Differentiated UUIDs for Multi-Protocol Printer Discovery
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Solution Overview
Problem
Existing information processing devices can only select one printing service when multiple protocols are used, limiting user flexibility in choosing protocols and capabilities for printing.
Innovation Solution
The method involves transmitting distinct identification information for each searching protocol, allowing users to select devices based on desired protocols and capabilities, with the use of universally unique identifiers (UUIDs) to differentiate responses across different protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single identification information is used across multiple searching protocols, then device complexity is reduced, but user flexibility in selecting devices based on desired protocols is limited
Solution Approach 1:
The patent segments the identification information by creating separate identification information for each searching protocol (first identification information for first protocol, second identification information for second protocol). This allows the external terminal to receive and process protocol-specific identification information, enabling flexible device selection based on desired protocols while maintaining manageable complexity through structured organization.
Solution Approach 2:
The patent applies local quality by providing different types of identification information tailored to each searching protocol's requirements. Each protocol receives identification information optimized for its specific needs, allowing the system to adapt to local protocol requirements while maintaining overall system coherence.
2Ease of operation
If multiple search results from one printer are collected and displayed as one printer, then the list of printers is simplified, but users cannot distinguish between different protocol responses
Solution Approach 1:
The patent segments the search results by maintaining separate identification information for each protocol response. Instead of merging all results into a single entry, the system preserves distinct identification information that allows users to distinguish between different protocol responses while still presenting a consolidated view of available printers.
Solution Approach 2:
The identification information acts as an intermediary that carries protocol-specific information from the search results to the user interface. This intermediary element enables the system to maintain both simplicity in the printer list display and preservation of protocol-specific information through the identification information.
Data Source
AI summary
A control method for a device searched for by an external terminal is provided. The method includes: transmitting a first response when a searching request for a first searching protocol is received from the external terminal; and transmitting a second response when a searching request for a second searching protocol different from the first searching protocol is received from the external terminal. Each of the first and second responses includes identification information for uniquely identifying the device. The included identification information is differentiated between the first and second responses.