File Operation Limiting System for Storage Capacity Control

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Solution Overview

Problem

Existing file operation limiting systems struggle to stabilize storage device operations by ensuring that file capacity is controlled within predetermined limits, leading to potential overloading and obstruction of other file operations, especially in environments with multiple users and applications.

Innovation Solution

A file operation limiting system that logically sections storage areas, monitors and limits total file numbers and capacities, and sets upper-limit values for each sectioned area to prevent exceeding storage capacity, allowing for real-time adjustments and buffer allocations to manage file operations effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If file capacity is limited for every file, then individual file capacity control is improved, but total file capacity of all printing data increases causing storage exhaustion

Engineering Contradiction:

Improvefile capacity control precisionVSAvoidtotal file capacity

Core Design Contradiction:

Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent divides the storage device into multiple storage areas (first storage area and second storage area) with different file operation limitation rules. The first storage area applies per-file capacity limits while the second storage area applies total capacity limits, segmenting the storage space to balance individual file control with overall storage management.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different quality control rules are applied to different storage areas. The first storage area uses strict per-file capacity limitations for individual file control, while the second storage area uses total capacity limitations to prevent overall storage exhaustion, creating local quality differences in file operation management.

Inventive Principle:

Principle #3Local quality

2Productivity

If a single user consumes most storage capacity, then that user's file operations are improved, but other users cannot store printing data causing system instability

Engineering Contradiction:

Improveuser file operation efficiencyVSAvoidsystem operational stability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The storage device is segmented into multiple storage areas where different file operation limitation strategies are applied. This segmentation prevents single-user dominance of storage resources by distributing users across different areas with balanced limitation rules.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The file operation limiting device continuously monitors storage capacity usage and dynamically limits file operations based on current totals. This feedback mechanism prevents any single user from exhausting storage resources by actively controlling file operations when thresholds are approached.

Inventive Principle:

Principle #23Feedback

3Use of energy by moving object

If file monitoring is performed in predetermined cycles, then system resource consumption is reduced, but file capacity may temporarily exceed limits causing control uncertainty

Engineering Contradiction:

Improvemonitoring resource consumptionVSAvoidfile capacity control certainty

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The file operation limiting device performs preliminary checks before allowing file operations to execute. By checking total file capacity and per-file capacity limits in advance, the system prevents capacity violations before they occur, ensuring reliable control without continuous monitoring overhead.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system automatically limits file operations based on predefined capacity rules without requiring continuous external monitoring. The file operation limiting device self-manages capacity control by intercepting and evaluating file operation requests against storage limits.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS7444364B2File operation limiting system, file operation limiting program, file operation limiting method, electronics and printing apparatus

Publication Date: 2008.10.28 SEIKO EPSON CORP

AI summary

A file operation limiting system limiting a file operation for a file stored in a storage unit. The storage unit including a file storage area. The file operation limiting system including: a file storage area limiting unit limiting the file operation per file storage area; a total file number obtaining unit obtaining a total file number of a file storage area not limited; a file number limiting unit limiting the file operation when the total file number exceeds a predetermined upper-limit value; a total file capacity obtaining unit obtaining total file capacity of a file storage area not limited by the file storage area limiting unit; and a file capacity limiting unit for limiting the file operation when the total file capacity after the file operation exceeds a predetermined upper-limit value.