Pen-Type Handset with Cartilage Conduction and Vibration Isolation
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Solution Overview
Problem
Existing handsets lack effective solutions for improved hearing devices and vibration units that can operate effectively in noisy environments and provide efficient audio transmission through cartilage conduction while minimizing external noise interference.
Innovation Solution
A pen-type handset design incorporating a cartilage-conduction vibration source, a sound source unit, a microphone, and a wireless communication unit, with a vibration isolating mechanism to manage vibration conduction and an incoming-call display unit that operates based on the clip portion's open or closed state, allowing for efficient audio transmission and noise cancellation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If cartilage-conduction vibration is used for audio transmission, then audio clarity in noisy environments is improved, but vibration interference from the clip portion to the main body deteriorates performance
Solution Approach 1:
The handset is divided into functionally independent segments: the clip portion containing the cartilage-conduction vibration source is separated from the main body through vibration isolating means, allowing each segment to perform its specific function without interfering with the other
Solution Approach 2:
Vibration isolating means (such as vibration isolating material or vibration conduction unit) are introduced as intermediary elements between the cartilage-conduction vibration source and the main body, selectively blocking harmful vibration transmission while preserving the desired audio transmission function
2Ease of operation
If the clip portion is designed to be always open for accessibility, then ease of operation is improved, but incoming-call functionality deteriorates
Solution Approach 1:
The clip portion is designed with dynamic opening/closing capability, allowing it to transition between open and closed states based on operational requirements, enabling both easy accessibility and proper incoming-call detection
Solution Approach 2:
The system incorporates detection means that monitor the open/closed state of the clip portion and provide feedback to the control unit, which then appropriately enables or disables incoming-call display and operation validation based on the detected state
3Strength
If vibration conduction to the main body is enabled for structural support, then strength is improved, but audio quality deteriorates due to vibration noise
Solution Approach 1:
Vibration isolating means serve as intermediary elements that selectively transmit or block vibration based on the operational state, allowing structural support when needed while preventing vibration noise from degrading audio quality during cartilage-conduction mode
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 pen-type handset enhances audio clarity and noise reduction by using cartilage-conduction vibration and wireless communication, ensuring effective audio transmission and user interaction in noisy conditions.
Implementation Method 1
a cartilage-conduction vibration source which conducts vibration to the clip portion
Implementation Method 2
between the cartilage-conduction vibration source and the main body, a vibration isolating material is interposed as the vibration isolating means
Implementation Method 3
a piezoelectric element is used as a vibration source of bone conduction
Data Source
AI summary
A pen-type handset has a clip portion as a cartilage conduction unit. The clip portion, of an elastic body, is supported on a main body with no direct contact of a cartilage-conduction vibration source in the clip portion with the main body. The clip portion supporting the cartilage-conduction vibration source is supported on the main body via a vibration isolating material. With the clip portion closed, vibration of the cartilage-conduction vibration source is not conducted to the main body; with the clip portion open, vibration of the cartilage-conduction vibration source is conducted to the main body. With the clip portion open, operation of an incoming-call display unit is prohibited. With the clip portion open, operation on an operation unit is invalidated. An incoming call is responded to by closing the open clip portion.