NFC-Assisted Port Illumination for Mobile Device Connection
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Solution Overview
Problem
Existing mobile devices lack effective illumination for plug-in device ports in low-light environments, making it difficult to systematically and safely connect devices such as USB cables or headphones, and do not provide clear indicators for incompatibility between devices.
Innovation Solution
A near-field communication (NFC) system with a mobile wireless communications device that includes a light source and optical sensor to illuminate plug-in device ports based on ambient light levels and NFC communications, and a controller to adjust illumination levels and display indicators for proper connection and incompatibility, using NFC sensors to facilitate controlled plugging and display messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a light source is added to illuminate plug-in device ports, then visibility and ease of connection improve, but device complexity and energy consumption increase
Solution Approach 1:
The patent combines the illumination function with the existing display system by integrating light sources around the plug-in device ports that can be controlled through the same controller (1000) that manages the display (1600). This merging approach adds illumination capability while utilizing existing control infrastructure, thereby reducing the increase in device complexity.
Solution Approach 2:
The system performs preliminary detection using NFC sensors (1020, 1030) to identify when a plug-in device is approaching or being connected. Based on this preliminary detection, the controller activates illumination only when needed, rather than keeping it continuously on. This reduces energy consumption and allows the illumination system to be activated on-demand without requiring constant power.
2Illumination intensity
If illumination is provided continuously, then visibility is always sufficient, but energy consumption increases
Solution Approach 1:
The illumination system operates periodically rather than continuously. The controller (1000) activates the light sources based on periodic detection of connection events through NFC sensors (1020, 1030). The illumination is turned on when a plug-in device is detected and turned off when connection is complete or no device is present, creating a periodic on-demand illumination pattern that reduces energy consumption while maintaining visibility when needed.
Solution Approach 2:
The system uses feedback from NFC sensors (1020, 1030) to control illumination. The sensors continuously monitor for the presence of plug-in devices and provide feedback signals to the controller (1000), which adjusts illumination accordingly. This feedback mechanism ensures illumination is provided only when actually needed, optimizing the balance between visibility and energy consumption.
3Ease of operation
If NFC sensors are used to detect plug-in devices, then connection assistance improves, but device complexity increases
Solution Approach 1:
The NFC sensors (1020, 1030) are integrated into the existing mobile device architecture and serve multiple functions: detecting plug-in devices, establishing wireless Bluetooth connections, and providing connection status information to the controller. This multi-functionality allows connection assistance to be provided without adding dedicated single-purpose components, thereby minimizing the increase in device complexity.
Solution Approach 2:
The system provides self-service connection assistance by automatically detecting plug-in devices through NFC sensors and activating illumination without requiring user intervention. The controller (1000) autonomously monitors sensor inputs and adjusts illumination based on detected connection events, eliminating the need for manual switching or user-configurable settings and simplifying the user interface.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the ability to systematically and safely connect devices by providing controlled illumination of plug-in ports based on ambient light and NFC communication, and clearly indicates compatibility issues, improving user experience in various lighting conditions.
Implementation Method 1
NFC technology is used for contactless short-range communications based on radio frequency identification (RFID) standards, using magnetic field induction to enable communication between electronic devices
Implementation Method 2
at least one light source carried by the portable housing and positioned to illuminate the at least one plug-in device port
Data Source
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AI summary
A near-field communication (NFC) system (30) may include a plug-in device(s) (31) including a first NFC sensor, and a mobile wireless communications device (33). The mobile wireless communications device may include a portable housing defining a plug-in device port(s), a light source(s) (37) carried by the portable housing and positioned to illuminate the plug-in device port(s), an optical sensor carried by the portable housing configured to determine an ambient light level, and a second NFC sensor carried by the portable housing and configured to establish NFC communications with the first NFC sensor when in close proximity therewith. A controller (39) may be carried by the portable housing and coupled to the light source(s), the optical sensor, and the second NFC sensor and configured to cause the light source(s) to illuminate the plug-in device port(s) based upon NFC communications between the first and second NFC sensors and the ambient light level.