Methods and tangible objects employing machine readable data in photo-reactive materials
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 25, 2007
Grant Date -
Aug 9, 2007
app pub date -
Jan 10, 2007
filing date -
Sep 11, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates generally to steganography and data hiding. In one implementation we provide a method including: obtaining auxiliary data; providing a mask for a photo-reactive material, the mask corresponding at least in part to the auxiliary data; and exposing the material through the mask to steganographically impart the auxiliary data in the photo-reactive material. The auxiliary data is machine-readable from the exposed material. In another implementation the material is exposed through photolithographic illumination. Of course, other implementations are described and claimed as well.
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