Typability Optimized Ambiguous Keyboards With Reduced Distortion
First Claim
Patent Images
1. An apparatus comprising an ambiguous keyboard;
- said ambiguous keyboard comprising keys;
symbols;
said symbols characterized as assigned to said keys, said symbols further characterized as divided into conceptually disjoint subsets, such that all of said symbols ambiguously input by said ambiguous keyboard are in one of said disjoint subsets, and all members of a given of said disjoint subsets are assigned to a given of said keys.
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Abstract
An ambiguous keyboard which is sufficiently typable and similar to conventional keyboards to both expert and novice users. The layout of the key involves reduction in the number of keys (5101-4523) and placing several letters on each of the key (5101-4523) to accommodate reduction in size of the keyboard without overly compromising text-entry capacity.
139 Citations
33 Claims
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1. An apparatus comprising an ambiguous keyboard;
- said ambiguous keyboard comprising keys;
symbols;
said symbols characterized as assigned to said keys, said symbols further characterized as divided into conceptually disjoint subsets, such that all of said symbols ambiguously input by said ambiguous keyboard are in one of said disjoint subsets, and all members of a given of said disjoint subsets are assigned to a given of said keys. - View Dependent Claims (2)
- said ambiguous keyboard comprising keys;
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3. An apparatus comprising an ambiguous keyboard;
- said ambiguous keyboard inputting symbols;
said symbols characterized as containing at least one symbol selected from the set consisting of functional and letter symbols; and
where said at least one symbol possesses a multiple representation on said ambiguous keyboard;
said multiple representation characterized in that each representation is assigned to a different one of said keys, and further characterized in that said different of said keys are arranged so as to minimizes steric hindrance. - View Dependent Claims (4, 5)
- said ambiguous keyboard inputting symbols;
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6. An apparatus comprising a single row of keys;
- an ambiguous code;
said ambiguous code characterized as being of minimized gesture distortion;
where said gesture distortion is measured with respect to a conventional layout. - View Dependent Claims (7)
- an ambiguous code;
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8. An apparatus comprising a keypad with one to nine columns;
- an ambiguous code;
said ambiguous code characterized as being of minimized appearance distortion with respect to both order distortion and partition distortion;
said order distortion and said partition distortion evaluated with respect to a conventional layout;
said ambiguous code further characterized as maximized with respect to typability. - View Dependent Claims (9, 10)
- an ambiguous code;
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11. A method for making typability optimized keyboards with reduced distortion comprising the steps of selecting a conventional keyboard layout;
- selecting a reduced spatial arrangement;
selecting a distortion measure;
selecting a typability measure, evaluating a set of layouts by measuring said distortion measure and said typability measure for each element of said set of layouts;
selecting a subset of optimized layouts from said set of layouts.
- selecting a reduced spatial arrangement;
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12. An apparatus comprising an ambiguous keyboard;
- keys for inputting symbols;
said keys arranged in a substantially linear array;
disambiguation software;
said ambiguous keyboard characterized as minimized with respect to gesture distortion.
- keys for inputting symbols;
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13. An apparatus comprising an ambiguous keyboard;
- symbols;
keys for inputting said symbols;
disambiguation software;
said ambiguous keyboard characterized as optimized with respect to at least one typability constraint; and
minimized with respect to layout distortion, said layout distortion measured with respect to a conventional layout. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
- symbols;
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33. An unambiguous keyboard which is order distorted with respect to a conventional keyboard, said order distortion characterized in that it forms the basis of a family of typability optimized keyboards.
Specification