Content Delivery System Adaptation for Device Compatibility
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Solution Overview
Problem
Content receivers and devices often fail to process and present content due to their capabilities and limitations, and are unable to determine user preferences, leading to inefficient content delivery and quality of service.
Innovation Solution
A system that filters and processes multimedia information based on transport-level packet headers, URLs, cookies, and application-level data, using devices within the content delivery network as mediators to filter content according to device and user capabilities and preferences, allowing for transformation or rejection of content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If content is delivered in high format (HD video, 6-channel sound) to all devices, then content quality is improved, but device compatibility deteriorates
Solution Approach 1:
The content delivery system segments content into multiple format versions (e.g., HD video with 6-channel sound, standard video with stereo sound, audio-only, text) and delivers the appropriate segment based on device capabilities. This allows high-quality content to be provided to capable devices while maintaining compatibility with limited devices through alternative format delivery.
Solution Approach 2:
The system dynamically adapts content format based on real-time device capability assessment. The content server evaluates receiving device parameters and automatically transforms or selects appropriate content versions, enabling the same content source to serve both high-end and low-end devices effectively.
2Measurement precision
If content filtering is performed at user devices, then user preference accuracy is improved, but device processing capability requirements worsen
Solution Approach 1:
Instead of having user devices perform content filtering (which would require powerful processing), the system inverts the approach by having the content server perform filtering based on user profiles and device capabilities. The server receives user preference data and automatically filters/transforms content before delivery, relieving the burden from end-user devices.
Solution Approach 2:
The content server acts as an intermediary between content sources and user devices. It receives raw content, applies filtering and transformation based on user preferences and device capabilities, then delivers optimized content to appropriate devices. This mediator approach enables sophisticated content management without requiring powerful user devices.
3Adaptability or versatility
If all content formats are delivered to all devices, then content availability is improved, but network traffic worsens
Solution Approach 1:
The system performs preliminary assessment of device capabilities and user preferences before content delivery. Based on this pre-evaluation, the content server pre-selects and pre-transforms only the necessary content formats needed for each specific device, avoiding transmission of unnecessary content versions and reducing network traffic while maintaining content availability.
4Adaptability or versatility
If content transformation is performed at user devices, then content adaptability is improved, but device processing load worsens
Solution Approach 1:
The content server serves as an intermediary that performs content transformation before delivery. Instead of requiring user devices to transform content (which would consume device energy and processing resources), the server handles format conversion, filtering, and adaptation, then delivers ready-to-play content to user devices with minimal local processing required.
Data Source
AI summary
Content is received by a device through a port and is analyzed based on a set of predetermined criteria to determine if it matches the characteristics of the device and/or the preferences of a user. The content characteristics are recognized by analyzing the content itself or from tags attached to, associated with or embedded into the content. Acceptable content is then rendered to the user.