Linking of computers based on optical sensing of digital data
AssigneeDigimarc Corporation
InventorGeoffrey B. Rhoads
Life of this patent
Estimating the term…
Abstract
A printed object, such as an item of postal mail, a book, printed advertising, a business card, product packaging, etc., is steganographically encoded with plural-bit data. When such an object is presented to an optical sensor, the plural-bit data is decoded and used to establish a link to an internet address corresponding to that object.
Claims23
A method comprising:
- presenting a digitally encoded object to an optical sensor, the optical sensor producing output data;
- decoding plural-bit data from the sensor output data;
- and
- using said plural-bit data to establish a link to an internet address having data relating to said object;
- wherein the object is steganographically encoded with said plural-bit data.
A method of initiating access to a computer via a data communications medium, the method comprising:
- receiving data corresponding to an object, said object comprising visual data and having information indicative of an address associated with the computer steganographically embedded in-band within said visual data;
- decoding the information from said object;
- and
- initiating a link to the computer using said information;
- said decoding and initiating being performed by the same device.
A method of initiating access to a computer via a data communications medium, the method comprising:
- receiving data corresponding to an object, said object comprising visual data and having information indicative of an address associated with the computer steganographically embedded in-band within said visual data;
- decoding the information from said object;
- and
- initiating a link to the computer using said information;
- wherein said receiving comprises receiving said object from a digital storage or transmission medium in digital form, without said object having being rendered in human-perceptible form since being steganographically embedded.
A method of initiating access to a computer via a data communications medium, the method comprising:
- receiving data corresponding to an object, said object comprising visual data and having information indicative of an address associated with the computer steganographically embedded in-band within said visual data;
- decoding the information from said object;
- and
- initiating a link to the computer using said information;
- wherein said visual data includes plural samples, said steganographically embedded information extending generally throughout said samples, rather than localized in one or more particular portions thereof, wherein the information can be decoded from an excerpt of said visual object and used to initiate the link to the computer.
A method of initiating access to a computer via a data communications medium, the method comprising:
- receiving image data corresponding to a printed object, the printed object including both text and background, at least the background having information indicative of an address associated with the computer steganographically embedded therein;
- decoding the information from said image data;
- and
- initiating a link to the computer using said information.
Dependencies are inferred from the claim text.