Terminal Apparatus Wireless Printer Connection via Preliminary Classification
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Solution Overview
Problem
Terminal apparatuses face challenges in obtaining necessary information from printers that do not support Service Discovery schemes like WFDS or WFD, leading to unnecessary communication and interpretation issues due to vendor-specific information and non-uniform specifications.
Innovation Solution
The terminal apparatus sends inquiry signals to multiple function executing apparatuses, determines their types, and selectively sends further inquiry signals to compatible ones, allowing it to establish a wireless connection and execute functions only with appropriate devices, thereby preventing unnecessary communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the terminal apparatus sends inquiry signals to all function executing apparatuses using Service Discovery schemes (WFDS or WFD), then the terminal apparatus can obtain information from printers that support these schemes, but unnecessary communication is performed with printers that do not support these schemes
Solution Approach 1:
The terminal apparatus performs preliminary classification of function executing apparatuses into first type (supporting Service Discovery) and second type (not supporting Service Discovery) before conducting Service Discovery communication. This preliminary action prevents unnecessary communication with second type apparatuses while ensuring information can be acquired from first type apparatuses.
2Loss of information
If the terminal apparatus obtains vendor-specific information from printers supporting Service Discovery schemes, then the terminal apparatus can access unique printer information, but the terminal apparatus cannot appropriately interpret the information without vendor-specific programs
Solution Approach 1:
The inquiry signal is segmented into two types: first inquiry signal for obtaining basic information from all function executing apparatuses, and second inquiry signal for obtaining detailed vendor-specific information only from first type apparatuses. This segmentation allows the terminal apparatus to acquire necessary information while avoiding the need for vendor-specific programs by relying on standardized information exchange.
3Adaptability or versatility
If the terminal apparatus establishes wireless connections with multiple function executing apparatuses to ensure compatibility, then the terminal apparatus can select appropriate printers, but communication time and resources are wasted on incompatible devices
Solution Approach 1:
The terminal apparatus performs preliminary classification of function executing apparatuses into first type (supporting Service Discovery) and second type (not supporting Service Discovery) before conducting Service Discovery communication. This preliminary action enables the terminal to establish wireless connections only with compatible first type apparatuses, avoiding time waste on incompatible second type apparatuses while ensuring adaptability.
Data Source
AI summary
A terminal apparatus may send a first inquiry signal to two or more function executing apparatuses; receive a first response signal from each of the two or more function executing apparatuses; and determine whether the function executing apparatus is a first type of function executing apparatus or a second type of function executing apparatus based on the first response signal. The terminal apparatus may send a second inquiry signal to each first type of function executing apparatus; and receive a second response signal from each first type of function executing apparatus; select a target function executing apparatus, by using at least one of first information and second information. The terminal apparatus may establish a wireless connection with the target function executing apparatus via the wireless interface; and send an executing instruction to the target function executing apparatus.