Paper products and physical objects as means to access and control a computer or to navigate over or act as a portal on a network
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 26, 2011
Grant Date -
Jan 20, 2005
app pub date -
Jan 23, 2004
filing date -
Nov 16, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The claimed invention relates generally to steganography and watermarking. One claim recites: a method including: using an electronic application program to compose an electronic version of a document; providing the document onto a substrate, the provided substrate being steganographically encoded with plural-bit auxiliary data, the steganographically encoded plural-bit auxiliary data is substantially imperceptible to casual human inspection, but is detectable through visible light imaging of the document and processing of image data thereby produced; and storing at least some of the plural-bit auxiliary data in association with data identifying a location at which the electronic version of the document is stored. Of course, other combinations are provided and claimed as well.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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