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(12) United States Patent ao) Patent No.: Us 7,047,338 Bi

Nguyen et al. (45) Date of Patent: May 16,2006

(54) CONFIGURABLE HOT-SWAP COMMUNICATION

(75) Inventors: Khanh Trang Nguyen, Carson, NV (US); James W. Stockdale, Clio, CA (US)

(73) Assignee: IGT, Reno, NV (US)

(*) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 556 days.

(21) Appl. No.: 09/618,365

(22) Filed: Jul. 18, 2000

(51) Int. CT.

G06F13/00 (2006.01)

(52) U.S. CI 710/302; 710/301; 710/303;

710/304; 463/42

(58) Field of Classification Search 710/110,

710/107, 64, 200, 72, 301-304; 463/42, 463/43, 16, 46; 709/200, 223 See application file for complete search history.

(56) References Cited

U.S. PATENT DOCUMENTS

4,516,777 A * 5/1985 Nikora 463/46

5,274,765 A 12/1993 Le Gallo 395/275

5,643,086 A 7/1997 Alcorn et al 463/29

5,741,183 A * 4/1998 Acres et al 463/42

5,761,647 A 6/1998 Boushy 705/10

5,892,974 A * 4/1999 Koizumi et al 710/16

5,909,556 A * 6/1999 Morriss et al 710/100

6,104,815 A 8/2000 Alcorn et al 380/251

6,106,396 A 8/2000 Alcorn et al 463/29

6,149,522 A 11/2000 Alcorn et al 463/29

6,178,474 Bl * 1/2001 Hamano et al 710/303

6,295,566 Bl * 9/2001 Stufflebeam 710/302

6,338,105 Bl * 1/2002 Niizuma et al 710/72

6,346,045 Bl * 2/2002 Rider et al 463/31

6,587,909 Bl* 7/2003 Olarig et al 710/302

6,805,634 Bl * 10/2004 Wells et al 463/42

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A disclosed communication interface for a gaming machine has a main communication board with one or more standard receptor slots for a plurality of "daughter boards," each daughter board allowing communication between a master gaming controller and a gaming device or between a master gaming controller and a gaming machine network. The daughter boards may be designed to convert between a number of different communication standards or communication formats. Further, the daughter boards may employ a standard connector that allows the daughter board to be plugged into any of the standard receptor slots on the main communication board. Daughter boards may be removed or installed on the main communication board while the main communication board is receiving power. Further, the main communication board with a plurality of standard receptor slots may accommodate many different types of daughter boards and many different combinations of these types of daughter boards.

10 Claims, 5 Drawing Sheets

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