing both the acoustic and electronic components separately.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If set-top boxes integrate speakers, then functionality is improved, but sound reproduction performance deteriorates

Engineering Contradiction:
Improveintegration capabilityVSAvoidacoustic performance
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent separates the acoustic enclosure from the electronic module, creating dedicated spaces for audio components. This segmentation allows the acoustic chamber to be optimized specifically for sound reproduction with proper isolation from electronic interference, while maintaining integration at the system level through standardized mounting interfaces.

Inventive Principle:
Principle #1Segmentation

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 reduces volume and cost, enhances acoustic performance, and allows seamless integration with different types of equipment, achieving sound quality comparable to more complex systems.

Implementation Method 1

a plurality of loudspeakers each comprising a membrane, each loudspeaker being integrated into one of the acoustic chambers

Methodology Applied
Scientific EffectElectroacoustic transduction:

Implementation Method 2

the box being made by plastic injection

Methodology Applied
Scientific EffectPlastic injection:

Data Source

PatentEP4250766B1Generic speaker system
Publication Date: 2025.07.23 SAGEMCOM BROADBAND SAS
  • EP4250766B1 patent drawingFigure 1~2
  • EP4250766B1 patent drawingFigure 3
  • EP4250766B1 patent drawingFigure 4

AI summary

Generic acoustic enclosure comprising: - a box (23) including internal partitions (40) which define a plurality of sealed acoustic chambers (41, 42), distinct and separated from each other by said internal partitions, each acoustic chamber including an opening (43, 44, 45) opening to the outside of the box in a different direction; - a plurality of loudspeakers (47, 49) each including a diaphragm, each loudspeaker being integrated into one of the acoustic chambers; - at least one first connector (60) mounted in a sealed manner on the box, the first connector including contacts electrically connected to the loudspeakers, the first connector being thus arranged to electrically connect the loudspeakers to the electronic board of the additional electronic module, via a second connector mounted on the additional electronic module and complementary to the first connector.