Wireless Earphone Proximity Sensor Hand Trajectory Control
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Solution Overview
Problem
Conventional wireless earphones lack effective control over audio playback operations on mobile terminals, limiting user interaction and causing poor user experience due to the need for double-clicking, which can result in physical impact and limited control options.
Innovation Solution
The implementation of proximity sensors on the wireless earphone to collect hand proximity information, determine the operation trajectory, and transmit corresponding audio playback instructions to the mobile terminal, allowing for volume adjustment, audio switching, and playback control without the need for double-clicking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If double-clicking the earphone is used for control, then playback pause function can be realized, but volume adjustment and audio switching are not supported and physical impact on user's ear occurs
Solution Approach 1:
The patent replaces the mechanical double-click operation with an optical sensing system. Infrared emitting and receiving units detect hand approach without requiring physical contact or clicking, thereby eliminating mechanical impact on the user's ear while enabling diverse control operations including volume adjustment and audio switching through trajectory recognition
2Adaptability or versatility
If acceleration sensor is used for control, then playback pause can be realized through double-click detection, but volume adjustment and audio switching are not supported
Solution Approach 1:
The patent replaces the acceleration sensor-based mechanical detection with an optical sensing system using infrared emitting and receiving units. This system tracks hand trajectory through spatial coordinates and timing information, enabling recognition of multiple control operations (volume up/down, play/pause, next/previous audio) with higher reliability and without requiring forceful double-clicking
Solution Approach 2:
The patent transitions from one-dimensional acceleration sensing to two-dimensional trajectory detection by using multiple infrared receiving units arranged in space. The system calculates hand position coordinates (x, y) and movement trajectories, adding spatial dimensionality to control recognition and enabling more diverse and reliable control functions
3Adaptability or versatility
If multiple proximity sensors are arranged on outer surface, then diverse control operations can be achieved, but device structure becomes more complex
Solution Approach 1:
The patent uses a single infrared emitting unit that serves multiple functions by interacting with different receiving units. The same emitting unit enables various control operations (volume adjustment, playback control, audio switching) by detecting hand trajectory patterns across different spatial positions, reducing the need for multiple specialized sensors while maintaining diverse control capabilities
Solution Approach 2:
The patent reduces structural complexity by arranging receiving units in a two-dimensional spatial configuration rather than using multiple sensors distributed throughout the device. The infrared emitting unit projects signals outward, and the receiving units detect reflected signals from hand positions, creating a compact optical sensing array that achieves diverse control functions through spatial arrangement rather than numerical multiplication of sensors
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
This solution enhances user interaction by increasing control options over audio playback, improving user experience by eliminating physical impact and enabling efficient operation even in limited spaces, while maintaining efficient operation.
Implementation Method 1
collecting proximity information of a user's hand within a preset time period by using a plurality of proximity sensors of a wireless earphone
Data Source
AI summary
An audio playback control method of a mobile terminal comprises: collecting proximity information of a user's hand within a preset time period by using a plurality of proximity sensors of a wireless earphone; acquiring information about whether each proximity sensor is shielded at each moment within the preset time period according to the proximity information; determining the order in which different proximity sensors are shielded according to the information about each proximity sensor being shielded; acquiring an operation trajectory of the user's hand according to the order in which different proximity sensors are shielded; and acquiring a corresponding audio playback operation instruction according to the operation trajectory and a preset trajectory instruction library, to realize the control over the audio playback of the mobile terminal. A wireless earphones comprises: a plurality of proximity sensors, a memory and a processor, and each proximity sensor and the memory are all connected to the processor. The present disclosure increases the variety of control operations on the audio playback of the mobile terminal through the wireless earphone, and will not cause physical impact on the user's ear, thereby improving the user experience.