Automatic Mode Switching for Digital Camera Image Transfer
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Solution Overview
Problem
Users face inconvenience and inefficiency when switching communication modes on digital cameras between mass storage and Picture Transfer Protocol (PTP) modes, especially when using digital print systems, as manual setup is required and mistakes are common, leading to difficulties in transferring images to printers.
Innovation Solution
An image sending and receiving system with an automatic mode switching device that switches between communication modes based on transfer instructions, allowing the system to automatically switch to the PTP mode when the transfer button is pressed, eliminating the need for user intervention in mode selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual mode switching through setup menu is used, then communication mode can be changed, but user convenience deteriorates and operation time increases
Solution Approach 1:
The system pre-configures multiple communication modes (mass storage mode, PTP mode, PC camera mode) and automatically selects the appropriate mode based on the connected external device and operation state, eliminating the need for users to manually switch modes through setup menus
Solution Approach 2:
The communication mode switching is performed automatically by the system itself based on detection of the external device type and current operation state, without requiring user intervention or awareness of mode changes
2Ease of operation
If automatic mode switching is implemented, then user convenience improves, but system complexity increases
Solution Approach 1:
The system continuously monitors the connection state with external devices and automatically adjusts communication modes based on feedback from device detection, operation state changes, and transfer instructions, implementing complexity internally while maintaining simplicity for users
3Reliability
If communication mode is not properly set, then transfer accuracy deteriorates and errors occur
Solution Approach 1:
The system pre-configures appropriate communication modes for different external devices and operation states, automatically selecting the correct mode before image transfer begins to ensure transfer accuracy without requiring user knowledge of mode requirements
Solution Approach 2:
The system automatically detects when a transfer instruction is given and self-adjusts the communication mode to the appropriate setting, eliminating user errors in mode selection while ensuring reliable image transfer
Data Source
AI summary
A printer having a digital camera connected thereto checks whether or not a transfer button of the camera is pressed, and checks the communication mode of the camera in the case where it is pressed. In the case where the communication mode of the camera is a mass storage mode, a conversion command for ordering change to a PTP mode is sent to the camera from the printer. The camera performs a bus reset so as to redo configuration and convert the protocol to the PTP mode. In the case where the communication mode of the camera is the PTP mode or is automatically changed to the PTP mode, the image is transferred to the printer in conjunction with operation of the transfer button. Thus, a desired image is transferred to a host such as the printer according to a transfer instruction of an image by the transfer button, etc. on a device side while a user is not conscious of the state of a communication mode and mode switching of the device such as the digital camera.