Method and devices for inserting additional pattern in, or remov

Method and means for securing the distribution of encoding keys

Method and system for 5-bit encoding of complete Arabic-Farsi la

Method and system for 5-bit encoding of complete Arabic-Farsi la

Method and system for data display and input via display screen

Method and system for machine enciphering and deciphering

Method and system for transmission of confidential data

Method for building-up of routing addresses in a digital telecom

Method for detecting the code-phase coincidence in an SSMA recei

Method for preventing "compromising radiation"

Method for synchronizing the pulse frames in time multiplex data

Method for the synchronization of a transmission path

Method for the time division multiplex transmission of data

Method of and apparatus for automatically detecting and treating

Method of and apparatus for establishing emergency communication

Method of and apparatus for printed character transmission and r

Method of and means for establishing two-way communication betwe

Method of and means for generating complex electrical coding wav

Method of and means for processing an audio frequency signal to

Method of coding and decoding messages