Playing card identification system
US8303404B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2011 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Dec 29, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2009/2489
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A radio frequency card tracking system for a gaming table includes a system computer, a deck of playing cards, one or more table antennas, and a transceiver. Each playing card has an antenna, a card identity, and a transponder. Each table antenna has a detection zone at a dealer's card placement position and/or at locations at a gaming table and can transmit and receive radio-frequency signals to and from a card located within the detection zone. The transceiver is coupled with the table antenna and the system computer to provide radio-frequency-energizing signals to the table antenna for transmission to the card located within the detection zone. The transceiver receives card identifying signals from the table antenna and transfers these signals to the system computer. The system computer recognizes the signal duration, receives card identifying signals; determines the card identity associated with the signal, and determines the location of the card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.