There is described a method of determining an initial transmission phase offset in an NFC device configured to operate in NFC card mode only, wherein the NFC device comprises an NFC chip and a matching circuit. The method comprises: determining an initial RF matching resonance frequency of the NFC device utilizing an internal oscillator of the NFC chip; reading correction data from a non-volatile memory of the NFC chip, the correction data being indicative of a frequency offset of the internal oscillator relative to a nominal oscillator frequency; determining a corrected RF matching resonance frequency of the NFC device based on the initial RF matching resonance frequency and the correction data; and determining the initial transmission phase offset based on the corrected RF matching resonance frequency. Furthermore, a device and a method of manufacturing an NFC device are described.

The order support system includes an information acquisition apparatus for acquiring position information, which is an indicator of a position of a target item whose remaining quantity gradually decreases due to repeated consumption, using near field communication, and at least one processor that is configured to perform support control for automatically ordering the target item based on the position information. The information acquisition apparatus includes an identification tag attached to the target item, and a reader to read the unique information stored in the identification tag. The at least one processor is configured to execute calculating a remaining quantity index value which is an index of the remaining quantity of the target item, based on the position information, and transmitting order information of the target item based on the remaining quantity index value.

In some embodiments, apparatuses and methods are provided herein useful to the sortation of products using a conveyor assembly. In some embodiments, there is provided a system for receiving and sorting products shipped to a shopping facility including: a delivery location at a shopping facility configured to receive a shipment of products; a conveyor assembly comprising: a product identification module configured to read identification data from an identification label disposed on a product; a plurality of sortation modules configured to move the product to one of a predetermined plurality of sortation destination areas; a control circuit operatively coupled to the product identification module and to each of the sortation modules, the control circuit configured to: receive the identification data from the product identification module; determine the sortation destination area for the product based at least on one of shopping facility data and shipping data regarding the product as sortation criteria; and cooperate with the plurality of sortation modules to move the product to the determined sortation destination area.

Methods and systems for providing a digital cart management system for use by customers within a retail location. In use, a customer shops within a retail location and adds items to a digital cart as the customer is adding the items to a physical cart, e.g., at least in part by voice input. When the customer is finished shopping, the customer can checkout via a digital process, thereby bypassing point of sale devices at the retail location.

In accordance with an embodiment, a method includes: transmitting, by a first near-field communication (NFC) device, a field emission burst; comparing a characteristic property of a signal of the field emission burst to a detection threshold; determining a presence of a detection error based on the comparing; and adjusting the detection threshold based on a number of determined detection errors.

A method and an apparatus for improving a reading and writing speed of a contactless card, a terminal device, and a computer-readable storage medium. The method includes: running a driver of a POS terminal; obtaining a communication signal between the driver and an interface chip, in which data to be read and written of the contactless card are obtained by the interface chip according to the communication signal, and wherein data interaction are performed between a card reader on which the interface chip located and the contactless card; obtaining a timing waveform diagram of the driver according to the communication signal; obtaining a running time of the driver according to the timing waveform diagram; modifying the driver to shorten the running time of the driver according to the running time and a preset driver modification rule.

A system and a method for enabling a determination of a location of a tire sensor on a chassis of a vehicle is provided. The method comprises obtaining an identity of a RFID tag located on the rim, or in the tire, of the wheel. The method also comprise obtaining an identity of a tire sensor mounted on the rim, or inside the tire, of the wheel, as the tire sensor is activated. The method further comprise establishing an association between the identity of the RFID tag and the identity of the tire sensor. A computer program product and a carrier are also provided.

There is described an RFID device, comprising: a transmitter, a matching device, and a receiver.

The transmitter is hereby coupled via the matching device to the receiver. The transmitter is configured to transmit a transmitter signal through the matching device, thereby obtaining a calibration signal. The receiver is configured to receive the calibration signal and estimate a phase shift of the calibration signal. Further, the RFID device is configured to adjust at least one of a transmitter phase shift and a receiver phase shift in order to compensate for the estimated phase shift.

Further, a method of calibrating a phase shift in an RFID device is described.

A system for verifying the authenticity of physical goods uses an NFC tag embedded in the product. An NFC reader positioned within range of the tag reads a unique identification number from the tag. The unique identification number may be used to generate an authentication code. During production, the manufacturer generates a blockchain record as a function of the authentication code. The blockchain record includes at least one additional identifier corresponding to the manufacturer. A consumer uses a mobile device to read the NFC tag and obtains the authentication code as a function of the unique identification number. Having the authentication code, the mobile device accesses the record in the blockchain and obtains the identifier corresponding to the manufacturer. Based upon scanning the NFC tag, the consumer is thereby able to obtain an identifier of the manufacturer to ensure authenticity of the product being purchased.

A wearable RFID device is provided for use in an event-based interrogation zone. The zone contains terminals with RFID readers. The device has an element worn by a user and an attached or embedded RFID tag. The tag has stored data representing a UniqueID of the tag, and a stored funds balance. The tag is programmed to activate an otherwise inactive one of said terminals upon presentation of the tag to the RFID reader of said terminal in a first tap, and communicate its UniqueID to the terminal for validation. Upon validation and following a second tap of the tag at the RFID reader, the tag's stored funds balance can be changed by the amount of a transaction run through said terminal. A temporary installation of a system of RFID-based terminals and user-worn RFID devices is also provided for use within an event interrogation zone.