Compact keyboard with sliding motion key actuation
First Claim
1. A keyboard for controlling data input of alphanumeric characters and other commands including in combination:
- an uppermost row of key switches;
an upper-middle, home row of key switches;
a lower-middle row of key switches;
a lowermost row of key switches;
said uppermost row having capacitance-responsive key switches, said capacitance-responsive key switches being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of convexly curved capacitance-responsive surfaces arcing downward away from the upper-middle, home row;
said upper-middle, home row having depressible key switches which include home keys for fingers of a keyboard operator and which are separately operable for actuating alphanumeric characters and other commands;
said lower-middle row having capacitance-responsive key switches, said capacitance-responsive key switches of the lower middle row being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of concavely curved capacitance-responsive surfaces sloping downward away from the upper-middle, home row and curving upward toward the lowermost row;
said lowermost row having depressible key switches which include home keys for thumbs of said keyboard operator and which are separately operable for actuating alphanumeric characters and other commands, and means for coupling all key switches with a processing device.
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Accused Products
Abstract
A keyboard allowing typists to use approximate QWERTY finger movements on a more compact, collapsible, and portable keyboard. The keyboard size is made more compact by using thin capacitance-responsive surfaces as key switches for the rows above and below the home row. The bottom, space-bar row is also touch-sensitive and is placed on the side of the keyboard facing the typist. The capacitance-responsive surface for the row of keys switches above the home row has a convex profile, and the capacitance-responsive surface for the row of keys switches below the home row has a concave profile, such that the keyboard can fold compactly upon itself. The home row retains depressible key switches in order to provide standard rest positions for the fingers. Characters and commands assigned to the rows above and below the home row are engaged by sliding the fingers over the capacitance-responsive surfaces adjacent to the home row.
49 Citations
40 Claims
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1. A keyboard for controlling data input of alphanumeric characters and other commands including in combination:
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an uppermost row of key switches;
an upper-middle, home row of key switches;
a lower-middle row of key switches;
a lowermost row of key switches;
said uppermost row having capacitance-responsive key switches, said capacitance-responsive key switches being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of convexly curved capacitance-responsive surfaces arcing downward away from the upper-middle, home row;
said upper-middle, home row having depressible key switches which include home keys for fingers of a keyboard operator and which are separately operable for actuating alphanumeric characters and other commands;
said lower-middle row having capacitance-responsive key switches, said capacitance-responsive key switches of the lower middle row being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of concavely curved capacitance-responsive surfaces sloping downward away from the upper-middle, home row and curving upward toward the lowermost row;
said lowermost row having depressible key switches which include home keys for thumbs of said keyboard operator and which are separately operable for actuating alphanumeric characters and other commands, and means for coupling all key switches with a processing device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A keyboard for controlling data input of alphanumeric characters and other commands including in combination:
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an uppermost row of key switches;
an upper-middle, home row of key switches;
a lower-middle row of key switches;
a lowermost row of key switches;
said uppermost row having capacitance-responsive key switches, said capacitance-responsive key switches being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of convexly curved capacitance-responsive surfaces arcing downward away from the upper-middle, home row;
said upper-middle, home row having depressible key switches which include home keys for fingers of a keyboard operator and which are separately operable for actuating alphanumeric characters and other commands;
said lower-middle row having capacitance-responsive key switches, said capacitance-responsive key switches of said lower-middle row being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of concavely curved capacitance-responsive surfaces sloping downward away from the upper-middle, home row and curving upward toward the lowermost row;
said lowermost row having capacitance-responsive key switches said capacitance-responsive key switches of the lowermost row being separately operable for actuating alphanumeric characters and other commands and which are being located within specific, assigned areas of flat capacitance-responsive surfaces, said flat capacitance-responsive surfaces being located on the side of the keyboard facing the keyboard operator, and means for coupling all key switches with a processing device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A keyboard for controlling data input of alphanumeric characters and other commands including in combination:
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two semi-cylindrical convex surfaces set parallel to each other, an uppermost row of key switches;
an upper-middle, home row of key switches;
a lower-middle row of key switches;
a lowermost row of key switches;
said uppermost row having capacitance-responsive key switches, said capacitance-responsive key switches being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of a convexly curved capacitance-responsive strip located within the far side, relative to a keyboard operator, of the semi-cylindrical convex surface located further from the keyboard operator;
said upper-middle, home row having depressible key switches which include home keys for fingers of the keyboard operator and which are separately operable for actuating alphanumeric characters and other commands, and wherein said home row of depressible key switches is housed within the near side, relative to the keyboard operator, of the semi-cylindrical surface further from the keyboard operator;
said lower-middle row having capacitance-responsive key switches, said capacitance-responsive key switches of the lower-middle row being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of the far side, relative to the keyboard operator, of the semi-cylindrical convex surface located closer to the keyboard operator;
said lowermost row having depressible key switches which include home keys for thumbs of the keyboard operator and which are separately operable for actuating alphanumeric characters and other commands, and wherein said lowermost row of depressible key switches is housed within the near side, relative to the keyboard operator, of the semi-cylindrical surface located closer to the keyboard operator, and means for coupling all key switches with a processing device. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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32. A keyboard for controlling data input of alphanumeric characters and other commands including in combination:
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two semi-cylindrical convex surfaces set parallel to each other, an uppermost row of key switches;
an upper-middle, home row of key switches;
a lower-middle row of key switches;
a lowermost row of key switches;
said uppermost row having capacitance-responsive key switches, said capacitance-responsive key switches being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of the far side, relative to a keyboard operator, of the semi-cylindrical convex surface located further from the keyboard operator;
said upper-middle, home row having depressible key switches which include home keys for fingers of the keyboard operator and which are separately operable for actuating alphanumeric characters and other commands, and wherein said home row of depressible key switches is housed within the near side, relative to the keyboard operator, of the semi-cylindrical surface located further from the keyboard operator;
said lower-middle row having capacitance-responsive key switches, said capacitance-responsive key switches of the lower-middle row being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of the far side, relative to the keyboard operator, of the semi-cylindrical convex surface located closer to the keyboard operator;
said lowermost row having capacitance-responsive key switches, said capacitance-responsive key switches of the lower-middle row being separately operable for actuating alphanumeric characters and other commands and being located within specific, assigned areas of the near side, relative to the keyboard operator, of the semi-cylindrical convex surface located closer to the keyboard operator, and means for coupling all key switches with a processing device. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40)
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Specification