TIME-OF-FLIGHT ESTIMATION USING SAMPLING ERROR VALUES

    公开(公告)号:US20230296788A1

    公开(公告)日:2023-09-21

    申请号:US18324276

    申请日:2023-05-26

    Inventor: Tomas MOTOS

    CPC classification number: G01S19/256 H04W4/80 G01S19/35

    Abstract: A circuit includes a first wireless radio frequency (RF) transceiver and a time-of-flight estimator included with or coupled to the first wireless RF transceiver. The time-of-flight estimator estimates a time-of-flight between the first wireless RF transceiver and a second wireless RF transceiver using: a first interval value that indicates an amount of time between when the second wireless RF transceiver received the message and when the second wireless RF transceiver transmitted the response; a first error value that indicates an offset between when the second wireless RF transceiver sampled the message and a target sampling point for the message; a second interval value that indicates an amount of time between when the TX chain sent the message and when the RX chain received the response; and a second error value that indicates an offset between when the RX chain sampled the response and a target sampling point for the response.

    TIME-OF-FLIGHT ESTIMATION USING SAMPLING ERROR VALUES

    公开(公告)号:US20220342083A1

    公开(公告)日:2022-10-27

    申请号:US17241938

    申请日:2021-04-27

    Inventor: Tomas MOTOS

    Abstract: A circuit includes a first wireless radio frequency (RF) transceiver and a time-of-flight estimator included with or coupled to the first wireless RF transceiver. The time-of-flight estimator estimates a time-of-flight between the first wireless RF transceiver and a second wireless RF transceiver using: a first interval value that indicates an amount of time between when the second wireless RF transceiver received the message and when the second wireless RF transceiver transmitted the response; a first error value that indicates an offset between when the second wireless RF transceiver sampled the message and a target sampling point for the message; a second interval value that indicates an amount of time between when the TX chain sent the message and when the RX chain received the response; and a second error value that indicates an offset between when the RX chain sampled the response and a target sampling point for the response.

    TIME-OF-FLIGHT ESTIMATION USING SAMPLING ERROR VALUES

    公开(公告)号:US20240361467A1

    公开(公告)日:2024-10-31

    申请号:US18766819

    申请日:2024-07-09

    Inventor: Tomas MOTOS

    CPC classification number: G01S19/256 G01S19/35 H04W4/80

    Abstract: A circuit includes a first wireless radio frequency (RF) transceiver and a time-of-flight estimator included with or coupled to the first wireless RF transceiver. The time-of-flight estimator estimates a time-of-flight between the first wireless RF transceiver and a second wireless RF transceiver using: a first interval value that indicates an amount of time between when the second wireless RF transceiver received the message and when the second wireless RF transceiver transmitted the response; a first error value that indicates an offset between when the second wireless RF transceiver sampled the message and a target sampling point for the message; a second interval value that indicates an amount of time between when the TX chain sent the message and when the RX chain received the response; and a second error value that indicates an offset between when the RX chain sampled the response and a target sampling point for the response.

    COMBINED PHASE AND TIME-OF-FLIGHT MEASUREMENT

    公开(公告)号:US20230393263A1

    公开(公告)日:2023-12-07

    申请号:US18452087

    申请日:2023-08-18

    CPC classification number: G01S13/84 B60R25/245

    Abstract: Systems and methods of measuring distance between two wireless devices by combining phase shift and time-of-flight measurements. A first wireless devices sends a first packet to the second wireless device. After receiving the first packet, the second wireless device sending to the first wireless device a second packet. After sending the second packet, the second wireless device sends a first continuous wave signal to the first wireless device. After receiving the first continuous wave signal, the first wireless device sends to the second wireless device a second continuous wave signal. The first wireless device then calculates a time-of-flight measurement based on a time between the first wireless device sending the first packet and receiving the second packet, and calculates a second measurement based on a phase shift of the first continuous wave signal and the second continuous wave signal, and combines the two measurements.

    COMBINED PHASE AND TIME-OF-FLIGHT MEASUREMENT

    公开(公告)号:US20250035771A1

    公开(公告)日:2025-01-30

    申请号:US18914782

    申请日:2024-10-14

    Abstract: Systems and methods of measuring distance between two wireless devices by combining phase shift and time-of-flight measurements. A first wireless devices sends a first packet to the second wireless device. After receiving the first packet, the second wireless device sending to the first wireless device a second packet. After sending the second packet, the second wireless device sends a first continuous wave signal to the first wireless device. After receiving the first continuous wave signal, the first wireless device sends to the second wireless device a second continuous wave signal. The first wireless device then calculates a time-of-flight measurement based on a time between the first wireless device sending the first packet and receiving the second packet, and calculates a second measurement based on a phase shift of the first continuous wave signal and the second continuous wave signal, and combines the two measurements.

    LOW-COMPLEXITY SYNCHRONIZATION HEADER DETECTION

    公开(公告)号:US20220021514A1

    公开(公告)日:2022-01-20

    申请号:US17488364

    申请日:2021-09-29

    Abstract: A technique of separating a sequence of modulation shift keying (MSK) symbols into a first portion and a second portion and separately comparing the first portion of the sequence of MSK symbols and the second portion of the sequence of MSK symbols against a first portion of a reference sequence of MSK symbols and a second portion of the reference sequence of MSK symbols allows a low complexity detection of a start field delimiter in a wireless communication packet.

    LOW POWER SOFTWARE DEFINED RADIO (SDR)
    7.
    发明申请
    LOW POWER SOFTWARE DEFINED RADIO (SDR) 有权
    低功耗软件定义无线电(SDR)

    公开(公告)号:US20150278140A1

    公开(公告)日:2015-10-01

    申请号:US14242404

    申请日:2014-04-01

    CPC classification number: G06F13/4022 H04L49/101 Y02D10/14 Y02D10/151

    Abstract: A communication apparatus comprising a plurality of signal processing units configured to perform a set of pre-determined signal processing functions according to a set of parameters, a plurality of programmable crossbars coupled to the plurality of signal processing units, and a plurality of control processors coupled to the plurality of programmable crossbars and configured to adjust the plurality of programmable crossbars to interconnect the signal processing units to implement a selected communication protocol, wherein at least one of the programmable crossbars routes data from a first of the plurality of signal processing units to a second of the plurality of signal processing units forming a data path without interception from the plurality of control processors.

    Abstract translation: 一种通信装置,包括多个信号处理单元,其被配置为根据一组参数执行一组预定信号处理功能;耦合到所述多个信号处理单元的多个可编程交叉开关,以及多个控制处理器, 并且被配置为调整所述多个可编程交叉开关以互连所述信号处理单元以实现所选择的通信协议,其中所述可编程交叉开关中的至少一个将数据从所述多个信号处理单元中的第一个传送到一个 多个信号处理单元中的第二个从多个控制处理器形成数据路径而不被截取。

    COMBINED PHASE AND TIME-OF-FLIGHT MEASUREMENT

    公开(公告)号:US20220317279A1

    公开(公告)日:2022-10-06

    申请号:US17844113

    申请日:2022-06-20

    Abstract: Systems and methods of measuring distance between two wireless devices by combining phase shift and time-of-flight measurements. A first wireless devices sends a first packet to the second wireless device. After receiving the first packet, the second wireless device sending to the first wireless device a second packet. After sending the second packet, the second wireless device sends a first continuous wave signal to the first wireless device. After receiving the first continuous wave signal, the first wireless device sends to the second wireless device a second continuous wave signal. The first wireless device then calculates a time-of-flight measurement based on a time between the first wireless device sending the first packet and receiving the second packet, and calculates a second measurement based on a phase shift of the first continuous wave signal and the second continuous wave signal, and combines the two measurements.

    LOW-COMPLEXITY SYNCHRONIZATION HEADER DETECTION

    公开(公告)号:US20210006388A1

    公开(公告)日:2021-01-07

    申请号:US17028328

    申请日:2020-09-22

    Abstract: A technique of separating a sequence of modulation shift keying (MSK) symbols into a first portion and a second portion and separately comparing the first portion of the sequence of MSK symbols and the second portion of the sequence of MSK symbols against a first portion of a reference sequence of MSK symbols and a second portion of the reference sequence of MSK symbols allows a low complexity detection of a start field delimiter in a wireless communication packet.

    LOW-COMPLEXITY SYNCHRONIZATION HEADER DETECTION

    公开(公告)号:US20200186324A1

    公开(公告)日:2020-06-11

    申请号:US16210420

    申请日:2018-12-05

    Abstract: A technique of separating a sequence of modulation shift keying (MSK) symbols into a first portion and a second portion and separately comparing the first portion of the sequence of MSK symbols and the second portion of the sequence of MSK symbols against a first portion of a reference sequence of MSK symbols and a second portion of the reference sequence of MSK symbols allows a low complexity detection of a start field delimiter in a wireless communication packet.

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