Method for character code generation

Details Method for character code generation Method for character code generation

1990-01-25

1991-01-29

Shoop, Jr., William M.

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

341 24, H03M 1100

Patent

active

049889974

ABSTRACT:
In a keyboard operation two sequential keystrokes are used for generation of a character code. A rule is set up according to which some preset combinations of two sequential keystrokes are valid and others are not. The rule is implemented by storing the validity conditions into a table in a control unit. According to a preferred rule the second key to be operated must be located in a column to the right of the column where the first key is located, otherwise an error signal will be generated. The method is preferably used for a one hand keyboard with three times four keys.

REFERENCES:
patent: 3967273 (1976-06-01), Knowlton
patent: 4005388 (1977-01-01), Morley et al.
patent: 4344069 (1982-08-01), Prame
patent: 4381502 (1983-04-01), Prame
patent: 4724423 (1988-02-01), Kinoshita

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