International Game Technology

Data Flow Technologies, Inc.

Gametech International, Inc.

David W Loar

Forrest James Brown

Kenneth D'Alessandro

Ronald E Kunzel

Roy E Adams

Don C Stephan

Michael Hartman

Hilary Keeton, Legal Representative

Dennis W Hoorn

Charles V Pownell

Brett N Keeton, Deceased

A method for detecting encoded digital data from a substantially sinusoidal waveform, the encoded digital data having one of a first value and a second value at selected phase angles &#x3b8;comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range &#x394;&#x3b8; beginning at each phase angle &#x3b8;, said first function being Y=sin &#x3b8;; generating the waveform having an amplitude Y defined by the first function at phase angles lying inside the regions having a range of &#x394;&#x3b8; beginning at each phase angle &#x3b8;where data of the first value is to be encoded; and generating the waveform having an amplitude Y defined by a second function at phase angles lying inside the regions having a range of &#x394;&#x3b8; associated with each phase angle &#x3b8;where data of the second value is to be encoded, the second function being different from Y=sin &#x3b8;, the detection including deriving sync pulses from minima and maxima of the substantially sinusoidal waveform to frame data words.

Single and multiple sinewave modulation and demodulation techniques employing carrier-zero and carrier-peak data-word start and stop

A method for generating a substantially sinusoidal waveform containing encoded digital data having one of a first value and a second value at selected phase angles &#x3b8;comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range &#x394;&#x3b8; beginning at each phase angle &#x3b8;, said first function being Y=sin &#x3b8;; generating the waveform having an amplitude Y defined by the first function at phase angles lying inside the regions having a range of &#x394;&#x3b8; beginning at each phase angle &#x3b8;where data of the first value is to be encoded; and generating the waveform having an amplitude Y defined by a second function at phase angles lying inside the regions having a range of &#x394;&#x3b8; associated with each phase angle &#x3b8;where data of the second value is to be encoded, the second function being different from Y=sin &#x3b8;.

Wire communications systems and methods employing single and multiple sinewave modulation and demodulation techniques

A method of administering a game in a wireless embodiment utilizing multiple transmitters connected to a game server and base station controller is disclosed. The method comprises generating game state data describing game state in a bingo game; passing the game state data to each transmitter in a plurality of transmitters; and transmitting from transmitters in the plurality in sequence the game state signal to a wireless receiver, wherein the game state data are transmitted repeatedly.

Method and apparatus for RF transmitter layout in a gaming hall

Disclosed is a method and apparatus for activating a gaming machine. The invention includes generating a visible light column at a light generating end when the gaming machine is in a ready state. The invention further includes receiving the visible light column at an a light intensity determining circuit. The light intensity determining circuit being configured to monitor disturbances along the visible light column. Then, activating the gaming machine when the light intensity received at the light intensity circuit moves beyond a predetermined level while in the ready state.

Gaming machine light handle and associated circuitry

An antenna for a wireless network is disclosed. The network includes multiple gaming machines such as slot machines or video poker machines located in an establishment. These machines communicate certain playing data (coin-in, coin-out data, etc.) to a central computer over the wireless network. Antennas for the gaming machines are located in a conventional candle on top of the gaming machine. Such candles typically contain one or more lights which when illuminated indicate a certain event such as a jackpot being hit. The disclosed antenna is unobtrusively located within a conventional candle structure so that from its exterior, a candle antenna appears to be a normal candle of the type typically used on gaming machines. However, interior to the candle antenna is an antenna capable of sending and receiving signals of a particular radio frequency band.

Growing community of inventors

Reno, NV, United States of America

David W Loar