Patent US 4,498,149

An input circuit adapted to be connected to an electronic translator is disclosed. The input circuit comprises an alphabetical keyboard for inputting key code information representative of letters in an input word and a single symbol additive key switch for adding any one of several specific symbols to at least one of the letters. The specific symbol represents, for example, an inflection and is needed to completely represent the input word. A circuit for changing the coded input representing the at least one letter by adding thereto coded input representing the specific symbol is provided.