Mini Disc Meta Information Extraction for Content Search
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Solution Overview
Problem
Current information searching devices for mini discs require manual input of disc and track names during recording and playback, lacking meta information such as features of contents like moving or still pictures, voices, graphics, and text, which hinders efficient content searching.
Innovation Solution
A recording device that extracts meta information representing the features of content and records it as management information, allowing objects to be searched based on their content using a face or speaker recognizing circuit, with feature quantities stored in the UTOC area of the mini disc for efficient retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual input of disc and track names is used during recording and playback, then the device can operate with existing UTOC structure, but the input speed and accuracy of keyword creation are limited
Solution Approach 1:
The recording device automatically extracts meta information from the recorded contents and creates keywords without requiring manual input. The extracting unit processes the recorded audio, video, or image data to automatically generate search keywords, allowing the system to serve itself rather than requiring user intervention for keyword creation.
Solution Approach 2:
The patent replaces the mechanical/manual input method with an automated information extraction system. Instead of manually typing or selecting disc and track names, the system uses an extracting unit that automatically processes recorded data to generate keywords, substituting manual operations with automated computational processes.
2Adaptability or versatility
If only name information is stored in UTOC area, then the disc structure remains simple, but meta information such as features of contents cannot be searched
Solution Approach 1:
The patent embeds multiple levels of information within the UTOC area structure. The extracting unit creates meta information that is nested within or associated with the existing UTOC entries, allowing feature data to be stored alongside the basic name information without creating a completely separate storage system.
Solution Approach 2:
The patent adds another dimension to the information storage by incorporating meta information about content features (such as speaker identification, scene detection, or audio characteristics) alongside the traditional name information. This extends the UTOC area from storing only basic identifiers to storing enriched data that enables feature-based searching.
3Productivity
If feature extraction and meta information recording are implemented, then content can be searched by features, but the recording process becomes more complex
Solution Approach 1:
The extracting unit processes and extracts meta information from the recorded contents during or after the recording process. By performing this extraction action preliminarily or concurrently with recording, the system prepares the data for future search operations without requiring separate complex processing steps later, thus managing the complexity through timing and workflow integration.
Data Source
AI summary
An extracting circuit for extracting meta information from information forming contents is provided. The meta information extracted by the extracting circuit is recorded in a recording medium together with the contents and is used as management information. With this configuration, an object can be searched for based on the contents of the object in a recording device for recording contents, such as moving and still pictures, voices, graphics, and text, in a recording medium.