POS Printer Pairing via Printed Shared Secret
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Point-of-sale (POS) systems lack enhanced usability functions and the ability to interface effectively with other electronic devices, leading to poor user experience and inefficient transactions.
Innovation Solution
A computer-implemented method and system for pairing a POS printer with a client device using two-way identification, involving the derivation of a shared secret and printing of client device association information to facilitate secure and efficient device pairing through wireless communication protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional POS systems are used without enhanced pairing functions, then device compatibility is limited, but system complexity remains low
Solution Approach 1:
The pairing process is segmented into distinct phases: wireless connection establishment, shared secret derivation, and association information printing. This segmentation allows each component to be optimized independently while maintaining overall system compatibility without excessive complexity
Solution Approach 2:
The patent introduces an intermediary printing step that bridges the wireless connection and final device pairing. The printed association information serves as a mediator that facilitates secure device pairing while maintaining system manageability
2Reliability
If simple connection methods are used, then pairing speed is fast, but security is compromised
Solution Approach 1:
The shared secret is derived preliminarily during the wireless connection phase before final pairing is completed. This preliminary security establishment allows for faster overall pairing while maintaining strong security credentials
Solution Approach 2:
The system performs self-verification of pairing security through the printed association information, which contains verification data that confirms secure pairing without requiring additional manual security checks that would extend pairing time
3Ease of operation
If manual device pairing procedures are used, then user control is high, but user experience is poor
Solution Approach 1:
The system performs automatic wireless connection establishment and shared secret derivation without requiring user intervention. The printing step provides a simple, intuitive interface that users can easily follow, improving user experience while maintaining procedural simplicity
Solution Approach 2:
The patent replaces manual configuration procedures with automated wireless communication and cryptographic operations. The physical printing step substitutes for complex digital configuration interfaces, providing a simpler, more intuitive user interaction model
Data Source
AI summary
A point-of-sale terminal that generates a radio frequency (RF) field through a flat panel display and touchscreen is disclosed. The point of sale device includes a touchscreen, a display positioned behind the touchscreen, and an antenna located behind the display. The antenna can be entirely within the lateral extent of the touchscreen. The antenna can be mounted to the display via a layer of adhesive or mounted to a support frame. The antenna generates the RF field above the touchscreen.