IP Library Granted Patent US 8,118,677
Granted Patent B2
US 8,118,677 · App. 11/319,034 · Granted Feb 21, 2012

Device identification

Assignee: Bally Gaming International, Inc.
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Quick Facts
Patent No.
US 8,118,677
App. No.
11/319,034
Granted
Feb 21, 2012
Kind
B2
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 (43)

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.

Assignments (8)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE APPLICATION NUMBER PREVIOUSLY RECORDED AT REEL: 051642 FRAME: 0164. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 21, 2023
From: BALLY GAMING, INC.
To: SG GAMING, INC.
Reel/Frame 063460/0211 →
CHANGE OF NAME Recorded Jan 18, 2020
From: BALLY GAMING, INC.
To: SG GAMING, INC.
Reel/Frame 051642/0164 →
SECURITY AGREEMENT Recorded Apr 11, 2018
From: SCIENTIFIC GAMES INTERNATIONAL, INC.; BALLY GAMING, INC.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT
Reel/Frame 045909/0513 →
SECURITY AGREEMENT Recorded Dec 15, 2017
From: SCIENTIFIC GAMES INTERNATIONAL, INC.; BALLY GAMING, INC.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT
Reel/Frame 044889/0662 →
MERGER AND CHANGE OF NAME Recorded May 24, 2017
From: BALLY GAMING INTERNATIONAL, INC.; BALLY GAMING, INC.
To: BALLY GAMING, INC.
Reel/Frame 042490/0875 →
RELEASE OF SECURITY INTEREST Recorded Dec 1, 2014
From: BANK OF AMERICA, N.A.
To: SHFL ENTERTAINMENT, INC; ARCADE PLANET, INC.; BALLY GAMING, INC; BALLY GAMING INTERNATIONAL, INC.; BALLY TECHNOLOGIES, INC.; SIERRA DESIGN GROUP
Reel/Frame 034501/0049 →
AMENDED AND RESTATED PATENT SECURITY AGREEMENT Recorded Nov 30, 2013
From: BALLY GAMING INTERNATIONAL, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 031745/0267 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 29, 2006
From: ROBB, HAROLD K.
To: BALLY GAMING INTERNATIONAL, INC.
Reel/Frame 017384/0890 →
Continuity (2)
Continuation In Part 11220781 · Sep 7, 2005
Related Publication 20070055753A1 · Mar 8, 2007