Digital Camera Image Synchronization via External Device Requests
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Solution Overview
Problem
Current digital camera systems lack efficient methods for managing and synchronizing image data between the camera and external devices, such as personal computers, particularly in deleting images across both devices while maintaining consistency.
Innovation Solution
The system includes a digital camera and an external device connected via a communication cable, allowing the camera to perform image processing and transmit requests for matching processes on the external device, enabling synchronized deletion and processing of image data across both devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If image data is stored only in the digital camera's recording medium, then the camera has simple storage structure, but the user cannot conveniently manage and display images on external devices
Solution Approach 1:
The recording medium is designed to function not only as a storage device for the camera but also as a removable storage device that can be read by external devices. This multi-functionality allows the same medium to serve both the camera's internal storage needs and external device image management, resolving the contradiction between ease of operation and device complexity.
2Reliability
If the camera transfers image data to external devices via cable connection, then data synchronization is achieved, but the operation process becomes complex and time-consuming
Solution Approach 1:
The system creates a copy of the image data on the removable recording medium that can be independently read by external devices without requiring physical connection to the camera. This copying approach maintains data synchronization reliability while simplifying the operation process, as users can transfer and manage images through the removable medium without complex cable connections.
3Adaptability or versatility
If the camera processes images locally only, then processing speed is fast, but the user cannot perform advanced processing on external devices
Solution Approach 1:
The camera performs preliminary image processing and creates processed image data that is stored on the removable recording medium. This preliminary action allows the camera to prepare images for later advanced processing on external devices, maintaining fast local processing speed while enabling versatile advanced processing capabilities through the removable medium.
4Adaptability or versatility
If the system uses removable recording media, then data can be transferred to external devices, but data consistency and synchronization become difficult to maintain
Solution Approach 1:
The system incorporates feedback mechanisms where the camera detects when the removable recording medium is inserted or removed, and automatically manages data synchronization accordingly. This feedback approach enables data transfer capability while maintaining data consistency through automatic synchronization protocols triggered by medium insertion/removal events.
Data Source
AI summary
Digital camera is connected to personal computer via communication cable. When a user operates a key to delete any one of images recorded on memory card of the digital camera, digital camera requests personal computer to delete an image which links to the deleted image and is stored in personal computer. When receiving this command, personal computer deletes the image linked to the image deleted from digital camera. These processes ensure consistency between an original image stored in the digital camera and a copy image stored in the personal computer.