Passive radio transmission device
AssigneeAEG Identifikationssysteme GmbH
InventorNorbert KNAPICH
Life of this patent
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Abstract
A passive radio transmission device is arranged on a front and a back of an electrically conductive carrier plate, wherein the radio transmission device includes, on the front of the carrier plate, a first film having a first antenna and having a microchip coupled to the first antenna and, on the back, a second film having a second antenna, wherein the first film is coupled to the second film via a flexible web, routed around an end face of the carrier plate, that connects the front to the back, so that the second antenna is connected to the first film via at least one connecting line running along the web in order to transmit information from the microchip using both the first antenna and the second antenna, wherein the first film, the second film and the web are combined as one component.
Claims15
A passive radio transmission device (FU), which is disposed on a front side (SE) and a rear side (SZ) of an electrically conductive carrier plate, wherein the radio transmission device (FU) comprises, on the front side (SE) of the carrier plate, a first foil (FE) having a first antenna (AE) and a microchip (MC) coupled with the first antenna (AE) and, on the rear side (SZ), a second foil (FZ) having a second antenna (AZ), wherein the first foil (FE) is connected with the second foil (FZ) via a flexible web (ST), which is routed around an end face of the carrier plate connecting the front side (SE) with the rear side (SZ), so that the second antenna (AZ) is connected with the first foil (FE) via at least one connecting line running along the web (ST), in order to transmit information from the microchip (MC) both on the basis of the first antenna (AE) and of the second antenna (AZ), wherein the first foil (FE), the second foil (FZ) and the web (ST) are combined as one component part.
A passive radio transmission device (FU), which comprises, on the first foil (FE) or on the second foil (FZ), an energy reservoir (KO), which feeds the microchip (MC) with electrical energy.
A method for retrofitting a mechanical key (SC), comprising the steps:
- Provision of a mechanical key (SC), which with respect to its function is adapted to a locking system,
- Provision of a passive radio transmission device (FU), which comprises a first foil (FE) having a first antenna (AE) and a microchip (MC) coupled with the first antenna (AE), and a second foil (FZ) having a second antenna (AZ), wherein the first foil (FE) is connected to the second foil (FZ) via a flexible web (ST),
- Disposing the first foil (FE) of the radio transmission device (FU) on a front side (SE) of a key bow (SR) of the mechanical key (SC),
- Disposing the second foil (FZ) of the radio transmission device (FU) on the rear side (SZ) of the key bow (SR) of the mechanical key (SC), wherein the first foil (FE) is connected with the second foil (FZ) via a flexible web (ST), which is routed around an end face of the key (SC) connecting the front side (SE) with the rear side (SZ), so that the second antenna (AZ) is connected with the first foil (FE) via at least one connecting line running along the web (ST), in order to transmit information from the microchip (MC) both on the basis of the first antenna (AE) and of the second antenna (AZ), and
- Programming the microchip (MC) of the passive radio transmission device (FU) with an access authorization.
Dependencies are inferred from the claim text.