Wireless Earphone Audio Transmission for Bandwidth-Aware Mode Switching

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Solution Overview

Problem

Existing wireless high-definition earphones based on Bluetooth technology can only support lossy high-definition music due to limited bandwidth, and wireless earphones using single Wi-Fi technology face issues with high power consumption and short standby time.

Innovation Solution

An audio data transmission method for wireless earphones that dynamically switches between Bluetooth and Wi-Fi play modes based on the bandwidth requirements of the to-be-played audio data, ensuring high-definition lossless music transmission while optimizing power consumption by using lossy compression when necessary.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If Bluetooth technology is used for wireless audio transmission, then power consumption is reduced and connectivity is simplified, but transmission bandwidth is limited and cannot support high-definition lossless music

Engineering Contradiction:
Improvepower consumptionVSAvoidtransmission bandwidth
Core Design Contradiction:
Use of energy by moving objectVSQuantity of substance

Solution Approach 1:

The system dynamically switches between Bluetooth and Wi-Fi play modes based on real-time detection of audio data bandwidth requirements. When high-definition lossless music is detected, the system transitions to Wi-Fi mode to provide sufficient bandwidth; when standard audio is detected, it returns to Bluetooth mode for energy efficiency. This dynamic adaptation resolves the contradiction by allowing the system to access both high bandwidth and low power consumption modes as needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The wireless earphone is designed with multi-functionality, supporting both Bluetooth and Wi-Fi play modes simultaneously. This universal design enables the earphone to handle diverse audio transmission requirements through a single device, selecting the appropriate mode (Bluetooth for power efficiency, Wi-Fi for bandwidth) based on the specific audio content being played.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Quantity of substance

If Wi-Fi technology is used for wireless audio transmission, then transmission bandwidth is sufficient for high-definition lossless music, but power consumption increases and standby time decreases

Engineering Contradiction:
Improvetransmission bandwidthVSAvoidpower consumption
Core Design Contradiction:
Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The system dynamically switches between Bluetooth and Wi-Fi play modes based on real-time detection of audio data bandwidth requirements. When high-definition lossless music is detected, the system transitions to Wi-Fi mode to provide sufficient bandwidth; when standard audio is detected, it returns to Bluetooth mode for energy efficiency. This dynamic adaptation resolves the contradiction by allowing the system to access both high bandwidth and low power consumption modes as needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Instead of continuously using Wi-Fi mode to guarantee sufficient bandwidth, the system uses Wi-Fi only partially - specifically when and where needed for high-definition audio. For the majority of listening scenarios using standard audio, the system relies on Bluetooth mode, thereby minimizing overall power consumption while still providing high bandwidth capability when required.

Inventive Principle:
Principle #16Partial or excessive action

3Quantity of substance

If single Wi-Fi mode is adopted for wireless earphone, then high-definition lossless music transmission is achieved, but device complexity and power management requirements increase

Engineering Contradiction:
Improvetransmission bandwidthVSAvoidpower management complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The system dynamically switches between Bluetooth and Wi-Fi play modes based on real-time detection of audio data bandwidth requirements. When high-definition lossless music is detected, the system transitions to Wi-Fi mode to provide sufficient bandwidth; when standard audio is detected, it returns to Bluetooth mode for energy efficiency. This dynamic adaptation resolves the contradiction by allowing the system to access both high bandwidth and low power consumption modes as needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates a feedback mechanism that detects the bandwidth requirements of audio data before transmission. Based on this feedback information about the audio content, the system automatically selects the appropriate play mode (Bluetooth or Wi-Fi) to match the actual transmission needs, simplifying power management through intelligent automation rather than complex manual control.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12446084B2Audio data transmission method and apparatus for wireless earphone, and storage medium and terminal
Publication Date: 2025.10.14 SPREADTRUM COMMUNICATION (SHANGHAI) CO LTD
  • US12446084B2 patent drawing
  • US12446084B2 patent drawing
  • US12446084B2 patent drawing

AI summary

An audio data transmission method and apparatus for a wireless earphone, and a storage medium and a terminal are provided. A play mode adopted by the wireless earphone includes a first play mode and a second play mode, and the method includes: determining whether the first play mode currently adopted by the wireless earphone satisfies a transmission bandwidth required by to-be-played audio data at least based on parameter information of the to-be-played audio data; and based on the first play mode not satisfying the transmission bandwidth required by the to-be-played audio data, transmitting the to-be-played audio data through a connection channel corresponding to the second play mode.