Multi-directional Flat Speaker with Rotating Matrix
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Solution Overview
Problem
Conventional speaker technologies, such as moving coil and electrostatic speakers, face limitations in flexibility and directional sound delivery, making them unsuitable for compact applications like 3C products and home entertainment systems, and require additional power elements for enhanced sound-pressure output, leading to increased size and cost.
Innovation Solution
A multi-directional flat speaker device featuring a plurality of flat speakers with directional effects, a serial connection mechanism, and a control mechanism that allows for independent or synchronized rotation of the speakers to create a composite sound field, utilizing electrostatic force to drive the vibrating film and generate sound, with an audio input interface for processing and directing audio signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If moving coil speakers are used, then sound output is achieved, but the structure cannot be compressed and is not suitable for compact applications
Solution Approach 1:
The speaker is divided into multiple flat speaker units arranged in a matrix configuration, where each unit can be independently controlled to rotate and emit sound in different directions. This segmentation allows the overall system to achieve compact form factor while maintaining audio output capability.
Solution Approach 2:
Each flat speaker unit is equipped with a rotation mechanism that allows dynamic adjustment of its orientation. This dynamic capability enables the speakers to redirect sound beams toward specific locations, providing adaptability for different application scenarios while maintaining a compact flat structure.
2Ease of operation
If electrostatic speakers are used, then directional sound delivery is achieved, but additional power elements are required which increase volume and cost
Solution Approach 1:
Multiple flat speaker units are merged into a single integrated matrix structure that shares common control and power systems. By combining multiple directional speakers into one unified device with centralized control, the patent reduces the need for separate power elements for each speaker while maintaining directional sound delivery capability.
Solution Approach 2:
The control mechanism is designed to universally control all flat speaker units in the matrix, enabling a single control system to manage multiple speakers for both directional sound delivery and rotation functions, thereby reducing overall system complexity and power element requirements.
3Power
If fixed electrode structures are used in electrostatic speakers, then sound generation is achieved, but the structure cannot achieve flexible characteristics
Solution Approach 1:
The patent replaces fixed electrode structures with flat speaker units that can dynamically rotate to different angles. Each speaker unit maintains its sound generation capability while gaining rotational freedom, allowing the system to adapt to different spatial requirements and achieve flexible sound field control.
4Ease of operation
If multiple speakers are used for directional sound delivery, then sound field control is improved, but device complexity increases
Solution Approach 1:
The control mechanism is designed as a universal system that can control all flat speaker units in the matrix through a unified interface. This multi-functional control system manages rotation and sound output for multiple speakers simultaneously, improving sound field control while avoiding the complexity increase that would result from multiple independent control systems.
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 multi-directional flat speaker device achieves flexible and directional sound delivery, suitable for various applications, by using a control mechanism to rotate flat speakers connected in series, enhancing sound field control and reducing the need for additional power elements, resulting in a more compact and cost-effective solution.
Implementation Method 1
utilizing electrostatic force to drive the vibrating film and generate sound
Data Source
AI summary
A multi-directional flat speaker device is disclosed. By the directional characteristics of a plurality of flat speakers of the flat speaker device, accompanying with mechanism to actuate each of the plurality of flat speakers independently rotating to its desired direction, a composite sound field is generated as desired accordingly. The design makes the applications of the flat speaker device more suitable to meet the requirement of future utilizations. The mechanism to actuate the plurality of flat speakers can be achieved by controlling one or more of the flat speakers to rotate in a unique manner. The mechanism can control a facing angle of any one of the plurality of flat speakers independently. The mechanism can be designed by mechanical or electrical controlling manner.