A RFID signal repeater system includes a RFID repeater circuit and a housing body. The repeater circuit has a first RFID antenna and a second RFID antenna being connected by an electrical path. A RFID signal captured at one of the antennas is repeated at the other antenna. The housing body includes a first housing portion housing the first antenna and supporting a RFID reader device, whereby the RFID device is in RFID communication with the first antenna when supported by the first housing portion. The body also includes a second housing portion mechanically connected to the first housing portion and configured to support the second antenna and a programmable RFID device, whereby the programmable RFID device is in RFID communication with the second antenna when supported by the second housing portion. The housing body can have various form factors. A power repeater enabling wireless charging can also be provided.

Systems and methods are disclosed for identifying one or more RF transponders from a group of RF transponders in an environment based on motions and associated change in radio signal strength. An example method includes causing a target object to move, in accordance with a target path, relative to remaining objects, and obtaining signal strength information of signals emitted from the transponders for a period of time during which the target object is moved and identifying the transponder associated with the target object based, at least in part, on analyzing the signal strength information in accordance with one or more criteria predetermined for the target path.

A location designation RFID tag for use in a storage facility includes an inlay, a first layer disposed on a first side of the inlay and having a first thickness, and a second layer disposed on a second side of the inlay. The first layer has a first thickness and the second layer has a second thickness. The inlay includes substrate, an antenna disposed on the substrate, and an integrated circuit disposed on the substrate. The location designation RFID tag may be easily and non-invasively placed and relocated on a floor of a storage facility in a manner that mitigates, and likely resolves, the issues experienced by known RFID tags when placed on a floor. Utilizing an inlay having a long, thin antenna, reduces the overall thickness of the location designation RFID tag, which allows layers to be disposed on the inlay that include a sufficient thickness to improve durability, mitigate detuning, and allow movable devices to readily pass over the location designation RFID tag.

An adaptive inventory management system for use in a materials handling facility storing a plurality of items that are each associated with a Radio Frequency Identification (RFID) tag. The management system including a global inventory database subsystem and a RFID interrogator subsystem comprising a plurality of RFID interrogators that are each configured to read the unique identifier of the RFID tag associated with each of the plurality of items that are within a defined boundary of at least one scan zone generated by the respective RFID interrogator and to communicate the unique identifier of the each scanned RFID tag identified within each scan zone of the respective RFID interrogator to the global inventory database subsystem. The management system being selectively configured to effect user desired levels of fidelity and/or resolution with respect to the generated unique identifier of the each scanned RFID tag within a defined space of the materials handling facility.

A method for locating an object in a facility includes determining position with respect to time of a material handling device associated with a movable vehicle within the facility Signal strength of a signal emitted by at least one identification tag affixed to the object is measured with respect to time. A time that the object is deposited at a fixed position by the material handling device is determined from the measured signal strength. The location in the facility of the fixed position is established using the determined time and the determined position with respect to time.

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.

Transmitting a radio frequency identification (RFID) interrogation signal into an RFID interrogation zone of an Electronic Article Surveillance (EAS) system. Detecting at least one response signal from a first RFID tag of the EAS system responding to the interrogation signal. Capturing, at one or more times in a window of time around the detection, sensor data within a sensor field, the sensor field and the RFID interrogation zone overlapping to form a zone of interest. Characterizing movement of a non-tag object during the window of time based on the captured sensor data. Determining whether the first RFID tag is associated with the characterized non-tag object based on a comparison of the at least one response signal and the characterized movement of the non-tag object.

Various embodiments illustrated herein disclose a method. The method includes receiving, by a first radio-frequency identification (RFID) tag in an RFID reader, a first interrogation command from another RFID reader. The method includes transmitting, by the first RFID tag in the RFID reader, a first response signal to the other RFID reader in response to the reception of the first interrogation command. The method further includes transmitting, by a processor in the RFID reader, a second interrogation command to one or more second RFID tags, where the transmission of the second interrogation command is concurrent to the reception of the first interrogation command or the transmission of the first response signal.

Consistent with disclosed embodiments, systems, methods, and computer readable media for reading wireless merchandise tags and for automatically generating replenishment alerts may be provided. Embodiments may include at least one processor configured to receive wireless signals from a plurality of wirelessly tagged products; perform a look-up of product models associated with IDs of the wirelessly tagged products; determine, based on the look-up, a total number of units of each product model detected in the establishment; access a target threshold of units associated with each product model in the establishment; compare the determined total number of units of each product model with the target threshold to determine when a particular product model falls below an associated threshold; and output a replenishment notification for the particular product model.

An RFID based control subsystem comprises one or more RFID interrogators monitoring tagged switches and communicating with a control system. A Tagged switch is obtained by connecting a switch or contact in series or parallel with an Electrically powered RFID tag. An Electrically powered RFID tag is obtained by removing battery or radiation absorption circuit and adding a suitable circuit and a pair of contacts to a tag that makes it possible to connect a tag to an external power source. A Tagged switch is also obtained by connecting a switch or contact between internal power source and other circuits inside active or passive tag to form a single component wherein power flow is controlled by switch status. An electronic switch could be incorporated on same chip with tag itself.