MFP USB Recognition via Virtual Drive Mounting
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Solution Overview
Problem
USB memories compliant with U3® specifications, which have both data and application areas, are not recognized by embedded OS-based devices like MFPs, leading to difficulties in controlling and accessing them due to the need for peripheral control software updates, resulting in increased costs.
Innovation Solution
An information processing system with an image input and output apparatus and an information processing apparatus connected through a network, using communication devices and controllers to determine if a removable external storage device is recognizable, and if not, transferring data through a connection line to allow access and control, enabling the storage and retrieval of image data via a scanner and printer functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If peripheral control software is downloaded through a network to allow recognition of USB devices, then the USB devices can be controlled, but the cost increases significantly when updates are frequently performed
Solution Approach 1:
The patent creates a virtual copy of the USB device by generating virtual drive letters and mounting the actual USB device to these virtual drives. This allows the embedded OS to access USB devices without requiring device-specific control software, as the USB device appears as a standard file system drive. The copying principle eliminates the need for frequent software updates while maintaining recognition capability.
Solution Approach 2:
The patent introduces an intermediary layer (the virtual file system and mounting mechanism) between the embedded OS and the USB device. This intermediary translates USB device access into standard file system operations that the embedded OS can handle natively, eliminating the need for peripheral control software and reducing update costs.
2Device complexity
If the MFP uses an embedded OS, then the device structure is simplified, but the MFP cannot recognize applications stored in U3® memory
Solution Approach 1:
The system creates virtual drive copies that allow the embedded OS to access U3® memory devices through standard file system interfaces. The virtual mounting mechanism copies the appearance of the USB device into the file system namespace, enabling recognition without adding application-specific software layers.
Solution Approach 2:
The patent implements a universal mounting mechanism that works with any USB storage device regardless of its specific application or protocol. By creating virtual drives and mounting devices universally, the embedded OS gains the ability to recognize and access diverse USB devices including U3® memory without requiring device-specific adaptations.
Data Source
AI summary
It is recognized that an attached USB memory is an unanalyzable USB memory. Then, disconnect setting is made. A USB connection process is performed. A PC is instructed through a connection line to establish USB connection. The PC recognizes that the attached device is a USB-connected MFP. The PC acquires data control information of the MFP. The MFP then transfers, through the connection line, the data control information output from the USB memory.