DVR Reverse Playback Recording Buffer Storage
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Solution Overview
Problem
Current digital TV broadcasting systems limit users to setting a start time for recording television content, making it difficult to record specific moments within a broadcast without knowing the exact start time, and do not allow for on-demand setting of end times or reverse playback for searching desired content.
Innovation Solution
A computing device with DVR functionality that allows users to set an end time for recording, initiate reverse playback, and then set a start time for the recorded portion, saving it in forward-playback order for future playback, using buffer storage to temporarily store media signals and a user interface for editing and sharing clips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users set a start time for recording television content, then the recording can be scheduled in advance, but users cannot easily record specific moments without knowing the exact start time
Solution Approach 1:
The patent inverts the conventional recording approach by allowing users to set an end time first and then use reverse playback to locate the desired start time. This inversion enables users to record specific moments without needing to know the exact start time in advance, as they can play backward from a known end point to find the beginning of the desired segment.
Solution Approach 2:
The system performs preliminary action by pre-recording content up to a specified end time and storing it in buffer memory. This allows the content to be readily available for immediate reverse playback when a user wants to review or share a specific moment, eliminating the need to wait for the content to air or to manually search through recorded material.
2Adaptability or versatility
If the system provides reverse playback functionality, then users can search for desired content by playing backward, but the system complexity increases
Solution Approach 1:
The patent implements reverse playback functionality within the existing DVR architecture, making the system capable of both forward playback and reverse playback. This multi-functionality allows the same hardware and software infrastructure to support multiple content access modes without requiring entirely separate systems, thereby managing complexity while enhancing versatility.
Solution Approach 2:
The buffer memory serves as an intermediary that temporarily stores recorded content, enabling both forward and reverse playback operations. This intermediary component allows the system to manipulate content in flexible ways without directly complicating the core recording and storage architecture, as the buffer acts as a flexible layer between the permanent storage and the playback mechanisms.
3Ease of operation
If the system records content in reverse playback order, then users can easily locate specific moments, but the recorded content must be re-ordered for standard playback
Solution Approach 1:
The system performs the re-ordering operation in advance by automatically reversing the content during the recording process itself. When content is recorded during reverse playback, the system stores it in the correct chronological order from the outset, eliminating the need for complex post-recording re-ordering operations. This preliminary action ensures that the content is ready for standard forward playback without additional processing.
Data Source
AI summary
A method includes receiving and processing an electronic signal that represents television content to provide a first media signal that is playable to present a forward-playback of the television content. The method also includes, responsive to a first instruction, providing a second media signal that is playable to present a reverse-playback of the television content, and recording a portion of the television content that corresponds to the reverse-playback. Further, the method includes, responsive to a second instruction, stopping the recording of the television content. In addition, the method includes, responsive to a third instruction, saving one or more recorded portions of the television content. The method also includes, responsive to receiving a fourth instruction, communicating the saved recording of the television content to a separate computing device.