NFC Interface State Control for Reliable Data Transfer
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Solution Overview
Problem
Existing multi-function communication apparatuses do not adequately handle situations where a wireless network setting should not be sent to a portable terminal via an NFC interface, potentially leading to incomplete or unnecessary data being sent.
Innovation Solution
The communication apparatus includes a first wireless interface with a processor that can operate in different states, allowing it to inhibit sending processes when necessary, by using a prohibition flag to prevent data transmission to the portable terminal during specific operations like writing instructions, connecting processes, or power OFF processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the communication apparatus always sends wireless network settings via NFC interface, then the portable terminal can easily join the wireless network, but incomplete or inappropriate data may be sent during writing or connecting processes
Solution Approach 1:
The NFC interface dynamically changes its operating state based on the current process. The interface transitions between a first state (capable of sending target data) and a second state (incapable of sending target data) depending on whether the controller is performing writing, connecting, or power OFF processes. This dynamic state adjustment ensures data reliability while maintaining ease of operation during appropriate times.
Solution Approach 2:
The invention changes the operational parameters of the NFC interface by switching between different operating states. The controller monitors the current process and adjusts the NFC interface's data sending capability accordingly, changing the parameter of data transmission availability based on the system's operational context.
2Reliability
If the communication apparatus disables sending during writing processes, then data completeness is ensured, but the portable terminal cannot join the network when needed
Solution Approach 1:
The NFC interface operates dynamically, switching between capable and incapable states based on the current process. During writing, connecting, or power OFF processes, the interface transitions to the second state (incapable of sending). During other times, it returns to the first state (capable of sending), thus balancing data completeness with network setup efficiency.
Solution Approach 2:
The controller preliminarily determines the appropriate state for the NFC interface based on the current process before data transmission occurs. By anticipating when writing or connecting processes will occur, the controller proactively disables the NFC interface's sending capability in advance, preventing incomplete data transmission while allowing normal operation during safe periods.
3Reliability
If the communication apparatus uses a prohibition flag to control sending, then inappropriate data transmission is prevented, but the system complexity increases
Solution Approach 1:
The invention extracts the control logic for data transmission into a separate prohibition flag mechanism. The controller independently manages the NFC interface's sending capability through this flag, separating the control function from the data transmission function. This modular approach prevents inappropriate transmission while maintaining relatively simple system architecture.
Data Source
AI summary
One communication apparatus may include a first wireless interface and a controller. The controller is configured to perform: changing the operating state of the first wireless interface from a first state to a second state when the controller is to start a predetermined process during a first period in which the controller is not performing a predetermined process; performing the predetermined process during a second period in which the operating state of the first wireless interface is the second state, the second period being a period after the operating state of the first wireless interface has been changed to the second state; and changing the operating state of the first wireless interface from the second state to the first state in response to the predetermined process being completed.