Wireless Earphone Master Switching via Predicted Silent Windows

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Solution Overview

Problem

The switching process between master and slave earphones in wireless earphone systems often causes short-term calling interruptions due to changes in position or communication quality, affecting the user's calling experience.

Innovation Solution

A method is implemented where the mobile terminal detects silent time windows during voice calls and switches the master earphone within these windows, disconnecting the communication connection with the first earphone and establishing it with the second earphone, to avoid data loss and minimize the impact on the call.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the master earphone is switched due to position changes or communication quality degradation, then the calling reliability is improved, but the calling continuity deteriorates due to short-term interruptions

Engineering Contradiction:
Improvecalling reliabilityVSAvoidcalling continuity
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The system performs preliminary actions by predicting silent time windows before actual switching occurs. The mobile terminal analyzes voice call data to identify upcoming silent periods, then proactively prepares for master earphone switching during these predicted windows, ensuring the switch happens before voice data transmission resumes.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the timing of master earphone switching based on real-time analysis of voice call data. Instead of fixed or random switching, the system adapts its switching schedule to the actual voice activity patterns, dynamically selecting silent time windows that are optimal for switching without disrupting ongoing calls.

Inventive Principle:
Principle #15Dynamics

2Speed

If the master earphone switching is performed immediately when conditions are met, then the switching speed is improved, but the voice data loss increases

Engineering Contradiction:
Improveswitching speedVSAvoidvoice data loss
Core Design Contradiction:
SpeedVSLoss of information

Solution Approach 1:

The system performs preliminary analysis of voice call data to predict future silent time windows before switching is needed. By identifying these windows in advance, the system can plan and execute switching operations during appropriate intervals, maintaining fast switching capability while avoiding voice data loss.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from voice call data analysis to determine optimal switching timing. By continuously monitoring the voice call stream and identifying silent periods, the system receives feedback about when switching can occur safely, adjusting its switching decisions based on this real-time information about voice activity patterns.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3823259B1Method for performing switching with respect to primary earpiece, mobile terminal, and computer readable storage medium
Publication Date: 2023.02.15 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • EP3823259B1 patent drawingFigure 1
  • EP3823259B1 patent drawingFigure 2
  • EP3823259B1 patent drawingFigure 3

AI summary

A method for switching a master earphone, a mobile terminal, and a computer-readable storage medium are provided in implementations of the present disclosure. The method includes the following. When a mobile terminal is in a calling status, whether a condition for switching a master earphone is met is detected. When the condition is met, at least one silent time window is predicted based on voice call data. Within a first silent time window, the communication connection between the mobile terminal and a first earphone is disconnected, and a communication connection between the mobile terminal and a second earphone is established, where the first silent time window is any one of the at least one silent time window. By means of the implementations of the present disclosure, an influence on a call due to switching of the master earphone can be reduced.