CONTEXT-AWARE, INTELLIGENT BEACONING
    21.
    发明公开

    公开(公告)号:US20230146698A1

    公开(公告)日:2023-05-11

    申请号:US17521724

    申请日:2021-11-08

    Inventor: Torsten A. Staab

    CPC classification number: G01S1/024 H04W4/029 G01S1/0428

    Abstract: A device and method for context-aware, intelligent beaconing in a mission include: determining a current location of a beacon device; obtaining context information from one or more of a plurality of sensors, a database, a server, the beacon device, and external devices, wherein the context information includes behavior of the beacon device, and mission objectives; dynamically fusing the context information together to produce fused context information; dynamically setting a frequency for transmission of a beacon, based on the fused context information; and transmitting the beacon at the set frequency.

    POSITIONING SIGNAL SENDING METHOD AND APPARATUS

    公开(公告)号:US20240302474A1

    公开(公告)日:2024-09-12

    申请号:US18604445

    申请日:2024-03-13

    CPC classification number: G01S1/0428 H03K5/04

    Abstract: A positioning signal sending method and apparatus are provided. A first signal is generated, where duration of a first rising edge of the first signal is less than duration of a first falling edge, the duration of the first rising edge is duration of a rising edge of a main lobe waveform of the first signal, and the duration of the first falling edge is duration of a falling edge of the main lobe waveform of the first signal; and the first signal is sent. In embodiments of this application, rising time of a main lobe waveform of a signal generated is short, and shorter rising time of the main lobe waveform is more conducive to distinguishing two adjacent paths or identifying a first arrival path of a received signal.

    LORAN TRANSMITTER, RECEIVER, SYSTEM AND METHOD OF OPERATING SAME

    公开(公告)号:US20230358841A1

    公开(公告)日:2023-11-09

    申请号:US18042155

    申请日:2021-08-18

    CPC classification number: G01S1/0428 G01S1/245 G01S5/12

    Abstract: A transmitter includes a Loran pulse generator, a dispersion filter, an equalizer, a power amplifier, an antenna tuner, and an antenna. The Loran pulse generator is configured to generate a Loran pulse signal. The dispersion filter is coupled to the Loran pulse generator, and is configured to generate a dispersed signal responsive to the Loran pulse signal. The equalizer is coupled to the dispersion filter, and is configured to generate an equalized dispersed signal responsive to the dispersed signal. The power amplifier is coupled to the equalizer, and configured to generate an amplified signal responsive to the equalized dispersed signal. The antenna tuner is coupled to the power amplifier, and is configured to generate a tuned signal responsive to the amplified signal. The antenna is coupled to the antenna tuner, and is configured to radiate a transmitted signal responsive to the tuned signal.

    TOOL TRACKING SYSTEM
    27.
    发明公开

    公开(公告)号:US20230341500A1

    公开(公告)日:2023-10-26

    申请号:US17050861

    申请日:2020-08-13

    CPC classification number: G01S1/0428 G01S1/68 H04W4/029

    Abstract: A beacon transmitter including a wireless transceiver and an electronic controller coupled to the wireless transceiver. The electronic controller is configured to repeatedly transmit, via the wireless transceiver, a first beacon signal through a first number of transmission repetitions spaced at a first repeat interval, and receive an acknowledgement signal via the wireless transceiver. The electronic controller is also configured to stop transmission of the first beacon signal for a first predetermined amount of time based on receipt of the acknowledgement signal, determine that the first predetermined amount of time has expired, and resume repeatedly transmitting, via the wireless transceiver, the first beacon signal in response to determining that the predetermined amount of time has expired.

    Dual-band real-time location
    28.
    发明授权

    公开(公告)号:US11785419B2

    公开(公告)日:2023-10-10

    申请号:US17158140

    申请日:2021-01-26

    Abstract: The disclosure describes a real-time location system for tracking assets at a site. The system includes one or more tracking tags for carrying by or on the assets, one or more locating device nodes and a processing application. Each tracking tag includes a short-range radio frequency signal transmitter configured to transmit a beacon signal with unique identification information of the tracking tag. Each locating device node includes a signal receiver configured to receive the beacon signals at a received signal strength and a long-range radio frequency transmitter configured to transmit, using a spread spectrum, long-range modulation over a wide area network, locating signals including the unique identification information of the tracking tag and a received signal strength indicator representing the received signal strength. The processing application is configured to associate tracking tags and locating device nodes based upon the received signal strength indicator.

    Ultra-wideband location systems and methods

    公开(公告)号:US11743696B2

    公开(公告)日:2023-08-29

    申请号:US17604944

    申请日:2020-04-17

    Applicant: Be Spoon

    Inventor: Philippe Bollard

    Abstract: In an embodiment a real-time location method includes sending, by a master beacon device and one or more beacon repeater devices, ultra-wideband beacon frames, wherein the ultra-wideband beacon frames are transmitted as interleaved pairs of ultra-wideband beacon frames, wherein each interleaved pair is sent either from the master beacon device or the one or more beacon repeater devices, wherein each interleaved pair includes a first ultra-wideband beacon frame and a second ultra-wideband beacon frame, and wherein, for each interleaved pair, the first ultra-wideband beacon frame and the second ultra-wideband beacon frame are transmitted with a master time delay, receiving, by one or more tag devices, at least one of the interleaved pairs of ultra-wideband beacon frames, receiving, by the one or more beacon repeater devices, at least one of the interleaved pairs of ultra-wideband beacon frames, receiving, by one of a plurality of tag response receptor units, at least one of the interleaved pairs of ultra-wideband beacon frames, sending, by the one or more tag devices, ultra-wideband tag response frames and receiving, by the one of the plurality of tag response receptor units, at least one of the ultra-wideband tag response frames.

    Augmented reality precision tracking and display

    公开(公告)号:US11740313B2

    公开(公告)日:2023-08-29

    申请号:US17161213

    申请日:2021-01-28

    Applicant: Ted Brown

    Inventor: Ted Brown

    Abstract: Example systems, devices, media, and methods are described for tracking one or more movable objects and presenting virtual elements on a display in proximity to the tracked movable objects. One or more ultra-wideband (UWB) transmitters are mounted to each movable object in a physical environment including at least two synchronized UWB receivers. The receivers calculate a current location of each movable object. A plurality of portable electronic devices, including one or more eyewear devices, are paired with the receivers in a network. A localization application determines a current location of each eyewear device. A rendering application presents one or more virtual elements on a display as an overlay relative to the current movable object location and in relative proximity to the current eyewear location. The physical environment is represented by a static mesh. A time synchronized tracking application identifies moving items that are not coupled to a UWB transmitter. The rendering application presents the virtual elements on the display in accordance with the static mesh and the moving items.

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