US 12,190,189 B2
Passive radio transmission device
Norbert Knapich, Rosshaupten (DE)
Assigned to AEG Identifikationssysteme GmbH, Ulm (DE)
Appl. No. 17/605,641
Filed by AEG Identifikationssysteme GmbH, Ulm (DE)
PCT Filed Apr. 17, 2020, PCT No. PCT/EP2020/060814
§ 371(c)(1), (2) Date Feb. 2, 2022,
PCT Pub. No. WO2020/216683, PCT Pub. Date Oct. 29, 2020.
Claims priority of application No. 10 2019 110 509.9 (DE), filed on Apr. 23, 2019.
Prior Publication US 2022/0215219 A1, Jul. 7, 2022
Int. Cl. G06K 19/077 (2006.01); E05B 19/00 (2006.01); G06K 19/04 (2006.01); G07C 9/00 (2020.01); H01Q 1/22 (2006.01); H01Q 7/00 (2006.01)
CPC G06K 19/0776 (2013.01) [E05B 19/0052 (2013.01); G06K 19/048 (2013.01); G07C 9/00944 (2013.01); H01Q 1/2208 (2013.01); H01Q 7/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A mechanical key comprising a passive radio transmission device disposed on a front side and a rear side of an electrically conductive carrier plate that is a key bow of the mechanical key,
wherein the radio transmission device comprises, on the front side of the carrier plate, a first foil having a first antenna and a microchip coupled with the first antenna and, on the rear side, a second foil having a second antenna,
wherein the first foil is connected with the second foil via a flexible web, which is routed around an end face of the carrier plate connecting the front side with the rear side, so that the second antenna is connected with the first foil via at least one connecting line running along the flexible web, in order to transmit information from the microchip both on the basis of the first antenna and of the second antenna, and
wherein the first foil, the second foil and the flexible web are combined as one component part.