Aspects of the present disclosure include methods, systems, and non-transitory computer readable media for transmitting at least one incident radio frequency identification (RFID) signal to a RFID tag attached to a merchandize item, receiving at least one reflected RFID signal from the RFID tag, determining a frequency response of the RFID tag based on the at least one reflected RFID signal, comparing the frequency response to a plurality of baseline frequency responses, and determining a state of the RFID tag based on the comparing.

The game table reading system comprises reading antennas for each of a plurality of reading areas of a game table, read-restriction antennas for each of the plurality of the reading areas, the read-restriction antennas restricting the RFID tag embedded in a game token placed in the corresponding reading area from being read by the reading antenna corresponding to the other adjacent reading areas, a reading control device that controls the reading antennas, and a read-restriction control device that controls the read-restriction antennas. The read-restriction control device causes the read-restriction antennas corresponding to the reading areas adjacent to the reading areas corresponding to the reading antenna that the reading control device causes to read, in synchronization with the reading control device.

A wireless tag communication device includes a communication interface device configured to communicate with a wireless tag attached to or included in a sheet conveyed along a conveyance direction in a printer, and a controller configured to acquire light reception information indicating a time period in which light emitted towards the sheet has been blocked by the wireless tag during conveyance of the sheet, compare the acquired light reception information to reference information and determine a direction of the wireless tag with respect to the conveyance direction, determine a polarization direction of a radio wave to be transmitted to the wireless tag based on the determined orientation direction of the wireless tag, and control the communication interface device to transmit to the wireless tag the radio wave having the determined polarization direction.

A scanning device includes: a motion sensor to detect motion imparted to the scanning device; a distance detector to determine a distance between the scanning device and a surface; an infrared detector to capture a temperature of the surface; an image sensor to capture an image of an indicia encoding data on the surface; and a processor configured to store the captured image and temperature, configured to operate the motion sensor to detect motion being imparted to the scanning device when in a low power state, and configured to transition the scanning device out of the low power state in response to such imparted motion by: operating the distance detector to determine the distance to the surface; and determining whether to operate the infrared detector to capture the temperature of the surface and whether to operate the image sensor to capture the image of the indicia, based on the distance.

Example embodiments of systems, methods, and devices for transaction card alignment are provided. In one example embodiment, a mobile device may include a first component and a second component foldable with respect to one another between a first configuration and a second configuration. The mobile device may further include a screen interface on an interior side of the first component, and an alignment feature along the interior side, the alignment feature providing alignment for a contactless card with respect to the screen interface, wherein the contactless card is uncovered by the second component in the first configuration and covered by the second component in the second configuration.

According to one embodiment, a radio tag communication device includes an antenna configured to transmit an interrogation signal and receive a response signal from a radio tag transmitting the response signal in response to the interrogation signal. A radio tag communication control unit of the device is configured to cause the antenna to repeatedly transmit the interrogation signal from a start time of an object conveyance until a reception strength of the response signal received by the antenna is equal to or greater than a predetermined threshold, and then perform writing on the radio tag via the antenna once the reception strength of the response signal received by the antenna is equal to or greater than the predetermined threshold.

A position detection system 1 identifies position information on the basis of a position signal received from a storage medium 30P disposed in a placement area where a target item is placed, identifies item information on the basis of an item signal received from a storage medium 30Q attached to the target item, and associates the position information with the item information and stores the associated information when the item signal is received during a period of time that starts from a time at which the position information is identified and that does not exceed a predetermined length of time.

A system for locating an object in a volume of space can include a communication device of the object disposed in the volume of space, where the communication device broadcasts a first communication signal into the volume of space, where the first communication signal includes a first identification of the object. The system can also include multiple integrated sensor devices disposed in the volume of space, where each integrated sensor device includes at least one sensor, at least one receiver, and at least one transmitter, where the at least one receiver of a subset of the integrated sensor devices receives the first communication signal, where each of the subset determines a signal strength of the first communication signal. The system can further include at least one access controller that receives at least one second communication signal sent by the subset.

Radio frequency identification discontinuity correction is provided by calculating a phase-time slope for a Radio Frequency Identifier (RFID) signal received from an RFID tag; estimating, based on the phase-time slope, a predicted phase reading for the RFID signal at a given time; and in response to detecting a phase discontinuity based on a difference between the predicted phase reading and an actual phase reading for the given time, adjusting a calculated distance to the RFID tag. The calculated distance may indicate that the RFID tag is inside of or outside of a designated zone, and that a motion of the RFID tag indicates travel towards or away from the designated zone, which may be used to add or remove an item associated with the RFID tag to an ongoing item list.

A system comprises a near-field communication controller, a near-field communication antenna electrically coupled to the near-field communication controller, and a near-field communication front end circuit coupled between the near-field communication antenna and the near-field communication controller, wherein the near-field communication front end circuit comprises a sensing capacitor configured to function as a serial capacitance in a matching circuit of the near-field communication front end circuit, the sensing capacitor is further configured to additionally function as a capacitive proximity sensor, and the near filed communication controller is configured to function as a near-field communication controller and to additionally perform capacitive sensing functionalities.