Digital paper

Digital paper is paper which is printed with a grid of small dots to capture handwritten notes by means of a digital pen in a digital form. Handwritten notes on digital paper can be stored in this way in the digital pen and transferred to a computer.

The grid system on which most commercial products are based, was developed by the Swedish company Anoto. The digital paper is printed with a grid of 0.1 mm large dots with a pitch of 0.3 mm. The location of each point varies slightly according to a particular system. An array of 6 by 6 points form a unique coordinate in this system. All possible combinations of the points in this system result in a surface that is larger than Europe and Asia. Anoto awards for areas of this pattern licenses to companies that manufacture digital paper products.

A digital point grid can be printed on any standard paper. Important is that printing is done with at least 600 dpi and with carbonaceous toner. A print with an inkjet printer is not possible, because the dots that the recognition by the pin may become impossible to easily extend the fibers, and. The mine used in the digital pen, however, should be carbon-free. For this purpose there are special approved by Anoto mines. They all carry the logo of Anoto and thus ensure that the pin can not destroy the grid. The infrared camera in the digital pen is based only on the point grid in the background of the page, which reflects infrared radiation.

Developments

By Hewlett Packard a " Forms Automation System" FAS was developed based on the digital paper. September 2005, the development was taken over by the FAS Group. The FAS enables companies to design form processes digital and digital to process the handwritten information on. For this purpose, the system allows the design of digital forms using Acrobat Professional. The user is completely free to make your own forms in a position. For this purpose, a new toolbar in Acrobat was integrated, which allows the user to make a PDF so. If this PDF is printed, the user receives a digital paper that he can describe with the pen. Completed forms are processed by the VAS. It is possible to integrate checkboxes / radio boxes and text fields, so as to enable a digital processing. So digital paper is applicable in almost any environment. But the paper process must be designed.