Device for interpreting identification signals and emergency signals for central radio stations

Abstract

Abstract 1. Device for interpreting identification and emergency call signals for central radio stations, to each of which is associated a specific number of associated mobile radio stations which, in emergencies, can also operate in a radio zone of a central radio station not associated with them and which, upon actuation of their transmitting key, transmit a multi-digit identification signal characteristic of them, or upon actuation of an emergency call key transmit to the central radio station an emergency call signal comprising the identification signal and an emergency call criterion, the identification and emergency call signals of the mobile radio stations of different radio zones differing from one another by the data content of a portion of the identification signal which comprises a predetermined number of digits of the identification signal, and the identification and emergency call signals being interpreted in the central radio station and being indicated by an indicator, characterized in that the identification and emergency call signal interpreter of each central radio station has an additional device which, upon the reception of identification and emergency call signals from mobile radio stations operating in the radio zone of the associated central radio stations, suppresses indication of the identification signal portion of each identification and emergency call signal or indicates symbol which are identical to one another, while the additional device fully indicates identification and emergency call signals from mobile radio stations which are not operating in the radio zone of their associated central radio station.

Inventors

• 👤 Horst Dallmann
• 👤 Jürgen Dr.-Ing. Wazeck

Bibliographic Details