Closed Caption Buffering for Missed Text Review
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Solution Overview
Problem
Current TV systems cannot effectively allow viewers to review missed audio segments during interruptions, as existing methods only freeze the current closed caption text and do not provide a way to recall previously displayed text.
Innovation Solution
A method and system that buffers closed caption text and allows its redisplay for a specified time period, enabling viewers to recall missed audio segments by activating a special display mode, which processes and re-displays the text without interrupting video playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the screen or CC is frozen to allow viewers to review text, then the current displayed text can be kept on screen, but the text that has already been shown cannot be recalled
Solution Approach 1:
The system performs preliminary action by continuously buffering closed caption text in memory as it is received from the video source, even before the viewer needs to review it. This allows the text to be readily available for redisplay without requiring complex real-time processing when the review function is activated.
Solution Approach 2:
The patent extracts the closed caption text data from the video signal and stores it separately in a buffer memory, independent of the video playback system. This separation allows the text to be retrieved and redisplayed without interrupting or complicating the video playback function.
2Loss of information
If closed caption text is buffered and redisplayed in a special mode, then viewers can review missed audio segments, but the system requires additional processing and memory resources
Solution Approach 1:
The system buffers closed caption text continuously in advance, so when the viewer activates the review function, the text is already prepared and ready for immediate redisplay. This eliminates the need for energy-intensive real-time processing or recapture of the audio segment.
Solution Approach 2:
The patent creates a copy of the closed caption text data and stores it in buffer memory, separate from the original video signal. This copy can be redisplayed multiple times without requiring additional energy to recapture or reprocess the original audio-visual content.
3Productivity
If the system redisplayS already played on-screen displays without interrupting video frames, then viewers can review text continuously, but the system must manage multiple data streams simultaneously
Solution Approach 1:
The system segments the video signal processing and the closed caption text processing into separate, independent pathways. The video frames continue to play without interruption while the buffered text data is independently retrieved and redisplayed, simplifying the management of multiple data streams.
Solution Approach 2:
The closed caption text is extracted from the video signal and processed separately in a dedicated buffer memory. This extraction allows the text to be redisplayed independently from the video playback, reducing the complexity of managing simultaneous data streams.
Data Source
AI summary
A method and system for playing a video image including video frames and on-screen displays, and displaying an on-screen display associated with a video frame already played without interrupting the playing of the video frames. The displaying of the on-screen displays can be activated by the user commands received from a user. The user can select on-screen displays associated with frames of the video image played in a past pre-defined interval.