Card Shoe Reading Unit for Detecting Irregular Card Sequences

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Solution Overview

Problem

Conventional card shuffling devices fail to ensure complete randomness in card arrangements, leading to potential unfairness in card games, as non-randomly arranged cards can result in unfair game outcomes.

Innovation Solution

A card shoe apparatus equipped with a card reading unit, control unit, and output unit that detects and alerts irregularities in card arrangement, such as sequential ranks, same ranks, same suits, or pre-registered orders, using invisible codes on cards and sensors to ensure random dealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional card shuffling devices are used, then cards can be dealt efficiently, but the randomness of card arrangement cannot be guaranteed

Engineering Contradiction:

Improverandomness of card arrangementVSAvoidcomplexity of card shoe apparatus

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces manual card shuffling and dealing with an automated card shoe apparatus that uses optical reading units to detect card information and control units to manage card distribution. This substitution of mechanical manual operations with automated systems ensures consistent randomness while reducing human error and intervention.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The card shoe apparatus incorporates reading units that continuously detect card information (such as barcodes or magnetic strips) and provide feedback to the control unit. This feedback mechanism allows the system to verify card randomness, track card distribution, and ensure fair dealing by comparing actual card sequences against expected random distributions.

Inventive Principle:

Principle #23Feedback

2Reliability

If manual card dealing is used, then the device complexity is low, but the fairness and randomness of card distribution cannot be ensured

Engineering Contradiction:

Improvefairness of card gameVSAvoidcomplexity of card shoe apparatus

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces manual card dealing with an automated card shoe apparatus that uses optical reading units to detect card information and control units to manage card distribution. This substitution of mechanical manual operations with automated systems ensures consistent randomness while reducing human error and intervention.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The control unit acts as an intermediary between the card shoe mechanism and the dealing process. It receives data from reading units about card positions and compositions, processes this information to determine optimal dealing sequences, and controls the card delivery mechanism accordingly, ensuring fair and random distribution.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If card arrangement irregularities are not detected, then the dealing process is fast, but unfair game outcomes may occur

Engineering Contradiction:

Improvecard dealing speedVSAvoidfairness of card game

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary detection and verification of card arrangement randomness before dealing begins. The reading units scan and record card positions and compositions in advance, allowing the control unit to identify and correct any irregularities before they affect game fairness, thus maintaining both speed and reliability.

Inventive Principle:

Principle #10Preliminary action

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 unfair games by detecting and preventing the dealing of non-randomly arranged cards, ensuring fair game outcomes by alerting dealers and casino management to irregularities.

Implementation Method 1

a card reading unit that reads, from a card, information provided in the card drawn from the card housing unit onto the game table

Methodology Applied

Scientific EffectOptical detection: Reflection

Data Source

PatentUS12409378B2Card show apparatus and table game system

Publication Date: 2025.09.09 ANGEL GRP CO LTD

AI summary

A system includes a card shoe that includes a housing for housing cards and an opening through which the housed cards can be drawn. The system includes a computer to detect whether there is any of the following predefined arrangements: (1) for each of a predefined number of consecutively drawn cards, the respective rank of the respective card is larger or smaller by one than an immediately preceding one of the cards drawn from the card housing; (2) a respective rank of each of a predefined number of consecutively drawn cards is the same; (3) a respective suit of each of a predefined number of consecutively drawn cards is the same; or (4) a same sequence in which a predefined number of the cards are consecutively drawn is repeated.