US 2014/0198048 A1 · REDUCING ERROR RATES FOR TOUCH BASED KEYBOARDS

Abstract

The present technology provides systems and methods for reducing error rates to data input to a keyboard, such as a touch screen keyboard. In one example, an input bias model dynamically changes the keyboard functionality such that the keyboard will not necessarily produce the same result for an identical tap coordinate. Rather, the keyboard functionality is adapted to account for key offset bias that occurs when the user has a tendency to select a tap coordinate that would otherwise return an unintended key. Additionally, the present technology provides a language feedback model that may provide a probability for a next tap coordinate and may augment the key corresponding to the most probable next tap coordinate, thereby allowing the user to more easily select the correct key. Further details are provided herein.

Claims20

Dependent claims

A method for adjusting the operation of a virtual keyboard, comprising:

detecting a first input and a second input by the user on a virtual keyboard,
wherein the first and second inputs each include a set of coordinates corresponding to a touch of a user on the virtual keyboard, and
wherein each key on the virtual keyboard is defined by coordinates outlining an area on the keyboard for that key;
determining, in a language model, a predicted next key based on at least the first and second inputs;
and
redefining the defined area on the virtual keyboard for the predicted next key,
wherein the redefining alters a probability of associating a third input by the user to the predicted next key, and
wherein altering the probability includes altering the defined area on the virtual keyboard corresponding to the predicted next key.

5 more elements

At least one tangible computer-readable medium storing instructions, which when executed by at least one processor, adjusts operation of a virtual keyboard, comprising:

detecting a first input and a second input by the user on a virtual keyboard,
wherein the first and second inputs each include a set of coordinates indicated by a touch of a user on the virtual keyboard, and
wherein each key on the virtual keyboard is defined by coordinates defining an area on the keyboard for that key;
determining, in a language model, a predicted next key based on at least the first and second inputs;
and
modifying the defined area on the virtual keyboard for the predicted next key,
wherein the modifying adjusts a probability of associating a third input by the user to the predicted next key, and
wherein adjusting the probability includes adjusting the defined area on the virtual keyboard corresponding to the predicted next key.

5 more elements

A system for adjusting the operation of a virtual keyboard, the system comprising:

at least one processor;
at least one data storage device storing instructions performed by the processor;
a keyboard coupled to the processor;
a first set of instructions for detecting a first input and a second input by the user on a virtual keyboard,
wherein the first and second inputs each include a set of coordinates indicated by a tap of a user on the virtual keyboard, and
wherein each key on the virtual keyboard is defined by coordinates forming an area on the keyboard for that key;
means for determining, in a language model, a predicted next key based on at least the first and second inputs;
and
means for updating the defined area on the virtual keyboard for the predicted next key,
wherein the updating changes a probability of associating a third input by the user to the predicted next key, and
wherein changing the probability includes changing the defined area on the virtual keyboard corresponding to the predicted next key.

8 more elements

Dependencies are inferred from the claim text.

Reducing error rates for touch based keyboards

Life of this patent

Reducing error rates for touch based keyboards

Life of this patent

Abstract

Claims20