Smart Device Session Transfer via Credential Exchange

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Solution Overview

Problem

Smart devices struggle to seamlessly transfer tasks between devices without user intervention, leading to inconvenience and security risks, especially when handling sensitive information, as tasks often continue on one device even after the user has left its detection area.

Innovation Solution

A system and method for transferring a session between smart devices, where the first device detects the user's exit, notifies a server, and upon the user entering the detection area of a second device, the session is authenticated and resumed using a credential exchange, ensuring secure and automatic task continuation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a smart device continues executing a task after the user leaves its detection area, then the task execution is maintained without interruption, but security risks increase and sensitive information may be exposed to unauthorized people

Engineering Contradiction:
Improvetask execution continuityVSAvoidsecurity risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The smart device continuously monitors user presence through detection mechanisms (camera, motion sensors, microphone) and receives feedback about whether the user is still within the detection area. Based on this feedback, the device automatically pauses or continues the task, creating a closed-loop control system that adapts to user location in real-time

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

A server acts as an intermediary between multiple smart devices and the user's account profile. The server receives notifications from the first smart device about user absence, manages the session transfer process, authenticates the second smart device, and coordinates the credential exchange, enabling secure automated task transfer without requiring direct user intervention

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a user must manually command a smart device to transfer a task, then task transfer can be controlled, but user convenience decreases and the process becomes cumbersome

Engineering Contradiction:
Improvetask transfer controlVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system enables automated task transfer that operates without user intervention. The smart devices self-monitor user presence, self-initiate transfer requests when the user leaves, self-authenticate with the server, and self-complete the session transfer, eliminating the need for manual user commands while maintaining secure control

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary authentication and credential exchange before the task transfer is needed. User profiles are pre-associated with multiple smart devices, and authentication credentials are exchanged in advance, so when task transfer is required, the process can complete immediately without requiring user action

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If session transfer between smart devices is automated, then user convenience increases, but device complexity and authentication requirements increase

Engineering Contradiction:
Improveautomatic task transferVSAvoidauthentication mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system creates a copy of the user's authentication credentials and transfers them from the first smart device to the second smart device through the server. This credential copying mechanism allows the second device to authenticate and continue the session without requiring the user to manually re-enter credentials or complex authentication sequences

Inventive Principle:
Principle #26Copying

Data Source

PatentUS11563815B2Session passing between smart devices
Publication Date: 2023.01.24 OMNISSA LLC
  • US11563815B2 patent drawing
  • US11563815B2 patent drawing
  • US11563815B2 patent drawing

AI summary

Systems and methods are described for passing a session between smart devices. A user can initiate a session on a first smart device. The first smart device can detect the user exiting a detection area associated with the first smart device. The first smart device can pause the session and notify a server. The server can instruct a device of the user to listen for a device identifier of a second smart device. The second smart device can detect the user entering a detection area and broadcast a device identifier. The user device can receive the device identifier and send it to the server. The server can verify the device identifier and send a credential to the user device. The user device can send the credential to the second smart device. The second smart device can authenticate with the server using the credential. The second smart device can then continue the session.