Digital watermarking systems
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 13, 2007
Grant Date -
N/A
app pub date -
May 1, 2000
filing date -
May 1, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A variety of systems responsive to watermarked documents are detailed. In one, watermarking is employed to facilitate e-commerce transactions. More particularly, watermarking is employed to assure that an on-line purchaser of goods has physical custody of the credit card being charged. Without such custody, the requested transaction will be refused by the credit card issuer.
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