US 2014/0198047 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.

Claims27

Dependent claims

A method for reducing error rates associated with key input to a keyboard, the method comprising:

detecting at least one keyboard event,
wherein the detected keyboard event includes a set of coordinates indicated by a touch of a user on a keyboard, and
wherein each key on the keyboard is represented by coordinates defining an area on the keyboard for that key;
determining an intended input key based on the detected keyboard event, wherein determining the intended input key includes:
determining multiple candidate keys near to the set of coordinates indicated by the touch on the keyboard;
calculating a probability for whether each of the multiple candidate keys was the intended input key;
and,
updating the defined area for a key on the keyboard based on the determined, intended input key.

5 more elements

A system for improving input to a virtual or touch 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 at least one keyboard event,
wherein the detected keyboard event includes a set of coordinates indicated by a touch of a user on the keyboard, and
wherein each key on the keyboard is defined by coordinates defining an area on the keyboard for that key;
means for determining an input key based on the detected keyboard event, wherein determining the input key includes:
determining multiple candidate keys;
calculating a probability for the input key;
and,
means for updating the defined area on the keyboard based on the determined input key.

8 more elements

A tangible computer-readable medium storing instructions that, when executed by at least one processor, reduce error rates associated with key input to a keyboard, comprising:

detecting at least one keyboard event,
wherein the detected keyboard event includes a set of coordinates that map to a keyboard location that is tapped by a user, and
wherein each key on the keyboard corresponds to a set of coordinates outlining an area on the keyboard for that key;
determining an intended input key based on the detected keyboard event, wherein determining the intended input key includes:
determining multiple candidate keys in the vicinity of the set of coordinates that map to the tapped keyboard location;
calculating a likelihood for whether each of the multiple candidate keys was the intended input key;
and,
updating the outlined area for a key on the keyboard based on the determined, intended input key.

5 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

Claims27