Image Forming Apparatus Dynamic IP Linkage for P2P Connections
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Solution Overview
Problem
Current P2P communication technologies, such as Wi-Fi Direct, face challenges in secure transmission speed and ease of setting up connections for image forming apparatuses like printers, scanners, and multi-function printers, necessitating improved user authentication, connection control, and security management.
Innovation Solution
A method and apparatus for executing application programs through dynamic IP address linkage in image forming apparatuses supporting P2P connections, where the device functions as an access point, allocates dynamic IP addresses using DHCP, stores device information, and links dynamic with static IP addresses for secure and stable operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If Wi-Fi Direct is used for P2P connection, then transmission speed and security are improved, but device complexity and setup difficulty increase
Solution Approach 1:
The image forming apparatus automatically performs IP address allocation through DHCP and maintains a mapping between dynamic and static IP addresses without requiring manual user configuration. The system self-manages the connection parameters and automatically executes application programs based on IP address linkage, eliminating the need for users to manually configure network settings while maintaining fast Wi-Fi Direct transmission speeds
Solution Approach 2:
The patent introduces an intermediary mapping mechanism that links dynamic IP addresses (allocated during P2P connection) with static IP addresses (preset in application programs). This intermediary layer allows application programs to use simple static IP addresses while the system automatically resolves them to the actual dynamic IP addresses, simplifying the user interface without compromising the underlying complex P2P connection management
2Ease of operation
If dynamic IP address allocation is implemented, then ease of connection is improved, but reliability of application program execution deteriorates
Solution Approach 1:
The system performs preliminary action by pre-storing the mapping relationship between dynamic IP addresses and static IP addresses in a list before application program execution. The image forming apparatus maintains this IP address mapping list in advance, allowing application programs to reliably reference static IP addresses that automatically correspond to the currently connected device's dynamic IP address, ensuring both easy connection and reliable execution
Solution Approach 2:
The system implements feedback by continuously monitoring the P2P connection status and updating the IP address mapping list accordingly. When a connection is established or changed, the DHCP-allocated dynamic IP address is automatically linked with the corresponding static IP address from the application program, and this mapping information is fed back to ensure subsequent application executions use the correct IP addresses, maintaining reliability despite dynamic address changes
Data Source
AI summary
An application program may be executed through an Internet protocol (IP) address linkage in an image forming apparatus supporting a peer-to-peer connection. The application program may be executed by performing a method which includes connecting the image forming apparatus to a wireless device through a wireless local area network, driving a soft access point (AP) module of the image forming apparatus so that the image forming apparatus functions as an AP, driving a dynamic host configuration protocol server of the image forming apparatus to allocate a dynamic IP address to the connected wireless device, and linking the dynamic IP address allocated to the wireless device with a static IP address that is preset with respect to the wireless device.