Broadcast Stream Tagging for Selective DVR Recording
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Solution Overview
Problem
Digital video recorders often fail to record the entirety of live events, such as sporting events or news programs, as they are programmed to stop recording at a predetermined end time, missing exciting or relevant content, and users may be interested in specific sub-content within larger programs.
Innovation Solution
A system and method that injects coded signals into live video streams with descriptive data, allowing receiving devices to identify and record specific sub-content by monitoring these signals, enabling the extension of recording times based on event characteristics and user-defined keywords.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If digital video recorder records live events based on predetermined start and end times, then recording automation is achieved, but content extending beyond predetermined end time is not fully recorded
Solution Approach 1:
The system performs preliminary action by injecting descriptive data tags into the broadcast stream before the recording occurs. These tags contain information about content characteristics, keywords, and segment boundaries that enable the recording device to automatically adjust recording parameters based on actual content rather than fixed schedules.
Solution Approach 2:
The system implements feedback by continuously monitoring the broadcast stream for descriptive data tags and using this information to dynamically adjust recording decisions. The receiving device receives feedback about content characteristics and modifies recording behavior accordingly, extending or shortening recording duration based on actual event development.
2Reliability
If digital video recorder records entire programs, then complete program coverage is achieved, but specific sub-content of user interest may be lost in larger programs
Solution Approach 1:
The system applies segmentation by dividing the broadcast stream into meaningful segments based on descriptive data tags. Each segment is identified by specific characteristics or keywords, allowing the recording device to selectively record only relevant portions rather than entire programs. This creates discrete, identifiable content units that can be independently managed.
Solution Approach 2:
The system extracts specific sub-content from the larger program by monitoring for descriptive data tags that identify content of user interest. Rather than recording the entire program, the system takes out and records only the relevant segments that match user preferences or keywords, eliminating unnecessary content.
3Reliability
If recording extends beyond predetermined end time to capture all content, then content completeness improves, but recording time and storage increase
Solution Approach 1:
The system implements dynamics by making recording duration flexible rather than fixed. The recording time automatically adjusts based on the actual content characteristics identified through descriptive data tags. The system can extend recording when content warrants it or terminate early when content concludes, optimizing both completeness and efficiency.
Solution Approach 2:
The system changes parameters by dynamically modifying recording duration based on content analysis. Instead of using a fixed end time, the system adjusts the recording parameter according to the actual event development and characteristics identified in the broadcast stream, achieving optimal balance between completeness and efficiency.
Data Source
AI summary
A system and method for marking and recording content includes a network operation center receiving an incoming programming stream, monitoring the incoming programming stream, generating descriptive data corresponding to the programming stream, combining the descriptive data with the programming stream to form a composite signal and broadcasting the composite signal to a receiving unit. The system may also include a receiving unit having a monitoring term stored therein. The receiving unit monitors the composite signal for the monitoring term within the descriptive data and storing content or sub-content in a memory of the receiving unit when a monitoring term corresponds to the descriptive data.