G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 9/00 (2006.01) G06F 3/033 (2006.01) G06F 15/18 (2006.01) G06F 17/24 (2006.01) G06K 9/03 (2006.01) G06K 9/22 (2006.01)
Patent
CA 2089784
An apparatus and method in a tablet computer for disambiguating a handwriting input stream generated by a stylus-based user interface. A tablet application program interface (TAPI) of the present invention receives stroke data generated by a stroke made by a user on a digitizing tablet. The TAPI inserts the stroke data into a database. If the stroke is an editing gesture, the TAPI routes the stroke to a gesture recognizer which identifies an editing dialog. The TAPI then executes the dialog to perform operations on the database. If the application program is expecting text input, the TAPI continues to receive stroke data until it detects a closure event. The TAPI then forms a stroke group entry in the database by grouping all non-gesture stroke data received since the last closure event. The TAPI routes the stroke group data to a character recognizer, which returns candidate characters. The TAPI inserts the candidate characters into the stroke group entry. The TAPI notifies the application program each time it updates the database.
Anderson William Joseph
Anthony Nicos John
Chow Doris C.
Harrison Colin George
Issadisai Tanarug
International Business Machines Corporation
Saunders Raymond H.
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