Patent ID: 6968405
Filing Date: 2005-11-22
Classification: G07F

Abstract:
1. A method of providing virtual device services for computerised gaming machines, said method further comprising the steps of: a. providing a central processing unit (CPU), a packet switching processor (PSP) port, and a data communications bus; b. further providing an internal communications protocol, said protocol comprising a plurality of message transfer frames; c. abstracting peripheral hardware functions; d. grouping said abstracted functions into a virtual device type; e. defining said virtual-device types; f. defining commands for said virtual device-types; g. including said commands in said message transfer frames; and h. monitoring elapsed time between communication of bytes within said frames via said PSP port; i. monitoring elapsed time between communication of said frames via said PSP port; j. delaying transmission of said frames if elapsed time is less than a predetermined interframe parameter.