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US 5,919,730 AGranted
Copy restrictive documents
AssigneeEastman Kodak Company
InventorsJohn Gasper, James Edward Sutton
Life of this patent
Estimating the term…
Abstract
A media for restricting the copying of a document utilizing one or more microdots that are embedded in said document for providing a non-visual, but machine detectable mark or marks. The detected means for detecting the presence of one or more microdots in said document inhibits a copy machine from copying the document.
Claims39
A copy restrictive medium comprising:
- a support layer;
- at least one light sensitive image-forming layer coated on said support layer;
- and
- a pattern of visually undetectable microdots positioned between said support layer and said at least one image-forming layer;
- wherein said microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
A copy restrictive medium comprising:
- a support layer;
- at least one image-formning layer coated on said support layer;
- and
- a pattern of visually undetectable microdots positioned on said support layer on a surface opposite said at least one image-forming layer;
- wherein said microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
A copy restrictive medium comprising:
- a support layer;
- at least one image-receiving layer coated on said support layer;
- and
- a pattern of visually undetectable microdots positioned between said support layer and said at least one image-receiving layer;
- wherein said microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
A copy restrictive medium comprising:
- a support layer;
- at least one image-receiving layer coated on said support layer;
- and
- a pattern of visually undetectable microdots positioned on said support layer on a surface opposite said at least one image-receiving layer;
- wherein said microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
A copy restrictive medium comprising:
- a support layer;
- at least one image-forming layer coated on said support layer;
- and
- a pattern of visually undetectable yellow microdots positioned between said support layer and said at least one image-forming layer;
- wherein said microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
A copy restrictive medium comprising:
- a support layer;
- at least one image-forning layer coated on said support layer;
- and
- a pattern of yellow microdots, which are visually undetectable, positioned on said support layer on a surface opposite said at least one image-forming layer;
- wherein said microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
A copy restrictive medium comprising:
- a support layer;
- at least one image-receiving layer coated on said support layer;
- and
- a pattern of visually undetectable yellow microdots positioned between said support layer and said at least one image-receiving layer;
- wherein said microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
A copy restrictive medium comprising:
- a support layer;
- at least one image-receiving layer coated on said support layer;
- and
- a pattern of yellow microdots, which are visually undetectable, positioned on said support layer on a surface opposite said at least one image-receiving layer;
- wherein said microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
A copy restrictive photographic medium comprised of:
- a support layer;
- at least one image-forming layer containing radiation sensitive silver halide coated on said support layer;
- and
- a pattern of yellow microdots, which are visually undetectable, positioned between said support layer and said at least one image-forming layer;
- wherein said yellow microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
A copy restrictive thermal transfer imaging receiver medium comprised of:
- a support layer;
- at least one image-forming layer containing radiation sensitive silver halide coated on said support layer;
- and
- a pattern of yellow microdots, which are visually undetectable, positioned between said support layer and said at least one image-forming layer;
- wherein said yellow microdots are detectable by opto-electronic means which are capable of deactivating a printing device.
2 more elements
Dependencies are inferred from the claim text.