Electronic whiteboard system eraser
AssigneePolyvision Corporation
InventorsStephen Atwood, Bernard Geaghan
Life of this patent
Estimating the term…
Abstract
An eraser for use on an electronic whiteboard with a protrusion area on the erasing surface forming a convex area on the erasing surface for establishing a positive point of contact with the whiteboard; an electronic whiteboard system including such an eraser, a controller for storing data relating to information written on and erased from the whiteboard data, and a filter for preventing the storage of digital data relating to contacts with the whiteboard not attributable to normal writing or erasing actions.
Claims20
An eraser for use on an electronic whiteboard, the eraser comprising:
- an erasing surface including at least one protrusion extending therefrom forming a convex area on the erasing surface.
An eraser for use on an electronic whiteboard, the eraser comprising:
- a body portion;
- an erasing surface on the body portion;
- and
- at least on protruding member forming a convex area on the erasing surface.
An eraser for use on an electronic whiteboard, the eraser comprising:
- a circular shaped erasing surface for eliminating the need to orient the eraser on the whiteboard in a predetermined fashion;
- and
- a protruding convex area centrally located on the erasing surface and having a surface area which is substantially less than the total surface area of the erasing surface.
An eraser for use on an electronic whiteboard, the eraser comprising:
- a body portion made of compliant material and including a recess on one surface thereof;
- a protruding member partially residing within said recess;
- and
- an erasing surface covering said surface of the body portion and the protruding member.
An eraser for use on an electronic whiteboard, the eraser comprising:
- a body portion;
- a protruding member on the body portion;
- and
- an eraser surface on the body portion covering the protruding member.
Dependencies are inferred from the claim text.