IPTV Metadata Storage for Disconnected Mobile Content Access
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Solution Overview
Problem
Existing systems for outputting content information from mobile devices to IPTV devices face challenges in automatically storing and displaying metadata, leading to undesirable picture quality and limited user access to content after the device is disconnected.
Innovation Solution
An apparatus and method that includes a detection unit for connecting devices, a metadata generator, a storage unit for storing content and metadata, a loader for classifying content, and an output unit for displaying metadata on a screen, allowing content to be accessed even after the source device is disconnected from the IPTV.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contents are transferred through a PC using PNP interface, then content display on DTV is enabled, but picture quality deteriorates and additional devices are required
Solution Approach 1:
The patent extracts the content transfer function directly from the PC-based PNP interface system and implements it within the DTV device itself. The DTV now has built-in capability to receive and process content directly from mobile devices, eliminating the need for intermediate PC transfer and maintaining picture quality while reducing device complexity.
Solution Approach 2:
The patent introduces a metadata-based intermediary system that enables direct communication between mobile devices and DTV. Instead of requiring PC as an intermediary, the metadata structure serves as the mediation mechanism, allowing the DTV to understand and display content from mobile devices directly, thus improving picture quality and reducing device requirements.
2Adaptability or versatility
If DTV does not support PC data sharing, then separate output line is required, but this increases device complexity and connection complexity
Solution Approach 1:
The patent implements a universal metadata-based interface that enables the DTV to handle data from multiple sources (mobile devices, PCs, etc.) through a single standardized mechanism. This multi-functional approach allows the DTV to share and display content from various devices without requiring separate output lines or complex connection configurations, thereby improving adaptability while reducing connection complexity.
3Ease of operation
If source device is disconnected from IPTV, then mobile device portability is maintained, but content access is lost
Solution Approach 1:
The patent applies preliminary action by generating and storing metadata about the content before the source device is disconnected. This metadata contains all necessary information (content description, location, attributes) so that when the device disconnects, the content can still be accessed and displayed based on the pre-stored metadata, thus maintaining content accessibility without losing information.
Solution Approach 2:
The patent creates a metadata copy of the content information that is stored independently in the IPTV system. This copy contains sufficient information to identify and retrieve the content even when the original source device is disconnected, allowing users to access content through the metadata reference without needing the physical device connected, thereby preventing information loss while maintaining portability.
Data Source
AI summary
An apparatus and method for outputting content information are provided. The apparatus includes a detection unit which detects a connection of a source device, a generator which generates metadata related to the source device, a storage unit which stores content stored in the source device and the metadata, a loader which classifies the content based on the metadata, and an output unit which outputs the classified content on a display screen.