Computer keyboards with few keys designating hundreds of functio

Details Computer keyboards with few keys designating hundreds of functio Computer keyboards with few keys designating hundreds of functio

1983-01-21

1985-10-15

Malzahn, David H.

Boots, shoes, and leggings

364900, G06F 302

Patent

active

045478600

ABSTRACT:
A computer keyboard system provides for fast entry of all numeric data, yet with only a small number of keys, such as the minimum number of twelve, is able to make hundreds of computer functions available for access from the keyboard. Typically a sixteen key keyboard will make available 266 different functions from a modern computer chip, surprisingly without sacrifice of more complex programming procedures and with significant advantage in providing finger room for error free operation of pocket-size computers, for example. A charted catalog of functions and corresponding keystroke selections is graphically displayed adjacent the keyboard keys so that reference to an instruction manual is minimized. Also by appropriate abbreviated notation a more diverse selection of functions is available to the keyboard as designated functions. This simplification of keyboards to be able to provide access to the many built-in programs, subroutines and functions available on modern day computer chips is made feasible by operating a live keyboard in a data input mode and shifting the mode by an execute key to a function selection mode requiring a sequence of two (or more) keystrokes. Thereby for X keys on a keyboard X.sup.n functions become accessible where n is the number of keystrokes in the function selection sequence.

REFERENCES:
patent: 3892958 (1975-07-01), Tung
patent: 3967273 (1976-06-01), Knowlton
patent: 4120040 (1978-10-01), Aihara
patent: 4202038 (1980-05-01), Petersson
patent: 4272826 (1981-06-01), Deutsch
patent: 4279022 (1981-07-01), Abe
patent: 4302816 (1981-11-01), Yamamoto
patent: 4344069 (1982-08-01), Prame

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