Device identification

• US 8,118,677 B2
• Filed: 12/23/2005
• Issued: 02/21/2012
• Est. Priority Date: 09/07/2005
• Status: Expired due to Fees

• Current Assignee: Sg Gaming, Inc. (Scientific Games Corporation)
• Original Assignee: Bally Gaming International Incorporated (Scientific Games Corporation)
• Inventors: Robb, Harold K.
• Primary Examiner(s): Lewis, David L
• Assistant Examiner(s): Thomas, Eric M
• Application Number:
  US11/319,034
• Publication Number:
  US 20070055753A1
• Time in Patent Office: 2,251 Days
• Field of Search: 463 40- 42, 463 16- 20, 370/389, 370/400, 370/401
• US Class Current: 463/42
• CPC Class Codes: A63F 13/30 Interconnection arrangements between game servers and game devices; Interconnection arrangements between game devices; Interconnection arrangements between game servers
• CPC Class Codes: G07F 17/32 for games, toys, sports, or amusements
• CPC Class Codes: G07F 17/3223 Architectural aspects of a gaming system, e.g. internal configuration, master/slave, wireless communication

Abstract

The system provides the capability of identifying the presence and location of network devices. During start-up, a device sends its MAC address out on the network. A local switch collects MAC and IP addresses for the devices connected to it. Periodically, the switch transmits raw Ethernet frames, USB packets, or TCP packets containing tables of devices and associated MAC/IP addresses. When a device receives information about another device, the device may attempt communication with that device. First, a verification procedure is used to validate the devices. Subsequently, communication is possible between the devices.

Claims

1. A method for identifying a first in-cabinet gaming device on a gaming network, the method comprising:

providing a plurality of gaming devices connected to the network, wherein each gaming device includes a plurality of in-cabinet devices that communicate with each other;

transmitting a MAC/IP address of the first in-cabinet gaming device within a first gaming machine during an initialization procedure;

detecting the transmission at a switch and creating a table of the MAC/IP address of the first in-cabinet gaming device;

periodically transmitting the table from the switch to the gaming network;

receiving the MAC/IP address of a second in-cabinet gaming device within the first gaming machine at the first in-cabinet gaming device; and

initiating a verification procedure between the first in-cabinet gaming device and the second in-cabinet gaming device to permit communication between the in-cabinet gaming devices;

wherein the gaming network maps an association between an IP address, a device MAC address, and a unique device identifier (DID), and wherein the gaming network treats any alteration of the IP/MAC/DID association as an intrusion attempt;

wherein the in-cabinet gaming devices are made aware of each other'"'"'s presence through MAC/IP transmissions, and wherein the gaming method enables use of a single network port for each in-cabinet device to communicate with each other and with a back-end system;

wherein the in-cabinet gaming devices do not require pre-knowledge of the MAC/IP addresses of other devices, since the in-cabinet gaming devices can learn the MAC/IP addresses of other devices both at start up and during run-time, thereby enabling new in-cabinet gaming devices to be added to a game cabinet where the new devices are integrated and identified.

2. The method of claim 1 wherein the switch transmits the table in an Ethernet frame.

3. The method of claim 1 wherein the verification procedure comprises Internet Key Exchange (IKE) protocol phase I.

4. The method of claim 1 wherein the verification procedure comprises Internet Key Exchange IKE protocol phase II.

5. The method of claim 1 wherein the verification procedure comprises reading an identification number of a component of the first gaming device and verifying that the identification number is valid.

6. The method of claim 1 wherein the switch is a Mastercom switch.

7. A method of identifying in-cabinet gaming devices on a gaming network, the method comprising:

providing a plurality of gaming devices connected to the network, wherein each gaming device includes a plurality of in-cabinet devices that enable communication with each other;

causing each gaming device to transmit its MAC address on the gaming network and collecting the MAC addresses for each in-cabinet gaming device in a table at a switch;

periodically transmitting the table to the gaming devices;

initiating an identification process from a first in-cabinet gaming device to a second in-cabinet gaming device, wherein the first and second in-cabinet gaming devices are disposed in the same gaming machine, and wherein the identification process enables the in-cabinet devices to identify themselves to each other;

executing a verification process between the first and second in-cabinet gaming devices; and

permitting communication between the first and second in-cabinet gaming devices if the verification process is successful, wherein the gaming network maps an association between an IP address, a device MAC address, and a unique device identifier (DID), and wherein the gaming network treats any alteration of the IP/MAC/DID association as an intrusion attempt;

wherein the in-cabinet gaming devices are made aware of each other'"'"'s presence through MAC/IP transmissions, and wherein the gaming method enables use of a single network port for each in-cabinet device to communicate with each other and with a back-end system;

wherein the in-cabinet gaming devices do not require pre-knowledge of the MAC/IP addresses of other devices, since the in-cabinet gaming devices can learn the MAC/IP addresses of other devices both at start up and during run-time, thereby enabling new in-cabinet gaming devices to be added to a game cabinet where the new devices are integrated and identified.

8. The method of claim 7 wherein the transmission of the table is accomplished in an Ethernet frame.

9. The method of claim 7 wherein the verification procedure comprises Internet Key Exchange (IKE) protocol phase I.

10. The method of claim 7 wherein the verification procedure comprises Internet Key Exchange IKE protocol phase II.

11. The method of claim 7 wherein the verification procedure comprises reading an identification number of a component of the first gaming device and verifying that the identification number is valid.

12. The method of claim 7 wherein the switch is a Mastercom switch.

13. The method of claim 7 wherein the table is rebroadcast over the gaming network.

14. A method of identifying a first and second in-cabinet gaming device on a gaming network, the method comprising:

providing a plurality of gaming devices connected to the network, wherein each gaming device includes a plurality of in-cabinet devices configured to communicate with each other;

causing the first in-cabinet gaming device to send identifying information on the gaming network;

causing the second in-cabinet gaming device to send identifying information on the gaming network to the first in-cabinet gaming device, wherein the first and second in-cabinet gaming devices are located in the same gaming machine, and wherein the sending of the identifying information enables the in-cabinet devices to identify themselves to each other; and

collecting the identifying information in a table at a switch in the gaming network, wherein the gaming network maps an association between an IP address, a device MAC address, and a unique device identifier (DID), and wherein the gaming network treats any alteration of the IP/MAC/DID association as an intrusion attempt;

wherein the in-cabinet gaming devices are made aware of each other'"'"'s presence through MAC/IP transmissions, and wherein the gaming method enables use of a single network port for each in-cabinet device to communicate with each other and with a back-end system;

wherein the in-cabinet gaming devices do not require pre-knowledge of the MAC/IP addresses of other devices, since the in-cabinet gaming devices can learn the MAC/IP addresses of other devices both at start up and during run-time, thereby enabling new in-cabinet gaming devices to be added to a game cabinet where the new devices are integrated and identified.

15. The method of claim 14 further including transmitting the table periodically on the network.

16. The method of claim 15 wherein the identifying information is used to generate address information.

17. The method of claim 16 wherein the identifying information is a MAC address.

18. The method of claim 17 wherein the MAC address is associated with an IP address in the table.

19. The method of claim 14 further comprising:

verifying the first gaming device and the second gaming device.

20. The method of claim 19 further comprising:

permitting communication between the first gaming device and the second gaming device when the verifying is successful.