NFC Control Unit for MFP Wireless LAN Configuration

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Solution Overview

Problem

In multifunctional printers (MFPs) performing near-field wireless communication, the separation of NFC tag and NFC R/W unit modules leads to user inconvenience and incorrect data transmission, as the MFP may send undesired communication setting data due to differing specifications of the NFC R/W unit, preventing mobile terminals from configuring wireless LAN communication.

Innovation Solution

An information processing apparatus with a control unit that determines the presence and functionality of the NFC R/W unit's transmitting capabilities and prohibits its use when the mobile terminal is close, ensuring that only desired communication setting data is sent, regardless of the NFC R/W unit's specifications, by integrating a transmitting function determination unit and a close state determination unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the NFC tag and NFC R/W unit are arranged close to each other, then user convenience is improved, but data transmission reliability deteriorates

Engineering Contradiction:
Improveuser convenienceVSAvoiddata transmission reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system dynamically switches the operational state of the NFC R/W unit based on detection results. When a mobile terminal is detected near the NFC tag, the control unit prohibits the NFC R/W unit from operating in NFC tag mode, thereby dynamically adjusting system behavior to prevent data transmission errors while maintaining user convenience.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control unit continuously monitors the operational state of the NFC R/W unit and the presence of mobile terminals. Based on this feedback, it adjusts whether the NFC R/W unit should be prohibited from operating, creating a closed-loop control system that resolves the contradiction between convenience and reliability.

Inventive Principle:
Principle #23Feedback

2Device complexity

If the NFC R/W unit is placed close to the NFC tag, then device integration is improved, but data integrity deteriorates

Engineering Contradiction:
Improvedevice integrationVSAvoiddata integrity
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The control unit prohibits the NFC R/W unit from operating in NFC tag mode in advance, before any data transmission can occur. This preliminary preventive action ensures that even if the NFC R/W unit is physically close to the NFC tag, it cannot transmit incorrect data, thereby preserving data integrity while maintaining device integration.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system applies a counter-action by prohibiting the NFC R/W unit's NFC tag mode operation. This preliminary anti-action prevents the potential harmful effect of data transmission errors that could occur due to the close physical arrangement of the NFC components.

Inventive Principle:
Principle #9Preliminary anti-action

3Adaptability or versatility

If the NFC R/W unit operates in NFC tag mode, then communication functionality is improved, but transmission accuracy deteriorates

Engineering Contradiction:
Improvecommunication functionalityVSAvoidtransmission accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system dynamically controls the NFC R/W unit's operational modes based on real-time detection. When a mobile terminal is present, the NFC R/W unit is prohibited from operating in NFC tag mode, preventing transmission of incorrect data. This dynamic control maintains communication versatility while ensuring transmission accuracy.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10310783B2Information processing apparatus that performs near-field wireless communication, control method therefor, and storage medium
Publication Date: 2019.06.04 CANON KK
  • US10310783B2 patent drawing
  • US10310783B2 patent drawing
  • US10310783B2 patent drawing

AI summary

An information processing apparatus which is able to reliably send desired communication setting data irrespective of specifications of an NFC R/W unit placed close to an NFC tag. The NFC tag sends data to a mobile terminal, which is put close the NFC tag, via near-field wireless communication. It is determined whether or not the NFC R/W unit has a transmitting function of transmitting other data to the mobile terminal, which is put close thereto, via the near-field wireless communication. In a case where the NFC R/W unit has the transmitting function and it is determined that the mobile terminal is put close to the information processing apparatus, the transmitting function of the NFC R/W unit is prohibited from being used.