Connected Audio Playback Role Switching for Battery Runtime

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In multi-device audio systems with battery-powered speakers, the system often needs to pause and reconfigure when one or more speakers run out of power, leading to a poor user experience due to power consumption limitations.

Innovation Solution

An operation time optimization system that includes at least two audio devices, where each device measures its power condition and sends this information to a primary audio device. The primary device determines whether to replace itself with another secondary device based on power conditions, sending a reconfiguration message to perform a smooth transition or adjust power usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If battery-powered speakers are used in a multi-device system, then portability and flexibility are improved, but the system operation time is limited by power consumption

Engineering Contradiction:
ImproveportabilityVSAvoidoperation time
Core Design Contradiction:
Adaptability or versatilityVSDuration of action of moving object

Solution Approach 1:

The system performs preliminary actions by having each audio device measure and report its power condition to the primary device before the battery is completely depleted. The primary device then proactively determines and executes reconfiguration before system failure occurs, preventing interruptions rather than reacting to them.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the primary audio device role based on real-time power conditions. Any device in the multi-device system can become the new primary device if its power condition is better, creating a dynamic leadership structure that optimizes overall system operation time rather than having a static primary device.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the system reconfigures when a speaker runs out of power, then system reliability is maintained, but user listening experience deteriorates due to pauses and interruptions

Engineering Contradiction:
Improvesystem continuityVSAvoiduser experience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary reconfiguration actions before any device actually runs out of power. By monitoring power conditions continuously and executing role transfers proactively, the system maintains continuity without interruptions, preventing user-perceivable pauses rather than reacting to battery depletion events.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The audio devices perform self-service by automatically monitoring their own power conditions and participating in the reconfiguration process without user intervention. The primary device automatically determines the new primary device based on reported power conditions, and the system seamlessly transitions roles without requiring user awareness or action.

Inventive Principle:
Principle #25Self-service

3Productivity

If the primary audio device continuously monitors power conditions of all devices, then system optimization is improved, but energy consumption increases

Engineering Contradiction:
Improvesystem optimizationVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The monitoring responsibility is segmented and distributed across all audio devices in the system. Each device independently measures and reports its own power condition to the primary device, rather than having a single device monitor all others. This distributes the energy burden of monitoring across the entire system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each audio device performs self-service by autonomously measuring its own power condition and reporting it to the primary device. This eliminates the need for the primary device to actively query or monitor other devices, reducing the primary device's energy consumption while still achieving comprehensive power condition awareness.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250193602A1Operation time optimization system for connected audio devices and method thereof
Publication Date: 2025.06.12 HARMAN INT IND INC
  • US20250193602A1 patent drawing
  • US20250193602A1 patent drawing

AI summary

An audio device capable of optimizing operation time of a system and a system connecting a plurality of the audio devices to form the system to optimize the operation time are provided. On the other hand, a method for optimizing operation time of a system connected to audio devices is provided. The provided audio device, system, and method for operation time optimization can achieve increase playback time of the entire system by using power consumption condition information of each device as a reference.