Access Token Transfer Between Portable Devices for Secure Remote Control
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Solution Overview
Problem
Existing systems for accessing remotely controllable devices, such as vehicles, lack efficient methods to identify and transfer ownership of software-implemented access tokens among multiple portable electronic devices, leading to potential security issues and inefficiencies in device control.
Innovation Solution
A system where portable electronic devices collect and evaluate parameters like signal strength and motion to identify a preferred device for accessing a remotely controllable device, transferring ownership of a software-implemented access token to ensure secure and efficient access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If software applications are used to emulate key fob functionality on multiple portable electronic devices, then accessibility and convenience are improved, but security risks increase due to multiple devices having access tokens
Solution Approach 1:
The system dynamically determines which portable electronic device should have access token ownership based on real-time conditions such as proximity to the remotely controllable device, user activity state, and device availability. The access token ownership is not static but can be transferred between devices as needed, resolving the contradiction by making security adaptive rather than fixed.
Solution Approach 2:
The patent replaces traditional mechanical key fob systems with software-based access tokens that can be managed and transferred electronically. This substitution allows for more sophisticated security mechanisms including automated transfer protocols, proximity detection, and server-mediated authentication, thereby maintaining security while improving accessibility across multiple devices.
2Adaptability or versatility
If access token ownership is transferred among multiple portable electronic devices, then flexibility and usability are improved, but system complexity increases due to transfer management
Solution Approach 1:
The system introduces a server as an intermediary that mediates access token transfers between portable electronic devices. The server authenticates transfer requests, validates device eligibility, and manages the transfer process, thereby reducing the complexity burden on individual devices while enabling flexible multi-device access token ownership.
Solution Approach 2:
The system performs preliminary authentication and validation checks before executing access token transfers. By pre-verifying device eligibility, user authorization, and transfer conditions, the system simplifies the actual transfer process and reduces the complexity of error handling and conflict resolution during token ownership changes.
Data Source
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AI summary
Multiple portable electronic devices (104.1, 104.2... 104.n) within an exemplary system (100) functionally cooperate amongst themselves to access a remotely controllable device (102). These portable electronic devices execute exemplary prioritization routines to identify a preferred portable electronic device from among the portable electronic devices to access the remotely controllable device. Thereafter, the exemplary system transfers ownership of a software implemented access token to the preferred portable electronic device to allow the preferred portable electronic device to access the remotely controllable device.