DEVICE FOR AUTOMATIC RADIOTELEPHONE COMMUNICATION Russian patent published in 1994 - IPC

FIELD: communication. SUBSTANCE: device includes mobile station with transceiver, mobile unit with generator of voice frequency, telephone dial and station unit composed of transceiver, receiver of voice frequency, former of pulse sequences, unit of dialling and holding of connection, transmission control unit, unit of zeroing and connection termination, unit of subscriber calling and line transformer, unit of clearing by signals of engagement of automatic telephone exchange composed of noise filter, voice frequency filter, unit of delay of operation of counter, former of signal level, unit of accurate tuning, counter of number of signals and former of clearing signal, circuit for connection of units for manual setting of connections, mobile unit of voice frequency on base of operational amplifier and zeroing unit on base of NOT-AND gate. EFFECT: improved reliability of radiotelephone communication. 5 dwg