Product having encoded authentication writing areas

Details Product having encoded authentication writing areas Product having encoded authentication writing areas

2011-01-04

2011-01-04

Abdulselam, Abbas I (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C178S018030, C382S119000

Reexamination Certificate

active

07864162

ABSTRACT:
A product is provided which has a plurality of coded tags and at least one authentication writing area defined by at least some of the coded tags for receiving handwritten authentication information from a sensing device operated by a user. Each coded tag encodes coordinates for a point on a tag map and an orientation feature. The orientation features enable the sensing device to determine a planar orientation of each tag relative to a yaw of the sensing device.

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