Auxiliary Bluetooth Circuit Sniffing for Multi-Member Devices

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Solution Overview

Problem

Conventional multi-member Bluetooth devices experience signal interruptions and increased power consumption due to the higher computing load and heat generation of the signal relay circuit, leading to poor user experiences, especially in scenarios like Bluetooth earphones.

Innovation Solution

The implementation of an auxiliary Bluetooth circuit within the multi-member Bluetooth device, which includes a Bluetooth communication circuit, a data transmission circuit, and a control circuit to manage packet sniffing and handover between member circuits, reducing the load on the main circuit and preventing signal interruptions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If one member circuit is appointed as signal relay circuit to act as data communication bridge, then data communication between member circuits is enabled, but computing loading and power consumption increase significantly

Engineering Contradiction:

Improvedata communication capabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent divides the signal relay function into two separate circuits: main Bluetooth circuit and auxiliary Bluetooth circuit. The main circuit handles primary communication while the auxiliary circuit captures packets and provides redundancy, distributing the communication burden and reducing the power consumption burden on a single circuit.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The auxiliary Bluetooth circuit performs preliminary packet capture and buffering before the main circuit needs to switch roles. By pre-capturing packets and maintaining a buffer, the system prepares for potential main circuit failures or high-power states, enabling seamless handover without interrupting data flow.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If signal relay circuit continues operating under high load, then data communication is maintained, but heat generation increases and reliability decreases

Engineering Contradiction:

Improvedata communication continuityVSAvoidheat generation

Core Design Contradiction:

ReliabilityVSTemperature

Solution Approach 1:

The patent implements dynamic role switching between main and auxiliary circuits based on real-time conditions such as power consumption thresholds and packet loss detection. When the main circuit exceeds power or temperature thresholds, or when packet loss is detected, the system dynamically transitions to using the auxiliary circuit for packet capture and communication.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system monitors and changes operational parameters including power consumption thresholds, packet capture modes, and role assignment based on environmental conditions. The auxiliary circuit activates when parameters indicate the main circuit is under excessive load or experiencing communication issues.

Inventive Principle:

Principle #35Parameter changes

3Use of energy by moving object

If new signal relay circuit is appointed when old circuit fails, then power consumption is reduced, but signal interruption occurs during reestablishment

Engineering Contradiction:

Improvepower consumptionVSAvoidsignal continuity

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The auxiliary circuit continuously captures packets and buffers them in advance, so when the main circuit needs to be replaced due to power or failure conditions, the auxiliary circuit already has the necessary packet data ready. This pre-prepared state eliminates the signal interruption that would normally occur during circuit switching.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The auxiliary Bluetooth circuit acts as an intermediary that maintains packet capture functionality independently of the main circuit's operational state. It serves as a backup communication path that can immediately take over without requiring reestablishment of the Bluetooth connection, thus preventing signal interruptions.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Reliability

If auxiliary Bluetooth circuit sniffs packets during main circuit transmission, then packet loss is prevented, but device complexity increases

Engineering Contradiction:

Improvepacket reception completenessVSAvoidcircuit structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The auxiliary Bluetooth circuit uses the same Bluetooth communication interface and packet sniffing capability as the main circuit, leveraging universal Bluetooth functionality rather than requiring specialized hardware. This multi-uses the Bluetooth radio's inherent packet capture ability for both main communication and auxiliary monitoring purposes.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10652781B2Auxiliary bluetooth circuit of multi-member bluetooth device

Publication Date: 2020.05.12 REALTEK SEMICON CORP

AI summary

A auxiliary Bluetooth circuit of a multi-member Bluetooth device includes: a Bluetooth communication circuit; a data transmission circuit; and a control circuit arranged to operably control the data transmission circuit to communicate data with a main Bluetooth circuit of the multi-member Bluetooth device, and arranged to utilize the Bluetooth communication circuit to sniff packets transmitted from the remote Bluetooth device during the period in which the main Bluetooth circuit conducts packet transmission with the remote Bluetooth device. When the auxiliary Bluetooth circuit missed packets transmitted from the remote Bluetooth device, the data transmission circuit is further arranged to operably receive the missed packets from the main Bluetooth circuit.