Communication Device Seamless Mode Switching Authentication

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Solution Overview

Problem

Existing communication systems face disruptions when switching between multiple communication mechanisms during data transfer, requiring re-authentication and re-transmission of data, which is inconvenient and inefficient.

Innovation Solution

A communication device and method that pre-share communication strategies among multiple modes, allowing seamless switching between communication mechanisms by exchanging available communication modes and authentication information beforehand, ensuring continuous data transfer without the need for re-authentication or re-transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If data is transferred using a specific communication mechanism, then data transmission can be performed, but the communication may be interrupted before transfer is completed

Engineering Contradiction:

Improvecommunication continuityVSAvoidcommunication mechanism flexibility

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies preliminary action by performing authentication and exchanging communication strategy information before actual data transfer begins. The communication device shares authentication information and available communication modes with the other device in advance, so that when communication interruption occurs, the devices can immediately switch to alternative communication mechanisms without requiring re-authentication, thus maintaining communication continuity while adapting to different communication conditions

Inventive Principle:

Principle #10Preliminary action

2Reliability

If a new authentication process is performed when communication is interrupted, then communication can be re-established using a different mechanism, but data must be retransmitted completely

Engineering Contradiction:

Improvecommunication re-establishmentVSAvoiddata retransmission time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent performs authentication and communication strategy exchange in advance before data transfer. When communication interruption occurs, the devices can immediately resume using the pre-shared authentication information and communication strategies, avoiding complete re-authentication and re-transmission, thus reducing time loss while ensuring reliable re-establishment of communication

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent maintains continuity of useful action by preserving the authentication state and communication strategy information across communication interruptions. The devices continue the data transfer operation using alternative communication mechanisms without breaking the authentication context, ensuring uninterrupted useful action rather than restarting the entire process

Inventive Principle:

Principle #20Continuity of useful action

3Reliability

If multiple communication mechanisms are available, then communication can be maintained during interruptions, but the system complexity increases

Engineering Contradiction:

Improvecommunication robustnessVSAvoidcommunication mechanism management

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a communication device that can perform multiple communication functions through a unified architecture. The device manages multiple communication mechanisms (short-range and long-range) and authentication methods through a single control system that automatically selects and switches between them based on communication conditions, thus achieving communication robustness without proportionally increasing device complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9270656B2Communication device, communication method, computer program, and communication system

Publication Date: 2016.02.23 SONY GROUP CORP

AI summary

There is provided a communication device including a communication unit configured to include different communication modes, and an information exchange unit configured to exchange, before the communication unit transmits information to a transmission destination device, an available communication mode and authentication information in advance with the transmission destination device using a communication mode included in the communication unit, the authentication information being used when communication is performed using the communication mode.