Portable Media Virus Blocker Metadata Tracking
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Solution Overview
Problem
Existing anti-virus software for portable media systems is cumbersome to install, often conflicts with host computer systems, requires impractical full scans due to increasing memory capacity, and includes unnecessary features, making it inefficient for widespread distribution and effective virus protection.
Innovation Solution
A portable media system with a virus blocker that runs in the background, monitors file accesses, scans only new or modified files for viruses, and constructs metadata to track file changes, allowing for real-time detection and prevention of virus spread without affecting user productivity or conflicting with existing AV software.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AV software is stored on the portable media system to scan files, then virus protection capability is improved, but installation complexity and conflict with host AV software increases
Solution Approach 1:
The patent uses metadata as an intermediary mechanism to enable virus protection. Instead of storing complex AV software on the portable media system, the system generates metadata files that track file states and enable scanning by host AV software, thereby reducing installation complexity while maintaining protection capability
Solution Approach 2:
The patent extracts the essential virus protection function from complex AV software by implementing a lightweight metadata generation system. This extracts only the necessary file tracking capability from full AV software, reducing complexity while preserving core protection functionality
2Measurement precision
If complete scan of portable media system is performed by AV software, then virus detection thoroughness is improved, but scanning time increases significantly
Solution Approach 1:
The patent applies preliminary action by generating metadata files that pre-track file states before scanning occurs. This preliminary tracking of file creation, modification, and access times enables the system to quickly identify which files need scanning, eliminating the need for time-consuming complete system scans while maintaining thorough detection
Solution Approach 2:
The patent implements partial scanning by using metadata to identify only the necessary subset of files that require virus scanning. Instead of scanning all files on the portable media system, the system scans only those files that have been created, modified, or accessed since the last scan, significantly reducing scanning time while maintaining detection effectiveness
3Adaptability or versatility
If AV software includes additional unrelated features, then functionality is improved, but cost and practicality for widespread distribution worsens
Solution Approach 1:
The patent extracts only the essential virus scanning functionality from complete AV software packages. By implementing a minimal metadata generation system rather than including full-featured AV software, the system removes unnecessary features while retaining core protection capability, making the solution more practical for widespread distribution on portable media systems
Data Source
AI summary
A portable media system for a host computer system and method of operation thereof includes: metadata programming in the portable media system, the metadata programming for constructing metadata of a file in the portable media system; and construction programming for constructing new metadata in the portable media system in response to a new file loaded into the portable media system.