Abstract: 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 fitted with an acoustic transmission unit in loose connection by a superficial body contact with a functional object. The information carrier is located inside this functional object, 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 authorization field and product identification.

Abstract: 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 fitted with an acoustic transmission unit in loose connection by a superficial body contact with a functional object. The information carrier is located inside this functional object, 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 authorization field and product identification.

Abstract: A finger ring is provided with an information storage unit (21) and at least two electrically conductive, mutually insulated ring elements that serve as contacts(1). To enable quick and reliable mating of the contacts (1) of the ring with corresponding mating contacts (17) of a control device, the ring contacts (1) have tangential planes (2) which slant toward each other, and the ring contacts (1) can be reached unimpeded only from certain zones spatial regions (8, 10) or adjacent subregion segments(14).