Digital Camera Playback Resumption via Last Displayed Image Marking
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Solution Overview
Problem
Conventional digital photographing devices inconvenience users by requiring them to search for a desired image after the playback mode is terminated, especially when incorrectly terminated, leading to the last stored image being displayed instead of the previously viewed image.
Innovation Solution
The method involves marking the image file last displayed on the display unit when the playback mode is terminated and loading it upon restarting, with additional checks for photographing operations and user signals to determine the correct image to display, ensuring the previously viewed image is shown.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the playback mode displays the last stored image file automatically, then the device operation is simple, but the user convenience deteriorates when the playback mode is incorrectly terminated
Solution Approach 1:
The system performs preliminary action by marking the last displayed image file before terminating the playback mode. This ensures that when playback is restarted, the previously viewed image can be quickly retrieved without requiring the user to search through multiple images, thus preventing user inconvenience while maintaining simple automatic display operation.
2Device complexity
If the playback mode restarts with the last stored image, then the device complexity is low, but the loss of information increases when the user wants to resume viewing a specific image
Solution Approach 1:
Before terminating the playback mode, the system performs a preliminary action of marking the last displayed image file. This preserves the information about which image the user was viewing, allowing the playback mode to restart with the correct image without increasing device complexity or requiring complex retrieval logic.
Solution Approach 2:
The patent introduces an intermediary mechanism (a marker or flag associated with the last displayed image file) that bridges the gap between termination and restart of playback mode. This intermediary preserves the identity of the last displayed image without requiring complex data structures or additional storage, thus preventing information loss while keeping device complexity low.
3Ease of operation
If the system marks and retrieves the last displayed image file, then user convenience is improved, but the device complexity increases due to additional marking and determination logic
Solution Approach 1:
The system performs a simple preliminary action of marking the last displayed image file before playback mode termination. This single marking operation significantly improves user convenience by enabling automatic resumption of the previously viewed image, while the simplicity of the marking operation itself minimizes the increase in device complexity.
Solution Approach 2:
The system implements self-service by automatically marking and retrieving the last displayed image file without requiring user intervention. This improves user convenience by eliminating the need for users to manually search for their previously viewed image, while the automated nature of the process prevents significant increases in device complexity through the use of straightforward control logic.
Data Source
AI summary
A method of controlling a digital photographing device for storing an image file obtained by taking a photograph in a storage medium, and reproducing an image file stored in the storage medium to display on a display unit, the method including: marking an image file corresponding to an image last displayed on the display unit when a playback mode for displaying an image on a display unit is terminated; and loading, when a playback mode is started, an image file corresponding to an image that has been last displayed on the display unit when a previous playback mode is terminated, to display on the display unit.