Digital Video Recorder Metadata Timing Control
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Solution Overview
Problem
Current digital video recorders (DVRs) struggle to accurately record live events with flexible start and end times, often resulting in missed portions of programs due to unscheduled interruptions or extensions, leading to inefficient disk usage and user dissatisfaction.
Innovation Solution
The system employs metadata within digital video streams to monitor program event information and status, allowing for dynamic recording control, ensuring that recordings start and stop at the appropriate times, even if the event extends beyond the scheduled end time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DVR records based on scheduled program times only, then recording simplicity is maintained, but events with flexible end times (like sporting events) are recorded incompletely
Solution Approach 1:
The system continuously monitors the digital video stream for metadata indicating current program information and compares it against the scheduled program lineup. This feedback mechanism allows the DVR to detect when the actual program deviates from the schedule (such as overtime in sporting events) and dynamically adjust the recording end time accordingly, ensuring complete event capture while maintaining automated operation.
Solution Approach 2:
The DVR system automatically adjusts its own recording parameters by monitoring program metadata and comparing it with scheduled times. The system self-corrects recording end times without user intervention, using the program information embedded in the video stream to determine when to stop recording, thereby eliminating the need for manual time adjustment while ensuring complete event capture.
2Reliability
If DVR extends recording time to capture potential event extensions, then event completeness improves, but disk space efficiency deteriorates
Solution Approach 1:
The system monitors program metadata in real-time to detect actual program extensions. Recording is extended only when metadata confirms the program is still actively broadcasting (such as overtime periods in sports), rather than extending based on predetermined buffers. This feedback-driven approach ensures complete event capture while minimizing unnecessary recording and optimizing disk space utilization.
3Measurement precision
If DVR uses metadata monitoring to dynamically adjust recording times, then recording accuracy improves, but processing complexity increases
Solution Approach 1:
The system utilizes metadata embedded within the existing digital video stream as an intermediary carrier of program timing information. Rather than implementing complex external sensing systems, the patent leverages the already-present metadata structure in the video stream to convey program status and timing information, simplifying the overall system architecture while achieving precise timing accuracy.
4Ease of operation
If DVR records entire events with flexible timing, then user satisfaction improves, but storage resource efficiency deteriorates
Solution Approach 1:
The system employs feedback-based recording control that monitors program metadata to determine actual event boundaries. By extending or shortening recording duration based on real-time program status detection (such as detecting when overtime ends or when a program concludes), the system ensures users capture complete events of interest while avoiding unnecessary recording of non-event content, thereby optimizing storage efficiency while maintaining high user satisfaction.
Data Source
AI summary
Aspects of the subject disclosure may include, for example, identifying a media program and receiving a digital media stream including metadata and payload data, wherein the payload data includes program content of the identified media program. The metadata further includes program event information and program status information related to the identified media program. A recording status of the identified media program is determined, wherein an active recording status indicates the identified media program is being recorded at a media recorder. Responsive to the active recording status, an end of program is determined according to the identified media program, the program event information and the program status information. Responsive to the end of program, termination of the recording of the media program is initiated. Other embodiments are disclosed.