NFC Control Unit Mode Switching via Screen Display
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Solution Overview
Problem
Existing near field wireless communication systems, such as those using NFC, often lead to mistaken operations as users cannot selectively switch between different operation modes like reader/writer, card emulation, and peer-to-peer functions without user awareness, resulting in incorrect device interactions.
Innovation Solution
An information processing apparatus with a control unit that manages near field wireless communication modes based on screen display contents, enabling the apparatus to operate in desired modes by switching between reader/writer and card emulation functions automatically or through user prompts, preventing incorrect interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the near field wireless communication function is provided with multiple operation modes (reader/writer, card emulation, peer-to-peer), then the adaptability and versatility of the device is improved, but the device complexity and difficulty of operation increase as users cannot easily switch between modes
Solution Approach 1:
The control unit automatically determines and switches between NFC operation modes based on the detected screen display contents, eliminating the need for manual user intervention. The system serves itself by monitoring its own state (screen content) and autonomously selecting the appropriate communication mode, thereby resolving the contradiction between providing multiple modes and maintaining ease of operation
Solution Approach 2:
The control unit continuously monitors the screen display contents as feedback and uses this information to dynamically adjust the NFC operation mode. This closed-loop control ensures the device operates in the correct mode without user awareness or intervention, maintaining both versatility and ease of operation
2Ease of operation
If automatic mode switching is implemented based on screen display contents, then the ease of operation is improved by preventing mistaken operations, but the device complexity increases due to the need for control unit logic
Solution Approach 1:
The control unit performs multiple functions: it manages the NFC operation modes, monitors screen display contents, determines the appropriate mode based on detected content characteristics, and executes the mode switching. By consolidating these diverse functions into a single multi-functional control unit, the patent manages device complexity while achieving automatic mode switching
Data Source
AI summary
A communication device communicates with an external apparatus including first and second Near Field Communication (NFC) circuits. The communication device includes a display configured to display information, a third NFC circuit, and a controller configured to cause display of first and second screens that prompt a user to carry out an operation for starting NFC communication. The first screen is displayed in a state in which the third NFC circuit is not permitted to perform specified communication with the first NFC circuit but is permitted to perform specified communication with the second NFC circuit, and the second screen is displayed in a state in which the third NFC circuit is permitted to perform specified communication with the first NFC circuit but is not permitted to perform specified communication with the second NFC circuit.