Adaptive virtual keyboard for handheld device

摘要

In various embodiments, the size, shape, and arrangement of keys on a virtual keyboard may be determined based on touchscreen contacts made by the user. Further, the actual contact patch made by the user may be analyzed to interpret which point of contact was intended, and other factors such as spelling and context may also be considered. These factors may be determined based on a calibration session and/or on continuing inputs during operation of the keyboard, and applied to future operational interpretations of the touchscreen contacts.

主权项

1. A handheld electronic device, comprising:
a touchscreen for displaying a virtual keyboard, the virtual keyboard having a plurality of rows of keys, the handheld electronic device including assumptions about the shape and orientation for a contact patch for each row of keys of the plurality of rows, wherein the handheld electronic device is to:
sense a touch on the touchscreen of the handheld electronic device, wherein sensing the touch includes sensing a contact patch for the touch on the touchscreen;determine a location of a centroid for the contact patch of the touch; anddetermine a location of an active point for the contact patch; wherein the location of the active point is different than the location of the centroid; and wherein determination of the location of the active point for the touch includes consideration of the contact patch and the assumptions about the shape and orientation for a contact patch for each row of keys of the plurality of rows.