Nuance Communications, Inc.

Claes-Fredrik Mannby

David Jon Kay

Ethan Robert Bradford

Erland Unruh

Simon H Corston

Keith Trnka

Donni McCray

Gordon Waddell

The disclosed system provides an efficient method of using a later word or words entered after a previous word along with one or more language models that show which words are likely to occur together to identify a better disambiguated choice for the previous word. To identify the better disambiguated choice for the previous word, the system can evaluate the conditional probability for the later word of various candidate previous words, and select the candidate previous word that has the highest conditional probability. If the conditional probability of the selected candidate previous word exceeds that of the previous word that was entered by at least a factor, then the system can include the selected candidate previous word in a selection list for user selection. The disclosed system also provides an efficient method for using one or more language models and a later word to correct errors in segmenting the word.

Correction of previous words and other user text input errors

System and methods are provided for interpreting multiple contact events detected on a virtual keyboard of a computing device to determine an intended key press. The systems and methods utilize event data collected from each of the multiple contact events on a touchscreen in order to provide a general confidence level at which each contact event is deemed to be an intended key press. The confidence level is based on a probabilistic/algorithmic assessment of various criteria for each contact event detected. The criteria may be variable and rely on other events detected on the virtual keyboard even though each contact event is considered a physically independent action from one another. Once an intended key is determined, that key may be input to a word predication application also stored on the computing device. The word prediction application may use the intended key to predict at least one word for the user.

System and methods for determining keyboard input in the presence of multiple contact points

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Seattle, WA, United States of America

Claes-Fredrik Mannby