Handheld electronic device with text disambiguation

摘要

In view of the foregoing, an improved handheld electronic device includes a keypad in the form of a reduced QWERTY keyboard and is enabled with disambiguation software. As a user enters keystrokes, the device provides output in the form of a default output and a number of variants from which a user can choose. The output is based largely upon the frequency, i.e., the likelihood that a user intended a particular output, but various features of the device provide additional variants that are not based solely on frequency and rather are provided by various logic structures resident on the device. The device enables editing during text entry, and when initiating an activity session on a word such as during editing, the display outputs variants of the entire word being edited, rather than providing as variants only those parts of a word that are being edited. The device also provides a learning function that allows the disambiguation function to adapt to provide a customized experience for the user. In certain predefined circumstances, the disambiguation function can be selectively disabled and an alternate keystroke interpretation system provided. Additionally, the device can facilitate the selection of variants by displaying a graphic of a special key of the keypad that enables a user to progressively select variants generally without changing the position of the user's hands on the device.

主权项

1. A method of enabling input into an electronic device that comprises a display and a number of input members, at least some of the input members each having a plurality of characters assigned thereto, the method comprising:
detecting, at a location of a cursor, a deletion of a last character of a first default output that has been output on the display; detecting, after detecting the deletion, a selection of an input member having a plurality of characters, including the last character, assigned thereto; subjecting characters of the first default output that have not been deleted and the selected input member to disambiguation, to generate a second default output including the characters of the first default output that have not been deleted and a character other than the last character assigned to the selected input member; and outputting the second default output.