Data Recorder File Segmentation for Continuous Storage
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Solution Overview
Problem
Existing data recording technologies face issues when the storage medium reaches its capacity limit, often resulting in data loss or the need for multiple storage media, which complicates user experience and data management.
Innovation Solution
A data recorder that divides data into small files, records them sequentially, and deletes the earliest file when the storage medium reaches capacity, allowing continuous recording by utilizing the freed space, and later couples these files into a single file for seamless data management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If data is recorded continuously in a storage medium until capacity limit is reached, then recording duration is extended, but data loss occurs when capacity is exceeded
Solution Approach 1:
The patent segments a single large data file into multiple small data files (e.g., 100MB each) when the storage medium is full. Instead of overwriting or losing data, the system divides incoming data into smaller units that can be stored in the remaining space, thereby extending recording duration while maintaining data integrity through systematic file segmentation.
2Reliability
If multiple storage media are prepared to avoid data loss, then data integrity is maintained, but device complexity and user operation difficulty increase
Solution Approach 1:
The patent makes a single storage medium perform multiple functions: it serves as both the primary storage and enables continuous recording beyond its apparent capacity limit through file segmentation. The storage medium dynamically adapts its usage pattern, functioning as an expandable storage system that automatically manages file division and reconstruction, eliminating the need for multiple physical media while maintaining data integrity.
3Duration of action of moving object
If multiple storage media are used to continue recording, then recording duration is extended, but ease of operation deteriorates due to media management
Solution Approach 1:
The patent implements a self-service mechanism where the system automatically detects when the storage medium is full and performs file segmentation without user intervention. The control unit automatically divides incoming data into small files, stores them in the remaining space, and manages the reconstruction process, thereby extending recording duration while maintaining ease of operation through complete automation.
4Productivity
If early-recorded data is overwritten to make space, then storage capacity is utilized efficiently, but important data may be unintentionally lost
Solution Approach 1:
The patent takes preliminary action by dividing data into small files before storage, rather than overwriting after storage. By pre-segmenting data into manageable units (e.g., 100MB chunks), the system creates multiple small files that can be stored in the remaining space without affecting existing important data, thereby maintaining both storage efficiency and data protection through proactive file management.
Data Source
AI summary
A device capable of continuing to record data even when a volume of data in a storage medium reaches a capacity limit in the middle of recording the data in the storage medium. A CPU of a data recorder divides data, which are to be recorded in one recording session, into a plurality of small files, and sequentially records the small files into memory. When a volume of data in the memory reaches a capacity limit of the memory, the earliest small file among the small files that are recorded in the memory and that make up the recording session is deleted, and the small files are continually recorded in an available space created by deletion. After completion of recording, all the small files making up the recording session are coupled and recorded in the memory.


