Abstract: A radio frequency (RF) weak magnetic field detection sensor includes a ferromagnetic core, a pickup coil disposed to surround the ferromagnetic core, a substrate that includes an opening, a core pad connected to the ferromagnetic core and a coil pad connected to the pickup coil, and an insulating tube interposed between the ferromagnetic core and the pickup coil. The insulating tube includes a bobbin around which the pickup coil is wound, and a core hole formed to pass through the bobbin and configured to accommodate the ferromagnetic core.

Abstract: A polymer electrolyte includes a polymer matrix including a polymer having a repeating unit represented by the formula and an ionic liquid. R1 to R3 are each one of a substituted or unsubstituted C1-C12 alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, or combinations thereof. Each R4 is one of hydrogen, a halogen group, a nitrile group, a nitro group, an amine group, a substituted or unsubstituted C1-C10 alkyl group, a substituted or unsubstituted C1-C10 alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted C5-C14 heteroaryl group, or combinations thereof. Substituents of R1 to R4 are each one of a halogen group, a cyano group, a nitro group, a C1-C8 alkyl group, or combinations thereof, x is an integer of 1 to 8, and n is an integer of 60 to 3200.

Abstract: An apparatus and method for transmitting and receiving magnetic field signals in a magnetic field communication system are provided. The apparatus includes a controller configured to generate a communication signal, matching units that are configured to receive the communication signal and that respectively correspond to different matching frequencies, and loop antennas that are connected to the matching units, respectively, and that are configured to convert communication signals according to the different matching frequencies into magnetic transmission signals in the form of magnetic field energy and to transmit the magnetic transmission signals.

Abstract: An electronic device is provided. The electronic device includes a housing, a touch screen display that includes a first edge and a second edge, a microphone, at least one speaker, a wireless communication circuit, a memory, and a processor operably connected with the touch screen display, the microphone, the at least one speaker, the wireless communication circuit, and the memory. The processor is configured to output a home screen including a plurality of application icons in a matrix pattern. The processor is configured receive an input from the first edge to the second edge. The processor is configured output a user interface on the touch screen display that includes a button that allows user to call a first operation and a plurality of cards. To call the first operation the processor is configured to receive a user input, transmit data and receive a response, and perform a task.

Abstract: An electronic device is provided. The electronic device includes a housing, a touch screen display that includes a first edge and a second edge, a microphone, at least one speaker, a wireless communication circuit, a memory, and a processor operably connected with the touch screen display, the microphone, the at least one speaker, the wireless communication circuit, and the memory. The processor is configured to output a home screen including a plurality of application icons in a matrix pattern. The processor is configured receive an input from the first edge to the second edge. The processor is configured output a user interface on the touch screen display that includes a button that allows user to call a first operation and a plurality of cards. To call the first operation the processor is configured to receive a user input, transmit data and receive a response, and perform a task.