Product having encoded authentication writing areas
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 4, 2011
Grant Date -
Dec 25, 2008
app pub date -
Jul 24, 2007
filing date -
May 25, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully