KEYBOARD OPERATED WITH TWO THUMBS AND KEY LAYOUT METHOD THEREOF

摘要

The present invention discloses a keyboard and a key layout method. When an operator holds the keyboard with both hands, thumbs of a left and right hands cannot touch a middle position of the keyboard, the keyboard has at least three rows of keys and more than five keys arranged in each row, and widths of all the keys arranged on a middle line of the keyboard are all greater than a width exceeding a touchable range of the thumbs of both hands in a keyboard width; widths of a left side key and a right side key arranged closest to the middle line of the keyboard are greater than a half of the width exceeding the touchable range of the thumbs of both hands in the keyboard width. All the keys in the keyboard are respectively located at positions touched by the left and right thumbs.

主权项

1. A keyboard having a dimension such that when an operator holds a left side and a right side of the keyboard with a left hand and a right hand respectively, a middle region of the keyboard is untouchable by a left thumb and a right thumb of the operator, the keyboard comprising:
at least three rows of keys, each row having more than five keys, wherein each row of keys comprises one or two keys selected from the group consisting of a middle key lying on a middle line perpendicular to the rows of keys and having a width greater than a width of the middle region disposed beyond touchable ranges of the left and right thumbs of the operator; and left and right middle keys lying on a left side and a right side of the middle line and adjacent to each other, each of the left middle key and the right middle key having a width greater than a half of the width of the middle region; wherein all the keys in the keyboard are respectively located at positions touchable by the left and right thumbs of the operator; wherein preset widths of the keys in the keyboard are set according to a keyboard width and percentages that widths of the keys account for in the keyboard width, a remaining width acquired by subtracting the width of the middle region from the keyboard width is used as the keyboard width when setting the widths of the keys, wherein the width of the middle key has the width of the middle region added therein, and the width of each of the left middle key and the right middle key has a half of the width of the middle region added therein; wherein when the operator holds the keyboard with both hands, the left and right thumbs of the operator at least respectively touch a leftmost end and a rightmost end of the middle key, and the left and right thumbs of the operator at least respectively touch a leftmost end of the left middle key and a rightmost end of the right middle key; and wherein the keyboard is a physical keyboard, and the middle region of the physical keyboard is untouchable by the left and right thumbs of the operator holding the left and right sides of the keyboard with the left and right hands respectively.