An electromagnetic induction wireless communication system including: a magnetic antenna; an electric antenna; a tuning capacitor coupled to the magnetic antenna configured to tune the magnetic antenna; a controller configured to control the operation of the communication system; a signal source coupled to the controller configured to produce a communication signal used to drive the magnetic antenna and the electric antenna; a voltage control unit coupled to the signal source configured to produce one of an amplitude difference, phase difference, and an amplitude and a phase difference between the communication signal used to drive the magnetic antenna and electric antenna.

Provided is an antenna module package including a substrate, a wireless card payment antenna structure mounted on the substrate and including a first antenna chip and wireless card payment matching elements electrically connected to the first antenna chip, a near field communication (NFC) antenna structure mounted on the substrate, sharing the first antenna chip, and including an extended NFC antenna loop and NFC matching elements electrically connected to the first antenna chip, and a wireless charging antenna structure mounted on the substrate and including a second antenna chip, and an extended wireless charging antenna loop and wireless charging matching elements electrically connected to the second antenna chip.

A code reading method and a radar system using a short-range millimeter wave (mmWave) radar are provided. The method includes transmitting a mmWave radar signal to a target object from a radar system and receiving a reflection wave signal reflected on the target object, extracting reflection signal strengths for a plurality of line codes constituting the target object from the reflection wave signal, compensating for the reflection signal strengths considering a difference in antenna gain between the plurality of line codes as per an antenna radiation pattern of the radar system, forming a radar image using the compensated reflection signal strengths, and reading a binary code from the radar image.

Personal portable items are subject to potential loss or misplacement by their owners or authorized users. A system and method is operative with personal portable items which are locally associated with a processor, memory, and sensors (either built-in or via attached sensing device). The memory stores environmental parameters which indicate a potential chance or possibility that an item may be lost, stolen, or misplaced in the near-term, proximate future. The stored parameters are customized to the historical or expected uses of the portable item by a particular user or owner in particular, user-specific contexts. The sensors sense the environment of the portable item in real-time. If the sensed environment or sensed item usage matches the environmental parameters which indicate risk of loss or misplacement, an alert element signals the portable item's user, enabling the user to take anticipatory action to prevent item loss. In an embodiment, at least one first portable item of two or more portable items which are both intended to be substantially on-person of an authorized user, is configured to monitor a status of a second other portable item with which it is paired. If the first portable item detects an anomalous status of the second portable item, the first portable item alerts the authorized user that the second item is at risk of being lost, misplaced, or stolen.

A portable item reporting device (PIRD) automatically learns a use of a portable item which is selected by an owner or authorized user of the portable item, where the PIRD is configured to be attached to and in substantial collocation with the selected portable item, or to be integrated into the portable item. The PIRD includes environmental monitors which monitor item location, item movement, and/or other environmental factors. The PIRD detects obtains and analyzes environmental data during usage of the portable item by the authorized user, or during user-designated storage of the portable item in a storage location. The PIRD further identifies and/or learns, based on the detected environmental data, one or more repeated patterns and/or context-determined patterns of usage or physical storage of the user's portable item. The PIRD then stores the past, learned pattern(s) of usage data as indicative of expected and/or normal, future use/storage by the authorized user of the portable item. In some embodiments, the PIRD includes linking elements to ensure that the PIRD remains attached to, and/or in substantial colocation with, a designated portable item of an owner or authorized user.

Provided herein are systems and methods comprising two or more localization agents that are linked together by a linker. For example, provided herein are systems and methods for the placement of two or more linked localization devices within biological systems and the detection of such localization devices for targeted surgeries or other medical procedures. For example, provided herein are systems comprising one or more miniature detectable devices that are linked together, that are placed into a target location and activated by remote introduction of a magnetic field.

A reader device for attachment to a smart device comprising a display, the reader comprising an antenna, processing and reading circuitry, and a communications module, wherein the antenna, the processing and reading circuitry, the processor and the communications module are coupled to each other, and whereby the antenna encloses said display. When a card is tapped on the display, the antenna receives a signal and transmits the signal to the processing and reading circuitry. The processing and reading circuitry processes the signal to produce data, and the produced data is transmitted to a device external to the reader device by the communications module.

A portable item reporting device (PIRD) is configured to detect an individual person's use of conventional consumer eyeglasses. A PIRD includes a microprocessor, memory, one or more environmental detectors (such as optical detectors, motion detectors, cameras, and location detectors, as well as timer elements and possibly calendar elements. With the integrated electronics, the eyeglasses with PIRD may self-identify contexts in which the glasses may be lost, stolen, or misplaced. The eyeglasses with PIRD may also identify when the glasses have been covered over with papers or other objects (such as when set down on a desk), so that the owner of glasses may be at risk of losing or forgetting the glasses. A camera of the glasses may also maintain an ongoing record of user activity when the user is wearing the glasses. The record may aid the user in later identifying other personal items which the user set down and forgot to pick up again.

A reader device for attachment to a smart device comprising a display, the reader comprising an antenna, processing and reading circuitry, and a communications module, wherein the antenna, the processing and reading circuitry, the processor and the communications module are coupled to each other, and whereby the antenna encloses said display. When a card is tapped on the display, the antenna receives a signal and transmits the signal to the processing and reading circuitry. The processing and reading circuitry processes the signal to produce data, and the produced data is transmitted to a device external to the reader device by the communications module.

A portable item reporting device automatically learns a use of a portable item which is selected by an authorized user of the portable item, where the device is configured to be attached to and in substantial collocation with the selected portable item, or to be integrated into the portable item. The portable item reporting device monitors item location, item movement, and/or other environmental factors. The portable item reporting device detects and analyzes environmental data during usage of the portable item by the authorized user, or during user-designated storage of the portable item in a storage location. The device further identifies and/or learns, based on the detected enviromental data, one or more repeated patterns and/or context-determined patterns of usage or physical storage of the user's portable item. The device then stores the past, learned pattern(s) of usage data as indicative of expected and/or normal, future use/storage by the authorized user of the portable item.