A wireless connection is established between at least two electronic modules (M1, M2) disposed separate from one another in a smartcard having a coupling frame so that the two modules may communicate (signals, data) with each other. The two modules may each have module antennas (MA-1, MA-2), and may be disposed in respective two openings (MO-1, MO-2) of a coupling frame (CF). A coupling antenna (CPA) having two coupler coils (CC-1, CC-2) disposed close to the two modules antennas of the two modules. The coupling antenna may have only the two coupler coils (CC-1, CC-2), connected with one another, without the peripheral card antenna (CA) component of a conventional booster antenna (BA). Energy harvesting is disclosed.

An example disclosed method for authenticating a radio frequency identification (“RFID”) tag includes receiving a first signal including a first transponder identifier associated with the RFID tag; receiving a second signal including a second transponder identifier, wherein the second transponder identifier is associated with a different transponder than the first transponder identifier; and determining, with circuitry, whether the second transponder identifier is associated with the RFID tag.

A set of smart card wallets with a set of smart chips for compact use comprising a body adapted to hold more than one smart chip and a set of coils associated with the set of smart chips for communicating information associated with an account from the set of smart chips.

A method of configuring a contactless communication device is provided. The contactless communication device includes integrated circuits hosting at least two applications compatible with the same communication protocols or compatible with the same communication protocol and using different communication parameters and a contactless communication circuit. The method includes detecting, by the contactless communication circuit, an interruption of a transaction initiated by a proximity coupling reader.

Provided is a system, method, and multi-positional switch using a passive wireless tag to communicate with a wireless tag reader. The wireless tag including: a first set of one or more half-antennas; a second set of one or more half-antennas; and a first set of two or more wireless chips and an electrical contact connected to an open end of each of the wireless chips, each of the wireless chips including data stored thereon, and when one of the electrical contacts completes an antenna circuit including one of the first set of half-antennas and one of the second set of half antennas, the wireless tag reader energizes the completed antenna circuit and the completed antenna circuit transmits the data stored on the wireless chip connected to the electrical contact that is completing the antenna circuit to the wireless tag reader.

A wireless connection is established between at least two electronic modules (M1, M2) disposed separate from one another in a smartcard having a coupling frame so that the two modules may communicate (signals, data) with each other. The two modules may each have module antennas (MA-1, MA-2), and may be disposed in respective two openings (MO-1, MO-2) of a coupling frame (CF). A coupling antenna (CPA) having two coupler coils (CC-1, CC-2) disposed close to the two modules antennas of the two modules. The coupling antenna may have only the two coupler coils (CC-1, CC-2), connected with one another, without the peripheral card antenna (CA) component of a conventional booster antenna (BA). Energy harvesting is disclosed.

Devices and methods are disclosed related to Radio Frequency Identification (RFID) tags and RFID Integrated Circuit (IC). In some embodiments, the RFID tags are configured to facilitate the changing of the RFID tag values read without having to reprogram the data stored in the memory of the Integrated Circuits (“ICs”) associated with the RFID tags. In one embodiment, a RFID tag is provided with multiple ICs and the configuration of antennas associated with the ICs causes interference so that only certain ICs are active at a given time. In another embodiment, a RFID tag having multiple substrates and ICs, and a blocking material, is configured to effectively inactivate some of the ICs until the blocking material is removed. In some embodiments, couplings external to the RFID ICs are provided to change the RFID tag value read when the couplings are uncoupled. In one embodiment, a method of managing tags with multiples ICs is disclosed.

Provided are approaches for providing multiple user accounts in a same transaction card assembly. The transaction card assembly may include a first card including a first card first side opposite a first card second side, the first card first side including a first pair of magnetic stripes and the first card second side including a first pair of identification chips. The transaction card assembly may further include a second card coupled to the first card, the second card including a second card first side opposite a second card second side, the second card first side including a second pair of magnetic stripes, and the second card second side including a second pair of identification chips. The first and second cards are slidable relative to one another between multiple positions to selectively expose and cover each identification chip of the first and second pairs of identification chips.

Provided is a system, method, and multi-positional switch using a passive wireless tag to communicate with a wireless tag reader. The wireless tag including: a first set of one or more half-antennas; a second set of one or more half-antennas; and a first set of two or more wireless chips and an electrical contact connected to an open end of each of the wireless chips, each of the wireless chips including data stored thereon, and when one of the electrical contacts completes an antenna circuit including one of the first set of half-antennas and one of the second set of half antennas, the wireless tag reader energizes the completed antenna circuit and the completed antenna circuit transmits the data stored on the wireless chip connected to the electrical contact that is completing the antenna circuit to the wireless tag reader.

Provided are approaches for providing multiple user accounts in a same transaction card assembly. The transaction card assembly may include a first card including a first card first side opposite a first card second side, the first card first side including a first pair of magnetic stripes and the first card second side including a first pair of identification chips. The transaction card assembly may further include a second card coupled to the first card, the second card including a second card first side opposite a second card second side, the second card first side including a second pair of magnetic stripes, and the second card second side including a second pair of identification chips. The first and second cards are slidable relative to one another between multiple positions to selectively expose and cover each identification chip of the first and second pairs of identification chips.