NFC Antenna Placement with Independent Verification Module
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Solution Overview
Problem
The existing near-field communication technology in mobile devices is limited by the fixed location of the NFC chip, which restricts user operations, particularly during transactions, as the chip can only be disposed on the backside of the device, limiting its functionality and convenience.
Innovation Solution
An electronic device design that includes a display module on one surface and a verification module on a different surface, which can generate identification input data through various means such as image sensing, audio receiving, fingerprint identification, or control buttons, allowing for flexible NFC antenna placement and enabling operations beyond the display screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the NFC chip is disposed on the backside of the mobile device, then the near-field communication function can be implemented, but the user cannot execute operations through the display screen during data transmission
Solution Approach 1:
The patent divides the NFC system into separate functional modules: the NFC chip module for wireless communication and the verification module with display for user interaction. This segmentation allows the NFC chip to be positioned on the backside for communication while the display and verification components are positioned separately, enabling independent optimization of each function without compromising the other.
2Ease of operation
If the NFC antenna is disposed on the front side of the mobile device, then the display screen can be used for operations, but the user fails to execute operations through the display screen when transmitting data
Solution Approach 1:
The patent introduces a verification module as an intermediary between the NFC communication function and the display screen. This verification module includes image sensing, audio receiving, fingerprint identification, or control buttons that can generate identification input data independently of the display screen, serving as a mediator that enables reliable identification operations regardless of NFC antenna position.
3Device complexity
If the near-field communication chip location is fixed, then the device structure is simplified, but the utilization of near-field communication is limited
Solution Approach 1:
The patent designs the verification module with multiple functional components (image sensing unit, audio receiving unit, fingerprint identification unit, and control buttons) that can operate independently of the NFC chip position. This multi-functionality approach allows the verification system to work effectively regardless of where the NFC antenna is disposed, thereby increasing the adaptability and versatility of near-field communication without requiring complex reconfigurable structures.
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
This design enhances the convenience of near-field communication by allowing flexible NFC antenna placement and enabling user operations independent of the display screen, increasing the range and flexibility of data transmission and reception, thus improving the overall usability of near-field communication.
Implementation Method 1
Near-field communication is a short-range high-frequency wireless communication technology in which interconnection and intercommunication between electronic devices within a short distance (e.g., 4 centimeter) can be realized by using 13.36 MHz frequency band
Data Source
AI summary
An electronic device includes a display module, an NFC (Near-field Communication) module, a verification module and a control module. The display module is disposed on a first surface of the electronic device. The NFC module includes an antenna unit. The antenna unit is configured to transmit and receive a wireless signal from an outward direction of the first surface. The verification module is disposed on a second surface of the electronic device. The verification module is configured to generate an identification input data according to an operation of a user. The control module is configured to drive the verification module to generate the identification input data when the NFC module receives an identification requirement data, and configured to determine whether the identification input data is valid.