An interrogation device includes an emitter configured to emit an infrared (IR) inquiry signal to a target entity to determine if the target entity is a friendly entity. The interrogation device also includes a viewing device, configured to view IR signals, through which an IR response beacon signal from a target beacon of the target entity is viewed. The viewing device is configured to output a signal having a signal pattern of a response beacon signal expected from a beacon associated with the friendly entity, so that the target beacon is determined to be associated with the friendly entity if the response signal pattern of the target beacon matches the expected signal pattern in the viewing device.
An interrogation device includes an emitter configured to emit an infrared (IR) inquiry signal to a target entity to determine if the target entity is a friendly entity. The interrogation device also includes a viewing device, configured to view IR signals, through which an IR response beacon signal from a target beacon of the target entity is viewed. The viewing device is configured to output a signal having a signal pattern of a response beacon signal expected from a beacon associated with the friendly entity, so that the target beacon is determined to be associated with the friendly entity if the response signal pattern of the target beacon matches the expected signal pattern in the viewing device.
G01S 17/74 - Systèmes utilisant la reradiation d'ondes électromagnétiques autres que les ondes radio, p. ex. pour l'identification ami–ennemi
H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
A method for power management in a beacon includes determining a program density of a signaling program; determining an initial driving voltage using the program density; determining a current setting for an emitter using the initial driving voltage; adjusting the initial driving voltage to a start-up voltage; executing the signaling program using the start-up voltage; and adjusting the start-up voltage to a signaling voltage.
G09G 3/32 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées utilisant des panneaux électroluminescents semi-conducteurs, p. ex. utilisant des diodes électroluminescentes [LED]
A method and apparatus for preventing fratricide including an emitter that emits a signaling code at a wavelength, the signaling code representing a coded message; a receiver that captures an image of a field of view including the emitter and generates image information corresponding to the captured image; a translation system that: receives the image information, and decodes the coded message from the image information; and a output device that outputs the decoded message.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A programmable infrared beacon having an electronics circuit with a microprocessor contained within a transparent housing. A number of signaling infrared light emitting diodes are provided within the housing and connected to the electronics circuit. The beacon has a number of pins for inputting programs and controls and a number of color-coded light emitting diodes within the housing indicating the inputted program. An infrared received sub-circuit is provided to receive instructions from an external source. A programmer unit is also provided to prepare and transmit programs and controls to the beacon. Synchronization and cascading among beacons is provided with synchronization and delay programs within the microprocessor. An infrared detector is also provided to allow synchronization reception among beacons. In an alternate embodiment, a radio frequency transceiver and antenna is added to each beacon.
G08B 5/00 - Systèmes de signalisation optique, p. ex. systèmes d'appel de personnes, indication à distance de l'occupation de sièges
G01K 11/30 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant la mesure de l'effet d'un matériau sur un rayonnement X, un rayonnement gamma ou un rayonnement corpusculaire
G06F 15/00 - Calculateurs numériques en généralÉquipement de traitement de données en général
A system comprised of a one or more rapidly flashing thermal image beacons, a plurality of sensors, a control subsystem, input means, and a power source. Each beacon being comprised of a precision machined and polished parabolic or elliptical mirror. A resistive heating element is nominally positioned at the mirror focal point. The heating element is mounted on a carriage which can be moved backwards and forwards by a microprocessor-controlled mechanism. The resulting oscillatory action creates a rapidly changing coded flashing thermal image.
