Abstract: A cashbox having a rectangular cuboid structure, wherein external walls of the cashbox comprise a left box wall (21) and a right box wall (22) arranged oppositely, a front box wall (24) and a rear box wall arranged oppositely, and a top wall (23) and a bottom wall arranged oppositely, wherein slots (26; 27) are respectively provided on two box walls which are of the external walls, arranged oppositely and parallel to an inserting direction of the cashbox, and both ends of each of the slots (26; 27) in the inserting direction are inserting openings.

Abstract: A paper sheet stacking mechanism 50 includes a stacking wheel 52, a roller 54 that is disposed outward from the stacking wheel 52 so as to be coaxially aligned with the stacking wheel 52 and that is rotatable about a shaft 53 at a greater angular velocity than that of the stacking wheel 52, and a transport unit that is configured to transport a paper sheet to the gap between two adjacent vanes 52b of the stacking wheel 52. The transport unit is located such that a discharge position is disposed outward from the outer periphery of the base 52a of the stacking wheel 52 and inward of the circular region defined by the tips of the vanes 52b of the stacking wheel 52 during the rotation of the stacking wheel 52, when viewed in the axial direction of the shaft 53 of the stacking wheel 52.

Abstract: Apparatuses and methods are provided for manufacturing a transaction card. The disclosed apparatuses and methods may be used to form a transaction card frame configured to house a data storage component. The card frame may be formed of a resin mixture comprising a thermoplastic elastomer (TPE). The card frame may also have a Shore D hardness in the range of 20-80.

Abstract: Embodiments of the invention can include systems and methods for dispensing consumable products. In one embodiment, a product dispenser is provided. The product dispenser can include a user interface operable to receive consumer inputs and to present product selection information. In addition, the product dispenser can include a reader configured to obtain identification information associated with a consumer. The product dispenser can include a controller in communication with the reader and user interface, and operable to execute a set of instructions to receive from the reader identification information associated with a consumer. The controller can also be operable to execute a set of instructions operable to retrieve consumer information based at least in part on the identification information, and provide product selection information at the user interface based at least in part on the consumer information.

Abstract: A product speed checking apparatus for attaching to a vibratory conveying system and a method thereof for dispensing product, including a sample pan mounted to capture flow of product between two vibratory conveyors; a first sensor and a second sensor, each placed separately at a predetermined distance from one another and each capable of independently reading product handled by the sample pan; and, a programmable logic controller operatively arranged to calculate an approximate time between the reading of product by the first sensor and the reading of product by the second sensor and computing product speed by dividing distance between two sensors with the travel time between the two sensors.

Abstract: A card dispenser is provided comprising a capture chamber configured to receive a card dispensed from a read position by a card feed mechanism, the capture chamber comprising walls defining an exit aperture for dispensing a card to a user. A capture flap is moveable from a first orientation to a second orientation, wherein in the first orientation the capture flap is arranged to block the exit aperture so as to prevent a card from passing through said exit aperture, and in the second orientation the capture flap is arranged to guide a card through said exit aperture. If a first output is received from a communication module, the capture flap is held at the first orientation such that a card dispensed from a read position moves under the influence of gravity through the capture chamber into a card bin.

Abstract: Embodiments of this concept are direct to a game that includes a combination of an entertainment game and a gambling game. This game combination provides an entertainment game that retains the playability and fun of a skill game or other non-traditional gambling game while allowing for wagers to still be placed and awards won. In some embodiments, the wager-based gambling game is tied directly into the entertainment game, which provides additional entertainment and excitement. Other embodiments separate some of the aspects of the gambling game from the entertainment game to retain the feel of well known gaming devices while still providing an entertainment game to the player.

Abstract: A gaming system includes a wagering game mechanism associating the game-outcome symbol of multiple reels of the wagering game to a unified game-symbol outcome. The wagering game generates an outcome symbol array with independent array elements and one or more associated groups of array elements. The associated groups of array elements are visually coordinated while the reels are spinning. Each associated group of array elements share a common game-outcome symbol based upon reels having a common reel strip for the associated group or a particular game-outcome symbol array element of the associated group. When the reels stop spinning and the wagering game outcome is displayed, the elements of a given associated group share an identical game-outcome symbol.

Abstract: Systems and methods for providing an interactive media based gambling hybrid game. Interactive media is provided to a player with the interactive media having a storyline and a plurality of storyline branches for the storyline. Player interactions with the interactive media are received and a determination is made when a real credit gambling event occurs based on the received player interactions. An outcome of the gambling event is determined and a storyline branch from among the plurality of storyline branches is determined on the basis of the outcome of the gambling event and presented to the player.

Abstract: A wagering game system configured to perform operations to transmit to a mobile device, via a wireless communication device of the gaming system, an offer for presentation via the mobile device in response to detecting that the mobile device is located at a casino. The offer is associated with a wagering game machine within the casino. The operations can further include detecting, via an electronic tracking device associated with the wagering game machine, an electronic identifier provided from the mobile device. For instance, the mobile device can provide the electronic identifier to the wagering game machine. The operations can further include associating, via an electronic processing unit of the gaming system, the offer with the wagering game machine in response to detecting the electronic identifier.

Abstract: Embodiments of the present invention are directed to generating and displaying a score related to the results of wagering by a player on an electronic gaming machine. In one embodiment, a method for generating a score related to play on at least one electronic gaming device includes tracking the amount wagered on the gaming device, tracking the amount awarded by the gaming device, and generating a score related to the tracked amounts.

Abstract: A gambling hybrid game including an entertainment system engine that provides an entertainment game, a real world engine that provides gambling games, and a game world engine that monitors the entertainment game and provides gambling games when appropriate. The entertainment system engine provides an entertainment games that provides values for a set of entertainment game variables. The game world engine uses the results of a gambling event to determine a change to the set of entertainment game variables and provides the change to the entertainment system engine.

Abstract: A gaming machine and method of play providing a minimum award threshold. The machine and method can determine whether a first game outcome corresponds to a predetermined outcome corresponding to a prize and setting a current minimum prize equivalent to the value of the prize. Where a subsequent game outcome corresponds to an outcomes associated with a prize, the value of the prize for the subsequent game outcome can be compared against the current minimum prize. Where the value of the prize for the subsequent game outcome is greater than the current minimum prize, the current minimum prize can be reset to the value of the prize for the subsequent game outcome.

Abstract: The gaming system, gaming device, and gaming method disclosed herein provide an opportunity for a player to place a replay wager for a group or set of a plurality of plays of a wagering game. In one embodiment, the replay wager activates a replay feature which the player can use a designated number of times (such as one time) over the plurality of plays of the wagering game. The player's use of the replay feature causes the gaming system to redisplay the previous play of the wagering game, and provide any awards associated with the previous play of the wagering game. After the player uses the replay feature over each of the designated number (such as one) of the plurality of plays of the wagering game, the player cannot use the replay feature for any of the remaining plays of the plurality of plays of the wagering game.

Abstract: Embodiments of the present invention set forth systems, apparatuses and methods for enhancing gaming experiences using a game wheel. Accordingly, a gaming device can be configured to operate a gaming wheel having a plurality of sections. Each of the sections of the wheel includes a symbol mark and is associated with a section classification. Random selections of game wheel sections are made where selected sections associated with a first classification provide an award associated with the corresponding symbol mark and places a termination indicator in the selected section. Selected sections associated with a second classification clear one or more of the existing termination indicators, if any. Selections continue until a section associated with a termination indicator is selected.

Abstract: A gaming system compatible with patron-controlled portable electronic devices, such as smart phones or tablet computers, is described. The gaming system can include electronic gaming machines that are compatible to receive both virtual ticket vouchers and printed ticket vouchers that are redeemable for credits on the electronic gaming machines. Information associated with a virtual ticket voucher can be stored on a patron-controlled portable electronic device and then can be wireless transmitted to the electronic gaming machines. The electronic gaming machines can be configured to issue virtual ticket vouchers and printed ticket vouchers that can be redeemed for cash or additional game play on another electronic gaming machine. In one embodiment, the electronic gaming machine can be configured to issue a virtual ticket voucher to a patron-controlled portable electronic device.

Abstract: A gaming system and method of rewarding players of electronic gaming machines connected by a network to a host computer, including storing player-useable points at a network-accessible location, enabling a player to convert at least some of the points into monetary units at a conversion rate, wherein the monetary units are convertible into credits for wagering on at least one of the electronic gaming machines, awarding a personal points conversion rate multiplier to a player, and applying the points conversion rate multiplier to the conversion rate.

Abstract: The present invention provides methods, systems and apparatus for promoting game play frequency of online games. Embodiments include displaying a plurality of positioned game elements, wherein each positioned game element is associated with a game time period; displaying a game indicia associated with a positioned game element if a player has acquired a game piece during the game time period associated with the positioned game element; selecting one or more positioned game elements after a game duration; and awarding one or more prizes if the selected positioned game elements are associated with a game indicia. Numerous additional aspects are disclosed.

Abstract: A plurality of variable jackpot tickets having a predefined expected value and a plurality of predetermined non-jackpot winning tickets are provided in a deal of tickets preprinted with game content. A first random number generator using a first prize table selects physical locations in the deal of tickets for the plurality of predetermined non-jackpot winning tickets, and the plurality of variable jackpot tickets. A second random number generator using a second prize table different than the first prize table selects a jackpot prize for each of the plurality of variable jackpot tickets. Some of the jackpot prizes in the second prize table are less than the expected value. The difference between some of the jackpot prizes in the second prize table and the expected value are used to fund one or more jackpot prizes that are greater than the expected value.

Abstract: In a method of wagering, one or more primary bettors place wagers having an applicable base take-out or rake rate, and thus yielding a base payout for winning wagers. One or more secondary bettors may place wagers having an applicable modified take-out or rake rate (preferably lower than the base take-out or rake rate), thus yielding a higher payout for winning wagers than the base payout. The wagering may occur relative to card games such as poker, or other types of games or events, including sports betting. Bets may be placed with a host, such as a casino or track, or through an off-track entity such as an OTB or ADW facility.

Abstract: A gaming machine comprises a terminal device which runs a game, and a storage device which stores a point value generated in games run in the terminal device and a game play count. The gaming machine stores, in a game play count storage area, a total game play count incremented in each game; accumulatively stores a portion of a total point value in a first storage area; accumulatively stores the remaining portion of the total point value in a second storage area of the storage device; adds the point value stored in the first storage area to the point value stored in the second storage area, when the total game play count reaches a certain value; and awards a benefit to the terminal device, when a total point value stored in the second storage area reaches a certain value.

Abstract: A gaming machine and system for conducting a game includes receipt of an ante wager designating either a first game hand or a second game hand for resolution of the ante wager. A first game hand of unexposed playing cards is dealt, and optionally exposed in stages with each stage interceded by an election received from players to either place an additional wager on the same game hand designed by the ante wager or check by proceeding to a subsequent stage without placing an additional wager. After the first game hand is exposed, an election is received to either place an additional wager on the same game hand designated by the ante wager or fold. A second game hand is dealt, exposed, and compared to the first game hand to resolve ante wagers on the respective hands. Optional and/or mandatory bonus wagers may be received on the game hands.

Abstract: The gaming system and method disclosed herein provides that the probability that a group bonus event will be triggered for a plurality of gaming devices in the gaming system is independent of the number of players that are currently playing such gaming devices. The gaming system and method disclosed herein further provides that different players that are wagering different amounts at different rates are provided different quantities of evaluation points such that if a group bonus event is triggered, different players are provided different group bonus event awards proportional to each individual player's wagering activity.

Abstract: The inventions herein relate to novel games of chance and apparatus and methods for their play. In certain embodiments, the existing lottery infrastructure is used in conjunction with electronic remote game play. A player receives a ticket identification number (TIN), optionally via lottery game play, and then plays an electronic game based upon the TIN. The remote system contains information associated with the TIN, for example, identification of which game will be played, and in a predetermined context, whether the player is to win or lose, and if they win, the form of the prize.

Abstract: A hand wager and at least one partial hand wager are received. A player hand is dealt. As the player hand is dealt, the partial hand wager(s) may be resolved based on the partial player hands formed from a subset of the player hand. Specifically, partial player hands are compared to a pay table and a payout, if any, associated with the partial player hand is issued. The hand wager is resolved by comparing the player hand to the pay table. The player hand may be formed using replacement playing cards, community playing cards, or may be formed in any other way, depending on the optional embodiment. In an optional embodiment, a deck may be randomly selected from multiple decks prior to dealing a player hand. If the selected deck is a bonus deck, the pay table may be replaced with a bonus pay table.

Abstract: A gaming machine for providing a skill-based wagering game to a player is described herein. The gaming machine includes a controller programmed to display the skill-based wagering game on a display device, receive a signal indicating a wager being received from the player, and initiate the skill-based wagering game. The controller generates a skill event associated with the skill-based wagering game and randomly selects a skill event record associated with the skill event from a database. The controller receives a player's selection input from a user input device in response to the displayed skill event, determines a player skill level value based on the received player's selection, determines an award value included in the selected skill event record based on the player skill level value; and adjusts the credit balance based on the determined award value.

Abstract: To provide a gaming machine that can provide a new type of game that maintains or improves the interest of a player, and a method and program for providing a game. In the gaming machine 1, by removing symbols of a particular type and moving a following symbol, the ratio of symbols of types other than the particular type becomes higher in the symbol array formed on the display unit 27, and it is easier for the symbol array to configure a winning combination. Because the chance of winning is higher after the particular type of symbol is removed in this manner, it is possible to provide a new type of game where the interest of the player can be maintained or improved after the symbols are removed.

Abstract: The disclosed embodiments include methods and systems for detecting ATM skimmers based upon radio frequency (RF) signal. In one aspect, the disclosed embodiments include a system for detecting ATM skimmers including a memory storing instructions and one or more processors that execute the instructions to perform one or more operations for detecting ATM skimmers. The operations may include, for example, receiving radio frequency (RF) signal data corresponding to one or more RF signals detected by an antenna located within communication range of the ATM. The operations may also include determining one or more unidentified RF signals of the detected ATM RF signals that differ from one or more baseline RF signals.

Abstract: The disclosed embodiments include methods and systems for detecting ATM skimmers, other unauthorized devices, such as hidden video cameras or keypad overlays, and/or possible damage to the ATM based upon radio frequency (RF) signal emitted from the ATM and/or 3D image analysis.

Abstract: A settlement apparatus includes a case body; a coin inserting slot, provided at the case body, which receives a deposited coin; and a concaved shape money placement portion, arranged at the case body, which has a money placement surface on which the deposited coin which is received by the coin inserting slot is temporarily placed at the bottom surface portion thereof, wherein the money placement surface is connected to the coin inserting slot in a width direction of the case body and the money placement portion is located across a center of the case body in the width direction thereof to slide the deposited coin on the money placement surface toward the coin inserting slot.

Abstract: Systems for ensuring an audible alarm circuit sounds at a minimum magnitude of loudness are provided. Different circuitry embodiments discussed herein are each capable of assisting the audible alarm circuit in maintaining a minimum loudness threshold. Audible alarm circuit operation optimization can be achieved using embodiments that fall within anyone of four general categories: compensation networks, direct drive, dynamic tuning, and microphone feedback based dynamic tuning. Use of such circuitry can increase production yields by compensating for manufacturing variations of alarm components and aging characteristics of the components.

Abstract: Systems, methods, and media for projecting light to indicate a device status are provided. In accordance with some implementations of the disclosed subject matter, systems for projecting light to indicate a device status are provided, the systems comprising: a hardware processor that: determines a light status; determines whether to turn a light source on; selects a light format corresponding to the light status; projects light of a light source according to the light format; and determines whether to turn the light source off.

Abstract: Techniques and apparatuses enabling a wearable haptic device for the visually impaired. The techniques enable users to interact with their mobile devices using haptics, both to receive information, such as through haptic projections providing Braille symbols from their devices, and to make selections for their devices, such as through haptic guides. The techniques may also enable users to better move from place to place by providing haptic output indicating objects and impediments to the user of the wearable haptic device.

Abstract: Embodiments of the present invention are directed to security systems for securing an item of merchandise from theft or unauthorized removal. For example, the security system may include a sensor configured to be coupled to the item of merchandise and a base configured to removably support the sensor and the item of merchandise thereon. The base includes a sidewall and a bottom surface, and the sidewall defines an opening. The security system also includes an alarm configured to generate sound in response to a security event. The alarm includes a sound chamber configured to direct sound exiting the sound chamber towards the opening in the sidewall.

Abstract: A method may include receiving a video stream from a camera and displaying the video stream on a display. The method may further include obtaining, via an eye tracking sensor, information identifying a gaze area for a user watching the display; generating a gradient from the gaze area to edges of the display; and instructing the camera to decrease a bit rate of the video stream outside the gaze area based on the generated gradient.

Abstract: Systems (100) and methods (1500) for operating a security tag. The methods involve: converting rotational motion of a pinion gear in a first direction into linear motion of a rack gear in a second direction so as to cause a pin to transition from an unengaged state in which the pin is retracted into a first portion of an enclosure to an engaged state in which an end of the pin resides within an aperture formed in a second portion spaced apart from the first portion of the enclosure; mechanically retaining the pin in the engaged position using a pawl that prevents movement of the pinion gear in a third direction opposed to the first direction; and automatically releasing the pawl in response to a reception of a wireless signal at the security tag, whereby the pin is returns to the unengaged state.

Abstract: Systems (100) and methods (1500, 1600) for operating a Security Tag (“ST”). The methods involve communicating a Wireless Signal (“WS”) to ST (132) tag attached to an article (102) when a successful purchase thereof has been verified. WS includes a detach command. A mechanical component (922) of ST is caused to be released in response to a reception of WS at ST, whereby a pin (308) of ST transitions from an engaged position to an unengaged position without any human assistance or mechanical assistance by a device external to ST. An end (1002) of the pin resides within an aperture (1102) formed in a first portion (312) of an enclosure (302) spaced apart from a second portion (310) of the enclosure by a gap when the pin is in the engaged position. The pin is fully retracted into the second portion when it is in the unengaged position.

Abstract: An electronic article surveillance apparatus for monitoring boxes, crates, and other items having lids is comprised of a base, an electronics housing, and a sealing tape for sealing the lid. The sealing tape is fixed to the base. Adhesive on the base and sealing tape allow them to be fixed to a box. The sealing tape is placed over the edge of the lid. The sealing tape has a conductive loop within it and the ends of the conductive loop terminate on the base. The electronics housing mounts to the base and contacts on the electronics housing contact the ends of the loop to complete a circuit. The electronics within the housing monitor the integrity of the sealing tape. If the sealing tape is torn, the electronics interpret that as an attempt to open the box and remove its contents. The electronics then generate an alarm.

Abstract: A signal-emitting retail display device that includes a wire have a top portion and a bottom portion, the top portion configured to support a label holder, the bottom portion configured to store one or more retail items. The signal-emitting retail display device also has an electronic unit that includes an emitter. The emitter is configured to emit an audible alarm or warning signal, and configured to wirelessly transmit a signal to a remotely-located alarm box indicative of the audible alarm or warning signal. The wire is electrically coupled to the electronic unit such that the wire functions as an antenna for the transmission of the signal to the alarm box.

Abstract: Systems and methods for operating a security tag. The methods comprise: disposing a portion of an article between at least a first pad and a second pad of the security tag; applying a compressive force to the portion of the article disposed between the first and second pads; and concurrently providing by the first and second pads (A) a non-slip grip on the portion of the article and (b) prevention of article staining caused by at least one of oxidization, a chemical interaction, and outgassing.

Abstract: A notification appliance is disclosed. The notification appliance may be a strobe notification appliance, such as an LED strobe notification appliance. The notification appliance may be wall-mounted or ceiling-mounted. Further, the notification appliance may include an optic that is configured to shape the light output from the notification appliance. For example, in a wall-mount, the optic may be mounted off-axis of a plane defined by a back plate of the notification appliance. Further, the notification appliance may be composed of a back plate, a driver board, and a front housing, with the front housing being attached to one or both of the back plate and the driver board. Moreover, the notification appliance may be used with an adapter bracket, which may be used to connect the notification appliance with one or more types of junction boxes.

Abstract: The invention relates to a smoke detection device 1, said smoke detection device 1 being connectable to at least one monitoring camera 2 which is designed to capture images of a monitored area, said monitored area comprising at least one stationary lighting object 3. The smoke detection device comprises an analyzing device 4, said analyzing device 4 being designed to detect at least one smoke detection feature in the monitored area in order to detect smoke in the images. The analyzing device 4 detects the at least one lighting object in the images, and the analyzing device 4 detects a change of a light scattering of the at least one detected lighting object 3 as the at least one smoke detection feature.

Abstract: The method, system, and computer-readable medium facilitates monitoring a vehicle operator during the course of vehicle operation to determine whether the vehicle operator is in an emotionally impaired state (e.g., aggressive or agitated) and presenting appropriate stimuli (e.g., music or sound recordings) to the vehicle operator when impairment is detected. The vehicle operator, the environment surrounding the vehicle, or forces acting on the vehicle may be monitored using a variety of sensors, including optical sensors, accelerometers, or biometric sensors (e.g., skin conductivity, heart rate, or voice modulation). When the vehicle operator is determined to be in an emotionally impaired state, stimuli are selected to improve the emotional state of the vehicle operator. The selection is based on sensor data and data regarding prior responses of the vehicle operator to various stimuli. After selection, the stimuli are presented to the vehicle operator while monitoring continues.

Abstract: Methods, computer systems, and computer-storage medium are provided for managing patient alerts using a mobile device. A mobile device associated with a patient caregiver receives a critical alert related to the patient, and the alert is presented on the mobile device. The alert includes important contextual information that enables the caregiver to make a quick assessment of how to effectively address the alert. The alert includes options for accepting the alert or rejecting the alert. Acceptance of the alert enables the caregiver to communicate the alert to selected caregivers that can assist in managing the alert. Rejecting the alert causes the alert to be automatically communicated to additional caregivers associated with the patient.

Abstract: A bodily tracking assembly for allowing a caregiver to track and individual includes a bracelet that is worn. A tracking unit is coupled to the bracelet and the tracking unit is in electrical communication with a global positioning system thereby facilitating the tracking unit to establish a physical location of the bracelet. The tracking unit is in electrical communication with an electronic device thereby facilitating a caregiver to track a location of the bracelet.

Abstract: A method of data communication with a selected sensor of multiple liquid level detection sensors connected to a central processing unit includes the steps of: a) transmitting by the central processing unit directly or indirectly a communication signal to the selected sensor of the series of multiple sensors, b) upon receipt of the communication signal by the selected sensor, processing the communication signal in the selected sensor. A liquid level detection system, in particular a liquid overfill prevention system for multi compartment liquid tank trucks, includes two or more liquid level detection sensors, preferably arranged in series, and a central processing unit, where at least one of the two or more sensors includes a sensor processing unit comprising a storage unit.

Abstract: One or more embodiments of the disclosure pertain to a protection and diagnostic system that can generate a trip/alarm signal by executing a diagnostic procedure upon a machine that includes a rotating part. The diagnostic procedure can include using sensors to obtain performance parameters of various tagged critical and/or less critical sub-systems of the machine when the rotating part is rotating; determining, in real time, a system performance index of the machine based on the performance parameters; using a protection model to determine a sub-system performance index associated with at least one tagged sub-system of the machine; determining an asset health index based on combining the system performance index and the sub-system performance index; and generating the trip/alarm signal when the asset health index exceeds a threshold value. The protection system can include a protection device configured to receive the trip signal and execute a protective action upon the machine.

Abstract: An information device includes a position detector, a communication unit, and a controller. The position detector detects specific position information indicating at least one of a fact that the information device is positioned at a specific location and a fact that the information device is away from the specific location. When the position detector detects the specific position information, the communication unit communicates with an electronic device and acquires from the electronic device remaining capacity information regarding at least one of a remaining battery capacity and a remaining memory capacity of the electronic device. The controller outputs a notification signal indicating that at least one of the remaining battery capacity and the remaining memory capacity indicated by the remaining capacity information is below a threshold set in advance in a case where at least one of the remaining battery capacity and the remaining memory capacity is below the threshold.

Abstract: Systems and methods for sharing resources between multiple processing streams are described. An example method may comprise: receiving data by an electronic display device attached to an object; determining, by the electronic display device, whether the data satisfies a criterion; responsive to determining that the data satisfies the criterion, generating a first message based on the data; wirelessly transmitting the first message to a computing device that is wirelessly connected to the electronic display device; receiving a second message from the computing device; and displaying at least one of the first message or the second message by the electronic display device.

Abstract: The present disclosure describes methods and apparatus for detecting a pattern warning signal from a hazard detector in the presence of a second pattern warning signal from a second hazard detector. In one embodiment, hazard detector monitoring device converts a pattern warning signal and a second pattern warning signal into a composite electronic signal, each of the first and second pattern warning signals comprising an on-time period followed by an off-time period. Next, the composite electronic signal is converted into a digital signal and then an on-time duration of the digital signal is determined as a time that the digital signal exceeded a first voltage threshold. Finally, an alarm signal is transmitted to a receiver when the pattern warning signal has been determined to be present, based on the on-time duration.