Linking of computers based on steganographically embedded 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.
Claims19
A method of initiating access to a computer via a data communications medium, the method comprising:
- receiving artwork corresponding to an object to be printed, the artwork including text and background;
- steganographically embedding into a region of said background having substantially non-uniform pixel values certain information indicative of an address associated with said computer;
- and
- printing said object using the artwork into which said information has been steganographically embedded.
A physical object printed on a substrate and including text and background, at least the background having a plural-bit code steganographically embedded therein, said code being an index to a data structure that specifies address information of a computer resource that is to be associated with said object, wherein at least a portion of said background has substantially non-uniform pixel values, and has said plural-bit code steganographically embedded therein.
A method of initiating access to a computer via a data communications medium, the method comprising:
- creating a data object with information indicative of an address associated with the computer;
- steganographically embedding the data object in a second object comprising at least one of audio and visual data, said embedding occurring in-band within said audio or visual data, rather than in a part of said second object not intended for presentation to a user;
- decoding from the second object the steganographically embedded data object;
- and
- initiating a link to the computer using the address in the decoded data object.
A method of initiating access to a computer via a data communications medium, the method comprising:
- creating a data object with information indicative of an address associated with the computer;
- steganographically embedding the data object in a second object comprising at least one of audio and visual data, said embedding extending generally throughout a sampled representation of said second object, rather than localized in a particular portion thereof, wherein the complete data object can be recovered from an excerpt of said second object and used to initiate a link to the computer.
A method of initiating access to a computer via a data communications medium, the method comprising:
- receiving data corresponding to an audio object, said object comprising audio data and having information indicative of an address associated with the computer steganographically embedded in-band within said audio data;
- decoding the information from said audio object;
- and
- initiating a link to the computer using said information.
Dependencies are inferred from the claim text.