Abstract: An NDIR gas sensor takes advantage of a conventional packaging embodiment commonly used to house detectors of all kinds comprising a can, header and a dish sample chamber all welded together to form a single detector unit. The can forms the top, a hollowed out header body forms the middle and a custom dish sample chamber forms the bottom of a completely functioning NDIR gas sensor. Whereas the header body not only accommodates all the optoelectronic and optical parts on its top surface providing the required signal processing functions for the gas sensor, part of its body is excavated below to accommodate a custom dish sample chamber in communication with the gas outside whose concentration level is to be measured. A lens and windows are also fabricated on the top part of this header body so that infrared radiation can enter the dish sample chamber below and then be redirected back above for signal processing.

Abstract: A method for calibrating a dual-beam NDIR gas sensor for detecting water vapor by obtaining a variant sensor components domain (“G0”) when there is no water vapor gas in the sample chamber, obtaining a physics measurement domain (“G”) for a set of known concentrations of the water vapor gas in the sample chamber, the known concentrations being measurable quantities exceeding zero, using G to calculate a G0i from a known concentration of water vapor in the sample chamber for each of multiple master calibration curves, and then selecting the master calibration curve with the lowest difference between its G0i and the G0 of the NDIR gas sensor as the calibration curve.

Abstract: An NDIR gas sensor methodology for the design of a dual-gas sensor for the detection of two gases having a mutually interfering infrared absorption band such as that for CO2 and H2O at around 2.70? or N2O and CO at around 4.40?. The output of this two-channel NDIR gas sensor remains drift-free over time and is also temperature independent because it uses three detection channels sharing the same sample chamber and all have exactly the same narrow band-pass filter. The first detection channel is filled with 100% nitrogen and its output is proportional to the concentration levels for both CO2 and H2O in the sample chamber. The second detection channel has two cells in series, one filled with a known concentration of H2O and another one with 100% CO2 gas, and its output is proportional principally only to the presence of H2O in the sample chamber. The third detection channel is filled with 100% CO2 gas and its output serves as the biased reference for this dual-gas NDIR gas sensor.

Abstract: An NDIR gas sensor and methodology use an absorption bias between signal and reference outputs to determine sample concentration of a gas being measured. The absorption bias is created by using a signal channel in a sample chamber with a signal path length that is greater than a reference path length of a reference channel in the sample chamber while both the signal and reference detectors have an identical narrow band pass filter with the same Center Wavelength (“CWL”), Full Width Half Maximum (FWHM) and transmittance efficiency at the CWL. Performance is improved when the reference detector and the signal detector share a common thermal platform that can also be shared by the sample chamber and the infrared source.

Abstract: An NDIR gas sensor takes advantage of a conventional packaging embodiment commonly used to house detectors of all kinds comprising a can, header and a dish sample chamber all welded together to form a single detector unit. The can forms the top, a hollowed out header body forms the middle and a custom dish sample chamber forms the bottom of a completely functioning NDIR gas sensor. Whereas the header body not only accommodates all the optoelectronic and optical parts on its top surface providing the required signal processing functions for the gas sensor, part of its body is excavated below to accommodate a custom dish sample chamber in communication with the gas outside whose concentration level is to be measured. A lens and windows are also fabricated on the top part of this header body so that infrared radiation can enter the dish sample chamber below and then be redirected back above for signal processing.

Abstract: Two detector elements are optically isolated by having them mounted (die-attached) on the same header so that the thermal tracking of the detectors respectively for the signal and reference channels is close to ideal. Furthermore, such an optical isolation technique or cross-interference suppression between the two detector elements mounted on the same header also allows the use of only one and the same narrow band pass interference filter covering both detectors. Thus the thermal tracking of the filters respectively for the signal and reference channels is also close to perfection as both channels share the same filter.

Abstract: A system for detecting engine fluid constituents includes an engine having a sample channel having a conduit for a working engine fluid. The system includes an electromagnetic (EM) source that emits EM radiation through a first metal tube, where the EM radiation is EM energy at a wavelength of interest. The system further includes an EM detector that receives a remainder radiation through a second metal tube, the remainder radiation including the remaining EM radiation after passing through the sample channel. The system includes a controller that determines a composition indicator signal representative of an amount of a constituent in the working engine fluid in response to a strength of the remainder radiation, and determines a concentration of a component of interest according to the composition indicator signal.

Abstract: Two detector elements are optically isolated by having them mounted (die-attached) on the same header so that the thermal tracking of the detectors respectively for the signal and reference channels is close to ideal. Furthermore, such an optical isolation technique or cross-interference suppression between the two detector elements mounted on the same header also allows the use of only one and the same narrow band pass interference filter covering both detectors. Thus the thermal tracking of the filters respectively for the signal and reference channels is also close to perfection as both channels share the same filter.

Abstract: An NDIR gas sensor is housed within a mechanical housing made up of a can and a header housing. The header housing body contains a tunnel waveguide sample chamber. The header housing also has a top surface with a pair of windows formed in it and a signal detector, a reference detector, a MEMS source and a signal processor mounted to it. The can has inner reflective surfaces and the reference detector and the signal detector are affixed to the top surface so that the inner reflective surfaces of the can and the tunnel waveguide sample chamber create a signal channel path length detected by the signal detector that is greater than a reference channel path length detected by the reference detector and an absorption bias between the signal and reference outputs can be used to determine a gas concentration in the sample chamber.

Abstract: A sporting game in which a game ball that behaves differently from a conventional soccer ball is kicked from a starting point toward an end point for the purpose of getting the game ball in the end point in as few as strikes as possible and, if this is not accomplished in one kick, then the game ball is kicked one or more additional times until it is in the end point. However, unlike the direction of travel for a conventional ball, the game ball's direction of travel is to the right when a counterclockwise spin is applied at a point of contact with the player's foot, to the left when a clockwise spin is applied at the point of contact, and straight when a top spin is applied at the point of contact.

Abstract: NDIR gas sensing methodology is advanced which renders the output of an NDIR gas sensor, when implemented with this new methodology, to remain stable or drift-free over time. Furthermore, the output of such a sensor will also be independent of the temperature of an environ wherein the sensor is in physical contact. This method utilizes the same narrow band-pass spectral filter for the detection of the gas of interest for both the signal and the reference channels. By so doing, the two channels always receive radiation of the same spectral content from the infrared source of the sensor convoluted with that from any external elements exposed to the sensor. While the same sample chamber through which the gas of interest to be detected flows is shared by the two channels, the detector package for the reference channel is hermetically sealed with 100% of the gas to be detected instead of 100% N2 as for the signal detector.

Abstract: A method includes flowing gases including combustion byproducts past an exposed face of an optical element in an engine fluid conduit, and depositing debris on the exposed face of the optical element. The debris may be soot, unburned hydrocarbons, sulfates, and/or a reductant precipitate. The method further includes passing electromagnetic (EM) radiation through the optical element and the flowing gases and interrogating the EM radiation after passing through the optical element and the flowing gases to determine an amount of debris accumulated on the exposed face of the optical element. The method further includes heating a resistive wire thermally coupled to the optical element sufficiently to remove accumulated debris from the exposed face in response to the amount of debris exceeding a threshold.

Abstract: An East-West casino offers two or more gambling games in which one is a poker game using a traditional Western deck of cards and another is a poker game based upon a new Chinese Poker Deck of cards.

Abstract: An NDIR gas sensor and methodology use an absorption bias between signal and reference outputs to determine sample concentration of a gas being measured. The absorption bias is created by using a signal channel in a sample chamber with a signal path length that is greater than a reference path length of a reference channel in the sample chamber while both the signal and reference detectors have an identical narrow band pass filter with the same Center Wavelength (“CWL”), Full Width Half Maximum (FWHM) and transmittance efficiency at the CWL. Performance is improved when the reference detector and the signal detector share a common thermal platform that can also be shared by the sample chamber and the infrared source.

Abstract: A card game with similarity to mahjongg is played by two to four players with a deck of 52 cards containing five wild cards, three suits with nine numbers in sequence and five groups of four identical cards in which a series of hands are played in which each player progressively takes a turn starting as the dealer and each hand is scored to come up with a total score and the total scores for all the hands in the series of hands are added up for settlement. Each hand is begun by dealing each player seven cards and using the remainder of the deck as a draw pile. A drawing player (other than the dealer whose discard starts a discard pile) takes one of three steps. First, if the drawing player has four of the same cards, the player can declare a gong operation, draw another card, and then proceed again with another gong operation or one of the following two steps.

Abstract: NDIR gas sensing methodology is advanced which renders the output of an NDIR gas sensor, when implemented with this new methodology, to remain stable or drift-free over time. Furthermore, the output of such a sensor will also be independent of the temperature of an environ wherein the sensor is in physical contact. This method utilizes the same narrow band-pass spectral filter for the detection of the gas of interest for both the signal and the reference channels. By so doing, the two channels always receive radiation of the same spectral content from the infrared source of the sensor convoluted with that from any external elements exposed to the sensor. While the same sample chamber through which the gas of interest to be detected flows is shared by the two channels, the detector package for the reference channel is hermetically sealed with 100% of the gas to be detected instead of 100% N2 as for the signal detector.

Abstract: An East-West casino offers two or more gambling games in which at least one game involves a Feng Shui element of chance and the other involves either a game based upon a new Chinese Poker Deck of cards or a video slot machine having a carousel in which two or more wheels rotate in opposite directions and a random event associated with the two or more wheels is used in connection with a payout or bonus round of the video slot machine. The game involving a Feng Shui element of chance can be a Yin-Yang roulette game or a video slot machine or a Feng Shui keno machine while a game based upon the Chinese Poker Deck may be a poker game and the casino itself may be a website. The video slot machine can use a carousel in which two or more wheels rotating in opposite directions.

Abstract: A ball having an inflatable ball shell within which is found an inflatable inner ball partially filled with an inner ball gas and partially filled with a liquid that is held in the center of the inflatable ball shell by an inflatable support when the inflatable inner ball, the inflatable ball shell and the inflatable support are inflated. The ball exhibits an eccentric and unpredictable motion unless a concomitant spin is appropriately applied to it and the motion of the ball is primarily determined by movement of the liquid within the inflatable inner ball. The inflatable support can be a donut-shaped chamber having an inner radius which is substantially the same as, and may be attached to, an outer radius of the inflatable inner ball. Alternatively, the inflatable support can be three or more elastic spherical shells attached to the inflatable inner ball.

Abstract: A method for implementing an anonymous face to face or Mail Order Telephone Order credit card transaction by a user who has established a user account associated with a fictitious name. The user generates a valid personal charge number by executing an algorithm in a computer affixed to the electronic credit card that uses a user key and a card number as input variables. A merchant is provided with the valid personal charge number and the fictitious name that is submitted for approval to a credit approval center. The electronic credit card is sized such that a standard magnetic stripe reader can read it.

Abstract: A method of playing a community card poker game in which two down cards are dealt to each player from a deck having suited cards, non-suited cards and a wild cards, followed by a betting round, then three community cards are dealt face up followed by a betting round, then a fourth community card is dealt face up followed by a betting round and a final card is then dealt followed by a final betting round, a winning hand is then declared and wagers are settled. The winning hand can only contain one wild card and if a player cannot make a hand with only one wild card (because the player has too many wild cards), the player's hand is declared a losing hand. A betting variation is that a losing calling party pays a penalty in some circumstances based upon the ranking of the winning hand.