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AssigneeSIA Technology Corporation
InventorsMohamed Lazzouni, Ali Seyed Kazeroonian, Dariush Gholizadeh, Omar Ali
Estimating the term…
An information recording system includes a writing paper having a writing surface and a prerecorded invisible pattern of pixels associated with the writing surface. Each of the pixels contains encoded, optically readable position information which identifies a coordinate position on the writing surface. The system further includes a pen having a tip and including an instrument for writing on the writing surface and a detector for detecting the position of the tip on the writing surface by optically reading the pixels and obtaining position information when the tip is in contact with the surface. The system further includes a recording unit coupled to the pen and responsive to the position information for electronically recording the position of the pen tip on the writing surface as the markings are made on the writing surface so that the recording unit contains an electronic representation of the markings on the writing surface.
Information recording apparatus for use with an encoded writing surface having a prerecorded pattern of pixels, each of said pixels containing optically readable absolute position information which identifies the location of the pixel on said writing surface, said apparatus comprising:
A writing sheet comprising a writing surface and a prerecorded pattern of pixels associated with the writing surface, each of said pixels containing encoded, optically readable position information which identifies an absolute coordinate position on said writing surface and yet is invisible to a human eye, each of said pixels comprising a first plurality of vertical data lines for encoding an X-coordinate of the pixel and a second plurality of horizontal data lines for encoding a Y-coordinate of the pixel, said data lines having predetermined widths and spacings, one of said first plurality of vertical data lines and said second plurality of horizontal data lines overlying the other in each of said pixels.
A writing sheet comprising a writing surface and a prerecorded pattern of pixels associated with the writing surface, each of said pixels containing encoded, optically readable position information which identifies an absolute coordinate position on said writing surface and yet is invisible to a human eye, each of said pixels comprising a first plurality of vertical data lines for encoding an X-coordinate of the pixel and a second plurality of horizontal data lines for encoding a Y-coordinate of the pixel, one of said first plurality of vertical data lines and said second plurality of horizontal data lines overlying the other in each of said pixels, wherein said vertical data lines are spaced apart and have widths in the range of 50-150 micrometers and wherein said horizontal data lines are spaced apart and have widths in the range of 50-150 micrometers.
Information recording apparatus comprising:
Dependencies are inferred from the claim text.