Data Storage Management for Digital Broadcasting
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Solution Overview
Problem
Digital broadcasting recording/reproducing apparatuses face storage capacity limitations, necessitating user-managed data preservation and deletion to ensure recording space, as existing systems lack efficient methods for managing data based on preservation settings and storage capacity.
Innovation Solution
A method and apparatus for managing data in digital broadcasting recording/reproducing devices, which includes setting management information for preserving and deleting data, displaying user interfaces for preservation settings, and automatically managing storage space by identifying and deleting data with expired preservation periods or not previously preserved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the storage capacity of the recording medium is increased, then the recording space is expanded, but the device complexity and cost increase
Solution Approach 1:
The system automatically manages storage space by detecting when the recording medium is full and autonomously deleting recorded materials based on preservation periods without user intervention. The CPU monitors storage capacity and executes deletion operations automatically, allowing the system to serve itself rather than requiring complex user-managed solutions.
Solution Approach 2:
The system changes the parameter of data retention by implementing preservation periods for different recorded materials. Instead of permanently storing all data, the system dynamically adjusts what data is kept based on time parameters, allowing automatic deletion of materials whose preservation periods have expired to make space for new recordings.
2Quantity of substance
If manual data management by users is required, then storage space can be controlled, but the ease of operation deteriorates
Solution Approach 1:
The system automatically monitors storage capacity and executes deletion operations without requiring user intervention. The CPU detects when the recording medium is full and autonomously manages which files to delete based on preservation periods, eliminating the need for users to manually manage their storage space.
Solution Approach 2:
The system continuously monitors the storage capacity of the recording medium and provides feedback to the deletion management mechanism. When the storage reaches a predetermined threshold, the system automatically triggers the deletion of appropriate recorded materials, creating a closed-loop feedback system that maintains optimal storage levels without user input.
3Reliability
If all recorded data is permanently stored, then the reliability of data preservation is improved, but the storage space becomes insufficient for continuous recording
Solution Approach 1:
The system introduces a preservation period parameter that varies for different recorded materials. Instead of permanent storage for all data, the system applies time-based retention policies, allowing automatic deletion of materials after their preservation periods expire. This maintains reliability for important data while freeing space for continuous recording.
Solution Approach 2:
The system pre-establishes preservation periods for different types of recorded materials before storage space becomes critical. By setting these retention policies in advance, the system knows which files to delete first when space is needed, preventing unnecessary data loss while ensuring important recordings are retained.
Data Source
AI summary
An apparatus and method of managing data stored in a data storage unit is provided. Data stored in the storage unit is classified into data to be preserved and deletable data. The data is preserved or deleted on the basis of preservation setting and a preservation period of the data in the storage unit. The preserving and deleting of the data may be automatically or manually performed based on the remaining storage capacity of the storage unit.