Image Display Device Reproduction List Management
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Solution Overview
Problem
Existing image displaying devices for electronic cameras face inefficiencies in reproducing and displaying image data from recording media, particularly in managing large numbers of image files and optimizing data access for smooth playback.
Innovation Solution
The implementation of a system that creates and manages reproduction lists, allowing for efficient access and display of image data by grouping frames and updating frame numbers, enabling swift switching between frames and optimizing memory usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If image data is reproduced sequentially from a recording medium, then the reproduction process is simple, but access time increases and playback smoothness deteriorates
Solution Approach 1:
The patent creates reproduction lists in advance that pre-organize image data access sequences. By preparing multiple reproduction lists with different frame number sequences before reproduction starts, the system eliminates the need for real-time sequential searching, thereby reducing access time and improving playback speed.
Solution Approach 2:
The patent divides image data into multiple groups based on frame numbers and creates separate reproduction lists for each group. This segmentation allows the system to efficiently manage and access specific portions of image data without processing the entire dataset, reducing access time and improving reproduction efficiency.
2Speed
If all image data is loaded into memory, then access speed improves, but memory usage increases
Solution Approach 1:
The patent segments image data into multiple groups with assigned frame numbers and creates corresponding reproduction lists. Only the necessary groups are loaded into memory based on the current reproduction needs, rather than loading all image data. This segmentation approach maintains fast access speed while significantly reducing memory consumption.
Solution Approach 2:
The patent loads only the necessary portion of image data into memory based on the reproduction list requirements. By using partial action (loading only what is needed rather than everything), the system achieves sufficient access speed for smooth playback while avoiding excessive memory usage.
3Ease of operation
If frame numbers are managed sequentially, then the management process is simple, but switching between frames becomes inefficient
Solution Approach 1:
The patent pre-assigns frame numbers to image data groups and creates reproduction lists with optimized frame number sequences before reproduction starts. This preliminary organization of frame numbers enables rapid frame switching during playback without requiring complex real-time management, thereby improving switching efficiency and reducing switching time.
Data Source
AI summary
An image displaying device comprises a reproduction list creating unit for creating a group of image data within a prescribed range in which a frame number “1” is included and the frame number increases as a first reproduction list and for creating a group of image data within a prescribed range in which a largest frame number is included and the frame number decreases as a second reproduction list, a display controlling unit for reproducing and displaying image data of a frame to be reproduced registered in the second reproduction list in the case that the frame number is set in a direction along which the frame number decreases below the frame number “1” while image data registered in the first reproduction list is reproduced.