Infrared Card Reading System for Stacked Deck Sequence Detection
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Solution Overview
Problem
Existing systems fail to accurately read and identify the sequence, value, suit, and orientation of playing cards from a stacked deck, limiting magicians' ability to perform tricks that require remote card reading and varying card characteristics.
Innovation Solution
An electronic card reading device and system using Infrared (IR) sensitive cameras to scan uniquely encoded information on the edges, faces, or rears of playing cards, allowing for remote identification of card characteristics and sequence, even when cards are stacked.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If cards are stacked in a deck, then card sequence and characteristics cannot be determined, but if cards are read sequentially one by one, then reading time increases and productivity decreases
Solution Approach 1:
The patent transitions from reading cards in a single dimension (sequentially from top to bottom) to reading cards in multiple dimensions simultaneously. The camera captures the entire deck or multiple cards at once by changing the spatial dimension of reading, allowing all cards to be scanned in parallel rather than sequentially, thus resolving the contradiction between accurate sequence identification and reading speed.
Solution Approach 2:
The patent uses encoded information (barcodes or RFID tags) as copies or representations of card characteristics. Instead of reading the actual card faces sequentially, the system reads encoded data that contains all necessary information about each card's characteristics and position, enabling simultaneous identification of multiple cards without physical sequential handling.
2Reliability
If electronic systems are combined with playing cards, then card reading capability improves, but the extreme thinness of playing cards prevents electronics from being inserted into the cards
Solution Approach 1:
The patent separates the reading system into two independent parts: the cards themselves remain simple and thin without embedded electronics, while the electronic reading device (camera and processor) operates externally. This segmentation allows high-accuracy electronic reading while maintaining the simplicity and thinness of the playing cards, avoiding the need to integrate electronics into the cards.
Solution Approach 2:
The patent introduces an intermediary encoding system (barcodes or RFID tags) that bridges the gap between the physical card and the electronic reading system. These encoded elements serve as mediators that carry card information in a format readable by external electronic devices, enabling reliable card reading without requiring direct electronic integration into the thin card structure.
3Ease of operation
If cards are read from a remote location, then magician performance freedom increases, but existing systems require cards to be placed into a reading machine
Solution Approach 1:
The patent creates a universal reading system that can read cards in multiple positions and orientations (stacked, spread, faced-up, faced-down) using the same external camera-based device. This multi-functional capability eliminates the need for different reading machines for different card arrangements, providing performance flexibility while maintaining a single, manageable device setup.
Solution Approach 2:
The patent replaces mechanical card handling systems (where cards must be physically placed into a reading machine) with an optical/electronic system using cameras and image processing. This substitution allows remote reading of cards in various positions without mechanical contact or physical manipulation, greatly enhancing performance flexibility while keeping the device setup relatively simple.
4Loss of information
If only the top card can be read, then reading device simplicity is maintained, but sequence and characteristics of stacked cards cannot be determined
Solution Approach 1:
The patent uses a camera-based system that captures two-dimensional or three-dimensional spatial information of the entire deck or multiple cards simultaneously. By reading from this spatial dimension rather than sequentially from the top, the system recovers information about all cards including their positions, orientations, and characteristics without increasing mechanical complexity of the reading device.
Solution Approach 2:
The patent uses encoded information (barcodes or RFID tags) as data copies that contain all card characteristics. By reading these encoded copies with a simple camera or RFID reader, the system obtains complete information about multiple cards without complex mechanical reading mechanisms, preventing information loss while maintaining device simplicity.
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
Enables reliable and versatile card reading from any position, allowing magicians to perform complex tricks by determining the sequence and characteristics of all cards in a deck, not just the top card, and communicating results to a user device.
Implementation Method 1
a plurality of Infrared (IR) sensitive cameras for scanning and reading uniquely encoded information printed on the playing cards
Data Source
AI summary
The present invention provides an electronic playing card reading device, a system and method thereof for scanning and reading playing cards in a deck. The device recognizes sequence of every card in a deck by scanning a unique barcode which is inscribed on each playing card. The barcode represents characteristics of the playing cards, including value, suit, color, orientation, and the like. The device uses an IR camera to scan the barcodes of the playing cards; uses a processor to analyze and decode the encoded information in the barcodes and determine the characteristics of the playing cards. This further determines the sequence of the playing cards in the deck. Hence, the card reading device allows a performer a myriad of magic tricks. Also, the device communicates with a user device installed with a scanning application that executes instructions to control the device for scanning and perform various effects.