Alphanumerical keyboard
First Claim
1. An alphanumerical keyboard comprising a plurality of numeral keys and function keys,wherein the keyboard is programmed so that only simultaneous depression of exactly two mutually adjacent keys will generate an alpha-character and so that only depression of solely one numeral key will generate a numeral, wherein simultaneous depression requires both of the exactly two mutually adjacent keys to be in a depressed state at the same time.
1 Assignment
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Accused Products
Abstract
An alphanumerical keyboard which includes a plurality of numeral keys and function keys is programmed so that an alpha-character will always be generated when exactly two mutually adjacent keys are depressed simultaneously, and that a numeral will always be generated when only one numeral key is depressed.
43 Citations
7 Claims
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1. An alphanumerical keyboard comprising a plurality of numeral keys and function keys,
wherein the keyboard is programmed so that only simultaneous depression of exactly two mutually adjacent keys will generate an alpha-character and so that only depression of solely one numeral key will generate a numeral, wherein simultaneous depression requires both of the exactly two mutually adjacent keys to be in a depressed state at the same time.
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7. An alphanumerical keyboard comprising:
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a matrix of row and column keys, said keyboard being programmed to require depression of a single one of said keys to generate a numeral, said keyboard being programmed to limit generation of alpha-characters responsive to only the depression of exactly two adjacent of said keys, wherein said two adjacent keys are two adjacent row keys or two adjacent column keys, wherein simultaneous depression requires both of the exactly two mutually adjacent keys to be in a depressed state at the same time.
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Specification