Cloud Multimedia File Handling via Pre-Download Type Detection
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Solution Overview
Problem
Conventional mobile communication systems face bandwidth constraints and unnecessary multimedia file downloads, limiting the ability to efficiently transfer and display multimedia content across different devices and networks.
Innovation Solution
A technique that involves receiving a message with a link to a multimedia file, determining the file type using an HTTP HEAD command, and only downloading the file if it is supported by the device, thereby conserving bandwidth and preventing spam detection by checking file size and ETag consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multimedia files are downloaded to mobile devices, then file display capability is improved, but network bandwidth consumption increases
Solution Approach 1:
The system performs preliminary detection of device file type support capabilities before initiating multimedia file downloads. By checking supported file formats in advance, the system prevents downloading incompatible files that would waste network bandwidth, while still enabling downloads for supported formats.
Solution Approach 2:
The patent introduces an intermediary detection mechanism between the mobile device and the multimedia file source. This intermediary layer checks device capabilities and mediates the download decision, allowing the system to adapt bandwidth consumption based on actual device support without requiring full downloads of all potential file types.
2Adaptability or versatility
If all multimedia file types are downloaded, then device compatibility is improved, but unnecessary downloads increase
Solution Approach 1:
The system applies local quality by detecting specific file type support capabilities of each device and tailoring downloads to match local device characteristics. Instead of universally downloading all file types to every device, the system customizes downloads based on each device's actual supported formats, reducing unnecessary downloads while maintaining compatibility where possible.
3Loss of energy
If file downloads are prevented, then bandwidth conservation is improved, but spam detection capability deteriorates
Solution Approach 1:
The patent extracts only the essential file type information from multimedia files through detection mechanisms, without requiring full downloads. This extracted information is sufficient for spam detection purposes, allowing the system to conserve bandwidth by avoiding complete file transfers while maintaining reliable spam detection through analysis of file metadata and type characteristics.
Data Source
AI summary
A method for handling a cloud hosted multimedia file on mobile devices includes receiving a message with a link to multimedia file, extracting the link and determining an address of multimedia server, contacting the multimedia server to determine a file type and determining whether the file type is supported.