A wearable electronic device includes a watch body including a touch-sensitive display configured to receive a first input and a first wireless circuit configured to receive a wireless input signal. The wearable electronic device further includes a band coupled to the watch body and configured to attach the watch body to a user and a wireless module coupled to the band and including an input device configured to receive a second input and a second wireless circuit configured to transmit the wireless input signal to the first wireless circuit in response to receiving the second input.

According to one embodiment, a semiconductor storage device includes a first loop antenna, a second loop antenna, and a controller. The first loop antenna generates a second magnetic field on the basis of electromagnetic induction according to a first magnetic field. The second loop antenna generates an induced electromotive force on the basis of electromagnetic induction according to the second magnetic field. The controller is operable on the basis of the induced electromotive force generated in the second loop antenna, and performs communication with respect to a first external device generating the first magnetic field, through the second loop antenna.

A system for performing payment transactions includes a wearable payment device, such as a finger ring worn by a user, that communicates payment data to a payment reader that uses the payment data in order to request a payment transaction. The system also includes a mobile communication device that receives an input associated with the payment transaction from the user and wirelessly transmits information to the wearable payment device based on the input. The wearable payment device can use the information from the mobile communication device for performing the payment transaction and transmit at least a portion of the information from the mobile communication device to the payment reader during the payment transaction.

A transaction card (smartcard) having a front “continuous” (with no slit) metal layer (ML, FML, 930, 1130) with an opening (912, 1112) for a dual-interface transponder chip module (TCM, 910, 1110) having a module antenna (MA, 911, 1111) on its bond side (not shown). A magnetic shielding layer (MSL, 942, 1142) comprising ferrite material disposed below the front face continuous metal layer. An amplifying element, booster antenna circuit (BAC, 944, 1144) disposed under the magnetic shielding layer. A rear discontinuous metal layer (ML, DML, 950, 1150) with a slit (S, 920, 1120) and a metal ledge (916, 1116) surrounding a module opening (MO, 914, 1114) to function as a coupling frame (CF). A rear plastic layer (960, 1160) formed of non-RF impeding material may capture a magnetic stripe and security elements (signature panel and hologram). A portion of the front face continuous metal layer may protrude downward into the magnetic shielding layer and booster antenna circuit layer. The rear discontinuous metal layer may have an additional slit to regulate the activation distance.

A solenoid valve has an electromagnet with a coil, an RFID tag for identifying the solenoid valve, and an antenna for unidirectional or bidirectional communication with the RFID tag. The antenna is the coil of the electromagnet. Using the coil of an electromagnet for communication with an RFID tag permits inexpensive quality assurance when using solenoid valves, in particular in blow moulding machines.

A noncontact communication medium includes a processing circuit that is mounted on a substrate on which an antenna coil is formed, and has an internal capacitor, and an external capacitor that composes a resonance circuit configured to resonate at a predetermined resonance frequency, along with the internal capacitor and the antenna coil. A method for manufacturing a noncontact communication medium includes measuring a temporary resonance frequency in a state in which the external capacitor is not connected to the processing circuit and in a state in which the processing circuit is connected to the antenna coil, and deciding capacitance of the external capacitor based on a degree of difference between a reference resonance frequency in a case where the noncontact communication medium performs communication with an outside through a magnetic field and a temporary resonance frequency.

An RFID tag includes a first conductor and second conductors that are connected to each other to provide a main portion or all of a coil-shaped conductor or a loop-shaped conductor. Moreover, an RFIC is connected to the second conductors or is electromagnetically coupled to the second conductors. The first conductor includes terminals provided such that an end projects outward from a winding range of the coil-shaped conductor or a loop-shaped conductor while the first conductor is connected to the second conductors.

A combined EAS and RFID circuit includes an HF coil antenna, a UHF tuning loop, and an RFID chip coupled to a strap that includes a first coupling area and a second coupling area. The coil ends of the HF coil antenna are configured to capacitively and/or conductively couple to one or both of the first coupling area or second coupling area of the strap. The HF coil antenna can include a gap between turns for non-interfering placement of the UHF tuning loop. The EAS circuit can be deactivating upon application of a field at the resonant frequency of sufficient intensity to cause the breakdown voltage to be exceeded between a coil end and coupling area. The threshold breakdown voltage between a coil end and a coupling area can be reduced by laser ablation treatment of a conductive surface of one or both of the coil end or coupling area.

Implantable transponders comprising no ferromagnetic parts for use in medical implants are disclosed herein. Such transponders may assist in preventing interference of transponders with medical imaging technologies. Such transponders may optionally be of a small size, and may assist in collecting and transmitting data and information regarding implanted medical devices. Methods of using such transponders, readers for detecting such transponders, and methods for using such readers are also described.

Improved RFID devices and manufacturing methods that utilize more efficient RFID designs, result in less manufacturing material waste and increased recycling opportunities, all without sacrificing RFID device performance, are disclosed herein. Some exemplary embodiments of the improved RFID device may make use of a thinner foil, a hollowed-out foil, a “no-strip” design, or a tessellated design that may reduce material usage. Other exemplary embodiments may use a lower-impact and/or biodegradable adhesive so as to improve aluminum recycling and lessen risks to the environment.