Size variant pressure eraser
AssigneeMicrosoft Corporation
InventorThomas Russo
Life of this patent
Estimating the term…
Abstract
A method of adjusting the size of an area to be deleted in a pen-based computing system is provided. An electronic pen may include an eraser end. The eraser end may be used to contact the display surface of a computer system. Application of pressure to the display through the eraser end of the electronic pen may result in the deletion of the text indicated by the position of the electronic pen. As additional pressure is applied, the size of the area to be deleted increases. The invention provided may be used with both pixel type and stroke type erasing systems and provides an efficient and accurate method of deleting electronic ink.
Claims20
A method of removing electronic ink from a display, comprising:
- receiving user input indicating an ink erasure action, wherein the user input includes contacting a stylus with a digitizer;
- determining a contact pressure between the stylus and the digitizer;
- and
- setting an eraser width based, at least in part, on the contact pressure.
A method of removing electronic ink from a display, comprising:
- receiving a first user input, wherein the first user input comprises first pressure information;
- identifying a first removal area, wherein a size of the first removal area is defined by the first pressure information;
- receiving a second user input, wherein the second user input comprises a second pressure information;
- and
- modifying the size of the first removal area based on the second pressure information.
A system of erasing electronic ink, comprising:
- a user interface including a display screen and a digitizer;
- an electronic pen including a housing, a writing end and a non-writing end;
- a pressure sensing system, configured to determine the amount of pressure applied to the electronic pen;
- and
- a processor for determining a size of an electronic ink removal area based on a first pressure and a second pressure received via the user input device.
Dependencies are inferred from the claim text.