Systems and methods for distributed gaming voucher control

1. An input/output (I/O) device comprising:

a communication interface communicatively coupled to a gaming machine;

a memory area; and

a processor coupled to said communication interface and said memory area, said processor configured to:

generate a code based at least in part on a unique machine identifier of said I/O device;

store the code in said memory area;

receive a verification request of the code from another I/O device via said communication interface; and

transmit a response message to the other I/O device via said communication interface, wherein the response includes a number of available credits available to a player at the other I/O device.

2. An I/O device in accordance with claim 1 , wherein said processor is further configured to generate the code at a conclusion of a play session by the player at the gaming machine.

3. An I/O device in accordance with claim 1 , wherein said memory area is further configured to store a plurality of unique voucher identifiers, said processor is further configured to:

parse the verification request to determine an identifier associated with a voucher being verified;

compare the identifier to the plurality of voucher identifiers; and

determine from said memory area the number of credits available if the identifier matches one of the plurality of voucher identifiers.

4. An I/O device in accordance with claim 3 , wherein said processor is further configured to generate a response message that indicates which of the available credits cannot currently be used.

5. An I/O device in accordance with claim 3 , wherein said processor is further configured to generate a credit denial response message if the identifier does not match any of the plurality of voucher identifiers.

6. An I/O device in accordance with claim 5 , wherein said I/O device is configured to at least one of write the code on a tangible medium and read the code from the tangible medium.

7. An I/O device in accordance with claim 1 , further comprising one of a printer, a bill validator, a bar code scanner, and a radio frequency identification (RFID) reader.

8. An I/O device in accordance with claim 1 , wherein the code based at least in part on a unique machine identifier is based on at least one of a unique serial number, an IP address, and a MAC address.

9. An I/O device in accordance with claim 1 , wherein the code based at least in part on a unique machine identifier is further based at least in part on a unique voucher identifier.

10. An I/O device in accordance with claim 1 , wherein the code based at least in part on a unique machine identifier of said I/O device is further based on at least one of value data, a unique player identifier, a player tracking number, date and time when a voucher was printed, and a valid date and time for use of credits associated with the code.

11. An I/O device in accordance with claim 1 , wherein said processor is further configured to encrypt the code.

12. An I/O device in accordance with claim 1 , wherein said processor is further configured to transmit a response message to the gaming machine via said communication interface, wherein the response message includes an indication that the available credits may be used within a specified time period.

13. An I/O device in accordance with claim 1 , wherein said processor is further configured to transmit a response message to the gaming machine via said communication interface, wherein the response message includes an indication that the player is eligible to use the available credits at the gaming machine.

14. An I/O device in accordance with claim 1 , wherein the communication interface comprises a network interface.

15. An I/O device in accordance with claim 14 , wherein the code is a first code, the I/O device is a first I/O device, the response message is a first response message, the validation request is a first validation request, the user is a first user, the number of credits is a first number of credits, said processor is further configured to:

read a second code from a tangible medium;

parse the second code to determine a second machine identifier, said second machine identifier being associated with a second I/O device;

transmit a second validation request to said second I/O device via said network interface;

receive a second response message directly from said second I/O device, wherein the second response message indicates a second number of credits available to a second user at said second I/O device.

16. An I/O device in accordance with claim 15 , wherein said processor is further configured to decrypt said second code.

17. An I/O device in accordance with claim 15 , wherein said processor is further configured to encrypt said second validation request.