Abstract: An artificial-reality system comprising (1) a wearable dimensioned to be donned on a body part of a user, wherein the wearable comprises (A) a set of electrodes that detect one or more neuromuscular signals via the body part of the user and (B) a transmitter that transmits an electromagnetic signal, (2) a head-mounted display communicatively coupled to the wearable, wherein the head-mounted display comprises a set of receivers that receive the electromagnetic signal, and (3) one or more processing devices that (1) determine, based at least in part on the neuromuscular signals, that the user has made a specific gesture and (2) determine, based at least in part on the electromagnetic signal, a position of the body part of the user when the user made the specific gesture. Various other apparatuses, systems, and methods are also disclosed.

Abstract: An artificial-reality system comprising (1) a wearable dimensioned to be donned on a body part of a user, wherein the wearable comprises (A) a set of electrodes that detect one or more neuromuscular signals via the body part of the user and (B) a transmitter that transmits an electromagnetic signal, (2) a head-mounted display communicatively coupled to the wearable, wherein the head-mounted display comprises a set of receivers that receive the electromagnetic signal, and (3) one or more processing devices that (1) determine, based at least in part on the neuromuscular signals, that the user has made a specific gesture and (2) determine, based at least in part on the electromagnetic signal, a position of the body part of the user when the user made the specific gesture. Various other apparatuses, systems, and methods are also disclosed.

Abstract: An artificial-reality system comprising (1) a wearable dimensioned to be donned on a body part of a user, wherein the wearable comprises (A) a set of electrodes that detect one or more neuromuscular signals via the body part of the user and (B) a transmitter that transmits an electromagnetic signal, (2) a head-mounted display communicatively coupled to the wearable, wherein the head-mounted display comprises a set of receivers that receive the electromagnetic signal, and (3) one or more processing devices that (1) determine, based at least in part on the neuromuscular signals, that the user has made a specific gesture and (2) determine, based at least in part on the electromagnetic signal, a position of the body part of the user when the user made the specific gesture. Various other apparatuses, systems, and methods are also disclosed.

Abstract: An artificial-reality system comprising (1) a wearable dimensioned to be donned on a body part of a user, wherein the wearable comprises (A) a set of electrodes that detect one or more neuromuscular signals via the body part of the user and (B) a transmitter that transmits an electromagnetic signal, (2) a head-mounted display communicatively coupled to the wearable, wherein the head-mounted display comprises a set of receivers that receive the electromagnetic signal, and (3) one or more processing devices that (1) determine, based at least in part on the neuromuscular signals, that the user has made a specific gesture and (2) determine, based at least in part on the electromagnetic signal, a position of the body part of the user when the user made the specific gesture. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A radio frequency identification (RFID) reader outputs an interrogation signal, and hops/varies the phase of the interrogation signal sent by the RFID reader over time. Varying the phase of the interrogation signal enables the RFID reader to provide, for each zone of an RF field of the RFID reader, a particular phase that reduces of the effects of interference RF signal(s) present in that zone of the RF field. Reducing the interference in each zone of the RF field increases the throughput of RFID tags that can be successfully read by the RFID reader.

Abstract: A radio frequency identification system comprises a radio-frequency identification substrate and an interrogator. In one embodiment, the radio-frequency identification substrate comprises a plurality of radio-frequency identification devices. In one embodiment, a controller on the substrate controls a first one of the plurality of radio-frequency identification devices based on a state of a second one of the plurality of radio-frequency identification devices. In one embodiment, an antenna system includes an S-shaped portion electrically coupled to an integrated circuit along a central portion of the S-shaped portion. Adjusting the parameters of the segments making up the S-shaped portion controls performance characteristics of a radio-frequency identification device.

Abstract: A multi-band and/or multi-protocol, configurable, RFID tag is provided. The tag can include one or more electrical or mechanical selectors for selecting from among multiple frequency bands and communication protocols. In some embodiments, a signal band and protocol can be detected automatically and selection among bands and protocols can be performed automatically. In some embodiments, one or more externally accessibly switches can be actuated by a user to select a band and/or protocol.

Abstract: A radio frequency identification system comprises a radio-frequency identification substrate and an interrogator. In one embodiment, the radio-frequency identification substrate comprises a plurality of radio-frequency identification devices. In one embodiment, a controller on the substrate controls a first one of the plurality of radio-frequency identification devices based on a state of a second one of the plurality of radio-frequency identification devices. In one embodiment, an antenna system includes an S-shaped portion electrically coupled to an integrated circuit along a central portion of the S-shaped portion. Adjusting the parameters of the segments making up the S-shaped portion controls performance characteristics of a radio-frequency identification device.

Abstract: Systems, methods, and devices wirelessly communicate in a near-field region and a far-field region. A device may include a near-field antenna and a far-field antenna. The device may be configured to selectively operate in a near-field mode, employing the near-field antenna, and/or in a far-field mode, employing the far-field antenna, and/or in a joint mode, employing both the near-field antenna and the far-field antenna separately or concurrently. One type of device may be a wireless communications data-reader device configured for both near-field and far-field communications. Another type of device may be a wireless communications data-provider device configured for both near-field and far-field communications.

Abstract: A media marking transponder system includes a media fastener and a wireless transponder circuit coupled to the media fastener. The antenna for the wireless transponder circuit has a first effective length when no piece of media is fastened to the media fastener and a second, different effective length when at least one piece of media is fastened to the media fastener.

Abstract: A circularly polarized antenna includes a generally helical wire defining a generally cylindrical passage having a first end and a second end. A first ground plane is proximate the first end of the generally cylindrical passage and has a width substantially equal to a diameter of the generally cylindrical passage. A cable extends through the generally cylindrical passage and is electrically coupled to the first ground plane and to the generally helical wire proximate the first end.

Abstract: A radio frequency identification (RFID) reader outputs an interrogation signal, and hops/varies the phase of the interrogation signal sent by the RFID reader over time. Varying the phase of the interrogation signal enables the RFID reader to provide, for each zone of an RF field of the RFID reader, a particular phase that reduces of the effects of interference RF signal(s) present in that zone of the RF field. Reducing the interference in each zone of the RF field increases the throughput of RFID tags that can be successfully read by the RFID reader.

Abstract: Systems, methods, and devices wirelessly communicate in a near-field region and a far-field region. A device may include a near-field antenna and a far-field antenna. The device may be configured to selectively operate in a near-field mode, employing the near-field antenna, and/or in a far-field mode, employing the far-field antenna, and/or in a joint mode, employing both the near-field antenna and the far-field antenna separately or concurrently. One type of device may be a wireless communications data-reader device configured for both near-field and far-field communications. Another type of device may be a wireless communications data-provider device configured for both near-field and far-field communications.

Abstract: A media marking transponder system includes a media fastener and a wireless transponder circuit coupled to the media fastener. The antenna for the wireless transponder circuit has a first effective length when no piece of media is fastened to the media fastener and a second, different effective length when at least one piece of media is fastened to the media fastener.

Abstract: A radio frequency identification (RFID) tag is adapted to operate with a wideband or multiple band of frequencies, such as 860-960 MHz. The RFID tag includes a flexible antenna inlay structure that can be integrated into a rigid structure to form a rigid RFID tag. The antenna inlay structure can be folded to provide a compact rigid RFID tag. The antenna inlay structure may also be used in a smart label. The antenna inlay structure can work with RFID chips operating under Gen 2, ISO, or other protocol. The RFID tag can be provided with a metallized label that operates to shield the antenna inlay structure against electromagnetic effects of an object (such as a metallic object) having the RFID tag affixed thereon.

Abstract: Systems and methods for increasing the range of RFID tags are provided. A supplemental RF power source can be provided to energize the tag and increase the distance at which an RFID tag can be read by an RFID reader. In some embodiments, the supplemental power source can be provided at a substantially constant wavelength. In other embodiments, the supplemental power source can be provided by a frequency hopping transmitter or other variable wavelength source.

Abstract: A multi-band and/or multi-protocol, configurable, RFID tag is provided. The tag can include one or more electrical or mechanical selectors for selecting from among multiple frequency bands and communication protocols. In some embodiments, a signal band and protocol can be detected automatically and selection among bands and protocols can be performed automatically. In some embodiments, one or more externally accessibly switches can be actuated by a user to select a band and/or protocol.

Abstract: An RF transponder comprises a transponder integrated circuit, an antenna connected to the transponder integrated circuit, and at least one parasitic element adapted to interact electrically with the antenna and thereby affect antenna impedance. The orientation of the parasitic element with respect to the antenna is selected to achieve a desired operational frequency band for the RF transponder. Specifically, the spacing between the antenna and the parasitic element is selected to achieve the desired operational frequency band. For example, a first selected spacing may enable an operational frequency band suitable for a first geographic region (e.g., the United States), a second selected spacing may enable an operational frequency band suitable for a second geographic region (e.g., Europe), and a third selected spacing may enable an operational frequency band suitable for a third geographic region (e.g., Japan).

Abstract: A system useful in providing communications with automatic data collection (ADC) devices employs an antenna located in a potentially hazardous environment, a radio circuit located in a non-hazardous environment, and a coupling apparatus to provide an interface between the antenna and the radio circuit that prevents electrical discharges from occurring in the potentially hazardous environment.

Abstract: Field Configurable Radiation Antenna Device for fixed dipole antenna comprising of a hollow tube and at least one pair of directional vanes is described. The beam direction of the antenna can be changed by operationally connecting multiples pairs of directional vanes to the hollow tube and by rotating the directional vanes relatively outer peripheral surface of the hollow tube. Such adjustments allow the user to tune the antenna to meet new or unforeseen coverage issues.