Magic slate capture and display device
AssigneeHewlett-Packard Development Company, L.P.
InventorBarry Bronson
Life of this patent
Estimating the term…
Abstract
A device for forming erasable images on a reusable medium, comprising: an erasing portion; and a writing portion; wherein the erasing portion comprises a separator for separating at least two layers of the reusable medium; and wherein the writing portion comprises automatic machine-driven pressure applicators for applying pressure but no ink to the reusable medium, thereby forming an image on the reusable medium.
Claims10
A device for forming erasable images on a reusable medium, comprising:
- an erasing portion;
- and
- a writing portion;
- wherein said erasing portion comprises a separator for separating two layers of said reusable medium;
- and
- wherein said writing portion comprises automatic pressure applicators designed to apply variable pressure but no ink to said reusable medium in a direction substantially perpendicular thereto, said pressure being varied to control image characteristics, thereby forming an image on said reusable medium;
- wherein each of said automatic pressure applicators is aligned with a different region within a plurality of regions of said reusable medium.
A device for forming erasable images on a reusable medium, comprising:
- an erasing portion;
- and
- a writing portion;
- wherein said erasing portion comprises a separator for separating two layers of said reusable medium;
- and
- wherein said writing portion comprises automatic pressure applicators for applying pressure but no ink to said reusable medium, thereby forming an image on said reusable medium;
- wherein said pressure applicators apply gas pressure.
A device for forming erasable images on a reusable medium, comprising:
- an erasing portion;
- and
- a writing portion;
- wherein said erasing portion comprises a separator for separating two layers of said reusable medium;
- and
- wherein said writing portion comprises automatic pressure applicators for applying pressure but no ink to said reusable medium in a direction substantially perpendicular thereto, thereby forming an image on said reusable medium;
- wherein each of said applicators is aligned with a different region within a plurality of regions of said reusable medium;
- and
- wherein said device further comprises a controller for controlling the pressure applicators and including a calibration module that controls the application of pressure by said pressure applicators based on a detected characteristic.
A device for forming erasable images on a reusable medium, comprising:
- an erasing portion;
- and
- a writing portion;
- wherein said erasing portion comprises a separator for separating two layers of said reusable medium;
- and
- wherein said writing portion comprises automatic pressure applicators for applying pressure but no ink to said reusable medium in a direction substantially perpendicular thereto, thereby forming an image on said reusable medium;
- wherein each of said applicators is aligned with a different region within a plurality of regions of said reusable medium;
- and
- wherein said device further comprises a controller for controlling the pressure applicators and including a calibration module for aligning said pressure applicators relative to said reusable medium based on detected characteristics.
Dependencies are inferred from the claim text.