Bluetooth and WLAN Switching for Function-Specific Device Control

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Solution Overview

Problem

Existing communication systems require users to manually disconnect a first wireless connection to execute a function that necessitates a second wireless connection, such as switching from a Bluetooth connection to a wireless LAN connection, which is inconvenient and disrupts the user experience.

Innovation Solution

A communication apparatus equipped with dual communication units (Bluetooth and wireless LAN) that automatically switches connections without user intervention, allowing simultaneous or sequential execution of functions requiring different wireless protocols.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the communication apparatus is connected via first wireless communication (e.g., wireless LAN), then high-speed data transmission is achieved, but the apparatus cannot simultaneously execute functions requiring second wireless communication (e.g., Bluetooth)

Engineering Contradiction:

Improvedata transmission speedVSAvoidfunction execution capability

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic connection management where the control unit automatically switches between first and second wireless communications based on the execution requirements of different functions. When a function requiring second wireless communication is detected during first wireless communication, the system dynamically transitions to the appropriate communication mode, enabling flexible adaptation to varying operational needs without manual intervention

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the communication parameter (wireless communication method) automatically based on the function being executed. The control unit monitors function execution requirements and switches the active wireless communication protocol accordingly, allowing the apparatus to optimize between high-speed data transmission and other communication-dependent functions through parameter adjustment

Inventive Principle:

Principle #35Parameter changes

2Reliability

If manual disconnection of first wireless communication is required to execute second wireless communication function, then connection stability is maintained, but user operation complexity increases

Engineering Contradiction:

Improveconnection stabilityVSAvoiduser operation simplicity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The control unit performs automatic connection management without requiring user intervention. When a function requiring second wireless communication is detected, the control unit autonomously disconnects the first wireless communication and establishes the second wireless communication, allowing the system to serve itself by managing connection transitions based on functional requirements

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The control unit acts as an intermediary between the communication units and the user, automatically managing the switching between first and second wireless communications. This intermediary function eliminates the need for users to manually disconnect connections, as the control unit mediates the transition based on detected function execution requirements

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If automatic switching between wireless communication methods is implemented, then ease of operation is improved, but device complexity increases

Engineering Contradiction:

Improveautomatic connection switchingVSAvoidcontrol logic complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The control unit is pre-programmed with the logic to detect function execution requirements and automatically initiate appropriate wireless communication switching. This preliminary configuration of control logic enables automatic operation without requiring complex real-time decision-making, as the switching behavior is predetermined based on function types

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12520211B2Communication apparatus and control method

Publication Date: 2026.01.06 CANON KK

AI summary

A communication apparatus, in a state that the communication apparatus and an external apparatus are connected via a first communication unit, enables execution of a first function of the external apparatus requiring a connection via the first communication unit and, in a state that the communication apparatus and the external apparatus are connected via a second communication unit, enables execution of a second function of the external apparatus requiring a connection via the second communication unit. According to an instruction to execute the first function in a state that the communication apparatus and the external apparatus are connected via the second communication unit using a connection with the first communication unit, the control unit disconnects a connection with the external apparatus via the second communication unit and executes the first function.