Various embodiments of the present disclosure identify radio frequency identification tag(s) and/or location(s) thereof. Embodiments may perform such identification utilizing any number of antennas configured at various power levels and/or frequency channels, such as by incrementing and/or decrementing the power level of each antenna and measuring a number of tag reads at interval for each antenna. Confidence scores for each antenna may be generated and compared. Some example embodiments initiate an interrogation command associated with a RFID tag, cause activation of a plurality of antennas at a plurality of transmit power levels, identify a count of tag reads associated with each antenna, and determine a tag location associated with the RFID tag based on the count of tag reads for each antenna.

Medical procedure related objects (e.g., instruments, supplies) tagged with transponders (e.g., RFID transponders, dumb transponders) are accounted for in a medical or clinical environment via an accounting system using a number of antennas and interrogators/readers. A first set of antennas and RFID interrogator(s) interrogate portions of the environment for RFID tagged objects, for example proximate a start and an end of a procedure. Shielded packaging and/or shielded receptacles shield tagged objects, preventing interrogation except for those objects in unshielded portions of the environment. A shielded receptacle may include an antenna to interrogate the contents thereof in a relatively noise-free environment. A data store may maintain information including a current status or count of each instrument or supply, for instance as checked in or checked out. A handheld antenna and/or second set of antennas interrogates a body of a patient for retained instruments or supplies tagged with dumb transponders.

Various embodiments employ multiple readers and tags in fixed locations in different geographical areas and/or along different storage units. This allows for more granular or precise location sensing. Particular embodiments employ multiple environment tags in various geographical locations and within multiple storage units. Using this new infrastructure setup, some embodiments can perform new functionality by predicting whether a target asset is in a particular geographical location, predict whether the asset is within a particular storage unit based on the proportion of readers mapped to that shelf which are actually reading the tag on the asset, and/or can predict where an asset's exact location in the located storage unit is based on comparing indications of signal strength values between each reader and tag in the storage unit with other indications of signal strength values between each reader and the tag that is attached to the asset.

A gaming table includes a network analyzer. The network analyzer detects antenna reflection coefficients faster than RFID tags can be read, enabling game state information to be monitored quickly.

In accordance with embodiments disclosed herein, there are provided methods and systems for real-time beef cattle monitoring utilizing Radio-Frequency Identification (RFID) based technologies. For example, there is disclosed a system having at least a memory to store instructions; a processor to execute the instructions; a database to store data for heads of livestock, wherein each head of livestock is individually identified via a Radio-Frequency Identification (RFID) tag, the RFID tag uniquely identifying each of the heads of livestock to the system; a plurality of antennas to read information transmitted from the RFID tags; a transactional and analytical server to receive the information transmitted from the RFID tags and to store the information in the database; wherein the transactional and analytical server to further analyze the information stored in the database to identify when each head of livestock is present within a defined feeding zone; and monitoring the heads of livestock for anomalous feeding behavior based on the analysis. Other related embodiments are disclosed.

A non-contact type information processing device structured to communicate with a medium in a non-contact manner may include a first circuit part having a first antenna, and the first circuit part may be configured to communicate with the medium at a first resonance frequency by electromagnetic induction. The non-contact type information processing device may further include a second circuit part having a second resonance frequency which is separated from the first resonance frequency, and the second circuit part may include a second antenna and a light emitting element which is operated by electric power obtained by an induced current that is received by the second antenna.

Remote measuring and sensing. Some example embodiment related to optical energy harvesting by identification device, such as infrared identification device (IRID devices). Other embodiments relate to RFID device localization using low frequency source signals. Yet still other embodiments related to energy harvesting by RFID in electric fields in both conductive and non-conductive environments.

A walk-through gate is provided. The walk-through gate includes a first semi-transparent side wall and a second semi-transparent side wall encapsulating a walk-through gate volume having an ingress portion and an egress portion. The walk-through gate further includes a plurality of antennas for wirelessly receiving product identifiers for wireless checkout. At least one of the plurality of antennas is made of a semi-transparent conductive material.

What is disclosed is a device for determining a piece of information on a position of a transmitter, having an antenna device and a data processing device. The antenna device receives signals emanating from the transmitter and has a distinguished directional characteristic which relates to a set of spatially different receive sensitivities of the antenna device. The distinguished directional characteristic has a sensitivity minimum associated to a spatial detection region. The data processing device evaluates the signals received from the antenna device with the distinguished directional characteristic, as regards the position of the transmitter relative to the detection region. In addition, a corresponding method is disclosed.

For a measurement period, signal strengths, device identifiers and access point identifiers are received from a plurality of access points. A record for the measurement period is stored in random access memory with the record being associated with a single device identifier and containing access point identifiers associated with signal strengths received for the measurement period. The location of a device is determined for the measurement period by retrieving spatial coordinates of a corresponding access point for each access point identifier in the record for the measurement period and setting the location of the device for the measurement period to the average of the retrieved spatial coordinates.