Method and device for determining the authenticity of an object
First Claim
Patent Images
1. A method of determining the authenticity of an object comprising:
- receiving a first code, determining if the object has a three-dimensional pattern of distributed particles, performing a two-dimensional data acquisition for acquisition of a second code from the object, determining the authenticity using the first and second codes.
1 Assignment
0 Petitions
Accused Products
Abstract
An authentication method is provided that is based on a reference object, such as an authentication label attached to an optical disc. The authentication label has a three-dimensional distribution of particles. For the purposes of authentication it is determined whether there is in fact a three-dimensional particle distribution. Next a two-dimensional data acquisition step is performed for the purpose of authentication. This method is particularly useful for copy protection.
33 Citations
34 Claims
-
1. A method of determining the authenticity of an object comprising:
-
receiving a first code, determining if the object has a three-dimensional pattern of distributed particles, performing a two-dimensional data acquisition for acquisition of a second code from the object, determining the authenticity using the first and second codes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An apparatus for determining the authenticity of an object comprising:
-
a receiver for receiving a first code, an optical component for determining if the object has a three-dimensional pattern of distributed particles, a measurement component for performing a two-dimensional data acquisition for acquisition of a second code from the object, a microprocessor for determining the authenticity on the basis of the first and second codes. - View Dependent Claims (18, 19, 20, 21, 22, 23)
-
-
24. A method for providing a first code for use in an authentication method, the method comprising:
-
providing a third code, acquiring a data vector from an object representing a second code, determining a random vector for each one of the bits of the third code on the basis of the second code to provide the first code. - View Dependent Claims (25, 26, 27, 28, 29, 30)
-
-
31. An electronic device for determining the authenticity of an object, the electronic device comprising:
-
means for receiving a first code, means for determining if the object has a three-dimensional pattern of distributed particles, means for performing a two-dimensional data acquisition for acquisition of a second code from the object, means for determining the authenticity on the basis of the first and second codes.
-
-
32. An apparatus for determining the authenticity of an object comprising:
-
a receiver for receiving a first code, an optical component for determining if the object has a three-dimensional pattern of distributed particles, a measurement component for performing a two-dimensional data acquisition for acquisition of a second code from the object, a microprocessor for determining the authenticity on the basis of the first and second codes, wherein the optical component is adapted to determine if the object is reflective.
-
-
33. An apparatus for determining the authenticity of an object comprising:
-
a receiver for receiving a first code, an optical component for determining if the object has a three-dimensional pattern of distributed particles, a measurement component for performing a two-dimensional data acquisition for acquisition of a second code from the object, a microprocessor for determining the authenticity on the basis of the first and second codes, wherein the optical component is adapted to illuminate the object with diffused, white light, detect light reflected from the object and light transmitted through the object for determining if the reflected light and the transmitted light have complimentary colours.
-
-
34. An apparatus for determining the authenticity of an object comprising:
-
a receiver for receiving a first code, an optical component for determining if the object has a three-dimensional pattern of distributed particles, a measurement component for performing a two-dimensional data acquisition for acquisition of a second code from the object, a microprocessor for determining the authenticity on the basis of the first and second codes, wherein the first code comprises a set of random vectors and the second code is a data vector, the random vectors being pseudo random, and further comprising a pseudo random number generator for generating the random vectors on the basis of a seed value.
-
Specification