Wireless Earphone Network Switching Beyond Ad Hoc Range Limits
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Solution Overview
Problem
Conventional wireless headphones are either cumbersome due to cords or large in size, lacking the portability and in-ear type design that users desire, especially when transitioning between ad hoc and infrastructure wireless networks for seamless audio streaming.
Innovation Solution
A wireless earphone system that includes a transceiver circuit for receiving streaming audio over ad hoc and infrastructure wireless networks, automatically transitioning between them without user intervention, and connecting to a host server for continued audio playback when out of range, allowing for in-ear, on-ear, or over-ear designs with adjustable shapes and features like dual speaker elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless headphones use ad hoc network for direct connection, then audio quality and connectivity are improved, but range and reliability deteriorate when devices are out of range
Solution Approach 1:
The wireless headphones are designed to support multiple network modes (ad hoc and infrastructure modes) within a single device, enabling universal connectivity across different network types. The device can automatically switch between direct peer-to-peer ad hoc connection and infrastructure mode through access points, ensuring continuous audio streaming regardless of network availability or device proximity.
2Ease of operation
If cordless headphones are designed with docking port for direct connection, then wireless audio streaming is improved, but device size and portability deteriorate
Solution Approach 1:
The invention extracts the docking port component from the headphone design, replacing physical direct connection with wireless communication protocols. By removing the docking port hardware, the headphones achieve compact in-ear form factor while maintaining wireless audio streaming capability through transceiver circuits that enable ad hoc and infrastructure mode connections.
3Adaptability or versatility
If conventional wireless headphones are made large to accommodate transceiver circuits, then wireless functionality is improved, but comfort and wearability deteriorate
Solution Approach 1:
The invention applies parameter changes by optimizing the power consumption and transmission range of the transceiver circuits to operate efficiently at low power levels suitable for in-ear devices. The wireless communication parameters (transmission power, data rate, protocol selection) are dynamically adjusted to maintain connectivity while minimizing the size of battery and circuit components, enabling comfortable in-ear form factor.
4Productivity
If headphones transition automatically between networks, then seamless audio playback is improved, but device complexity and control mechanisms deteriorate
Solution Approach 1:
The wireless headphones incorporate self-service capabilities by automatically detecting network availability, selecting appropriate connection modes (ad hoc or infrastructure), and switching between networks without user intervention. The device autonomously manages connection parameters, authentication, and audio stream routing, eliminating the need for complex manual control mechanisms while ensuring seamless audio playback.
Data Source
Figure 1A~1B
Figure 1C
Figure 1D~1E
AI summary
A wireless earphone that comprises a transceiver circuit for receiving streaming audio from a data source over a local ad hoc wireless network. When the data source and the earphone are out of range, they transition automatically to an infrastructure wireless network. If there is no common infrastructure wireless network for both the data source and the speakerphone set, the earphone connects to a host server via an available wireless network.