A method for forming a medium is provided. A base layer is provided. A material layer is provided with the material layer having a void. A transponder having a memory is positioned in the void. A medium is also provided. The medium has a base layer and a material layer joined to the base layer. The material...http://www.google.fr/patents/US20040062016?utm_source=gb-gplus-shareBrevet US20040062016 - Medium having data storage and communication capabilites and method for forming same
Medium having data storage and communication capabilites and method for ...
