Identical Earbuds Dynamic Master-Slave Role Assignment
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Solution Overview
Problem
Traditional wearable audio devices require distinct master and slave earbuds, increasing production costs and user complexity, with the master earbud exhausting battery faster due to increased energy consumption from communicating with both the control device and slave earbud.
Innovation Solution
Identically configured earbuds that can be interchangeably used in either ear, with dynamic assignment of master and slave roles based on initial power status or user input, allowing battery levels to be monitored and roles swapped when necessary to maintain balanced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If distinct master and slave earbuds are used, then control functionality is achieved, but production costs increase and device complexity increases
Solution Approach 1:
The patent merges the master and slave earbud configurations into a single identical design. Both earbuds contain the same communication components (first and second communication units) and control components, eliminating the need for separate master and slave hardware configurations. This reduces production costs and simplifies manufacturing while maintaining full control functionality through dynamic role assignment based on communication protocols.
Solution Approach 2:
Each earbud is designed with universal functionality to perform both master and slave roles. The earbuds contain dual communication units (first and second communication units) that enable each unit to communicate with both the external device and the other earbud, regardless of which role it currently assumes. This multi-functional design eliminates the need for different hardware configurations and simplifies production.
2Ease of operation
If master earbud communicates with both control device and slave earbud, then control functionality is achieved, but energy consumption increases
Solution Approach 1:
The patent implements dynamic role assignment where the master and slave roles are not fixed but can be swapped between earbuds based on battery levels. When the first earbud's battery drops below a threshold relative to the second earbud, they exchange roles. This dynamic adjustment ensures that the earbud with higher remaining battery assumes the master role with higher energy consumption, optimizing overall system operation time while maintaining full control functionality.
3Ease of operation
If master and slave earbuds have different form factors, then control surfaces are accessible, but user complexity increases
Solution Approach 1:
The patent employs homogeneous design where both earbuds have identical form factors, housing structures, and control surface configurations. This eliminates the need for users to distinguish between different earbud types (master vs. slave) and simplifies the user experience. The identical design allows users to insert either earbud in either ear without confusion, while control surface accessibility is maintained through symmetric placement of controls on both units.
Data Source
AI summary
Wireless, wearable audio devices and methods for assigning position and operational controls. Wireless audio devices or earbuds are described that are provided as a pair in which both audio devices are physically substantially identical. In use, the audio devices are assigned a right or left position associated with the respective ear of the user in which they are to be disposed. Control surfaces are similarly assigned to provide particular control functionalities on a particular side of the user. Master and slave designations are provided and may be swapped based on a battery status of the respective audio devices. Battery usage and the duration of available use of the pair of audio devices may thus be maximized.