HANDHELD ELECTRONIC DEVICE WITH TEXT DISAMBIGUATION ALLOWING DYNAMIC EXPANSION OF INPUT KEY ASSOCIATIONS

摘要

A handheld electronic device includes a reduced QWERTY keyboard and disambiguation software. The device provides output in the form of a default output and variants. The output is based largely upon the likelihood that a user intended a particular output, but the device also provides additional variants that are not based solely on likelihood and are provided by various logic structures on the device. The device enables editing during text entry and a learning function that allows the disambiguation function to adapt for a customized experience. The disambiguation function can be disabled to provide alternate keystroke interpretation. Additionally, the device can facilitate variant selection by displaying a key to enable variant selection without changing hand position. If an input field into which text is being entered is determined to be special, a disambiguated result can be sought from a predetermined data source prior to other data sources.