Asymmetric watermark embedding/extraction
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 17, 2013
Grant Date -
Jan 10, 2013
app pub date -
Sep 4, 2012
filing date -
Apr 26, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Methods and devices are provided to embed imperceptible watermarks into a host content and to subsequently extract embedded watermarks in a manner so as to achieve desired levels of robustness, transparency and security. For a particular host content, a first number of embedding opportunities are used to insert watermarks, which is less than a number of all embedding opportunities within the host content. Watermarks are extracted from a first number of watermark extraction opportunities, which is less than a number of all watermark extraction opportunities associated with the host content. The relationship between the first number of embedding opportunities, the first number of watermark extraction opportunities and the number of all watermark extraction opportunities is such that a circumvention attempt that overwrites watermarks at all extraction opportunities degrades perceptual quality of the host content below a desired perceptual quality level.
First Claim
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Family
International Classification(s)
- 2012 Application Filing Year
- H04N Class
- 12349 Applications Filed
- 10702 Patents Issued To-Date
- 86.67 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 17, 2025 |
