Patent ID: 7738150

Claim:
A system for providing digital handwriting recognition, the system comprising: a memory storage; and a processing unit coupled to the memory storage, wherein the processing unit is configured to: read a first channel of a multichannel hologram, the first channel comprising a first set of encoded patterns; extract first content data stored in the first channel, the first content comprising a first read portion of the first set of encoded patterns and a first coordinate position within the first channel; determine whether a relative angle between the multichannel hologram and an optical device has changed more than a threshold amount, the optical device comprising an electronic pen operative to read the multichannel hologram; when the relative angle between the multichannel hologram and the optical device has changed more than the threshold amount, read at least one second channel of the multichannel hologram, the at least one second channel being determinable by an amount of change in the relative angle between the multichannel hologram and the optical device; extract second content data stored in the at least one second channel, the second content data comprising a second read portion of a second set of encoded patterns stored in the at least one second channel and a second coordinate position within the second channel; and determine an authentic digital handwriting based upon a comparison of the extracted first content data, the extracted second content data, and a known handwriting, the determination including a history of variations in the relative angle between the multichannel hologram and the optical device.