Patent ID: 8842876
Filing Date: 2014-09-23
Classification: G06K,G06Q,G06T,G07D,G07F,H04L

Abstract:
1. A method of checking authenticity of a printed article, the article conveying hidden data, the method including capturing image data from the article using an imager in a handheld communications device such as a camera-equipped mobile phone, and detecting the hidden data from the captured image data, the method further characterized by generating an audio output comprised of plural audible components, wherein the audible components are dependent on the detected hidden data, so that a user can recognize an authentic article by recognizing a characteristic audio output corresponding thereto, wherein the article conveys first and second hidden data, and the method includes determining orientation of the article by reference to the first hidden data; using the determined orientation in detecting the second hidden data; and processing the second hidden data to generate the audible output.