Thumbnail Display Identifier Management for Memory-Constrained Devices
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Solution Overview
Problem
Existing thumbnail image display technologies face challenges in displaying images efficiently on devices with small memory capacity, as they require loading image data for both displayed and adjacent images, which exceeds the memory limits of such devices.
Innovation Solution
A thumbnail image display apparatus and method that uses a detector to identify touch and pan operations, allowing the controller to display identifiers corresponding to thumbnail images without changing the displayed images, and updates the identifier based on movement information, enabling efficient display without loading new images during pan or flick operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If thumbnail image data for displayed images and adjacent images is loaded to memory in advance, then smooth scrolling and display performance are improved, but memory capacity requirements increase
Solution Approach 1:
The patent extracts only the necessary identifier information from the thumbnail images and displays it separately. When a pan operation is detected, only the identifier corresponding to the new thumbnail image is updated and displayed, rather than loading and displaying the entire thumbnail image data. This extraction approach maintains smooth scrolling performance while significantly reducing memory capacity requirements.
Solution Approach 2:
The patent uses identifier copies or references instead of the actual thumbnail image data. The controller stores and displays identifier information that represents each thumbnail image, and when scrolling occurs, only these lightweight identifier copies need to be updated in memory, not the full image data. This copying mechanism enables efficient memory usage while maintaining display functionality.
2Quantity of substance
If only identifier information is displayed without thumbnail images during pan operation, then memory usage is reduced, but user recognition of image content decreases
Solution Approach 1:
The patent performs preliminary action by displaying the identifier information before the actual thumbnail image data would need to be loaded. When a pan operation is detected, the identifier for the next thumbnail image is updated and displayed in advance, preparing the user for the upcoming image content without requiring the full image data to be loaded into memory yet. This maintains user awareness of image content while deferring memory usage.
Data Source
AI summary
The thumbnail image display apparatus includes a display, a detector for detecting an operation including a touch operation and a pan operation performed by a user with the display, a storage for storing a plurality of thumbnail images that can be displayed on the display and identifiers respectively corresponding to the thumbnail images in such a manner that the thumbnail images and the identifiers are associated with each other, and a controller, wherein the controller changes the identifier in accordance with a movement information of the pan operation and displays the identifier on the display, when the detector detects the pan operation upon detecting the touch operation, and the controller reads, from the storage, the thumbnail image corresponding to the identifier displayed on the display and displays the thumbnail image on the display, when the detector detects an end of the pan operation.