EPG Accumulation in Recorded Transport Stream Files
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Solution Overview
Problem
Conventional methods for displaying electronic program guides (EPG) of recorded transport stream (TS) files are inefficient, as they separately store TS playback and EPG information files, making file management difficult and requiring users to play the TS file from start to end to recognize all recorded broadcasting content, leading to inefficiency and potential loss of EPG information.
Innovation Solution
A digital broadcast receiving apparatus and method that processes and accumulates TS playback and EPG information files together, allowing for real-time updating and storage of EPG information, enabling users to recognize all recorded broadcasting content without playing the file from start to end, by generating a combined recorded TS file that includes all necessary EPG information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If TS playback file and EPG information file are separately stored, then file storage is simple, but file management becomes difficult and EPG information may be lost
Solution Approach 1:
The patent combines the TS playback file and EPG information file into a single integrated recorded TS file. The EPG information is embedded within the TS file structure, allowing both video content and program guide information to be stored together in one file, thereby simplifying file management while preventing information loss.
Solution Approach 2:
The recorded TS file serves multiple functions simultaneously: it acts as both the video playback file and the EPG information storage. This multi-functional design eliminates the need for separate storage systems and allows the single file to provide both content delivery and program guide services.
2Quantity of substance
If TS playback file and EPG information file are separately stored, then storage capacity is optimized, but users must play file from start to end to recognize all content
Solution Approach 1:
The EPG information is extracted and accumulated during the recording process itself, before playback occurs. This preliminary preparation of program guide data allows users to view content information immediately upon playback without having to fast-forward through the entire file to find desired programs.
Solution Approach 2:
The patent introduces an EPG information extraction and accumulation mechanism that acts as an intermediary between the TS file and the user interface. This mediator processes the recorded data to generate accessible program guide information, enabling users to efficiently navigate and select content without linear playback.
3Loss of information
If multiple EPG information files are accumulated, then complete content information is available, but file management and storage becomes complex
Solution Approach 1:
Multiple EPG information files are merged into a single accumulated EPG data structure within the recorded TS file. Instead of managing multiple separate EPG files, the system consolidates all program guide information into one integrated file, maintaining completeness while simplifying management.
Solution Approach 2:
The patent discards the need to manage multiple separate EPG files by recovering and consolidating their contents into a single accumulated EPG information file. This process eliminates redundant file management while preserving all necessary program guide data.
Data Source
AI summary
A method and apparatus for displaying an EPG of a recorded TS file. The method and apparatus enables a user to recognize in advance digital broadcasting content (i.e., broadcasting programs) recorded using the EPG of the recorded TS file by accumulatively storing EPG information of the corresponding broadcasting content when recording the respective broadcasting content transmitted from a plurality of broadcasting stations.