Abstract: In some implementations, a system for removing oxygen from a container includes a recirculation pump, an oxygen removal device, and an anti-bacterial system. The recirculation pump includes an intake and a discharge, and the intake includes a first connector. The discharge is fluidically connected to an oxygen removal device. The anti-bacterial destroys bacteria through introducing of UV light or ozone.

Abstract: A food preservation system includes a stand with a base and an arm extending perpendicular to a top surface of the base. A lid is connect to the art, and a rigid element is connect to the arm and defines an opening. The rigid element is closer to the top surface of the base than the lid. A first conduit fluidically connects the lid and the arm. A second conduit fluidically connects the lid and the arm.

Abstract: In some implementations, a system for removing oxygen from a container includes a recirculation pump and an oxygen removal device. The recirculation pump includes an intake and a discharge, and the intake includes a first connector. The discharge is fluidically connected to an oxygen removal device.

Abstract: An RFID tag and a method of its use are disclosed. One such RFID tag includes first, second, and third RFID inlays included on a tag housing, the first, second, and third RFID inlays each corresponding to a different rate identifier. The tag also includes a panel engaged with the housing and movable among first, second and third positions. The panel includes RFID shorting structures each positioned to electrically contact one of the first, second, and third RFID inlays such that, in any of the first, second, and third positions, only one of the first, second, and third RFID inlays remains active.

Abstract: In some implementations, a method for wirelessly communicating includes receiving, from a transceiver, a message associated with a value for a dynamic attribute of the vehicle. The message associated with the value for the dynamic attribute is wirelessly transmitted by a converter to a wireless device. The converter is connected to the transceiver and an on-board vehicle processor.

Abstract: In some implementations, a method for wirelessly communicating includes receiving, from a transceiver, a message associated with a value for a dynamic attribute of the vehicle. The message associated with the value for the dynamic attribute is wirelessly transmitted by a converter to a wireless device. The converter is connected to the transceiver and an on-board vehicle processor.

Abstract: In some implementations, a method for wirelessly communicating with the processor of a vehicle includes receiving, from a status module in a vehicle, a value for a dynamic attribute of the vehicle. The value for the dynamic attribute is wirelessly transmitted, from the vehicle, to a Radio Frequency (RF) reader.

Abstract: An RFID tag and a method of its use are disclosed. One such RFID tag includes first, second, and third RFID inlays included on a tag housing, the first, second, and third RFID inlays each corresponding to a different rate identifier. The tag also includes a panel engaged with the housing and movable among first, second and third positions. The panel includes RFID shorting structures each positioned to electrically contact one of the first, second, and third RFID inlays such that, in any of the first, second, and third positions, only one of the first, second, and third RFID inlays remains active.

Abstract: A vehicle tracking system and method of tracking vehicles in multiple traffic lanes is disclosed. One system includes an RFID reader including a plurality of antenna ports. The system also includes a first antenna connected to a first antenna port of the plurality of antenna ports, the first antenna oriented toward a first lane of traffic. The system further includes a second antenna connected to the first antenna port and oriented toward a second lane of traffic. The system also includes a third antenna connected to a second antenna port of the plurality of antenna ports, the third antenna oriented toward the first lane of traffic. In some cases, the RFID reader is configured to detect the existence of a vehicle in a lane based on detection of an RFID device associated with the vehicle at two or more of the plurality of antenna ports.

Abstract: In some implementations, a method for wirelessly communicating with the processor of a vehicle includes receiving, from a status module in a vehicle, a value for a dynamic attribute of the vehicle. The value for the dynamic attribute is wirelessly transmitted, from the vehicle, to a Radio Frequency (RF) reader.

Abstract: The present disclosure is directed switching RFID tags. In some implementations, the RFID system includes an RFID tag and a panel. The panel includes one or more contacts configured to move between a first position and a second position. The second position forms an electrical connection between the RFID tag and the one or more contacts to update a state of the RFID tag.

Abstract: A vehicle detection and location system includes a plurality of RFID tags positioned along a parking array. The system includes an RFID reader movable in conjunction with a vehicle identification system along the parking array and configured to interrogate the RFID tags. A location of the vehicle can be determined based on an association of the interrogation by the RFID reader with an identifier detected by the vehicle identification system.

Abstract: A vehicle tracking system and method of tracking vehicles in multiple traffic lanes is disclosed. One system includes an RFID reader including a plurality of antenna ports. The system also includes a first antenna connected to a first antenna port of the plurality of antenna ports, the first antenna oriented toward a first lane of traffic. The system further includes a second antenna connected to the first antenna port and oriented toward a second lane of traffic. The system also includes a third antenna connected to a second antenna port of the plurality of antenna ports, the third antenna oriented toward the first lane of traffic. In some cases, the RFID reader is configured to detect the existence of a vehicle in a lane based on detection of an RFID device associated with the vehicle at two or more of the plurality of antenna ports.

Abstract: The present disclosure is directed to a system and method for converting between different radio frequencies. In some implementations, a method includes receiving a request from a Radio Frequency Identification Device (RFID) reader configured to communicate with a first type of RFID tag. Independent of digital signal processing, the received request is automatically converted to a request compatible with a second type of RFID tag different from the first type of RFID tag. The converted request is transmitted to an RFID tag of the second type of RFID tag.

Abstract: The present disclosure includes a system and method for conducting radio frequency signals using multiple layers. In some implementations, a signal transfer element configured to passively transfer RF signals between a first region and a second region includes a first conductor layer having a first continuous conductor configured as a first portion of a first antenna, a transmission line, and a first portion of a second antenna. The first antenna and the second antenna are configured to wirelessly receive and transmit Radio Frequency (RF) signals. The signal transfer element also includes a second conductor layer having a second continuous conductor configured as a second portion of the first antenna, a ground plane, and a second portion of the second antenna.

Abstract: The present disclosure is directed to a system and method for backscattering different radio frequency protocols. In some implementations, a radio Frequency (RF) tag includes an antenna and a storage module. The antenna is configured to receive an RF signal from any of a plurality of readers. Each reader is associated with a different protocol having different time durations. The storage module is coupled to the antenna and configured to store energy associated with the RF signal. In addition, the storage module substantially maintains a voltage in the tag during any of the different time durations independent of an internal power supply.

Abstract: The present disclosure is directed switching RFID tags. In some implementations, the RFID system includes an RFID tag and a panel. The panel includes one or more contacts configured to move between a first position and a second position. The second position forms an electrical connection between the RFID tag and the one or more contacts to update a state of the RFID tag.

Abstract: The present disclosure is directed to a system and method for interrogating RFID tags. In some implementations, a method includes transmitting an RF command signal to RFID tags in an inhibited zone during a first time period. The RF command signal substantially prevents the RFID tags in the inhibited zone from responding to RF interrogation. RFID tags in a target zone are interrogated during a second time period different from the first time period. The target zone located differently from the inhibited zone.

Abstract: The present disclosure includes a system and method for passively transferring radio frequency signals. In some implementations, a signal transfer element configured to passively transfer RF signals between a first region of a container and a second region of the container includes a first antenna, a second antenna and a coaxial transmission line. The first antenna is configured to wirelessly receive and transmit RF signals and passively transfer wirelessly received RF signals to a first end of a coaxial transmission line. The second antenna is configured to wirelessly receive and transmit RF signals and passively transfer wirelessly received RF signals to a second end of the coaxial transmission line. The coaxial transmission line is configured to passively transfer RF signals between the first antenna and the second antenna.

Abstract: The present disclosure includes a system and method for conducting radio frequency signals using multiple layers. In some implementations, a signal transfer element configured to passively transfer RF signals between a first region and a second region includes a first conductor layer having a first continuous conductor configured as a first portion of a first antenna, a transmission line, and a first portion of a second antenna. The first antenna and the second antenna are configured to wirelessly receive and transmit Radio Frequency (RF) signals. The signal transfer element also includes a second conductor layer having a second continuous conductor configured as a second portion of the first antenna, a ground plane, and a second portion of the second antenna.