Terminal Device Proximity Detection for Automatic NFC Triggering

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Solution Overview

Problem

Existing systems for wireless communication between terminal devices and communication devices lack user-friendly mechanisms to initiate wireless communication, particularly in scenarios where proximity-based triggers are required without explicit user input.

Innovation Solution

A terminal device with sensors and a computer-readable recording medium that automatically determines proximity to a communication device and triggers wireless communication mode changes, enabling NFC communication without user selection of buttons, by using signals from sensors like accelerometers, gyroscopes, and image sensors to detect user actions or proximity thresholds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If automatic proximity-based triggering is implemented, then ease of operation is improved, but device complexity increases due to additional sensors and processing requirements

Engineering Contradiction:
Improveease of wireless communication initiationVSAvoidcomplexity of terminal device
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The terminal device automatically detects proximity to the communication device using sensors (accelerometer, gyroscope, image sensor) and triggers wireless communication without requiring explicit user button selection. The device serves itself by autonomously determining when communication should be initiated based on detected proximity or user actions, eliminating the need for manual intervention while managing complexity through integrated sensor processing.

Inventive Principle:
Principle #25Self-service

2Productivity

If proximity detection is used to trigger communication, then productivity is improved by reducing steps, but measurement precision requirements increase for accurate distance detection

Engineering Contradiction:
Improvespeed of wireless communication initiationVSAvoidprecision of distance measurement
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The terminal device utilizes multiple sensors (accelerometer, gyroscope, image sensor) that serve multiple functions. These sensors are not only used for proximity detection but also for detecting user actions and orientation. By making the sensors multi-functional, the system achieves accurate proximity measurement without adding dedicated measurement devices, thus improving productivity while managing precision requirements through existing capable components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10652427B2Non-transitory computer-readable recording medium storing computer-readable instructions for terminal device, and terminal device
Publication Date: 2020.05.12 BROTHER KOGYO KK
  • US10652427B2 patent drawing
  • US10652427B2 patent drawing
  • US10652427B2 patent drawing

AI summary

A terminal device may be configured to acquire a first signal from a hardware of the terminal device, determine, by using the first signal, whether the distance between the terminal device and a communication device is less than or equal to a threshold value, and in a case where it is determined that the distance between the terminal device and the communication device is less than or equal to the threshold, supply a trigger instruction to an Operating System (OS) program of the terminal device even if a button that may be displayed on a display of the terminal device for supplying the trigger instruction to the OS program is not selected. The OS program may (1) display a notification screen on the display unit and (2) supply a change instruction to the first wireless interface.