Keyboard entry system

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United States of America Patent

PATENT NO 4638306
SERIAL NO

06574894

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A keyboard entry system is disclosed which comprises a keyboard which includes a plurality of letter keys, one for each letter of a selected language. The entry system responds to conventional sequential activation of individual keys by providing output signals indicative of the respective individual letters associated with the activated keys to an application program such as a word processor or printer control program. The keyboard entry system also responds to chords of simultaneously activated multiple keys by using these chords to retrieve stored words from a dictionary. It is the stored words rather than the entered chords which are applied as inputs to the application program. This system allows an operator to use both conventional sequential key entry techniques and chorded entry techniques for rapid data entry.

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Patent Owner(s)

Patent OwnerAddress
QUIXOTE CORPORATIONONE EAST WACKER DRIVE A IL CORP CHICAGO IL 60601

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endo, Yukio Thornton, NH 63 1175
Rollhaus, Philip Chicago, IL 1 14

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