Cross-Device File Opening Without Constant Network Connection
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Solution Overview
Problem
Existing cross-device file sharing methods are unreliable due to network instability, requiring constant connection between devices and limiting operations to the device storing the file, rather than the device displaying the file.
Innovation Solution
A method where a first device sends file type information to determine compatible second devices, allowing the selected device to open the file independently without maintaining network connection, using broadcast messages, servers, or communication address information to facilitate seamless file sharing across devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If screen sharing is used to display files on another device, then file display capability is improved, but network connection stability requirement increases
Solution Approach 1:
The patent extracts the file data from the source device and transfers it to the target device for local opening. The target device receives the file, stores it locally, and opens it independently without requiring continuous network connection to the source device. This separates the file display function from the network connection requirement.
Solution Approach 2:
The patent performs preliminary file transfer before the actual display operation. The source device sends the file data to the target device in advance, and the target device stores it locally. This preliminary action ensures that the file is available for opening even when network connection is interrupted during the display phase.
2Ease of operation
If file operations are performed on the device storing the file, then file control capability is improved, but device operation flexibility deteriorates
Solution Approach 1:
The patent extracts the file from the source device and transfers it to the target device. Once transferred, the target device can independently perform file operations such as opening, saving, and sharing without requiring connection to or control from the source device. This enables flexible operations on the displaying device rather than being constrained to the storing device.
3Productivity
If constant network connection is maintained between devices, then real-time file sharing is improved, but network resource consumption increases
Solution Approach 1:
The patent uses periodic action in the form of file transfer followed by independent local operation. Instead of maintaining continuous network connection, the system performs file transfer periodically (when needed) and then allows the target device to operate independently. This reduces network resource consumption while maintaining file sharing functionality.
Data Source
AI summary
The present disclosure provides a method, a device and a system for opening cross-device file. The method includes: sending, by a first device, a file type of a file; determining, by the first device, a second device supporting the file type, and sending file information of the file to the second device so that the second device opens the file according to the file information.