Apparatus and method for controlling a modular telecommunication

Apparatus for establishing multi-address and conference call con

Apparatus for generating telex signaling sequences in a distribu

Arrangement for connecting information transducers in program co

Arrangement for effecting a variable modification of information

Arrangement for the transmission of data

Asynchronous data transmission method and circuitry

Caboose signal controlled reporting arrangement for a regenerato

Circuit arrangement for connecting at least two teleprinters to

Circuit arrangement for connecting telex subscriber stations to

Circuit arrangement for determining input signals which exceed a

Circuit arrangement for determining specific characters occurrin

Circuit arrangement for identification and addressing

Circuit arrangement for receiving unipolar DC signals

Circuit arrangement for releasing a keyboard store in teleprinte

Circuit arrangement for storing information formed of teletype c

Circuit arrangement for the switching on and off of a teleprinte

Circuit arrangement for transmitting digital signals between tra

Circuit for coded symbol conversion

Circuit for converting a binary input signal into a telegraph si