Wireless Stereo Headset Group Audio via Staggered Broadcasts
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Solution Overview
Problem
Existing wireless headsets struggle with high latency and interference when used in close proximity, especially in noisy environments, making group communication challenging, particularly for hearing-impaired individuals and in professional settings, and existing group communication apps introduce complexity and latency issues.
Innovation Solution
A method for direct wireless communication between multiple sound recording and reproduction devices (SRRDs) using a transceiver and controller, employing a standardized protocol like Bluetooth Low Energy, with configured time periods and sequential broadcasting to minimize latency and interference, allowing synchronized audio data exchange among group members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless headsets connect via mobile phone and internet for group communication, then group communication capability is enabled, but latency increases and complexity increases
Solution Approach 1:
The patent extracts the group communication functionality from the mobile phone and internet infrastructure, implementing it directly within the wireless headsets themselves. Each headset contains a transceiver that enables direct peer-to-peer communication, removing the need for external servers and reducing latency while maintaining group communication capability.
Solution Approach 2:
The patent introduces a dedicated transceiver component as an intermediary device within each headset, enabling direct wireless communication between headsets without requiring mobile phone or internet infrastructure. This intermediary mechanism reduces complexity and latency by establishing direct communication paths.
2Adaptability or versatility
If wireless headsets connect via mobile phone and internet for group communication, then group communication capability is enabled, but device complexity increases
Solution Approach 1:
The patent extracts the group communication functionality from complex external systems (mobile phones, internet servers) and implements it within simple transceiver components in each headset. This extraction reduces overall system complexity while maintaining the desired adaptability.
Solution Approach 2:
The headsets are equipped with self-contained transceivers that enable them to communicate directly with each other without requiring external infrastructure. This self-service capability reduces dependency on complex external systems and simplifies the overall architecture.
3Ease of operation
If audio is transmitted through loudspeaker in wireless headset, then audio communication is enabled, but latency increases and echo occurs
Solution Approach 1:
The patent replaces the mechanical acoustic transmission path (air conduction through loudspeaker) with an electronic wireless transmission path (radio frequency communication between transceivers). This substitution significantly reduces latency and eliminates echo by directly transmitting electrical audio signals between devices without mechanical conversion.
Data Source
AI summary
A communication protocol provides group communications between at least two wireless headsets. Multiple broadcast links, mutually time staggered, are established between the headsets for sequentially sending broadcast messages between group members. Group members can retransmit and forward one or more received broadcast messages to improve robustness and range. In the receiving headset, audio received in broadcast messages from multiple members is combined into a single audio signal provided to the loudspeaker of the receiving headset.