Card Shooter Optical Sensor and DNA Coating Verification
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Solution Overview
Problem
Conventional card shooter apparatuses fail to accurately inspect if a predetermined number of cards (416 cards in eight decks) are prepared within the apparatus and cannot detect fraudulent cards effectively, with existing solutions either separating cards one by one or facing security risks with remote identification using IC chips.
Innovation Solution
A table game system with a card shooter apparatus that includes a card storage unit, an optical sensor to count cards based on reflected light from their end surfaces, and a molecular sequence sensor to verify deck information, ensuring the correct number and authenticity of cards, using DNA-containing coatings for secure identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If cards are separated one by one using a roller to inspect UV codes, then individual card inspection is achieved, but the system cannot verify the total predetermined number of cards in the stack
Solution Approach 1:
The patent replaces the mechanical roller-based card separation system with an optical detection system. The optical sensor detects the end surfaces of cards in the stack without requiring physical separation, enabling simultaneous verification of both individual card presence and total card count through optical signal analysis.
Solution Approach 2:
The patent transitions from inspecting cards in a single dimension (one by one through separation) to inspecting cards in multiple dimensions simultaneously. By detecting end surfaces of multiple cards at once using optical sensors positioned to capture reflections from different depths in the stack, the system verifies both individual cards and total quantity concurrently.
2Ease of operation
If IC chips with antennas are embedded in cards for remote identification, then remote card inspection is enabled, but information security is compromised due to hacking risks
Solution Approach 1:
The patent replaces the expensive and security-vulnerable IC chip with a disposable, inexpensive DNA-containing coating on the card surface. This coating provides unique identification through molecular sequences that are extremely difficult to replicate or hack, achieving secure remote inspection without the security vulnerabilities of electronic chips.
Solution Approach 2:
The patent introduces DNA-containing coating as an intermediary between the card and the reading system. This molecular layer serves as the identification medium, replacing direct electronic communication through IC chips with optical or other non-contact detection methods that read the DNA sequences, thereby eliminating the security vulnerabilities of embedded electronics.
3Measurement precision
If UV ink codes are used on cards for identification, then card type detection is achieved, but the system cannot verify the predetermined number of cards in the stack
Solution Approach 1:
The patent merges the card type identification function (UV ink codes) with the quantity verification function into a single optical detection process. The optical sensor simultaneously reads the end surface characteristics for type identification and detects the presence/absence of multiple card end surfaces to verify total quantity, combining both functions in one inspection step.
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 accurate counting and verification of card quantities and detection of fraudulent cards within the apparatus, ensuring game integrity and security by using DNA-containing coatings for secure and invisible deck information.
Implementation Method 1
an optical sensor that receives reflected light of light applied to end surfaces of the plurality of cards stored in the card storage unit
Data Source
AI summary
A table game system with a card counting apparatus having: an optical sensor that is placed below the bottom of a card storage unit that stores a plurality of cards and receives reflected light of light applied to end surfaces of the plurality of cards stored in the card storage unit; and a playing card counting unit that receives a signal from the optical sensor and counts the number of the plurality of cards stored in the card storage unit. The optical sensor is placed so as to receive reflected light from end surfaces of all of the plurality of cards stored in the card storage unit, or configured to be movable across a predetermined section by a sensor scanning unit so as to receive reflected light from end surfaces of all of the plurality of cards stored in the card storage unit.