A gaming table contains a number of antennas that are de-tuned from the resonant frequency of a single RFID tag. This increases the power required to read the single tag but matches the resonant frequency for reading a stack of RFID tags. The gaming table may further include a network analyzer and a set of capacitors that are dynamically switched among the antennas according to measuring the reflection coefficient of the antennas.

A wireless tag reading device has an accommodation region with a bottom surface, a first side surface, a second side surface, and a back surface. The accommodation region can accommodate therein a product with a wireless tag attached thereto. The product can be inserted and withdrawn from the accommodation region via an opening at the front and top of the accommodation region. A tag reading unit includes an antenna configured to emit radio waves toward the product in the accommodation region and then receive a response signal. The outside portions of the first side surface, the second side surface, and the back surface reflect radio waves. An inside portion of the back surface is a radio wave transmitting material. There is a gap left between the inside portion and the outside portion of the back surface portion.

Systems and methods for programming pluggable transceivers are provided. In an embodiment, a method includes receiving RFID data from an RFID device in proximity to a network transceiver via an RFID antenna in the network transceiver, said RFID data defining an operating configuration of the network transceiver; and programming the network transceiver according to the operating configuration defined by the received RFID data. In an embodiment, a network transceiver includes: a host interface for connecting to a host; a network interface for transmitting and receiving signals to and from a network; an RFID antenna for receiving RFID data; and a controller in operative communication with the network interface and the RFID antenna, said controller operating the network interface according to an operating configuration, wherein the operating configuration of the controller is programmed using the RFID data received via the RFID antenna. Various other embodiments are also provided.

The present disclosure relates to an inventory system that can include a tagged inventory item, wherein the tagged inventory item includes a radio field tag attached to an inventory item; and an inventory device, wherein the inventory device includes a weighing surface, an array of force sensing resistors, and at least one radio field antenna, wherein the array of force sensing resistors and the at least one radio field antenna are configured to weigh and identify the tagged inventory item through the weighing surface, and methods of using the same. One benefit of the system and method disclosed herein can be monitoring inventory having changing amounts of content in real time.

An RFID tag substrate includes an insulating substrate that has a mounting region in which a semiconductor device is disposed, the mounting region being included in a first surface of the insulating substrate, and a coil that is positioned at an outer edge portion of the insulating substrate. The coil includes a plurality of first coil conductors and a plurality of second coil conductors that are wound such that the first coil conductors and the second coil conductors each have the same number of turns and such that a direction in which the first coil conductors are wound and a direction in which the second coil conductors are wound are opposite to each other. The first coil conductors and the second coil conductors are alternately arranged in a thickness direction of the insulating substrate and connected in series to one another.

A production control system includes: a plurality of tag devices each attached to a corresponding one of a plurality of vehicles each having an identification code and moving along a production line together with the plurality of vehicles to identify positions of the plurality of vehicles, the plurality of tag devices each having a tag ID; a tag reader disposed on the production line and configured to recognize the tag ID of the tag device; a code reader disposed on the production line and configured to recognize the identification code of the vehicle; and a server configured to receive the identification code of the vehicle from the code reader and receive the tag ID of the tag device from the tag reader and map the identification code and the tag ID.

A method for controlling an operation of an ultrasonic blade of an ultrasonic electromechanical system is disclosed. The method includes providing an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade via an ultrasonic waveguide; applying, by an energy source, a power level to the ultrasonic transducer; determining, by a control circuit coupled to a memory, a mechanical property of the ultrasonic electromechanical system; comparing, by the control circuit, the mechanical property with a reference mechanical property stored in the memory; and adjusting, by the control circuit, the power level applied to the ultrasonic transducer based on the comparison of the mechanical property with the reference mechanical property.

A communication apparatus includes an antenna, an actuator assembly, a transducer, and a controller. The actuator assembly is configured to move the antenna in two dimensions relative to a space configured to contain a wireless tag. The transducer is configured to provide phase data indicating a phase of a signal transmitted from the wireless tag in at least (a) a first detection condition in which the antenna has a first position relative to the space and (b) a second detection condition in which the antenna has a second position relative to the space. The controller is configured to determine whether the wireless tag is located inside of the space based on the phase data.

A zone antenna system includes a zone antenna mat including a substantially planar zone antenna and a zone beacon unit configured to establish a detection zone and detect presence of an electronic tag in the detection zone. The zone antenna system may form part of a compliance monitoring system in which presence of the electronic tag the detection zone is part of a monitored process. The zone antenna system establishes a detection zone, detects entry of one or more electronic tags into the detection zone, and stores and/or wirelessly transmits entry event data corresponding to one or more detected entry events for receipt by a remote or local computing device.

A system and method facilitates transfers of specimen containers between a cryogenic freezer and a portable, bulk carrier. An interrogation station has a frame and a well that includes a bottom and at least one sidewall that extends upwardly from the bottom towards a top, wherein the bottom, the at least one sidewall, and the top collectively delineate an interior cavity of the well. The frame includes at least one opening that extends through the top so as to provide entry and access to the interior cavity of the well to receive buckets therein. The interrogation station further includes at least one array of antennas arranged within a plane and positioned beneath the bottom at a location in which the at least one array of antennas is aligned with the at least one opening along a vertical direction, which is perpendicular to the plane.