A portable battery-powered communications device is configured to operate in a bidirectional communications mode in which voice and/or data is communicated in a bidirectional manner using a bi-directional communications protocol; and to operate in an emergency beacon mode. When the device is in the emergency beacon mode the device is configured periodically to transmit an emergency positioning message at maximum power using the bi-directional communications protocol, transmission of the emergency positioning message defining a beacon transmit period; optionally, to listen for transmissions using the bi-directional communications protocol in a beacon response period immediately following the beacon transmit period; and to refrain from powering transmit and receive circuitry of the device other than during the beacon transmit period and the beacon response period.


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    Titel :

    Emergency beacons


    Beteiligte:
    RANKI VILLE (Autor:in) / KAINULAINEN ANTTI (Autor:in) / BELLONI FABIO (Autor:in)

    Erscheinungsdatum :

    2016-05-31


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H04M TELEPHONIC COMMUNICATION , Fernsprechverkehr / G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze



    EMERGENCY BEACONS

    RANKI VILLE / KAINULAINEN ANTTI / BELLONI FABIO | Europäisches Patentamt | 2018

    Freier Zugriff

    Self-Identifying Emergency Radio Beacons

    Friedman, Morton L. | NTRS | 1987



    Multiple access model for emergency position indicating radio beacons

    Offutt, J.R. / Wilder, F.N. | Tema Archiv | 1976


    Emergency position indicating radio beacons operating on 2182 kHz

    May, W.K. / Wilder, F.N. | Tema Archiv | 1976