Automatic Bluetooth Role Judgement for Flexible Device Pairing

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Solution Overview

Problem

Existing electronic devices limited by pre-defined central or peripheral roles in Bluetooth communication, restricting scalability and usability.

Innovation Solution

An electronic system capable of automatically determining device roles through broadcast packets, allowing devices to act as both central and peripheral simultaneously, facilitating pairing and connection without pre-definition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If device roles are set in advance as central or peripheral for pairing, then pairing connection can be established between devices, but peripheral devices cannot pair with each other and central devices cannot connect with each other, limiting scalability and extensibility

Engineering Contradiction:

Improvedevice connection flexibilityVSAvoidrole configuration complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device role is changed from a static pre-defined state to a dynamic automatically determined state. Devices can dynamically switch between central and peripheral roles based on real-time communication needs and broadcast packet analysis, enabling flexible multi-to-many connections without manual configuration.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system performs automatic role judgement through broadcast packet exchange and analysis. Devices autonomously determine their own roles (central or peripheral) based on the broadcast packets they receive from other devices, eliminating the need for manual role assignment and enabling self-organizing device networks.

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If devices are configured with fixed roles, then pairing process is simple, but the system cannot support multi-to-many connections and device scalability is limited

Engineering Contradiction:

Improveconnection topology flexibilityVSAvoidrole determination time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

Devices perform preliminary role judgement by exchanging and analyzing broadcast packets before establishing actual data connections. This preliminary action of role determination through broadcast packet exchange enables devices to pre-establish their central or peripheral roles, facilitating subsequent multi-to-many connections without time-consuming manual configuration.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250338129A1Electronic system with automatic role judgement

Publication Date: 2025.10.30 WANG CHENG

AI summary

An electronic system with automatic role judgement is provided. The electronic system includes a first device and a second device. The first device has the capability to act as a central device and a peripheral device role simultaneously, and is configured to activate an automatic pairing mode and continue to transmit a broadcast packet of the first device. The second device has the capability to act as the central device and the peripheral device role simultaneously, and is configured to activate the automatic pairing mode and continue to transmit a broadcast packet of the second device. The first device is configured to perform an automatic role judgement procedure to determine a central device from the first device and the second device according to the broadcast packets of the first device and the second device. The central device is configured to initiate and perform a pairing and connection operation.