File Information Display Using Filename-Derived Recording Time

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Solution Overview

Problem

Existing information processing devices inaccurately display the recording date and time for audio files lacking metadata, often showing creation or update dates instead, which may differ from the actual recording date and time.

Innovation Solution

An information processing device acquires the recording date and time from the file name and adds it to the displayed file information when metadata is absent, ensuring accurate display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the information processing device displays creation date or update date for audio files without metadata, then the file can be displayed with a date, but the displayed date may not be the accurate recording date and time

Engineering Contradiction:

Improverecording date and time informationVSAvoidaccuracy of displayed date

Core Design Contradiction:

Loss of informationVSMeasurement precision

Solution Approach 1:

The patent uses the file name as an intermediary source to extract recording date and time information when metadata is unavailable. The file name contains embedded date information that serves as a mediator to provide accurate recording dates without requiring metadata modification

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent performs preliminary extraction of date information from the file name during the file display preparation stage, before the actual display occurs. This ensures the accurate recording date is ready and available when needed, rather than attempting to extract it later

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20260050573A1Information processing device, information processing method, and non-transitory computer-readable storage medium

Publication Date: 2026.02.19 CANON KK

AI summary

An information processing device comprising: a storage unit configured to store file information regarding a file; and a control unit configured to acquire the file information and display the file information and a file name on a display unit, wherein in a case where the file is a file inside which a recording date and time cannot be stored, the control unit acquires a recording date and time from the file name of the file, adds the acquired recording date and time to the file information, and displays the file information on the display unit.