Abstract: A control system for construction machinery includes a smart key configured to store a plurality of authentication codes and activate any one of the authentication codes, and a plurality of construction machines including a plurality of smart key modules mounted thereon respectively, the smart key modules communicating wirelessly with the smart key and having respective registration authentication codes which match with the authentication codes respectively. The construction machine including the smart key module having the registration authentication code which matches with the activated authentication code is controlled by the smart key.

Abstract: This disclosure provides a highly scalable training data preparation pipeline for data cleaning and augmentation with the aim of extracting the most meaningful information while keeping the noise level low, as well as a highly efficient distributed trainer for the deep neural networks suitable for facial recognition. The goal is to train deeper and larger neural networks with larger and higher quality facial image datasets iteratively and frequently without incurring prohibitive costs and drastic delays.

Abstract: A multiple subcarriers modulator (200) for a backscatter device comprised in a backscatter communication system is disclosed. The multiple subcarriers modulator comprises an antenna switch (210) and an impedance matrix (220) comprising a number of impedances. The multiple subcarriers modulator further comprises a first modulator (230) configured to generate a first modulated signal by modulating a first data stream with a first subcarrier having a first frequency and a second modulator (240) configured to generate a second modulated signal by modulating a second data stream with a second subcarrier having a second frequency. The multiple subcarriers modulator further comprises a summing circuit (250) configured to generate a control signal by combining the first and second modulated signals and a switch controller (270) configured to control the antenna switch such that one of the impedance in the impedance matrix is connected to an antenna based on the control signal.

Abstract: The present disclosure provides a system for storing encrypted data. The system comprises a server and a plurality of clients. A first client of the plurality of clients is configured to send to the server a first reference value calculated from data to be encrypted and stored. The server is configured to determine a group of second clients from the plurality of clients, the second clients having each sent to the server data with a second reference value equal to the first reference value. The group of second clients is configured to perform a passive key exchange protocol with the first client, and the server is configured to determine, based on a result of the passive key exchange protocol, whether the data is to be stored in full or as deduplicated data.

Abstract: Various embodiments of the present invention relate to an electronic device and method for providing information on a key related to a door lock. According to the various embodiments, the electronic device comprises: a touchscreen display; a wireless communication circuit; a location detection sensor; at least one processor operatively connected to the display, the wireless communication circuit, and the location detection sensor; and a memory operatively connected to the processor, wherein the memory can store instructions causing, when executed, the processor to provide a user interface (UI) on the display, select, on the partial basis of at least one piece of data from the wireless communication circuit and/or the location detection sensor, a first key from among a plurality of electronic keys used for respectively opening one of a plurality of door locks, and display a first graphic user interface (GUI) related to the selected first key in order to be used or selected by a user input.

Abstract: Event planning using social networking enables an efficient implementation of planning an event, as well as minimizing network traffic and optimizing other technological aspects of life. Additional information acquired by sensors and other technology is able to improve the quality of the event planning Social network information as well as the additional information is able to be used to select aspects of the event such as time, location, and/or many other aspects of the event.

Abstract: Systems, methods, and apparatuses are provided for storing, dispensing, and facilitating replenishment of a dispenser. The dispenser may store and dispense one or more types of consumable items. Additionally, the dispenser may include one or more sensors for sensing a storage status of the dispenser (e.g., the quantity consumable items remaining in the dispenser). Further still, the dispenser may communicate storage status updates to a remote device on which a related application can be executed, for updating a current storage status, and presenting a notification to a user of the remote device, suggesting the purchase of additional consumable items to replenish the dispenser. The related application may further present the user with other types of purchasing-related information, such as cross merchandise opportunities, a retailer located nearest to the user/mobile device where the additional consumable items can be purchased from, as well as other shopping-related features and/or functionalities.

Abstract: The invention relates to an intelligent evacuation system and method used in a subway station fire. A fire alarm module discovers a fire and transmits fire information, a fire source positioning module positions a fire source according to the collected picture information and smoke information of the fire, an indoor pedestrian positioning module positions pedestrians in a subway station; a relay control module is connected with the fire alarm module, the fire source positioning module and the indoor pedestrian positioning module, and the relay control module combines fire information, fire source positioning information and pedestrian positioning information; and a master control module is connected with the relay control module, and the master control module plans a dynamic escape route for each pedestrian according to the combined information, pedestrian information collected by a subway APP and pedestrian information collected by a map management system, and generates an escape route guide map.

Abstract: An electronic device may receive information associated with another electronic device that is proximate to the electronic device. Then, the electronic device may identify the other electronic device based on an identifier (such as a Media Access Control address) that is included in the information that is associated with the other electronic device. Moreover, the electronic device may access a pattern of activity for a region that includes the electronic device, where the pattern of activity includes events and identifiers of one or more electronic devices in the region during the events. For example, the events may include reported criminal activity. Next, the electronic device may determine an association between the other electronic device and at least one of the events based on the pattern of activity. Furthermore, the electronic device may provide a notification based on the determined association.

Abstract: In some examples, after a jack of a power supply is connected to a port of a device, a first safety chip may provide a signal that includes an amount of power sufficient to power a second safety chip located in the power supply. After receiving a message from the second safety chip, the first safety chip may send the second chip an instruction to cause relays in the power supply to transition from open to closed, causing power to be provided by the jack to the computing device. The first safety chip may repeatedly send a continue instruction requesting the second chip to keep the relays in the closed position. If the jack is disconnected from the port, the second safety chip fails to receive the continue instruction and causes the relays to transition back to the open position, stopping power from being provided by the power jack.

Abstract: A radio wave measurement method used in a transmitter and a receiver, includes transmitting a radio wave from the transmitter, receiving the radio wave by the receiver through a scatterer, measuring, a plurality of times, reception qualities of the radio waves received by the reception antenna of the main reception surface and received respectively by the reception antennas of the plurality of sub-reception surfaces while changing a position of the receiver, and determining a position of the receiver when the reception quality of the radio wave corresponding to the reception antenna of the main reception surface and the reception qualities of the radio waves corresponding to the plurality of sub-reception surfaces satisfy a predetermined condition as a measurement position used for derivation of a material constant of the scatterer.

Abstract: A radar fill level measurement device includes an arrangement having at least one radar chip which has a plurality of transmitting channels and a plurality of receiving channels. In addition, the device includes an antenna arrangement having a plurality of transmitting elements and receiving elements. The device has more transmitting channels than transmitting elements and/or more receiving channels than receiving elements.

Abstract: A system for health screening and access to a facility comprises a computer server and a plurality of stations. The computer server and/or each station are configured to: receive input from a touch screen indicating one of a plurality of entrant types, the input being initiated by an individual; receive identification information from a badge scanner; receive a temperature value from a temperature scanner; if the temperature value is above a normal threshold, send a notification to facility staff; if the temperature value is within a normal range, display wellness attestation questions and receive wellness attestation answers; if any wellness attestation answer is adverse, send the notification; if no wellness attestation answer is adverse, for employees, display a question inquiring if the employee needs an item of personal protective equipment (PPE) and receive a PPE answer, and for non-employees, print a label that includes identification information about the individual.

Abstract: Embodiments relate generally to methods and systems for monitoring personal protection equipment (PPE) compliance. A method may comprise receiving, by a user identification (ID) module, information from sensor modules attached to PPE devices worn by the user, determining if the sensor modules indicate that the PPE devices are active or inactive, communicating the information from the user ID to a supervisor console, and displaying this information by a supervisor console. The user ID may be associated with a specific user, and the sensor modules may be associated with specific PPE devices. When it is determined that a required PPE device is inactive, corrective action may be taken by the supervisor.

Abstract: Using augmented reality (AR) to display information regarding products and services that are comparable or related to a product or service that a user of the AR device is viewing or may consider purchasing. For example, in response to scanning a particular product, an AR device may display one or more products comparable or related to the scanned product. These products may be presented to the user as a digital visualization wall of products, wherein the digital visualization wall is dynamically rendered in real-time and viewable from the AR device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing user intervention for a vehicle are provided. One of the methods includes: receiving an instruction to initiate an intervention session from a server, and providing, in response to receiving the instruction, a user interface associated with the intervention session for display on a terminal associated with the vehicle. The method further includes detecting, at the terminal, a user interaction corresponding to a command associated with operation of the vehicle, and generating a decision associated with the operation of the vehicle based at least in part on the command.

Abstract: Disclosed herein is an electronic device that includes a plurality of user accessible control buttons, a memory module, and at least one processor coupled to the memory module. The electronic device is to be paired with another electronic device.

Abstract: A method, a computer program product, and a computer system warn workers of a hazardous condition on a worksite. The method includes determining at least one outcome involving a worker and at least one worksite object based on conditions of the worksite. The method includes predicting whether a select one of the at least one outcome presents a hazardous condition to the worker. As a result of predicting that the select outcome presents the hazardous condition, the method includes transmitting a signal to a device associated with the worker. The signal triggers a warning to be received by the worker where the device is in a proximity of the worker.

Abstract: Rental property management technology, in which reservation data is accessed on a rental property management server, and a request from a mobile device for an upcoming reservation at a property is detected. In response to detecting the request, the rental property management server confirms the upcoming reservation based on the accessed reservation data. In response to confirming the upcoming reservation, the reservation management server generates a unique access code. The rental property management server transmits the unique access code to the mobile device and to a monitoring system on the property. The rental property management server also transmits data to the monitoring system indicating that the unique access code grants access to the property.

Abstract: A package container includes a body, a cover, a cover lock, a user interface, and an electronic controller. The electronic controller includes a memory and a processor. The processor is configured to store order information in the memory. The order information indicates that the package container is assigned to transport one or more items. The processor is configured to detect, at a first time, that the cover has moved from a closed state to an open state. The processor is also configured to store a trial start time that is based on the first time. The processor is configured to, based at least in part on receiving a return request via the user interface and detecting that the cover is in the closed state, store a second time as a trial end time and send a transportation request to a delivery management server to initiate transportation of the package container.

Abstract: Systems and methods for remote power tool control are provided. In one example, a battery pack is coupled to a power tool device. The battery pack includes a pack transceiver and a pack electronic processor. The pack electronic processor is coupled to the pack transceiver and is configured to determine that the power tool device is remotely controllable. The pack electronic processor is further configured to receive, wirelessly via a pack transceiver of the battery pack, a remote control command from a mobile device, and to provide the remote control command to the power tool device. The system further includes a tool electronic processor of the power tool device in communication with the pack electronic processor. The tool electronic processor is configured to control the power tool device to perform an action specified by the remote control command in response to receiving the remote control command.

Abstract: Systems, methods and software products optimize installation and operation of an object tracking system. Performance of the athlete tracking system is continually monitored and optimized based upon one or more of: statically positioned tags, grouping tags within two or more tag sets to assign ping rates, selecting receiver configuration and aim dynamically based upon environmental and situational conditions. Tracking tags are improved to facilitate coupling of the tag to an athlete and may be self-configurable. A trackable protection pad allows a tracking tag to be positioned substantially horizontal when the athlete is competing. A data replay tool replays location tracking information in chronological order and visually plots location of tracking tags and errors in the determined location. A tag manager automatically configures the tracking tags. A robotic vehicle automated installation of the object tracking system.

Abstract: An electronic device having a touch screen and an operation control method thereof are provided. The electronic includes a touch screen which receives a plurality of manipulations; and a controller which determines whether a second manipulation is made on a screen displayed on the touch screen during a predetermined time period after a first manipulation is made on the screen, and controls to perform an operation corresponding to the second manipulation instead of an operation corresponding to the first manipulation to be performed, if the second manipulation is made during the predetermined time after the first manipulation is made.

Abstract: A method and an apparatus for unlocking a user interface are disclosed. The method includes: selecting, when an unlocking interface is triggered, an unlocking password applicable to the interface from preset sets of passwords; and releasing a locked state of the interface when a user input password matching the unlocking password is received. Using the technical solutions of the present disclosure, the security of unlocking may be improved.

Abstract: User data stored in memory of a shared vehicle is managed in a secure manner. In some embodiments, user data stored in the vehicle is deleted in response to receiving a communication that initiates closing of usage of the vehicle (e.g., from a client device of a user that is operating the vehicle). A new user of a vehicle is prevented from being able to read or use private data of a prior user. In some embodiments, when authorizing usage of a vehicle by a new user, the vehicle is caused to delete the prior user data. After the prior user data has been deleted, a notification is received from the vehicle confirming that the vehicle has deleted the prior user data.

Abstract: Embodiments described herein provide for acoustic signatures in a playback system. As example implementation involves receiving from a microphone of the controller device, an audio signal played by a playback device, the audio signal indicating network information corresponding to the playback device. The example implementation further involves identifying the playback device based on the network information and responsively, modifying a user interface on the controller device based on the identification of the playback device.

Abstract: A communication system comprises: a hub apparatus configured to communicate with at least one external device; a terminal configured to establish a connection with the hub apparatus to control the at least one external device; and a vehicle configured to establish a connection with the hub apparatus to control the at least one external device, determine whether there is an overlapped control target with a control target of the terminal among the at least one external device, and when it is determined that there is the overlapped control target, take priority to control the overlapped control target.

Abstract: The invention discloses devices and methods to commission (i.e. perform joining and binding) and, as an option to personalize, a Home/Local Area Network installed in a building. Preferably, the network is a Zigbee network. The devices comprise a Smart Electric Controller (SEC) equipped with a Zigbee T/R unit and a control circuit, and a Remote Control, equipped with a Zigbee T/R unit and an input module. The joining is triggered by a first predefined event that may be a validation by a network node of a joining request initiated on power up of the SEC or on an electromagnetic signal transmitted in a pair-to-pair communication between the SEC and a network node. The binding is triggered by a second predefined event that may be a taptap or a proximity of a SEC detected by an accelerometer or a proximity sensor embedded in the RC. It may be alternatively triggered by the validation of reception an electromagnetic signal transmitted in a pair-to-pair communication between the RC and the SEC.

Abstract: An electronic device may receive information associated with another electronic device that is proximate to the electronic device. Then, the electronic device may identify the other electronic device based on an identifier (such as a Media Access Control address) that is included in the information that is associated with the other electronic device. Moreover, the electronic device may access a pattern of activity for a region that includes the electronic device, where the pattern of activity includes events and identifiers of one or more electronic devices in the region during the events. For example, the events may include reported criminal activity. Next, the electronic device may determine an association between the other electronic device and at least one of the events based on the pattern of activity. Furthermore, the electronic device may provide a notification based on the determined association.

Abstract: Systems and methods are provided that can include a doorbell device receiving a request signal to enter a region associated with the doorbell device from a remote control device and, responsive thereto, accessing a list identifying which of a plurality of authorized users are located within the region, identifying one of the plurality of authorized users associated with the remote control device, determining whether the list indicates that the one of the plurality of authorized users is located within the region, and determining whether to transmit a disarm command signal to a control panel device or an activation signal to an access control device based on whether the list indicates that the one of the plurality of authorized users is located within the region, wherein entries on the list can correspond to historical use of the doorbell device or the control panel device to enter and exit the region.

Abstract: A locking device includes a locking mechanism configured to lock and unlock different types of objects upon a corresponding command from a separate remote device such as a smartphone controlled by a user and running an application program. A motion sensor senses any physical motion of the locking device, and an alarm provides a visual and/or audible alarm upon sensed motion or tampering of the locking device. A location tracker (GPS) continuously senses a location of the locking device. A communication module is in two-way (cellular) signal communication with the remote device, which transmits signals to the communication module indicative of a user command to lock and unlock the locking mechanism. The communication module transmits signals to the remote device indicative of a status of various parameters of the locking device. A processor is configured for signal processing of the various signals within the locking device.

Abstract: Provided are exemplary embodiments including a method for creating and using a personal encounter history using a communication device. The method involves the communication device receiving the transmission of a pseudo identifier from a proximal communication device where the pseudo identifier is associated with the user of the proximal communication device. Once received, the method continues with the wireless communication device requesting and receiving the actual identification of the user of the proximal communication device that is correlated with the pseudo identifier. The communication device includes a transceiver capable of communicating wirelessly with a mobile telecommunications network, a memory device and a processor. To ensure privacy, the processor is capable of receiving a pseudo identifier from a proximate communication device and then requesting an actual identification correlated with the pseudo identifier of the proximate communication device.

Abstract: Described herein are frameworks and methodologies configured to enable integration of booking and access control for service providers. Embodiments of the invention have been particularly developed for allowing a user to gain access to an access controlled resource (for example a hotel room or the like) via a mobile device. This preferably occurs in the context of an arrangement where access rights are provided in real time upon completion of a booking. For example, some embodiments operate in the context of a mobile app and associated supporting infrastructure thereby to provide functionality to (i) find an available suitable resource; (ii) book that resource; (iii) provide payment; and (iv) gain access via the same mobile device. In some embodiments the technology leverages third party platforms for (i) to (iii), and provides (iv) based on output from processes at the third party platform(s).

Abstract: Embodiments described herein provide for acoustic signatures in a playback system. As example implementation involves receiving from a microphone of the controller device, an audio signal played by a playback device, the audio signal indicating network information corresponding to the playback device. The example implementation further involves identifying the playback device based on the network information and responsively, modifying a user interface on the controller device based on the identification of the playback device.

Abstract: A computer system determines a financial health rating for a user based on financial information associated with the user. The computer system detects receipt of digital content that includes an advertisement. Responsive to the detecting receipt of digital content, the computer system compares the content of the advertisement to the determined financial health rating of the user to determine whether the advertisement is appropriate for the user. Responsive to determining that the advertisement is not appropriate for the user, the computer system disallows display of the digital content.

Abstract: Systems and methods for recommending content to a user are described. A user equipment device may be equipped with a built-in or separately connected image capturing device which may be used to pinpoint the location of the remote control when it is activated, thereby defining the specific location of the remote and the user. The relative location of the user in the room where the television is located may be associated with that particular user and used to automatically log in and access their user profile. This information may be used to enhance the television experience for the user by, e.g., recommending content.

Abstract: A camera scanner captures an image of a document stand on which an object is placed using a camera unit. The camera scanner obtains an IP address of an electronic terminal (a smartphone) and an identifier of an image from the image of a display screen of the electronic terminal placed on the document stand by detecting and decoding a QR code. The camera scanner is connected to the electronic terminal based on the IP address, transmits a data transfer request including the identifier of the image to the electronic terminal, and receives image data transferred from the electronic terminal in response to the data transfer request. Then the camera scanner projects and plays an image generated based on the data transferred from the electronic terminal on the document stand using a projector.

Abstract: A computer-implemented method for border control is described. The method involves interaction between a user computing device and a management server. The following actions are performed at the user computing device. A registration process is performed that involving captures user information and a stored biometric of the user from a user travel document. A first fresh user biometric is also captured at the user computing device for verification to register the user at the management server. At least one check step is then performed during passage through a border control area, this check step comprising capturing a second fresh user biometric for verification and generation of a time limited code for completing the check step. Suitable apparatus to implement this method is also described.

Abstract: A method for securing fire-hazardous operations to be executed by a person in a fire-hazardous spatial work area, wherein a unique area identifier is associated with the work area and wherein the area identifier in the work area is electronically readable, includes receiving a unique identifier of the person, receiving an indication of the type of fire-hazardous operations to be executed, electronically reading the area identifier; sending a request to a database for master data on the work area, the request comprising the area identifier; receiving, in response to the sending of the request, the master data from the database, the master data including a unique spatial position of the work area; interrogating the safety devices of the work area to be deactivated for the duration of the time period; and sending a deactivation command to a fire alarm system.

Abstract: Methods, systems, and machine-readable media are disclosed for handling information related to a transaction conducted with a presentation instrument at a POS device. Extended application IDs and dynamic cryptograms are used for the transaction. According to one embodiment, a method of processing a financial transaction for an account having a primary account number (PAN) can comprise detecting initiation of the transaction with the presentation instrument, and providing from the presentation instrument to the POS device a list of one or more applications IDs. Each application ID identifies an application that can be used to communicate data concerning the transaction between the presentation instrument and the POS device. The POS device selects one of the application IDs and returns it to the presentation instrument. Under the control of the selected application, the presentation instrument generates a Dynamic Transaction Cryptogram (DTC) and a dynamic PAN that are each valid for only a single transaction.

Abstract: The control device of a communication system of an aircraft having a predefined number of communication channels comprises a processing unit and one or more sets of buttons each associated with a communication channel. The number of sets of buttons is less than the predefined number of communication channels of the communication system. The device comprises a set of call buttons comprising at least one transmission button, and a display area on a display screen, this display area being associated with the set of call buttons. The processing unit is configured to display an indication in the display area associated with the set of call buttons when the communication system receives a call on a channel with which no set of buttons is associated and to select this channel for transmission following an action of a user on the transmission button of the set of call buttons.

Abstract: To provide a time-series data analysis device which allows to compare time-series data easily.

Abstract: A method and system for synchronizing two or more media streams, generated by different sources. An identifier generator generates identifiers with unique sequence numbers and a unique media identifier in relation to a second media stream generated by second media server. The generated identifiers are supplied to an encoder and an identifier storage. In the identifier storage a broadcaster stores an associated URL (first media server address & content) with a particular identifier. The identifiers and the second media stream are encoded by the encoder into a carrier which is recorded or broadcasted. Play-out of the recorded or broadcasted is accomplished by feeding the encoded carrier to a decoder, which decodes the identifiers and the second media stream. The decoded identifier is received by a first device that retrieves the stored associated URL for the particular identifier and subsequently request first media server for the first media stream indicated by the associated URL.

Abstract: The disclosure relates to smart security inspection systems and methods. One illustrative method may comprise distributing, by the system, a security inspection tray to a person to be inspected through an unpacking station and associating/binding information regarding the person to be inspected to a baggage identifier, and identifying the baggage identifier, obtaining the information of the person to be inspected according to the baggage identifier, obtaining pre-stored risk information according to the information of the person to be inspected, performing differentiated security inspections on the person to be inspected and/or baggage according to the risk information, and associating/binding the obtained data to the information of the person to be inspected. Further implementations relate to features such as processing identity information, controlling flow in the baggage handling area(s), imaging baggage, packing the baggage, and finishing the security inspection.

Abstract: The disclosure relates to a context engine that can be used to identify, align, associate, validate, anticipate, and analyze new knowledge, insights and intelligence from large amounts of digital data. The essential foundation of knowledge about events is the clear and specific definition and understanding of the circumstances of those events. The present disclosure integrates modern technological capabilities including relational database structures and processing algorithms with an underlying semantic foundation to provide the opportunity for contextual understanding, analysis and insight. In various embodiments, the context engine may be based on “Five W” event circumstances, including “Who”, “Where”, “When”, “What”, and “Why” circumstances that provide a logical semantic foundation for knowledge and understanding about modeled events, enabling users to associate those circumstances with existing information.

Abstract: A system and method for improved detection and usability of personal electronic devices for field engineers is disclosed. A personal electronic device stores a list of commands in memory. The personal electronic device presents a user interface in a relative motion input mode, wherein the user interface in the relative motion mode is divided into a plurality of user interface zones. The personal electronic device receives relative motion input, wherein the relative motion input is received through one or more relative motion sensors of the personal electronic device. The personal electronic device determines whether the received relative motion input matches input associated with a respective command in a list of reference commands. In accordance with a determination that the received relative motion input matches input is associated with a respective command in the list of reference commands, the personal electronic device executes the respective command.

Abstract: A high security electromechanical lock has a lock assembly configured to extend or retract a locking member. The lock assembly includes a first microcontroller communicatively coupled to an electronic storage memory. An electronic key input assembly is electrically and mechanically coupled to the lock assembly. The electronic key input assembly includes an electronic dial ring base having a base plate and a communications hub circuit. The base plate has a side wall. The communications hub circuit has a plurality of communications ports arranged around a periphery of the base plate that are accessible through the side wall. Each of the plurality of communications ports is configured to communicate with a respective peripheral electronic device of a plurality of peripheral electronic devices. The base plate is configured to mechanically removably mount each of the plurality of peripheral electronic devices around the periphery of the side wall of the base plate.

Abstract: Systems and methods for governing execution of a service provisioning engagement are described. In one implementation, the described methods are implemented in the systems, where the method includes determining a customized schema based on a viable systems model, where the customized schema is defined using a plurality of dimensions and a plurality of sub-dimensions, where the plurality of dimensions and the plurality of sub-dimensions is defined using a plurality of parameters. The method also includes determining a system dynamics model which defines relationship between the plurality of parameters of the customized schema. The method further includes setting targets for at least one parameter from amongst the plurality of parameters of the customized schema and simulating the at least one parameter interactively based on the system dynamics model.

Abstract: Methods, systems, and machine-readable media are disclosed for handling information related to a transaction conducted with a presentation instrument at a POS device. Extended application IDs and dynamic cryptograms are used for the transaction. According to one embodiment, a method of processing a financial transaction for an account having a primary account number (PAN) can comprise detecting initiation of the transaction with the presentation instrument, and providing from the presentation instrument to the POS device a list of one or more applications IDs. Each application ID identifies an application that can be used to communicate data concerning the transaction between the presentation instrument and the POS device. The POS device selects one of the application IDs and returns it to the presentation instrument. Under the control of the selected application, the presentation instrument generates a Dynamic Transaction Cryptogram (DTC) and a dynamic PAN that are each valid for only a single transaction.

Abstract: A student grouping and communication system includes student devices coupled through a network to a teacher device and each including an indicator device that can provide a indication. The teacher device displays a graphical user interface that includes a student device indicator for each student device. The teacher device then receives a request to group the student devices and determines groups of student devices. Each of the groups of student device includes a subset of the student devices that are not included in the others of the groups of student devices. The teacher device then provides a group designation instruction to each of the student devices to cause each respective group of student devices to activate their indicator devices to provide a first group indicator that is different than other group indicators provided by the indicator devices on student devices in the others of the groups of student devices.