Wms Gaming, Inc.

Ncr Corporation

Ranjan Dasgupta

Mark J Saletnik

Craig Joe Sylla

Vernon W Hamlin

Jorge Luis Shimabukuro

Srinivyasa Murthy Adiraju

Michael R Bytnar

Steven J Lee

An electronic gaming machine (EGM) may use a temporary network to perform configuration updates upon determining that a maintenance mode is active and that normal gaming operation is suspended. The temporary network may use cryptographically paired wireless devices that prevent man-in-the-middle attacks or eavesdropping. Alternatively, the temporary network may use an existing network that is utilized during normal gaming operation for accessories and/or loyalty data. Once the temporary, or ad hoc, network is established, a host electronic gaming machine or a standalone device may be used as a repository from which configuration information may be propagated to other electronic gaming machines, even if the other electronic gaming machines have a different games or configurations from that of the host. This capability may be particularly helpful in jurisdictions where EGM networking is prohibited during game play operation.

Electronic gaming machine configuration using an impromptu configuration channel

This document discusses, among other things, systems and methods for managing the contents of NVRAM in a wagering game machine. A method copies a first data of an NVRAM module to a storage device, wherein the NVRAM module is associated with a wagering game machine and then copies a second data to the NVRAM module.

Reorganizing a wagering game machine's NVRAM

Systems and methods include determining a hardware configuration in accordance with the detection of the presence or absence of hardware modules on a wagering game machine. Various services are selected base on the hardware configuration, where the service selected provides an interface to a wagering game. The services provide an abstraction of various functions provided by various hardware platforms upon which the wagering game may execute, and take into account differences in the platforms.

Wagering game machine providing a write once run anywhere environment

Systems and methods are used to manage the contents of NVRAM in a wagering game machine. NVRAM may be pre-allocated for various purposes prior to loading a first wagering game on a the wagering game machine. A second wagering may be loaded on the wagering game machine. The second wagering game reuses the pre-allocated NVRAM portions for the same purposes as the first wagering game.

NVRAM management in a wagering game machine

An illustrative method provides security of software resident on electronic gaming machines (EGMs) that permit wagering on games. A determination is made if all software files stored on a partition of a nonvolatile storage device resident in an EGM are authenticated image type files prior to any attempt to execute any of the software files. Further processing by the EGM of all of the software files is terminated upon the determination that one of the software files is not an authenticated image type file.

Electronic gaming machine security for software stored in nonvolatile media

Systems and methods provide for the selective backup and rollback of software, firmware and data components of a wagering game machine.

Wagering game machine upgrade and rollback

This document discusses, among other things, systems and methods for managing security for network-based gaming. A method and system download and install an image of wagering game content on a wagering game machine, wherein the wagering game machine is capable of receiving a wager input from a player. The image is validated and may be transformed to a virtual storage device, such that it appears to be a physical storage device. The files may be accessed and validated in a similar manner as if they were stored on a physical storage device. In some cases, the same image format for content in an image is the same as if the content was stored on a physical storage device.

Managing security for network-based gaming

This disclosure describes embodiments of a wagering game machine that includes a wager gaming operating system including downloadable components. This disclosure also describes methods for downloading such components. In one embodiment, the method includes booting the wagering game machine for operation, wherein the booting is performed in-part by core operating system components. The method can also include downloading, over a network, a non-core operating system component, wherein the downloading is performed with assistance from the core operating system components. The method can also include installing the non-core operating system component on the wagering game machine, wherein the installing is performed by the core operating system components. The method can also include presenting a wagering game upon which monetary value can be wagered, wherein the presenting is performed in-part by the non-core operating system component.

Downloadable operating system for wager gaming systems

A datagram messaging service for a distributed lock manager implemented on a clustered computer system including a plurality of processing nodes interconnected through a network. The messaging service establishes and maintains a plurality of virtual circuits between the processing nodes, a single virtual circuit connecting each pair of processing nodes within the clustered computer system. A distributed lock manager driver is included within each processing node, the driver including a communication service providing for the generation of datagrams comprising lock manager instructions for transmission to other processing nodes within the clustered computer system via said virtual circuits and also providing for the receipt of datagrams generated and transmitted by the other processing nodes.

Reliable datagram service provider for fast messaging in a clustered

A method for redistributing the mastership of system resources among the processing nodes within the clustered computer system following a change in the system configuration, such as the failure of a processing node or the return to service of a failed processing node. The method includes the steps of: maintaining a set of hash buckets within each processing node; assigning each one of the resources to one of the hash buckets; and assigning a hash vector, determined through utilization of an N-way recursive algorithm, to each one of the hash buckets, each one of the hash vectors identifying the processing nodes within the clustered computer system in a predetermined sequence unique to the one of the hash buckets. Mastership of any system resource resides with the first processing node identified by the hash vector assigned to the hash bucket to which the system resource is assigned. Following the failure of a processing node, the method reassigns mastership of the system resources assigned to the set of hash buckets associated with a failed processing node the next processing node having an active state identified by the hash vector assigned to the set of hash buckets associated with the failed processing node. Mastership of the resources initially assigned to the set of hash buckets associated with the failed node is reassigned to the failed node upon return of the failed node to an active state.

Growing community of inventors

Naperville, IL, United States of America

Ranjan Dasgupta