Ergonomically condensed QWERTY keyboard
First Claim
1. A keyboard, comprising:
- a first group of keys located on a main keyboard surface for accepting commands from a user;
wherein said first group of keys includes keys A, S, D, F, and G arranged in a QWERTY format and said first group of keys have a common shape; and
a second group of keys located on the main keyboard surface for accepting commands from the user;
wherein said second group of keys includes keys L, K, J, and H arranged in a QWERTY format;
the second group is arranged at an angle with respect to the first group so that the first and second groups form a V-shape wherein a vertex of said V-shape is closest to a bottom edge of said main keyboard surface and sides of said V-shape extend from said vertex towards an Upper edge of said main keyboard surface;
said key G of the first group that is nearest said key H in the second group being the same shape as the key H;
a plurality of keys in said first group are arranged in a first arc about one side of said V-shape;
a plurality of keys in said second group are arranged in a second arc about another side of said V-shape and said first and second arcs are the same; and
said key G of the first group and said key H of the second group are positioned adjacent to said vertex of said V-shape and said key G approximately contacts said key H.
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Abstract
An ergonomically improved, reduced size keyboard having a QWERTY keyboard layout allows maintenance of the same typing speed and accuracy associated with conventional keyboards. In one embodiment, the keys of the keyboard are divided into two sections, the sections being arranged to form a V-shape such that the centermost key in each row of each section approximately contacts the centermost key of the corresponding row in the other section. The V-shaped key layout allows the keyboard to maintain nearly all of the interkey spacing of a full-size keyboard while reducing overall keyboard width. The V-shaped key layout also alleviates wrist and finger strain that may otherwise occur during prolonged use of a keyboard. In another embodiment, further ergonomic improvement and size reduction of the keyboard is obtained by arcing each row of keys. Keys not on the row of home row keys are placed in the same positions relative to home row keys as found on a standard QWERTY keyboard. As a result, typists may switch easily between standard QWERTY keyboards and the keyboard according to the invention. A keyboard with a V-shaped keyboard layout and arced key rows according to the invention has a width 22.7% smaller than a typical full-size keyboard, while maintaining 95% of the interkey spacing. This keyboard according to the invention also has approximately the same width as a comparable reduced size keyboard, while increasing interkey spacing 18.75%.
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Citations
42 Claims
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1. A keyboard, comprising:
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a first group of keys located on a main keyboard surface for accepting commands from a user; wherein said first group of keys includes keys A, S, D, F, and G arranged in a QWERTY format and said first group of keys have a common shape; and a second group of keys located on the main keyboard surface for accepting commands from the user; wherein said second group of keys includes keys L, K, J, and H arranged in a QWERTY format; the second group is arranged at an angle with respect to the first group so that the first and second groups form a V-shape wherein a vertex of said V-shape is closest to a bottom edge of said main keyboard surface and sides of said V-shape extend from said vertex towards an Upper edge of said main keyboard surface; said key G of the first group that is nearest said key H in the second group being the same shape as the key H; a plurality of keys in said first group are arranged in a first arc about one side of said V-shape; a plurality of keys in said second group are arranged in a second arc about another side of said V-shape and said first and second arcs are the same; and said key G of the first group and said key H of the second group are positioned adjacent to said vertex of said V-shape and said key G approximately contacts said key H. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A keyboard comprising:
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a first group of primary home row keys located on a main keyboard surface for accepting commands from a user and including a key G, wherein a set of center points of a plurality of keys in said first group of primary home row keys define a first arc having a first chord; and
said first group of primary home row keys have a common shape; anda second group of primary home row keys located on the main keyboard surface for accepting commands from the user and including a key H, wherein a set of center points of a plurality of keys in said second group of primary home row keys define a second arc having a second chord; wherein said first and second groups of primary home row keys are arranged according to the QWERTY format; the first and second chords form a V-shape wherein a vertex of said V-shape is closest to a bottom edge of said main keyboard surface and said first and second chords are sides of said V-shape that extend from said vertex towards an upper edge of said main keyboard surface; and said key G of the first group and said key H of the second group are positioned adjacent to said vertex of said V-shape so that said key G approximately contacts said key H. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification