Keyboard divided by central inverted T-shaped entry-space key
First Claim
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1. A keyboard, comprising a plurality of regular keys;
- and an inverted T-shaped key located in a middle of the keyboard, having a `Space` and an `Enter` function, and subdividing said regular keys into two sections including one section for preferably left-hand operation and another section preferably for right-hand operation.
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Abstract
A keyboard comprises a plurality of regular keys, and an inverted T-shaped key subdividing the regular keys into two sections including one section for preferably left-hand operation and another section preferably for right-hand operation. A keyboard further comprises a trackball and/or two rollers requiring minimal hand movement in using them for mouse emulation.
65 Citations
15 Claims
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1. A keyboard, comprising a plurality of regular keys;
- and an inverted T-shaped key located in a middle of the keyboard, having a `Space` and an `Enter` function, and subdividing said regular keys into two sections including one section for preferably left-hand operation and another section preferably for right-hand operation.
- View Dependent Claims (2, 3, 4)
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5. A keyboard, comprising a plurality of regular keys;
- and an inverted T-shaped key subdividing said regular keys into two sections including one section for preferably left-hand operation and another section for preferably right-hand operation, said regular keys being arranged in rows of keys, said rows of keys being located on concave cylindrical surfaces.
- View Dependent Claims (6, 7)
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8. A keyboard, comprising a plurality of regular keys;
- an inverted T-shaped key subdividing said regular keys into two sections including one section for preferably left-hand operation and another section preferably for right-hand operation; and
a trackball located at a top part of the keyboard at a vertical central line of said inverted T-shaped key.
- an inverted T-shaped key subdividing said regular keys into two sections including one section for preferably left-hand operation and another section preferably for right-hand operation; and
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9. A keyboard, comprising a plurality of regular keys;
- an inverted T-shaped key subdividing said regular keys into two sections including one section for preferably left-hand operation and another section for preferably right-hand operation; and
two rollers located at a top or a bottom part of a keyboard to the left or to the right of a vertical central line of said inverted T-shaped key.
- an inverted T-shaped key subdividing said regular keys into two sections including one section for preferably left-hand operation and another section for preferably right-hand operation; and
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10. A keyboard, comprising a plurality of regular keys;
- an inverted T-shaped key subdividing said regular keys into two sections including one section for preferably left-hand operation and another section for preferably right-hand operation, said regular keys being arranged in key columns located on concave cylindrical surfaces with a curvature radius of 6 cm or more.
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11. A keyboard, comprising a plurality of regular keys;
- and an inverted T-shaped key subdividing said regular keys into two sections including one section for preferably left-hand operation and another section for preferably right-hand operation, each of said regular keys having a top cylindrical depression.
- View Dependent Claims (12)
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13. A keyboard, comprising a plurality of regular keys;
- and an inverted T-shaped key subdividing said regular keys into two sections including one section for preferably left-hand operation and another section for preferably right-hand operation, each of said keys having a key cap provided with a central hole helping to center a finger and develop a finger motor reaction in touch-typing training.
- View Dependent Claims (14, 15)
Specification