Time-Shifted Viewing Across Schedule Boundaries
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Solution Overview
Problem
Time-shifted viewing systems, such as DVR and nPVR, are limited to viewing within video recording schedule units, preventing seamless viewing across schedule boundaries, requiring frequent session re-establishment and separate requests for continuous playback.
Innovation Solution
A system where a video recording apparatus records and transmits videos in a way that allows continuous transmission of subsequent videos when the reproduction position of the first video exceeds its end point, coinciding with the start and end times of the next video within a predetermined time difference, enabling uninterrupted time-shifted viewing across schedule boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If video recording data is generated delimited in video recording schedule units, then the video recording device can manage recording schedules efficiently, but time-shifted viewing that spans video recording schedules becomes impossible
Solution Approach 1:
The patent segments video recording schedules into individual video recording schedule units, each with unique identification information. This allows the reproducing device to request and receive video recording data for specific schedule units independently, enabling flexible viewing across schedule boundaries while maintaining efficient management of each unit.
Solution Approach 2:
The patent introduces a session management mechanism that acts as an intermediary between the reproducing device and video recording device. The session maintains continuity across multiple video recording schedule units, allowing seamless time-shifted viewing spanning multiple schedules without requiring repeated connection establishment.
2Reliability
If the reproducing apparatus establishes a session with the video recording apparatus for each video recording schedule, then video recording data can be transmitted reliably, but frequent session re-establishment disrupts continuous playback
Solution Approach 1:
The patent extends the session duration to cover multiple video recording schedule units continuously. The reproducing device requests video recording data for successive schedule units within the same session, eliminating interruptions and maintaining continuous playback without frequent re-establishment of connections.
3Productivity
If video recording data ceases to be output at the completion of each video recording schedule, then the video recording apparatus can manage resources efficiently, but time-shifted viewing of succeeding schedules requires separate requests and session re-establishment
Solution Approach 1:
The reproducing device requests video recording data for multiple successive video recording schedule units in advance within a single session. This preliminary action ensures that data for upcoming schedules is already being transmitted or buffered, allowing seamless continuation of playback without waiting for previous schedule completion or re-establishing sessions.
Data Source
AI summary
A transmitting section of the present invention initiates transmission of a second video continuously after completing transmission of a first video being transmitted, in a case that a reproduction position of the first video being transmitted is beyond an end point of the first video, when a video recording start time of a second video stored in a video storage section and a video recording end time of the first video being transmitted coincide within a predetermined time difference.