Optical Card Programming for Secure High-Speed Personal Data Loading
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Solution Overview
Problem
Existing magnetic card technologies face challenges in efficiently and securely programming multiple types of data, including dynamic information and security codes, while minimizing errors and interference during mass production.
Innovation Solution
The implementation of a dynamic magnetic communications device, such as a magnetic encoder or emulator, combined with a bi-stable or non-bi-stable display, capacitive touch sensors, and infrared communication protocols, allows for simultaneous data transmission and reception across multiple interfaces, including RFIDs, IC chips, and magnetic stripe readers, with security features to prevent unauthorized access and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication interfaces (RFID, IC chip, magnetic stripe, light transmitter/receiver) are integrated into a single card, then the card's adaptability and communication capabilities are improved, but the device complexity increases significantly
Solution Approach 1:
The card is designed as a universal communication platform that integrates multiple communication interfaces (RFID, IC chip, magnetic stripe, and optical communication) into a single device. This allows the card to perform diverse communication functions with different readers and systems, achieving multi-functionality that resolves the contradiction between adaptability and complexity.
2Speed
If a dynamic magnetic communications device is used to change magnetic information or generate electromagnetic fields for data communication, then the speed and efficiency of data transmission are improved, but the reliability of data reading may be affected due to potential interference or errors
Solution Approach 1:
The system incorporates feedback mechanisms where the magnetic emulator or encoder provides signals to the reader, and the reader sends acknowledgment signals back. This feedback loop allows for error detection and correction, ensuring reliable data transmission while maintaining high speed through the dynamic communication capabilities.
Solution Approach 2:
The magnetic communications device dynamically changes parameters such as magnetic field strength, frequency, and encoding patterns during data transmission. These parameter changes enable high-speed communication while the system monitors and adjusts these parameters to maintain reading reliability, resolving the contradiction between speed and reliability.
3Object-affected harmful factors
If light transmitters and receivers are positioned at a distance greater than half an inch apart, then the risk of light receiver picking up transmissions from light transmitter is reduced, but the programming fixture complexity increases
Solution Approach 1:
The system uses an intermediary approach by positioning light transmitters and receivers at optimized distances and using shielding or isolation structures in the programming fixture. This intermediary arrangement reduces unwanted light interference while maintaining effective communication, balancing the contradiction between interference reduction and fixture complexity.
4Ease of operation
If a barcode is displayed across all or substantially all of the card surface, then the ease of reading the barcode by computer vision equipment is improved, but the area available for other information or displays is reduced
Solution Approach 1:
The barcode is displayed across the entire card surface in one dimension, while additional information and displays are arranged in another dimension (vertically stacked or in zones). This dimensional arrangement allows maximum barcode visibility for easy reading while preserving adequate area for other information, resolving the contradiction between ease of operation and available area.
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 approach enables high-speed, secure, and efficient programming of magnetic cards with dynamic information, reducing errors and interference, and supports mass production through conveyor-based assembly lines with precise frequency control and interference reduction.
Implementation Method 1
A light transmitter (e.g., an infrared transmitter) about one end of a card and a light receiver (e.g., an infrared receiver) about the opposite end of a card
Implementation Method 2
A light receiver may take the form of, for example, a photo-transistor, photo-diode, or photo-resistor
Implementation Method 3
A magnetic encoder may change the information located on a magnetic medium such that a magnetic stripe reader may read changed magnetic information from the magnetic medium
Implementation Method 4
A magnetic emulator may generate electromagnetic fields that directly communicate data to a magnetic stripe reader
Data Source
AI summary
A programming device is provided that programs cards, such as payment cards, with data, such as personal data, using light transmitters and receivers. For example, an infrared transmitter may be provided to program personal data (e.g., a customer's credit card number) into a card wirelessly. In doing so, the card may be, for example, completely laminated such that there are no exposed electronic components on the exterior surface of the card and be programmed via light. The programming device may shield the programming components to block ambient light from interacting with those programming components during programming. A conveyor may be utilized to align multiple cards with a programming device to allow assembly-line style programming of the cards.