Bluetooth Stereo Pair Switching for Synchronized Line-In Playback
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Solution Overview
Problem
Dual-mode playback devices struggle with maintaining stereo pair configurations when switching between WiFi and Bluetooth audio sources, leading to suboptimal audio playback and operational complexity.
Innovation Solution
Playback devices are configured to maintain stereo pair configurations by switching between operating modes, allowing seamless transition between WiFi and Bluetooth audio sources while preserving synchronized audio playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If playback devices switch between WiFi and Bluetooth audio sources, then audio source flexibility is improved, but stereo pair configuration is lost
Solution Approach 1:
The system dynamically adjusts its operating mode between WiFi and Bluetooth based on the audio source type, while maintaining the stereo pair configuration through flexible mode switching. The playback devices can transition between modes without losing their synchronized stereo relationship, resolving the contradiction between source flexibility and configuration stability.
Solution Approach 2:
The playback devices are designed to handle multiple audio source types (WiFi and Bluetooth) through a unified stereo pair configuration system. Both audio sources are treated equally within the same stereo pair framework, allowing the system to maintain consistent stereo functionality across different input sources without requiring separate configuration modes.
2Adaptability or versatility
If dual-mode playback devices support both WiFi and Bluetooth, then audio source options are improved, but device complexity increases
Solution Approach 1:
The patent merges WiFi and Bluetooth audio reception into a unified stereo pair processing framework. Both audio sources are handled through the same configuration and playback mechanisms, eliminating the need for separate operational modes and reducing the complexity that would otherwise arise from managing multiple independent systems.
Solution Approach 2:
A universal stereo pair configuration is implemented that works with both WiFi and Bluetooth audio sources. This multi-functional approach allows the same device hardware and software framework to handle different audio inputs without requiring additional specialized components or complex switching logic, thereby reducing overall device complexity.
Data Source
AI summary
Disclosed embodiments include a first playback device operating in a first mode where the first playback device plays first audio received from a second playback device via a WLAN in a groupwise fashion. After connecting to a Bluetooth audio source, the first playback device switches from operating in the first mode to operating in a second mode where the first playback device (i) ceases playing the first audio, (ii) generates second playback timing for second audio received from the Bluetooth audio source, (iii) transmits the second audio content and the second playback timing to the second playback device via Bluetooth, and (iv) plays the second audio in a groupwise fashion with the second playback device based on the second playback timing.