David Colin Williams
Engineers in Carson City, NV

2008021, Sep 4, 2008

May 13, 2008

12/120205

David C. Williams - Carson City NV, US
Richard E. Rowe - Las Vegas NV, US
Binh T. Nguyen - Reno NV, US

IGT - Reno NV

G06F 17/00

463 29

Apparatus and methods for improving security and preventing tampering in a gaming system are described. In particular, the gaming system may comprise an authorization device that is configured to control a download of gaming data, such as an executable image for generating a game of chance, from a first gaming device to a second gaming device. For each download between two different devices, the authorization device may be operable to generate a unique encryption key pair utilized in the download and determine whether the downloaded data is authentic. The gaming device receiving the download of game data may be configured such that it doesn't utilize the game data until an approval is received from the authorization device.

8360847, Jan 29, 2013

Sep 20, 2007

11/858845

David C. Williams - Carson City NV, US
John Leagh Beadell - Sparks NV, US
Joseph Randy Hedrick - Carson City NV, US
Kurt M. Larsen - Reno NV, US
Nicholas B. Mayne - Reno NV, US
Kay D. Vetter - Reno NV, US

IGT - Reno NV

A63F 9/24

463 20, 463 16, 463 17

Gaming machines, systems and methods for providing more realistic emulations of rotating reels are disclosed. Gaming machines include an exterior housing, master gaming controller, display device, speakers and virtual reels. A reel spin timer can be adapted to vary the spin times of the simulated rotating reels from one game play to another, and a reel sound generator can be adapted to provide reel sounds to one or more speakers with respect to the simulated rotating reels. Provided reel sounds can also vary from one game play to another, and both reel spin times and reel sounds can be selected randomly from stored values or files. Stored values or files can include samplings from actual physical reels. A remote host can provide downloadable reel spin times and reel sounds to gaming machines within an associated gaming system.

2014002, Jan 30, 2014

Mar 15, 2013

13/836442

Hans Wain - Truckee CA, US
David Williams - Carson City NV, US

F01K 25/08

60651, 60671

Apparatus, systems and methods are provided for the use of multiple organic Rankine cycle (ORC) systems that generate mechanical and/or electric power from multiple co-located waste heat flows using a specially configured system of multiple expanders operating at multiple temperatures and/or multiple pressures (“MP”) utilizing a common working fluid. The multiple ORC cycle system accepts waste heat energy at different temperatures and utilizes a single closed-loop cycle of organic refrigerant flowing through all expanders in the system, where the distribution of heat energy to each of the expanders allocated to permit utilization of up to all available heat energy, In some embodiments, the multiple ORC system maximizes the output of the waste energy recovery process. The expanders can be operatively coupled to one or more generators that convert the mechanical energy of the expansion process into electrical energy.

8512139, Aug 20, 2013

Nov 9, 2007

11/983770

David C. Williams - Carson City NV, US
Kurt M. Larsen - Reno NV, US
Jae Man Yi - Reno NV, US
Steven G. LeMay - Reno NV, US

IGT - Reno NV

A63F 9/24

463 32, 463 16, 463 17, 463 18, 463 19, 463 20, 463 30, 463 31, 463 33

A gaming system including a number of host devices each coupled to one or more gaming machines, wherein content provided by the host device is output on the gaming machine. To output the content provided by the remote host, a host-controlled process that is authenticated by the gaming machine and executed in a secure memory location such that it is isolated from other processes executing on the gaming machine may be utilized. The host-controlled processes can be executed on a processor-based gaming machine with layered displays. The layered displays may include a front screen and back screen that provide actual physical separation between visual representations on the front and back screens. The downloaded content from a host to a gaming machine with layered displays may be monitored to ensure that content needed for each of the display layers is received prior to instantiating the display of the downloaded content via the host-controlled process.

2008031, Dec 18, 2008

Jun 14, 2007

11/763387

Floyd Goldstein - Grass Valley CA, US
John Goodman - Reno NV, US
Dung Hua - Sparks NV, US
David C. Williams - Carson City NV, US

IGT - Reno NV

G06F 9/00

718102

The invention provides for an automated data collection having an endpoint coupled to at least one gaming machine to collect data from the at least one gaming machine, at least one concentrator in communication with the endpoint via a personal area network to obtain the data from the endpoint, and at least one remote collection server in communication with the at least one concentrator to receive the data from the at least one concentrator, wherein the data is pushed from the endpoint to the at least one remote collection server at predefined time intervals without interrupting game play on the at least one gaming machine.

8414391, Apr 9, 2013

Mar 22, 2010

12/728916

David C. Williams - Carson City NV, US

IGT - Reno NV

A63F 13/00

463 29, 463 24, 463 42

Methods and devices are provided for secure identification and authentication of computing hardware connected to wired or wireless networks, including but not limited to thin clients in server-based systems, mobile gaming devices, etc. Some implementations involve a frequent exchange of information between networked devices. In some implementations the exchange may be so frequent as to be effectively a constant exchange of information, though there may be small time intervals during which no such information is exchanged. Some preferred methods are effective against both external attacks and those benefiting from assistance or information provided by those with administrative access.

2009010, Apr 23, 2009

May 13, 2008

12/120191

Reid M. Weber - Reno NV, US
William C. Little - Las Vegas NV, US
Steven G. LeMay - Reno NV, US
Adrian R. Marcu - Reno NV, US
Nicole M. Beaulieu - Reno NV, US
David A. Gipp - Portland OR, US
Daniel de Waal - Las Vegas NV, US
Vincent S. Manfredi - Henderson NV, US
Bryan Bullard - Las Vegas NV, US
Cara L. Iddings - Henderson NV, US
Brad Robert Steinbach - Las Vegas NV, US
Richard J. Schneider - Las Vegas NV, US
Glenn Keith Russell - Las Vegas NV, US
Jacob Graham - Sparks NV, US
Gregory A. Schlottmann - Sparks NV, US
Richard E. Rowe - Las Vegas NV, US
David C. Williams - Carson City NV, US
Kurt M. Larsen - Reno NV, US
Jae Man Yi - Reno NV, US
Erik B. Petersen - Corvallis OR, US

IGT - Reno NV

A63F 9/24, A63F 13/12

463 1, 463 16, 463 40, 463 31

A method for tracking an event of an externally controlled interface (ECI) is described. The method includes generating the externally controlled interface independent of an outcome of a wager-based game regulated by a regulatory authority, and logging the event of the externally controlled interface.

8210922, Jul 3, 2012

Sep 20, 2007

11/858693

David C. Williams - Carson City NV, US
Joseph R. Hedrick - Reno NV, US
Kurt Larsen - Reno NV, US

IGT - Reno NV

A63F 13/00

463 20, 345 2, 463 31

Described herein is a gaming machine with layered displays and separable graphics that leverage the layered displays to enhance game play on a gaming machine. The separable graphics include separate but related content on each of the display panels for a game. The layered displays include a proximate screen and distal video display device that provide actual physical separation between graphics items output by proximate and distal video display devices. This distance provides parallax, which improves three-dimensional perception of video graphics and games by the gaming machine.

2009010, Apr 23, 2009

Oct 23, 2007

11/877611

David C. Williams - Carson City NV, US
Gregory Silva - Reno NV, US

IGT - Reno NV

A63F 9/24

463 31, 463 46

A gaming machine may have an optical module having a first display screen configured to output a visual image in response to a control signal, and a lighting module having light film on a first surface, a plate on a second surface, and a plurality of light sources positioned in an interior region formed by the light film and plate, wherein the plurality of light sources provide light to the optical module, and wherein the lighting module is removably coupled to the optical module such that the lighting module may be replaced or serviced without disturbing the optical module.

2014003, Feb 6, 2014

Jul 24, 2013

13/949843

Hans Wain - Truckee CA, US
David Williams - Carson City NV, US

ElectraTherm, Inc. - Reno NV

F01K 13/00

60645

Systems and methods are provided for the use of systems that recover mechanical power from waste heat energy using multiple working expanders with a common working fluid. The system accepts waste heat energy at different temperatures and utilizes a single closed-loop circuit of organic refrigerant flowing through all expanders in the system where the distribution of heat energy to each of the expanders allocated to permit utilization of up to all available heat energy. In some embodiments, the system maximizes the output of the waste heat energy recovery process. The expanders can be operatively coupled to one or more generators that convert the mechanical energy of the expansion process into electrical energy.