Wireless Audio Switching Control for Multi-Host Devices

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Solution Overview

Problem

Existing wireless speaker and microphone devices lack user control over switching between active audio streams from multiple linked host information handling systems, often resulting in interruptions when a second active audio stream, such as an incoming call, takes precedence over the first.

Innovation Solution

An audio device switching control system is implemented in the wireless speaker and microphone device, allowing users to control switching between active audio streams from multiple host systems. This system provides an indication, such as a tone or haptic feedback, of an available second active audio stream without interrupting the first, enabling users to choose when to switch.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a wireless speaker and microphone device automatically switches to a second active audio stream when it becomes available, then the device can handle multiple audio sources, but the user loses control over when switching occurs and the first audio stream is interrupted

Engineering Contradiction:

Improveability to handle multiple audio sourcesVSAvoiduser control over switching

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The wireless audio device monitors its own connection status and automatically detects when a second host becomes available, generating notifications without user intervention. The device manages the switching process itself while still allowing user control through notification responses.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system implements feedback by notifying the user when a second audio stream becomes available and waiting for user response. This feedback loop allows the user to control the switching decision while the system remains adaptive to new audio sources.

Inventive Principle:

Principle #23Feedback

2Reliability

If a second active audio stream takes precedence over the first, then incoming calls can be prioritized, but the first audio stream is interrupted causing poor user experience

Engineering Contradiction:

Improvepriority handling of incoming callsVSAvoidinterruption of first audio stream

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The system performs preliminary actions by notifying the user before switching occurs. This allows the user to prepare for the transition and makes the switching process less abrupt, reducing the harmful effect of interruptions while still maintaining call priority capability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system applies preliminary anti-action by preventing automatic interruption of the first audio stream. Instead of allowing the second stream to take precedence automatically, the system blocks this automatic behavior and requires user confirmation, thereby counteracting the potential harm of unwanted interruptions.

Inventive Principle:

Principle #9Preliminary anti-action

3Productivity

If the device provides automatic switching between audio streams, then seamless transitions can occur, but users cannot control when switching happens

Engineering Contradiction:

Improveefficiency of audio stream switchingVSAvoiduser control over switching timing

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The system implements dynamic switching behavior that adapts to user preferences. The switching mechanism is flexible, allowing automatic mode for efficiency when desired, and user-controlled mode when precision timing is needed. This dynamic approach resolves the contradiction between efficiency and control.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The switching system serves multiple functions: it can operate automatically for efficient seamless transitions, or it can wait for user input for controlled switching. This multi-functionality allows the same system to provide both productivity and ease of operation depending on the situation and user preference.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12207036B2System and method for control of audio switching at a linked input/output device between two active hosts

Publication Date: 2025.01.21 DELL PROD LP

AI summary

A wireless speaker and microphone device paired with a plurality of host information handling systems comprising a microphone and a speaker, a wireless speaker and microphone device radio system establishing a first wireless link with a first host information handling system and establishing a second wireless link with a second host information handling system where the wireless speaker and microphone device receives a first active audio data stream on the first wireless link. The microcontroller integrated circuit to receives a signal on the second wireless link indicating an incoming available second audio data stream and provides an indication of the incoming available second audio data stream to a user. An input/output device receives an acceptance from the user and the microcontroller integrated circuit switches the speaker and the microphone to the second wireless link and sends a signal to activate the second audio data stream on the second wireless link.