Portable Device Speaker Assembly with Virtual Surround and Segmented Drivers
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Solution Overview
Problem
Portable devices often have inferior sound quality, and existing external speaker solutions, such as the Zooka Bluetooth Speaker, lack multiple speaker drivers and a virtual surround system, failing to provide an enhanced audio and video experience.
Innovation Solution
A speaker assembly designed for portable devices, featuring a leg and receiver system that couples to the device, incorporating a housing with sound perforations and a septum to separate the receiver biasing mechanism from the acoustic chamber, allowing for improved sound emission and adjustable positioning, and potentially including virtual surround technology and objectionable sound muting capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If portable devices use built-in speaker assemblies, then the device remains portable and compact, but the sound quality is inferior
Solution Approach 1:
The speaker assembly is divided into separate functional components: a housing containing multiple speaker drivers (woofers, mid-range drivers, tweeters), a receiver mechanism for device attachment, and a leg for positioning. This segmentation allows each component to be optimized independently while maintaining overall portability.
Solution Approach 2:
The receiver mechanism is partially stored inside a cavity of the speaker housing, with a rod that can be extended or retracted. When not in use, the rod is stored within the housing cavity, making the assembly more compact. When needed, it extends to provide structural support and device attachment.
2Reliability
If external speaker assemblies are used to improve sound quality, then audio experience improves, but the device requires additional assembly and may lose components
Solution Approach 1:
The rod and receiver are merged into an integrated assembly where the rod is permanently attached to the receiver mechanism. This prevents the rod from being lost separately and ensures proper alignment during device attachment. The housing, receiver, and leg form a unified structure that simplifies handling.
Solution Approach 2:
The receiver mechanism includes a biasing mechanism that automatically returns the receiver to its proper position after device attachment or removal. This self-resetting feature eliminates the need for manual repositioning and ensures the device is securely held in place without requiring user intervention.
3Reliability
If multiple speaker drivers and virtual surround system are added, then sound quality improves, but the housing size and complexity increase
Solution Approach 1:
Different portions of the housing contain different types of speaker drivers optimized for specific frequency ranges: woofers for low frequencies, mid-range drivers for mid frequencies, and tweeters for high frequencies. Each driver is positioned to optimize its specific function, allowing compact packaging of multiple drivers with distinct local characteristics.
Solution Approach 2:
The speaker drivers are arranged in a three-dimensional configuration within the housing rather than a simple linear arrangement. Multiple drivers are stacked or positioned at different depths and angles, utilizing vertical and lateral space efficiently to accommodate virtual surround functionality without significantly increasing the housing footprint.
Data Source
AI summary
A speaker assembly comprises a portable device receiver and leg, allowing users to enjoy hands free viewing or listening experience. The sound system can be configured to provide an enhanced listening experience via at least one of a virtual surround system, a speaker driver, one or more speakers, adjustable control functions, and retained or increased acoustic power.