Display Fingerprint Matching Local Remote Storage
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Solution Overview
Problem
Current methods for recognizing displayed content are inefficient, either due to long matching times when using external servers or limited storage capacity when storing fingerprints locally on a display apparatus.
Innovation Solution
A display apparatus and control method that extracts fingerprints from displayed content, matches them with prestored fingerprints, and when a match is found, retrieves corresponding sections from a server, while also updating and managing storage to prioritize high-importance content and deleting unnecessary fingerprints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a method of matching content with a fingerprint stored in an external server is used, then a large amount of content can be stored, but the matching period becomes long
Solution Approach 1:
The patent segments the fingerprint database into two parts: a local fingerprint storage in the display apparatus for quick matching of frequently accessed content, and a remote fingerprint database on the server for storing comprehensive content fingerprints. This segmentation allows the system to achieve both fast matching (using local storage) and large content capacity (using remote storage)
Solution Approach 2:
The system performs preliminary action by pre-storing frequently used content fingerprints locally in the display apparatus before they are needed for matching. This advance preparation enables rapid content identification without requiring real-time server communication, thus reducing matching period while maintaining the ability to handle large content volumes
2Loss of time
If a method of matching content with a fingerprint stored in a storage in a display apparatus is used, then the matching period is short, but only a relatively small amount of content can be stored
Solution Approach 1:
The patent segments the fingerprint database into two parts: a local fingerprint storage in the display apparatus for quick matching of frequently accessed content, and a remote fingerprint database on the server for storing comprehensive content fingerprints. This segmentation allows the system to achieve both fast matching (using local storage) and large content capacity (using remote storage)
Solution Approach 2:
The display apparatus is designed with multi-functionality: it can perform local fingerprint matching for rapid content identification while also having the capability to communicate with and access the remote server database. This universal design allows the system to switch between fast local matching and comprehensive remote searching as needed
3Reliability
If fingerprints for all content sections are stored locally, then complete content recognition is possible, but storage space is quickly consumed
Solution Approach 1:
The patent extracts only the essential and frequently needed content fingerprints and stores them locally in the display apparatus. Less frequently accessed content fingerprints remain on the remote server. This selective extraction allows the system to maintain reliable content recognition for common content while minimizing local storage requirements
Data Source
AI summary
A display apparatus and a control method therefor are provided. Contents are displayed, a fingerprint is extracted from the displayed contents, it is determined whether there exists a prestored fingerprint that matches the extracted fingerprint, and when the prestored fingerprint that matches the extracted fingerprint exists, a fingerprint corresponding to the remaining sections of the contents is received from a server.