Keyboard contoured to the natural shape of the hand
First Claim
1. A keyboard comprising a plurality of keys including alphanumeric keys disposed such that the alphanumeric keys form a continuous key array defining a key array surface having at least two concave regions, wherein a plurality of keys comprising one of said at least two concave regions are non-rectilinear keys, at least two keys in a row are shaped differently from each other, wherein the orientation of the major principal axis of the striking faces of the keys in a row varies with the position of the keys in said row.
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Accused Products
Abstract
This invention provides novel keyboards comprising keys disposed such that they minimize the distance a finger typically must travel to effect a keystroke and the force that is applied to effect a keystroke. Accordingly the keyboards require less arm and finger movement to and thereby reduce the likelihood of an operator developing a repetitive stress injury (RSI). In one embodiment the keyboards comprise a plurality of keys disposed such that the alphanumeric keys form a continuous key array defining a key array surface having at least two concave regions wherein a plurality of keys present irregular and/or non-rectilinear striking faces.
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Citations
47 Claims
- 1. A keyboard comprising a plurality of keys including alphanumeric keys disposed such that the alphanumeric keys form a continuous key array defining a key array surface having at least two concave regions, wherein a plurality of keys comprising one of said at least two concave regions are non-rectilinear keys, at least two keys in a row are shaped differently from each other, wherein the orientation of the major principal axis of the striking faces of the keys in a row varies with the position of the keys in said row.
- 40. A keyboard comprising a plurality of keys including alphanumeric keys disposed such that the alphanumeric keys form a continuous key array defining a key array surface having at least two concave regions, wherein a plurality of keys comprising one of said concave regions have a striking face that is substantially elliptical in shape, wherein the major axis of the ellipses of said keys are directed diagonally generally toward the center of each concave region of said keyboard.
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43. A keyboard comprising a plurality of keys including alphanumeric keys disposed such that the alphanumeric keys form a continuous key array defining a key array surface having at least two concave regions, wherein a plurality of keys comprising one of said at least two concave regions are non-rectilinear keys, at least two keys in a row are shaped differently from each other, wherein letter or punctuation typically keys struck by the fifth finger of a user have a larger striking face than the striking face of keys typically struck by the first (index) finger of a user in a standard touch typing system.
- 44. A keyboard comprising a plurality of keys including alphanumeric keys disposed such that the alphanumeric keys form a continuous key array defining a key array surface having at least two concave regions, wherein a plurality of keys comprising one of said at least two concave regions are non-rectilinear keys, at least two keys in a row are shaped differently from each other, wherein said key array comprises a row of keys in which each key in said row has a single topmost point.
- 46. A keyboard comprising a plurality of keys including alphanumeric keys disposed such that the alphanumeric keys form a continuous key array defining a key array surface having at least two concave regions, wherein a plurality of keys comprising one of said at least two concave regions are non-rectilinear keys, at least two keys in a row are shaped differently from each other, wherein said key array comprises a row of keys in which each key in said row has a single bottom-most point.
Specification