Composite information bearing devices
AssigneeInfotoo International Limited
InventorsTak Wai Lau, Wing Hong Lam
Life of this patent
Estimating the term…
Abstract
A composite information bearing device comprising an image pattern and a human readable data device. The human readable data device includes a set of human readable data symbols representing a first set of data. The first set of data includes a first data portion and a second data portion. The image pattern represents a second set of data and comprises a third data portion. One of the first or said second data portions is to form an identification code upon combination or concatenation with said third data portion, and the other one of said first or said second data portions not forming part of said identification code is to form a verification code, the verification code being related to said identification code by a scheme of operation.
Claims20
1) A composite information bearing device comprising an image pattern and a human readable data device, wherein the image pattern and the human readable data device are devised to define a set of security features and are affixed on a medium for long-term or permanent readability by a machine;
- wherein the human readable data device comprises a set of human readable data symbols representing a first set of data, the first set of data comprising a first data portion and a second data portion;
- wherein the image pattern is encoded with a second set of data by a scheme of digital encoding, and the second set of data comprises a third data portion;
- and wherein one of said first data portion or said second data portion is to combine, operate or concatenate with said third data portion to form an integrated identification code, and the other one of said first or said second data portions not forming part of said identification code is to form a verification code, said verification code being related to said identification code by a scheme of operation;
- and wherein the identification code and the verification code are to cooperate to define a set of security features for machine-based verification of authenticity of information carried by the composite information bearing device.
14) A method of identifying an identification device which comprises a composite information bearing device, wherein the composite information bearing device comprises an image pattern and a human readable data device, wherein the human readable data device comprises a set of human readable data symbols representing a first set of data, the first set of data comprising a first data portion and a second data portion;
- wherein the image pattern represents a second set of data and comprises a third data portion;
- and wherein one of said first or said second data portions is to form an identification code upon combination or concatenation with said third data portion, and the other one of said first or said second data portions not forming part of said identification code is to form a verification code, said verification code being related to said identification code by a scheme of operation, wherein the method comprises:—
- a. obtaining an image of said composite information bearing device,
- b. processing said image to recover said third data portion, wherein said third data portion comprises a plurality of data components and the data components are covertly embedded in said image pattern, wherein the data components are arranged in a sequence having a relative sequence order of the data components to form an ordered sequence and the sequence order is not explicit or perceivable from said image pattern, and wherein spatial properties of each data component are spread throughout the entire image pattern;
- c. processing said third data portion with data portions of the human readable device;
- d. forming said identification code and said verification code, and
- e. determining relationship between said identification code and said verification code and provide outcome of determination.
18) An apparatus comprising an image acquisition device, data storage device, and a solid-state processor, wherein the processor is to execute stored instructions to operate said image acquisition device to capture an image of a target authentication device and to store said image in the data storage device for display on a display screen, wherein the authentication device comprises a human readable data device and a data coded image pattern, wherein the human readable data device comprises a set of human readable data symbols representing a first set of data, the first set of data comprising a first data portion and a second data portion;
- wherein the image pattern is formed by digital coding of a second set of data and the second set of data comprises a third data portion;
- wherein one of said first data portion or said second data portion is to form an identification code with said third data portion by linear combination or concatenation, and the other one of said first or said second data portions not forming part of said identification code is to form a verification code, said verification code being related to said identification code by a scheme of operation;
- wherein the processor is execute stored instructions:
- to form an identification code by linear combination, concatenation or processing of one of said first data portion or said second data portion with said third data portion, wherein said third data portion comprises a plurality of data components, each data component having spatial properties spread throughout the image pattern;
- and wherein the data components are arranged in an order sequence, and order of the sequence is determined according by the stored instructions and not explicit or perceivable from the image pattern;
- to extract the verification code by extracting the other one of said first data portion or said second data portion of said human readable data device,
- by compare the identification code and the verification code to determine whether the identification code and the verification code are related by a predetermined scheme of operation, and
- to output outcome of determination.
Dependencies are inferred from the claim text.