Communication Device Connection Switching via Disconnect Notice

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Solution Overview

Problem

In wireless display systems, users face difficulties in seamlessly switching communication connections between the wireless display system and existing networks, such as the Internet, due to the need to change wireless LAN connection settings, which disrupts access to resources like public information and intracompany services.

Innovation Solution

A communication device and system that includes a controller to manage connection settings, sending a notice before switching from one device to another, and only changing settings when a connection is not established, allowing for simple switching between wireless display systems and existing networks without requiring users to reconfigure the wireless LAN.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the wireless display system automatically changes connection settings to switch between transmission devices, then the system can handle multiple users, but the connection settings change even when not needed, causing users to lose access to existing networks

Engineering Contradiction:
Improveability to handle multiple transmission devicesVSAvoidmaintaining connection to existing networks
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The notification device sends a disconnect notification to the external device before the connection settings are actually changed. This preliminary action allows the external device to prepare for the connection change, and more importantly, allows the system to check whether the change is necessary before executing it, thereby preventing unnecessary disconnections from existing networks

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where the notification is sent to the external device, which can then respond with connection information. This feedback loop allows the system to verify whether a connection change is actually needed before proceeding, preventing unnecessary disconnections while still enabling multi-device support

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the transmission device changes wireless LAN connection settings to communicate with the wireless display system, then video transmission is enabled, but access to existing networks like the Internet is lost

Engineering Contradiction:
Improvevideo transmission capabilityVSAvoidaccess to multiple networks
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The disconnect notification is sent before the actual connection setting change occurs. This timing allows the system to prepare for the video transmission while maintaining awareness of existing network connections, enabling the user to return to existing networks without full reconfiguration

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The connection settings are made dynamic rather than static. The system can switch between wireless display system connection and existing network connection based on user needs, with the notification mechanism enabling smooth transitions without complete loss of network access

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the transmission device switches connection settings frequently between wireless display system and existing networks, then user flexibility is improved, but the complexity of connection management increases

Engineering Contradiction:
Improveflexibility to switch networksVSAvoidconnection setting management
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The notification mechanism enables a form of self-service where the system automatically manages the connection switching process. The disconnect notification triggers the necessary changes without requiring manual user intervention for each switch, reducing the complexity of connection management while maintaining flexibility

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11071173B2Communication device, communication system, and communication method for switching communication connection
Publication Date: 2021.07.20 SHARP KK
  • US11071173B2 patent drawing
  • US11071173B2 patent drawing
  • US11071173B2 patent drawing

AI summary

A communication device includes a communication part configured to establish a connection to either a first device or a second device, and a controller configured to control the communication part. The controller is configured to send a predetermined notice to the second device before disconnecting the connection with the second device in a predetermined operation mode to switch the connection from the second device to the first device, but the controller does not make the predetermined notice in other cases.