Wireless Authentication via RF Range Limitation
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Solution Overview
Problem
Existing wireless communication systems face challenges in simplifying the operation for authenticating wireless communication apparatuses, as current methods require cumbersome manual input, specific device positioning, or wired connections, leading to inefficiencies and security risks due to the need for separate communication means for authentication and data transfer.
Innovation Solution
A wireless communication apparatus that uses a single wireless communication means to initiate authentication by transmitting a search signal with verification data, allowing authentication information to be exchanged only within a limited RF range, enabling detection and recognition of a connection target through RF power displacement, thereby simplifying the authentication process and enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If authentication information is exchanged wirelessly without limiting RF range, then ease of operation is improved, but security deteriorates due to interception risks
Solution Approach 1:
The patent applies local quality by creating a localized authentication zone with limited RF range. The system transmits authentication information only within a specific spatial boundary, ensuring that security protection is applied locally where authentication occurs, while maintaining ease of wireless operation without requiring manual input or wired connections.
2Reliability
If separate communication means are used for authentication and data transfer, then security is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by enabling a single wireless communication means to perform multiple functions: both authentication information exchange and data transfer. The system achieves this by implementing RF range limitation and connection target detection capabilities within the same communication module, eliminating the need for separate authentication and data communication means while maintaining security through the limited RF range.
3Reliability
If manual input of authentication information is required, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The patent applies self-service by enabling automatic authentication information exchange between devices. The system automatically transmits authentication information wirelessly within the limited RF range and performs connection target detection without requiring manual user input, while maintaining security through the localized authentication zone. This eliminates the need for users to manually enter authentication codes while preserving security through the RF range limitation.
4Reliability
If wired connection is used for authentication, then security is improved, but ease of operation and device versatility deteriorate
Solution Approach 1:
The patent applies mechanics substitution by replacing the mechanical wired connection system with a wireless electromagnetic field-based authentication system. The system uses RF signal transmission and connection target detection to achieve authentication without physical cable connections, thereby improving ease of operation and device versatility while maintaining security through RF range limitation and automatic target detection.
Data Source
AI summary
This invention is directed to simplify operation to be performed by an operator and allow authentication processing between two apparatuses while each apparatus uses a single wireless communication unit. For this purpose, when an authentication start instruction button is operated, a host apparatus decreases its RF power to set a communication range to about several ten cm. The host transmits an inquiry signal containing verification data and time interval data. A device which has received this inquiry signal transmits an inquiry response signal containing verification data and information for specifying itself at instructed time intervals. The host transmits authentication information only when this inquiry response is received at the set time intervals, the inquiry response contains verification data, the reception signal intensity changes in a predetermined range, and the inquiry response is sent from one device.