Back to results
US 7,065,228 B2Granted
Injection molding process including digital watermarking and articles manufactured from injection molding process
AssigneeDigimarc Corporation
InventorTrent J. Brundage
Life of this patent
Estimating the term…
Abstract
The present invention relates to methods of marking objects produced through a molding process. The marking facilitates authentication of the objects. A cellular phone faceplate is steganographically marked in one implementation of the invention.
Claims36
A method of steganographically marking an object comprising:
- providing a steganographically encoded image, wherein the steganographic encoding is generally imperceptible to a human viewer of the image, but is machine-readable with computer analysis;
- printing the steganographically encoded image onto a print receiving material, the print receiving material comprising a top surface and a bottom surface, wherein the print receiving material receives the print on the bottom surface, and wherein the image is perceptible to a human viewer of the image when viewed through the top surface of the print receiving material;
- providing the printed encoded print receiving material to an injection mold, wherein the bottom surface of the printed encoded print receiving material is positioned so as to be adjacent to a second material to be injected into the mold;
- and
- injection molding the printed encoded print receiving material and the second material.
2 more elements
A component comprising:
- a body comprising:
- a first layer including a top surface and a bottom surface;
- printing providing on the bottom surface of the first layer, wherein the printing conveys an image including steganographic encoding that is generally imperceptible to a human viewer thereof, but is machine-readable with computer analysis, and wherein the image is perceptible to a human viewer when viewed through the top surface of the first layer;
- and
- a second layer adjacently arranged with respect to the bottom layer of the first layer.
2 more elements
A method of marking an object comprising:
- providing a steganographic signal;
- printing the steganographic signal onto a print receiving material, the print receiving material comprising a top surface and a bottom surface, wherein the print receiving material receives the print on the bottom surface, and wherein the printing comprises at least ultraviolet ink;
- providing the printed encoded print receiving material to a mold, wherein the bottom surface of the printed encoded print receiving material is positioned so as to be adjacent to a second material to be provided to the mold;
- and
- molding the printed encoded print receiving material and the second material.
2 more elements
A method of steganographically marking an object comprising:
- providing a steganographically encoded image, wherein the steganographic encoding is general imperceptible to a human viewer of the image, but is machine-readable with computer analysis;
- printing the steganographically encoded image onto a print receiving material, the print receiving material comprising a top surface and a bottom surface, wherein the print receiving material receives the print on the bottom surface, and wherein the image is perceptible to a human viewer of the image as viewed through the top surface of the print receiving material;
- providing the printed encoded print receiving material to a mold, wherein the bottom surface of the printed encoded print receiving material is positioned so as to be adjacent to a second material to be injected into the mold;
- and
- molding the printed encoded print receiving material and the second material.
2 more elements
A method for steganographically marking a molded article comprising:
- providing a transparent substrate, the transparent substrate comprising a top surface and a bottom surface;
- printing an image on the bottom surface of the substrate, wherein the image comprises machine-readable steganographic encoding;
- forming the printed substrate into a three-dimensional shape;
- providing the formed, printed substrate to a mold, the mold including a cavity surface to cooperate with the three-dimensional shape of the formed, printed substrate, wherein the top surface of the substrate is adjacently arranged with respect to the mold cavity surface;
- and
- injecting a molten resin into the mold cavity directly against the bottom surface of the substrate to produce a one-piece, bonded thee-dimensional article.
3 more elements
Dependencies are inferred from the claim text.