Linking of computers based on steganographically embedded digital data
First Claim
Patent Images
1. 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.
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Accused Products
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.
574 Citations
19 Claims
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1. A method of initiating access to a computer via a data communications medium, the method comprising:
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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.
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- 2. 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.
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4. A method of initiating access to a computer via a data communications medium, the method comprising:
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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. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of initiating access to a computer via a data communications medium, the method comprising:
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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. - View Dependent Claims (15, 16)
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17. A method of initiating access to a computer via a data communications medium, the method comprising:
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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. - View Dependent Claims (18, 19)
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Specification