Anordnung und Verfahren zur Energiefernversorgung eines elektronischen Informationsträgers

摘要

Remote energy supply process and system for an electronic information carrier. Known processes and devices do not allow supplying energy wirelessly to an information carrier arranged inside a thick-walled and/or metallic body because energy radiation based on electromagnetic waves hardly penetrates, if at all, such bodies and contactlessly transmitted ultra-sound does not effectively penetrate them. The system consists of a basis apparatus (1) fitted with an acoustic transmission unit (3) in loose connection by a superficial body contact with a functional object (4). The information carrier (5) is located inside this functional object (4), in an acoustically solid connection therewith. This creates a closed, acoustically well coupled total system which ensures an effective energy and information transmission by acoustic means. The invention is applicable for the transmission of codes and information in the electronic entry/access authorisation field and product identification.