Smartphone Grip Accessory With NFC Shielding for Secure Authentication
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Solution Overview
Problem
Smartphone accessories with integrated NFC functionality can cause unintended and unwanted Near Field Communication (NFC) operations, leading to malfunctions and security vulnerabilities.
Innovation Solution
A smartphone accessory, Theme Tok, featuring a decoration unit, grip unit, fixing unit, NFC tag, and shielding unit, which allows for controlled NFC communication and authentication, preventing malfunctions and enhancing security by blocking unwanted NFC interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an NFC tag is integrated into a smartphone grip accessory, then authentication functionality is enabled, but NFC malfunction occurs due to continuous unintended communication
Solution Approach 1:
The shielding layer is extracted as a separate functional component between the NFC tag and smartphone body, selectively blocking NFC signals only when the grip accessory is attached, thereby preventing continuous unintended communication while preserving authentication capability when needed
Solution Approach 2:
The NFC communication state is made dynamic rather than static - the shielding layer automatically transitions between blocking and non-blocking states based on whether the grip accessory is attached to the smartphone, enabling the system to adapt its NFC behavior to different usage conditions
2Ease of operation
If an NFC tag is continuously attached to the smartphone, then authentication code transmission is enabled, but security vulnerabilities arise from unwanted NFC operations
Solution Approach 1:
The shielding layer acts as an intermediary control mechanism that mediates between the NFC tag and smartphone, allowing authenticated communication when the grip accessory is properly attached while blocking unauthorized or unwanted NFC operations, thereby enhancing security
3Stability of the object's composition
If a grip accessory is fixed to the smartphone, then grip stability is improved, but NFC recognition malfunction occurs due to continuous NFC operation
Solution Approach 1:
The shielding layer is extracted as a separate functional component within the grip accessory structure, specifically positioned to block NFC signals only when the accessory is attached, thereby maintaining grip stability while preventing NFC recognition malfunction
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
Prevents NFC malfunctions and improves security by ensuring controlled NFC communication and authentication, while providing a design element and ergonomic grip for smartphones.
Implementation Method 1
a shielding unit embedded in the fixing unit to be disposed on one side of the NFC tag
Data Source
AI summary
The present inventive concept provides a Theme Tok. The Theme Tok according to the present inventive concept includes: a decoration unit to which a theme decoration is attached; a grip unit configured of multi-stage folding bellows bodies, one side of which is coupled to the decoration unit; a fixing unit coupled to the other side of the grip unit and attached to a backside of a smartphone; an NFC tag embedded in the fixing unit to perform near-field communication with the smartphone; and a shielding unit embedded in the fixing unit to be disposed on one side of the NFC tag, wherein a unique authentication code of the theme decoration is stored in the NFC tag.