Automatic radio telephone system

Details Automatic radio telephone system Automatic radio telephone system

1978-10-26

1980-10-14

Wolff, John H.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455 31, H04M 704

Patent

active

042283191

ABSTRACT:
In a radio telephone system with mobile and stationary transmitting receiving stations and, connected to the stationary stations, a common switching station through which the mobile stations can be interconnected and connected to the subscribers of a line-wire telephone network, a faster connection set-up and a likewise faster switch-over of existing connections is possible because the stationary stations repeatedly transmit through their cell channel a channel number of a free duplex speech channel which is stored in a storage device in the mobile stations receiving the call channel. In response to a connection set-up command the stored channel number is used for automatically selecting the free duplex speech channel.

REFERENCES:
patent: 3582787 (1971-06-01), Muller et al.
patent: 3898390 (1975-08-01), Wells et al.
patent: 3906166 (1975-09-01), Cooper et al.

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