Invention Grant
- Patent Title: Gaming chips and table game security system
- Patent Title (中): 游戏芯片和桌面游戏安全系统
-
Application No.: US12221493Application Date: 2008-08-04
-
Publication No.: US09589220B2Publication Date: 2017-03-07
- Inventor: David Nissen
- Applicant: David Nissen
- Agency: Russo & Duckworth, LLP
- Agent David G. Duckworth
- Main IPC: A63F9/24
- IPC: A63F9/24 ; A63F13/00 ; G06F17/00 ; G06F19/00 ; G06K19/067 ; G07F17/32 ; A63F3/00

Abstract:
Gaming chips are provided with embedded radio frequency identification (“RFID”) tags incorporated into a gaming chip for identifying and tracking the gaming chips within a casino, and even upon a gaming table. The gaming chips have a body in the shape of a disc which has a loss tangent of 0.0078 or less, and more preferably of 0.007 or less. For chips operating at 900 MHz, the body has a dielectric constant of 5 or less, and preferably 3-5. For chips operating at 2.45 GHz, the body has a dielectric constant of 5-8. Preferably, the body is made of a blend of plastic, such as PVC, and a dielectric ceramic. The RFID is preferably sandwiched between layers of a high frequency circuit material including top and bottom layers and a center layer have a hole for receiving the RFID. Preferably, the layers of high frequency circuit material have a dielectric constant of 2.5-4 and a loss tangent of 0.002-0.006.
Public/Granted literature
- US20090042642A1 Gaming chips and table game security system Public/Granted day:2009-02-12
Information query