Casino chip with antitheft and antiforgery tag circuit and manufacturing method thereof

Abstract

Disclosed is a casino chip with an antitheft and antiforgery function and a method of manufacturing such chips. The casino chip is provided with an RF tag circuit which is capable of exposing an offender, by means of an electronic security system consisting of transmitters and receivers, when the offender steals authorized chips from a casino or wrongfully uses forged chips in the casino. The tag circuit (30) is not damaged because the tag circuit is protected by a preform (10, 20, 40, 50) even though the preform comprising the thin tag circuit, which is susceptible to high temperatures, is subjected to an insert-injection molding step, thereby preventing theft of the casino chip.

Description

TECHNICAL FIELD [0001] The present invention relates, in general, to a casino chip with an antitheft and antiforgery function and a method of manufacturing such chips and, more particularly, to a casino chip, which is provided with an RF tag circuit capable of exposing an offender, by means of an electronic security system consisting of transmitters and receivers, when the offender steals authorized chips from a casino or wrongfully uses forged chips in the casino. BACKGROUND ART [0002] Currently, a non-contact electronic security system is widely used in various businesses such as stores and libraries, which can expose an offender by using a tag circuit located in wrappers or goods when the offender steals goods from a protected zone. [0003] In a casino, coin-type plastic chips are used in a game instead of cash, 1000, 2000, 5000, 10000, 100000, 1000000, and 10000000 wons are changed with each corresponding chip, and only chips should be used in the casino. [0004] Because chips use...

AI Technical Summary

Benefits of technology

"The present invention aims to provide a casino chip with a tag circuit that can be detected by an electronic security system at the entrance of a casino, preventing theft of the chip. The chip is made of plastics and has a thin tag circuit positioned in the center of the chip, which is not damaged during the injection molding process. The chip can also have lines for indicating its value or a special design on its surface. Additionally, the chip has a suitable and convenient weight, made by inserting a heavier material into the center of the chip."

Problems solved by technology

Because chips used in the casino may be worth up to 10000000 wons, employees working in the casino have frequently stolen the chip.

To prevent theft of the chip, separate entrances for employees have been set up in the casino, but robbery of the chip was not sufficiently prevented because the chip is small in size and it is difficult to expose the small chip.

Therefore, when the casino chip is subjected to an injection molding process, the tag circuit in the casino chip may be damaged due to high temperatures, and the tag circuit cannot be positioned in a center of the casino chip due to injection pressure during the traditional injection molding process because the tag circuit is thin and light.

If the tag circuit is not positioned in the center of the casino chip, it cannot be sensed by the electronic security system.

Furthermore, the casino chip manufactured according to a conventional method makes it difficult to variously color the casino chips in order that they may indicate an amount of money, draw lines on a lateral side of the casino chip in order to easily identify the value of a chip when the casino chips are stacked, and draw a special design on a surface of the casino chip.

However, it is difficult to draw lines on the surface of the casino chip with the tag circuit and insert the heavy material into the center of the casino chip, when using casino chips which have been manufactured according to the conventional method.

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