File Catalog Management on Wireless Handheld Devices
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Solution Overview
Problem
Wireless handheld devices face challenges in managing media file catalogs due to limited memory and storage capacity, requiring regular file deletion and synchronization with personal or host systems to maintain up-to-date files.
Innovation Solution
A system and method for managing file catalogs on wireless handheld devices, utilizing a catalog module that connects to personal storage and network servers to download, update, and synchronize file metadata, while automatically deleting or queuing files based on user preferences and available storage, ensuring a substantially up-to-date catalog with efficient storage management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If files are stored locally on the handheld device, then file access speed and availability are improved, but device storage capacity is consumed
Solution Approach 1:
The patent segments the file catalog into two parts: metadata stored locally on the handheld device and full files stored remotely on personal or network storage. This allows the device to maintain a lightweight local catalog for fast access while storing large media files externally, resolving the contradiction between local access speed and storage capacity consumption.
Solution Approach 2:
The patent introduces a catalog module as an intermediary that manages the relationship between local metadata and remote files. This mediator enables the device to access and manage files stored elsewhere without requiring the files to be physically present on the device, thus maintaining fast access capability while preserving storage capacity.
2Ease of operation
If a complete file catalog is maintained locally, then file search and management capabilities are improved, but device memory is consumed
Solution Approach 1:
The patent creates a simplified copy of the file catalog in the form of metadata (file names, paths, basic information) stored locally on the handheld device. This metadata copy enables fast search and management operations without requiring the actual media files to be stored on the device, thus improving ease of operation while minimizing memory consumption.
3Reliability
If files are regularly synchronized with personal or host systems, then file up-to-date status is improved, but synchronization time and network usage increase
Solution Approach 1:
The patent extracts only the essential metadata from the complete file catalog and stores it locally on the handheld device. This extraction allows the device to maintain up-to-date file information without requiring full synchronization of all media files, significantly reducing synchronization time and network usage while maintaining reliability of file status information.
Data Source
AI summary
There is disclosed a method and system for managing file metadata stored in one or more catalogs on a wireless handheld device. In an embodiment, the method comprises: connecting to one or more file libraries stored remotely from the device; downloading to the device one or more catalogs storing file metadata for one or more file libraries stored remotely from the device; and remotely updating on the device the one or more catalogs such that the file metadata in one or more file libraries stored remotely from the device are substantially up-to-date on the device.