Loop Recording with Book Marking for Continuous Video Capture
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Solution Overview
Problem
Conventional camcorders face memory limitations, leading to inconvenient and inflexible recording due to memory exhaustion, and existing loop recording technologies fail to distinguish important data, resulting in unnecessary long recordings and difficulties in editing on the go.
Innovation Solution
A camera system that captures image data using a sensor and employs a loop memory to store discrete segments, allowing users to mark and protect specific portions of data from being overwritten, enabling wireless transmission and editing of protected segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If loop recording is used to enable continuous recording, then recording duration is extended, but important data cannot be distinguished from unimportant data
Solution Approach 1:
The patent segments the continuous recording data into discrete clips, with each clip representing a distinct recording segment. This segmentation allows the system to differentiate between important and unimportant data by organizing continuous footage into manageable, individually addressable units that can be selectively preserved or overwritten.
Solution Approach 2:
The system performs preliminary actions by automatically creating a table of contents (TOC) that pre-identifies and marks important clips before the recording loop completes a full cycle. This preliminary indexing allows the system to recognize and protect significant data segments before they would be overwritten by the loop recording mechanism.
2Quantity of substance
If larger memory units are used to store more recording data, then recording capacity increases, but editing and reviewing becomes more time-consuming
Solution Approach 1:
The patent extracts the table of contents (TOC) as a separate data structure from the actual video content. This extracted TOC contains metadata about important clips including timestamps and markers, allowing users to quickly navigate to significant segments without reviewing entire hours of footage, thereby reducing review time while maintaining large memory capacity.
Solution Approach 2:
The system provides feedback to users through the TOC that automatically identifies and highlights important clips based on recording patterns and user behavior. This feedback mechanism guides users directly to relevant content, eliminating the need to manually review all recorded material and significantly reducing the time required to find important data in large memory capacities.
3Reliability
If users stop recording to edit and transfer data, then data can be preserved, but recording continuity is interrupted
Solution Approach 1:
The patent implements a copying mechanism where important clips are copied and marked in the TOC rather than requiring the original recording to be transferred or stopped. The system creates a reference copy of the important segment information in the TOC structure, allowing the main recording to continue uninterrupted while preserving access to critical data through the indexed references.
Data Source
AI summary
A methods in which a camera can store discrete segments of imaged data, using a sensor in the camera to capture image data, using multiple portions of a memory as a loop in which to record the segments in approximately real time, and protecting the multiple portions from being overwritten by subsequent recording in the loop. Recorder continues to record the image data immediately after ending at least one of the segments or immediately after protecting at least one of the segments. Protected data or segments can be wirelessly transmitting a first one of the segments to a memory, and releasing a corresponding one of the multiple portions of memory from protection. Recorder and signal switch are located or as part of an accessory, such as a pair of glasses.