Method for Generating a Temporally Threaded CMI Watermark
AssigneeWarped Prism Limited Liability Company
InventorDavid G. Grossman
Life of this patent
Estimating the term…
Abstract
Disclosed is a method for generating a temporally threaded copyright management information watermark where fragile watermarks containing CMI are spread throughout a digital work temporally. In one embodiment of this invention, the copyright management information is divided into a multitude of copyright management information subparts; the copyright management subparts are applied to fragile sub-watermarks; and fragile watermarks are applied to temporally separated portions of the digital work.
Claims20
A method for apply a temporally threaded copyright management information watermark to a digital work comprising:
- a) dividing, using a processor, said “digital work” into a multitude of temporally separated portions;
- b) dividing copyright management information into a multitude of copyright management information sub-parts;
- and
- c) spreading said “copyright management information” across said “digital work” by at least twice:
- i) applying at least one of said “multitude of copyright management information subparts” to at least one of a multitude of fragile sub-watermarks;
- and
- ii) embedding said “at least one of a multitude of fragile sub-watermarks” in at least one of said “multitude of temporally separated portions.”
Dependencies are inferred from the claim text.