Earphone Volume Control via Rotating Plate and Transducer
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Solution Overview
Problem
Existing head-mounted displays for virtual reality lack an intuitive and easily operable volume adjustment mechanism for earphones, which can disrupt the immersive experience when users need to adjust volume settings.
Innovation Solution
An earphone design incorporating a rotating plate, displacement transducer, and follower mechanism that allows users to adjust volume output by rotating the plate, thereby varying the resistance of the displacement transducer, providing a straightforward and convenient volume control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional volume adjustment mechanism is used in the earphone, then the volume control function is achieved, but the operation becomes complex and interrupts the VR experience
Solution Approach 1:
The rotating plate is integrated with the earphone housing structure, merging the volume control function into the existing device framework. The rotating plate shares structural elements with the earphone body, eliminating the need for separate complex adjustment mechanisms while maintaining volume control functionality.
Solution Approach 2:
The mechanical volume adjustment mechanism is replaced with an electronic sensing system. The rotating plate's rotational movement is detected by a sensing mechanism that converts mechanical rotation into electrical signals for volume control, simplifying the mechanical structure while achieving the same functional outcome.
2Ease of operation
If the volume adjustment mechanism is made more intuitive and easily operable, then ease of operation is improved, but the device structure becomes more complex
Solution Approach 1:
The rotating plate is designed to rotate freely around a vertical axis, providing dynamic and flexible volume adjustment. This rotational freedom allows intuitive operation in multiple directions while the underlying sensing mechanism remains relatively simple, converting the dynamic rotational input into volume control signals.
Solution Approach 2:
The rotating plate serves multiple functions: it acts as both a structural component of the earphone housing and a control interface for volume adjustment. This multi-functionality reduces the need for separate dedicated control mechanisms, thereby improving ease of operation without proportionally increasing device complexity.
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 enables intuitive and easy operation of volume adjustment, enhancing user experience by maintaining immersion in virtual reality environments without interrupting the VR experience.
Implementation Method 1
a displacement transducer, and a follower, wherein the cover is disposed on the base, the rotating plate is rotatably disposed between the base and the cover, the speaker is disposed between the base and the cover, the displacement transducer is fixed to the base and located between the base and the cover, the rotating plate is coupled to the follower, and the follower is coupled to the displacement transducer
Data Source
AI summary
An earphone including a base, a cover, a rotating plate, a speaker, a displacement transducer and a follower is provided. The cover is disposed on the base. The rotating plate is rotatably disposed between the base and the cover. The speaker is disposed between the base and the cover. The displacement transducer is fixed to the base and located between the base and the cover. The rotating plate is coupled to the follower, and the follower is coupled to displacement transducer. A head-mounted display is further provided.