In-Vehicle External Device Registration With Automatic Data Deletion

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Solution Overview

Problem

Existing on-vehicle electronic apparatuses retain information about previously used external devices, potentially exposing sensitive data to others and deterring users from using these devices with external apparatuses.

Innovation Solution

The on-vehicle apparatus includes a storage system with separate areas for registering and storing information about external devices, allowing for secure deletion of information when a use session ends and enabling easy, secure use with external devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the on-vehicle apparatus retains apparatus information about external devices after use, then it enables quick reconnection and maintains device history, but it exposes sensitive data to others and reduces user privacy security

Engineering Contradiction:
Improvequick reconnectionVSAvoiddata exposure risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary registration of external devices during the use period, storing their apparatus information in advance. When use ends, the system automatically deletes this pre-stored information, eliminating the need for manual cleanup while maintaining quick reconnection capability during the active use period.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The apparatus information storage state is made dynamic rather than static. The storage unit automatically adjusts the retention period of apparatus information based on use status - maintaining it during active use for quick reconnection, and automatically deleting it when use ends, thus adapting to different operational states.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If the on-vehicle apparatus automatically deletes apparatus information when use ends, then it enhances user privacy and security, but it requires additional control logic and monitoring mechanisms

Engineering Contradiction:
Improvedata exposure riskVSAvoidcontrol logic complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The determination unit and storage unit work together in a self-service manner where the system automatically monitors use status and triggers deletion without external intervention. The apparatus autonomously manages its own data lifecycle by detecting when use has ended and automatically removing the corresponding apparatus information.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system establishes a feedback loop where the determination unit continuously monitors the use status of external devices and provides feedback to the storage unit. When the feedback indicates that use has ended, the storage unit automatically executes deletion, creating a closed-loop automated control system.

Inventive Principle:
Principle #23Feedback

3Reliability

If the system monitors and determines when use has ended, then it enables automatic data deletion and improved security, but it increases the complexity of the control system

Engineering Contradiction:
Improveautomatic data deletion reliabilityVSAvoidmonitoring system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The determination unit serves multiple functions: it monitors use status, determines when use has ended, and triggers the deletion process. This multi-functional design consolidates what could be separate complex systems into a single integrated unit, reducing overall system complexity while maintaining reliable automatic deletion.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The monitoring and determination functions are merged into the existing control architecture of the on-vehicle apparatus rather than being implemented as separate standalone systems. This integration leverages existing hardware and software resources, reducing the additional complexity that would arise from completely separate monitoring infrastructure.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12563372B2On-vehicle apparatus and control method
Publication Date: 2026.02.24 PANASONIC AUTOMOTIVE SYST CO LTD
  • US12563372B2 patent drawing
  • US12563372B2 patent drawing
  • US12563372B2 patent drawing

AI summary

An on-vehicle apparatus includes: a storage that stores apparatus information related to an external apparatus, the apparatus information being stored for registering the external apparatus as a first apparatus capable of using the on-vehicle apparatus; and a controller that deletes the apparatus information stored in the storage when a use of the on-vehicle apparatus using the external apparatus registered as the first apparatus is determined to have ended.