Reformatting Digital Broadcast Multimedia for Mobile Devices
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Solution Overview
Problem
Current systems for delivering digital broadcast multimedia to mobile devices face challenges such as high costs, limited compatibility, and the need for custom software, particularly in reformatting content for real-time rendering and minimizing data rates, especially with 3GPP Progressive Download format.
Innovation Solution
A method and system that reformat incoming mobile broadcast audiovisual content into 3GPP Progressive Download format in real-time, minimizing data rates by adjusting sample sizes and generating metadata to create a universal format compatible with various devices without requiring additional custom software, using a repackaging element connected to the mobile device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If mobile broadcast technology is used to deliver audiovisual content, then network capacity is preserved and multiple devices can receive content simultaneously, but users must upgrade to specialized broadcast-capable phones which reduces compatibility and increases cost
Solution Approach 1:
The patent introduces an intermediary device (broadcast receiver with reformatting capability) that converts broadcast content into a format compatible with standard mobile devices. This intermediary performs real-time reformatting of audiovisual content from broadcast format to 3GPP Progressive Download format, enabling existing mobile phones without specialized broadcast hardware to receive and display broadcast content through their existing data connections and media players
Solution Approach 2:
The system changes the format parameters of the audiovisual content dynamically. The reformatting process adjusts video and audio sample sizes, converts between different compression formats, and modifies data stream characteristics to match the capabilities of standard mobile devices while maintaining the broadcast delivery model
2Adaptability or versatility
If custom software is installed on mobile devices to play broadcast content, then content can be rendered on existing devices, but device complexity increases and user convenience decreases
Solution Approach 1:
The reformatting function is moved from the mobile device to an external intermediary device. This eliminates the need for custom software on the mobile phone itself, as all format conversion is performed externally before the content reaches the device through standard data connections
Solution Approach 2:
The system creates a copy of the broadcast content in a universally compatible format (3GPP Progressive Download) that can be played by any standard mobile device media player, eliminating the need for device-specific or custom software solutions
3Adaptability or versatility
If broadcast content is delivered in real-time with progressive download format, then compatibility with mobile devices is improved, but data rate increases which may exceed connection capabilities
Solution Approach 1:
The reformatting process dynamically adjusts video and audio sample sizes to optimize the balance between format compatibility and data rate. The system modifies compression parameters and sample dimensions to ensure the reformed content can be delivered over standard mobile data connections while maintaining playable quality on mobile devices
Data Source
AI summary
A system and a method reformat digital broadcast multimedia for a mobile device. The system and the method reformat and/or repackage audiovisual content into a format that may be rendered on the mobile device without the need for additional custom software on the mobile device. The system and the method reformat incoming mobile broadcast audiovisual content into 3GPP Progressive Download format in real time while simultaneously delivering a resulting 3GPP Progressive Download file to the mobile device for rendering.