Abstract: Systems for universally locking a trigger of a firearm are provided that require authentication to transition the firearm to an unlocked state. In general, examples of the systems for universally locking a trigger of a firearm described herein are located in an interchangeable grip portion of the firearm or mounted to an accessory rail of the firearm. Embodiments of the system generally include trigger interference or blocking members to prevent actuation of the trigger until the authentication system has authorized the user to fire the firearm. Once the system is authenticated, embodiments of the system remain in an unlocked state while the user is grasping the firearm. When the user removes their hand from the firearm, embodiments of the trigger locking system automatically returns to a locked state, reducing or eliminating unauthorized use of the firearm.

Abstract: A lock module for use with an electronic lock configured to selectively lock a lockable structure includes a communication subsystem configured to be communicatively coupled to a gateway and configured to be communicatively coupled to an electronic lock, wherein the communication subsystem is further configured to send an unlock signal to the electronic lock.

Abstract: An example air barrier system for a data center within a building is disclosed. The example air barrier system includes a pliable barrier material to partition an area above a top of row of computer cabinets in the data center and below an overhead surface of the building. The pliable barrier material is to reduce mixing of air between first and second aisles on opposites sides of the row of computer cabinets. The example air barrier system also includes a frame to support the pliable barrier material in position when in the area above the top of the row of computer cabinets. The frame is to be supported by the row of computer cabinets without support from the overhead surface.

Abstract: Apparatus for tensioning pliable airducts while supporting internal HVAC components are disclosed. An airduct system includes an airduct having a tubular wall of a pliable material. The airduct is elongate in a longitudinal direction. The airduct system further includes a frame including a hoop disposable inside the airduct to support the tubular wall in a radial direction that is perpendicular to the longitudinal direction. The hoop is less flexible than the pliable material. The airduct system also includes a sensor to be attached to the frame to be in fluid communication with a current of air within the airduct. The sensor is to provide a feedback signal that varies in response to a changing condition of the current of air.

Abstract: Methods and apparatus to provide visual information associated with welding operations are disclosed. An weld training system includes a display, a camera, a communications device, and a welding helmet. The communications device communicates with welding equipment. The welding helmet has a view port. The communications device is configured to hold the camera, the communications device, and the display such that, when the welding helmet is worn by a wearer, the display is viewable by the wearer, the camera has a view through the view port such that the display displays to the wearer images taken by the camera through the view port and displays a simulated object generated based on information received from the welding equipment via the communications device.

Abstract: Systems for universally locking a trigger of a firearm are provided that require authentication to transition the firearm to an unlocked state. In general, examples of the systems for universally locking a trigger of a firearm described herein are located in an interchangeable grip portion of the firearm or mounted to an accessory rail of the firearm. Embodiments of the system generally include trigger interference or blocking members to prevent actuation of the trigger until the authentication system has authorized the user to fire the firearm. Once the system is authenticated, embodiments of the system remain in an unlocked state while the user is grasping the firearm. When the user removes their hand from the firearm, embodiments of the trigger locking system automatically returns to a locked state, reducing or eliminating unauthorized use of the firearm.

Abstract: A method performed by a system of one or more computers for operating a virtual entry system for a building. The method includes receiving, from a mobile device, a selection associated with information related to a navigation interface. The method includes sending, to the mobile device in response to receiving the selection, information related to a communication interface, the information related to the communication interface including a meeting code. The method includes receiving, from the mobile device, a first request to initiate a communication session between the mobile device and an electronic device, the first request including the meeting code. The method includes initiating, based on the first request, a communication session between the mobile device and the electronic device. The method includes receiving a second request to unlock a door of the building in response to the communication session.

Abstract: In one aspect, a nuisance alert system configured to provide at least one of surveillance and active deterrence of any unwanted activity in a securable location, includes at least one notifier configured to output at least one signal in response to activation of the at least one notifier by a user in a securable location, and at least one output device configured to be triggered in response to the at least one signal generated by the at least one notifier, the at least one output device configured to, when triggered, provide one of surveillance and active deterrence of any unwanted activity in the securable location.

Abstract: Methods and apparatus to provide visual information associated with welding operations are disclosed. An weld training system includes a display, a camera, a communications device, and a welding helmet. The communications device communicates with welding equipment. The welding helmet has a view port. The communications device is configured to hold the camera, the communications device, and the display such that, when the welding helmet is worn by a wearer, the display is viewable by the wearer, the camera has a view through the view port such that the display displays to the wearer images taken by the camera through the view port and displays a simulated object generated based on information received from the welding equipment via the communications device.

Abstract: A microcontroller attachment for use with a microcontroller. The microcontroller attachment includes a first network interface controller (NIC) configured to communicate with a first dynamic host configuration protocol (DHCP) server to receive a first DHCP address and configured to establish a virtual private network (VPN) connection for a computing device to communicate with a remote server, the first NIC configured to be communicatively coupled to the computing device. The microcontroller attachment further includes a second NIC configured to receive a second DHCP address from a second DHCP server running on the microcontroller and send the second DHCP address to the computing device.

Abstract: Systems for universally locking a trigger of a firearm are provided that require authentication to transition the firearm to an unlocked state. In general, examples of the systems for universally locking a trigger of a firearm described herein are located in an interchangeable grip portion of the firearm or mounted to an accessory rail of the firearm. Embodiments of the system generally include trigger interference or blocking members to prevent actuation of the trigger until the authentication system has authorized the user to fire the firearm. Once the system is authenticated, embodiments of the system remain in an unlocked state while the user is grasping the firearm. When the user removes their hand from the firearm, embodiments of the trigger locking system automatically returns to a locked state, reducing or eliminating unauthorized use of the firearm.

Abstract: Methods and apparatus to provide visual information associated with welding operations are disclosed. An weld training system includes a display, a camera, a communications device, and a welding helmet. The communications device communicates with welding equipment. The welding helmet has a view port. The communications device is configured to hold the camera, the communications device, and the display such that, when the welding helmet is worn by a wearer, the display is viewable by the wearer, the camera has a view through the view port such that the display displays to the wearer images taken by the camera through the view port and displays a simulated object generated based on information received from the welding equipment via the communications device.

Abstract: Systems for universally locking a trigger of a firearm are provided that require authentication to transition the firearm to an unlocked state. In general, examples of the systems for universally locking a trigger of a firearm described herein are located in an interchangeable grip portion of the firearm or mounted to an accessory rail of the firearm. Embodiments of the system generally include trigger interference or blocking members to prevent actuation of the trigger until the authentication system has authorized the user to fire the firearm. Once the system is authenticated, embodiments of the system remain in an unlocked state while the user is grasping the firearm. When the user removes their hand from the firearm, embodiments of the trigger locking system automatically returns to a locked state, reducing or eliminating unauthorized use of the firearm.

Abstract: A microcontroller attachment for use with a microcontroller. The microcontroller attachment includes a first network interface controller (NIC) configured to communicate with a first dynamic host configuration protocol (DHCP) server to receive a first DHCP address and configured to establish a virtual private network (VPN) connection for a computing device to communicate with a remote server, the first NIC configured to be communicatively coupled to the computing device. The microcontroller attachment further includes a second NIC configured to receive a second DHCP address from a second DHCP server running on the microcontroller and send the second DHCP address to the computing device.

Abstract: A lock module for use with an electronic lock configured to selectively lock a lockable structure includes a communication subsystem configured to be communicatively coupled to a gateway and configured to be communicatively coupled to an electronic lock, wherein the communication subsystem is further configured to send an unlock signal to the electronic lock.

Abstract: A method performed by a system of one or more computers for operating a virtual entry system for a building. The method includes receiving, from a mobile device, a selection associated with information related to a navigation interface. The method includes sending, to the mobile device in response to receiving the selection, information related to a communication interface, the information related to the communication interface including a meeting code. The method includes receiving, from the mobile device, a first request to initiate a communication session between the mobile device and an electronic device, the first request including the meeting code. The method includes initiating, based on the first request, a communication session between the mobile device and the electronic device. The method includes receiving a second request to unlock a door of the building in response to the communication session.

Abstract: A lock module for use with an electronic lock configured to selectively lock a lockable structure includes a communication subsystem configured to be communicatively coupled to a gateway and configured to be communicatively coupled to an electronic lock, wherein the communication subsystem is further configured to send an unlock signal to the electronic lock.

Abstract: A microcontroller attachment for use with a microcontroller. The microcontroller attachment includes a first network interface controller (NIC) configured to communicate with a first dynamic host configuration protocol (DHCP) server to receive a first DHCP address and configured to establish a virtual private network (VPN) connection for a computing device to communicate with a remote server, the first NIC configured to be communicatively coupled to the computing device. The microcontroller attachment further includes a second NIC configured to receive a second DHCP address from a second DHCP server running on the microcontroller and send the second DHCP address to the computing device.

Abstract: A lock module for use with an electronic lock configured to selectively lock a lockable structure includes a communication subsystem configured to be communicatively coupled to a gateway and configured to be communicatively coupled to an electronic lock, wherein the communication subsystem is further configured to send an unlock signal to the electronic lock.

Abstract: Systems for universally locking a trigger of a firearm are provided that require authentication to transition the firearm to an unlocked state. In general, examples of the systems for universally locking a trigger of a firearm described herein are located in an interchangeable grip portion of the firearm or mounted to an accessory rail of the firearm. Embodiments of the system generally include trigger interference or blocking members to prevent actuation of the trigger until the authentication system has authorized the user to fire the firearm. Once the system is authenticated, embodiments of the system remain in an unlocked state while the user is grasping the firearm. When the user removes their hand from the firearm, embodiments of the trigger locking system automatically returns to a locked state, reducing or eliminating unauthorized use of the firearm.