System, method and program for generating data for printing invisible information, and method of manufacturing physical medium whereupon invisible information is printed

A method for obtaining additional information associated with an article in a book, said method comprising:

• emitting light of a specific wavelength in a manner that directs the light onto invisible information written in the book in invisible ink, said specific wavelength of light interacting with the invisible ink to illuminate the invisible information to become visible, said emitting being performed by a light-emitting element of a cellular phone, said invisible information comprising a Universal Resource Locator (URL) of an address of a web server at which the additional information is located, said URL being encoded in a code within the invisible information;
• taking a picture, by a digital camera comprised by the cellular phone, of the illuminated invisible information to capture an image of the code into the cellular phone;
• storing the captured image in a memory of the cellular phone;
• decoding the code in the stored image to identify the URL, said decoding being performed by a processing function of the cellular phone;
• and
• downloading the additional information from the web server to a display of the cellular phone, said downloading being performed by an accessing function of the cellular phone to access the website through transmission of the decoded URL to a base station that couples the cellular phone to the web site via the Internet.

A cellular phone configured to be used by an operator, said cellular phone comprising:

• a light-emitting element configured to emit light of a specific wavelength for illuminating invisible information in an object to make the invisible information visible, wherein the object is a book, and wherein the cellular phone is configured to perform a method for obtaining additional information associated with an article in the book through use of invisible information written in the book in invisible ink, wherein the light-emitting element is configured to emit the light of the specific wavelength in a manner that directs the light onto the invisible information written in the book in the invisible ink, said specific wavelength of light interacting with the invisible ink to illuminate the invisible information to become visible, said emitting being performed by the light-emitting element, said invisible information comprising a Universal Resource Locator (URL) of an address of a web server at which the additional information is located, said URL being encoded in a code within the invisible information, said URL being decoded by decoding the code in the stored image to identify the UR and downloading the additional information from the web server to a display of the cellular phone, said downloading being performed by an accessing function of the cellular phone to access the website through transmission of the decoded URL to a base station that couples the cellular phone to the web site via the Internet;
• a digital camera configured to take a picture, of the illuminated invisible information to capture an image of the code;
• and
• a memory for storing the captured image in the memory of the cellular phone;