Patent US 4,159,536

A portable electronic language translation apparatus including a keyboard for receiving operator entered words in one language and a memory such as a programmable read only memory controlled by a microprocessor for comparing and analyzing each letter or group of letters of the keyboard entered word to determine whether the corresponding word in a second language is stored within the memory. If the corresponding word is so stored, it is displayed for viewing by the operator. The disclosed circuit permits automatic translation from one language to another without specification of the input language by the operator.