RFID Game Token Structure for Stable Reading in Stacks
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Solution Overview
Problem
Existing game tokens with built-in RFID tags face instability in reading or writing when stacked in various orientations due to varying distances between adjacent tags, and conventional solutions are costly and cumbersome.
Innovation Solution
A game token design with a security part having a smaller diameter and a laminated plastic structure containing the RFID tag, positioned closer to the center, and a recessed portion depth of at least 25% of the token thickness, ensuring uniform tag spacing and stable reading, while being cost-effective and secure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the security part is provided on one surface side of the game token, then the manufacturing process is simplified, but the distance between adjacent RFID tags becomes non-uniform when stacked, causing unstable reading
Solution Approach 1:
The patent moves the RFID tag from the edge region to the central region of the game token, changing the spatial dimension of tag placement. This central positioning ensures that when tokens are stacked, the RFID tags maintain a more uniform distance from the reader, improving reading stability while keeping the manufacturing process simple.
Solution Approach 2:
The patent creates a localized recessed portion in the center of the game token specifically to accommodate the RFID tag. This local structural modification allows the tag to be positioned optimally in the center while maintaining the overall simplicity of the token structure and manufacturing process.
2Reliability
If the RFID tag is embedded in a capsule, then the tag is protected, but the manufacturing cost increases significantly
Solution Approach 1:
The patent extracts the RFID tag from the capsule structure and integrates it directly into the game token body. By removing the separate capsule component and embedding the tag directly in the token's recessed portion, the patent eliminates the need for costly capsule manufacturing and assembly while still providing adequate protection for the RFID tag.
Solution Approach 2:
The patent merges the RFID tag housing function into the game token structure itself. The recessed portion of the token serves both as structural support and as the protective housing for the RFID tag, combining multiple functions into a single integrated design that reduces manufacturing complexity and cost.
3Productivity
If multiple game tokens are stacked for reading, then storage and betting efficiency is improved, but the varying distances between RFID tags cause reading instability
Solution Approach 1:
By repositioning the RFID tag from the edge to the center of the token, the patent creates a more favorable spatial arrangement for stacked tokens. The central positioning ensures that tags in vertically stacked tokens are at more consistent distances from the reader, maintaining reading stability while allowing efficient stacking for storage and betting operations.
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
Stabilizes RFID tag reading across multiple orientations with reduced manufacturing complexity and cost, maintaining security by embedding the tag within the token structure.
Implementation Method 1
the RFID reader communicates with an RFID tag in a non-contact manner by generating electromagnetic waves from an antenna, and reads the information stored in the RFID tag
Data Source
AI summary
A game token by which a plurality of RFID tags embedded in a plurality of the game tokens stacked each other can be read in a relatively stable manner is provided. A game token is provided with a security part and a receiving part that receives the security part. The security part has a shape with a diameter smaller than the diameter of the receiving part, a structure with a plurality of plastic layers laminated together, an RFID tag, and a visible print layer indicating a type or ID of the game token. The receiving part has a surface. The surface of the receiving part has a recessed portion for receiving the security part, and the depth of the recessed portion is 25% or more of the thickness of the game token.