Letter input device for electronic word retrieval device

摘要

An input device for a word information storage and retrieval device such as an electronic dictionary includes a single multiconduct bar switch, a detection circuit, a shift circuit, and a display. The single bar switch corresponds to a plurality of letters or characters, such that the single bar switch is operable to input each one of the plurality of letters of characters depending on the actuated position of the bar switch. The detection circuit is responsive to the single bar switch for detecting the actuated position of the single bar switch and for detecting which of the plurality of letters or characters is input. The display is responsive to the detection circuit for displaying a detected one of the plurality of letters or characters input. The shift circuit is operable to shift the selection of the detected one of the plurality of letters or characters.