Storage Access Control for Stable Content Reproduction

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Solution Overview

Problem

Existing content reproducing devices face instability in reproducing high-resolution content data due to electric noises and increased access load during simultaneous access for downloading other content data, particularly with higher data transfer rates.

Innovation Solution

An information processing device with a reading means that prohibits access to the storage unit during content data reading, suspending or prioritizing other access tasks to ensure stable content reproduction, including using a temporary memory for writing data during reading operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If access to the storage unit is allowed during content data reading for downloading other content data, then productivity is improved, but reliability deteriorates due to electric noises and access load

Engineering Contradiction:

Improvedownload speedVSAvoidreproduction stability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent segments storage unit access into exclusive reading periods and downloading periods. During content reproduction, only reading access is permitted while downloading is suspended. This temporal segmentation eliminates access conflicts and electric noises during reproduction, ensuring reliability while maintaining productivity through dedicated download periods.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system performs preliminary downloading actions during periods when the storage unit is not actively being read for reproduction. By scheduling downloads in advance and executing them during idle periods, the system prepares content for future reproduction without interfering with current playback stability.

Inventive Principle:

Principle #10Preliminary action

2Speed

If higher data transfer rates are used for reading high resolution content data, then speed is improved, but reliability deteriorates due to increased access load

Engineering Contradiction:

Improvedata transfer rateVSAvoidaccess stability

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The patent extracts the downloading function from concurrent operations and separates it into distinct time periods. By taking out the downloading activity from the reproduction timeframe, high-speed reading can operate exclusively without the additional access load that would compromise stability, even at higher data transfer rates.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If access to the storage unit is prohibited during content data reading, then reliability is improved, but productivity deteriorates due to suspended downloading

Engineering Contradiction:

Improvereproduction stabilityVSAvoiddownload efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system dynamically adjusts storage unit access permissions based on the current operation state. During reproduction, writing access is prohibited to ensure stability. During idle periods or when reproduction is not active, downloading is permitted. This dynamic switching resolves the contradiction by adapting access policies to operational context.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP3073710B1Information processing device and information processing method

Publication Date: 2020.04.22 BUFFALO CORP LTD

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AI summary

There is provided an information processing device which can stably reproduce content data. The information processing device reads the content data stored in a storage unit for reproduction of the content data and prohibits access different from the reading access to the storage unit during the reading of the content data.