Four row overload QWERTY-like keypad layout
First Claim
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1. An overloaded keypad layout for English alphabet text input and display using a touchscreen comprising:
- a matrix of a plurality of keys, the matrix comprising a bottom row, a second row which is positioned above the bottom row, a third row which is positioned above the second row, and a top row which is positioned above the third row, and N columns, wherein N is 5, 6, 7, or 8,wherein said plurality of keys comprise function keys and character keys for actuating at least one character, said character keys including a space-key for actuating a space in text,wherein at least one character key is an overloaded key having a first-assigned character and a second-assigned character,wherein letter “
q”
is assigned in a leftmost character key of the top row,wherein letter “
a”
is assigned in a leftmost character key of the third row,wherein letter “
p”
is assigned in a rightmost character key of the third row,wherein letter “
l”
is assigned in a rightmost character key of the second row,wherein a leftmost character key of the bottom row is an overloaded key having letters “
z” and
“
x”
assigned together therein,wherein said function keys comprise;
a backspace key for deleting text;
a language switch key for switching between a first language and a second language;
a numeric switch key for switching between a letter input level and a numeric and/or a punctuation input level;
an enter key; and
a shift key for enabling of input of capital letters,wherein each of the bottom row, the second row, the third row, and the top row include at least one character key for actuating an English alphabet, and all twenty-six English alphabet letters assigned to respective character keys are positioned within the bottom row, the second row, the third row, and the top row.
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Abstract
Provided is an overloaded keypad layout which is efficient, ergonomic, unambiguous, intuitive to operate, and also familiar to the average user in its letter arrangement. More particularly, the overloaded keypad layout comprises four rows, and a space-key is positioned in the third row from bottom, and is QWERTY-like its letter arrangement. Further, the multitap input method or selector (select-the-next-letter key) input method may be employed to disambiguate the overloaded keypad layout.
25 Citations
19 Claims
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1. An overloaded keypad layout for English alphabet text input and display using a touchscreen comprising:
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a matrix of a plurality of keys, the matrix comprising a bottom row, a second row which is positioned above the bottom row, a third row which is positioned above the second row, and a top row which is positioned above the third row, and N columns, wherein N is 5, 6, 7, or 8, wherein said plurality of keys comprise function keys and character keys for actuating at least one character, said character keys including a space-key for actuating a space in text, wherein at least one character key is an overloaded key having a first-assigned character and a second-assigned character, wherein letter “
q”
is assigned in a leftmost character key of the top row,wherein letter “
a”
is assigned in a leftmost character key of the third row,wherein letter “
p”
is assigned in a rightmost character key of the third row,wherein letter “
l”
is assigned in a rightmost character key of the second row,wherein a leftmost character key of the bottom row is an overloaded key having letters “
z” and
“
x”
assigned together therein,wherein said function keys comprise; a backspace key for deleting text; a language switch key for switching between a first language and a second language; a numeric switch key for switching between a letter input level and a numeric and/or a punctuation input level; an enter key; and a shift key for enabling of input of capital letters, wherein each of the bottom row, the second row, the third row, and the top row include at least one character key for actuating an English alphabet, and all twenty-six English alphabet letters assigned to respective character keys are positioned within the bottom row, the second row, the third row, and the top row. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification
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Current AssigneeHyun Woo Shin, Joon Shin
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Original AssigneeHyun Woo Shin, Joon Shin
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InventorsShin, Joon, Shin, Hyun Woo
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Primary Examiner(s)Nguyen, Kevin M
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Application NumberUS15/201,611Publication NumberTime in Patent Office1,093 DaysField of SearchUS Class CurrentCPC Class CodesG06F 3/0219 Special purpose keyboardsG06F 3/0233 Character input methodsG06F 3/04886 by partitioning the display...
