中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

60 records (took 0.023 seconds)

    Enhanced positioning system using hybrid filter
    52.
    发明授权
    Enhanced positioning system using hybrid filter 有权

    公开(公告)号：US09841491B2

    公开(公告)日：2017-12-12

    申请号：US15434198

    申请日：2017-02-16

    Applicant: Intel Corporation

    Inventor： Yuval Amizur ,  Uri Schatzberg

    IPC: H04W24/00 ,  G01S5/02

    CPC classification number: G01S5/0278 ,  H04W4/023 ,  H04W4/029

    Abstract: The disclosure generally relates to an enhanced positioning system and method using a combination or hybrid filter. In one embodiment, Time-Of-Flight (ToF) measurements are used to determine an approximate location for a mobile device in relationship to one or more Access Points. The ToF combined with known and unknown variables are then processed through a hybrid filter system to determine location of the mobile device. The hybrid filter system may include a Kalman Filter (KF) for processing linear models and generally Gaussian noise distribution. The KF assumes that the state probability of mobile device location is Gaussian. Such variables include, for example, WiFi ToF bias. The hybrid filter system may include a Bayesian Filter (BF) for processing variables having non-Gaussian noise distribution and non-linear models. Such variables include, for example, the coordinates of the mobile device. A probability determination from each of the KF and BF is then applied to estimate the mobile device location.

    POLLED TIME-OF-FLIGHT RESPONSE
    55.
    发明申请
    POLLED TIME-OF-FLIGHT RESPONSE 有权
    飞行时间的飞行时间

    公开(公告)号：US20170052251A1

    公开(公告)日：2017-02-23

    申请号：US15341326

    申请日：2016-11-02

    Applicant: INTEL CORPORATION

    Inventor： Shani Ben-Haim ,  Yuval Amizur ,  Jonathan Segev

    IPC: G01S13/76 ,  H04W64/00 ,  G01S5/14 ,  H04W24/08

    CPC classification number: G01S13/767 ,  G01S5/10 ,  G01S5/14 ,  H04L7/0033 ,  H04W4/02 ,  H04W24/00 ,  H04W24/08 ,  H04W64/00 ,  Y02D70/00

    Abstract: Embodiments of a communication station and method for time-of-flight (ToF) location determination in a wireless network are generally described herein. In some embodiments, a responding communication station receives a ToF measurement request. The responding communication station transmits an acknowledgment of the ToF measurement request. The responding communication station also transmits a response to the ToF measurement request that includes an indication of a time period for an initiating communication station to poll the responding communication station for a ToF result.

    Abstract translation: 通常在这里描述无线网络中的通信站和飞行时间（ToF）位置确定方法的实施例。 在一些实施例中，响应通信站接收ToF测量请求。 响应通信站发送ToF测量请求的确认。 响应通信站还向ToF测量请求发送响应，该请求包括用于起始通信站的时间段的指示以轮询响应的通信站以获得ToF结果。

    WIRELESS STATION AND METHODS FOR TOF POSITIONING USING REVERSE-DIRECTION GRANT
    56.
    发明申请
    WIRELESS STATION AND METHODS FOR TOF POSITIONING USING REVERSE-DIRECTION GRANT 审中-公开
    无线站和使用反向授权的TOF定位方法

    公开(公告)号：US20160270124A1

    公开(公告)日：2016-09-15

    申请号：US15070522

    申请日：2016-03-15

    Applicant: Intel Corporation

    Inventor： Adrian P. Stephens ,  Yuval Amizur ,  Jonathan Segev

    IPC: H04W74/08 ,  H04L1/16

    CPC classification number: H04W74/0891 ,  H04L1/1664 ,  H04L1/1678

    Abstract: Embodiments of a communication station (STA) and method for time-of-flight (ToF) positioning in a wireless network are generally described herein. In some embodiments, an initiating station may transmit a message M1 carrying a high-throughput control (HTC) field that includes a reverse direction grant (RDG) bit. The RDG indication grants permission to a responding station to send information back to the initiating station. The message M1 may be a timing measurement action frame. An ACK frame may be received from Me responding station to acknowledge receipt of the message M1. The ACK frame may optionally carry an HTC field that includes amore PPDU indication to indicate whether a PPDU (e.g., contained in message M2) is to follow the ACK frame. The message M2 may be received from the responding station and may include timing measurement information from a current and/or one or more previous ToF message exchanges.

    Abstract translation: 通常在这里描述在无线网络中的通信站（STA）和用于飞行时间（ToF）定位的方法的实施例。 在一些实施例中，发起站可以发送携带包括反向授权（RDG）位的高吞吐量控制（HTC）字段的消息M1。 RDG指示允许响应站将信息发送回发起站。 消息M1可以是定时测量动作帧。 可以从Me响应站接收ACK帧以确认接收到消息M1。 ACK帧可以可选地携带包括不安PPDU指示的HTC字段，以指示PPDU（例如，包含在消息M2中）是否遵循ACK帧。 可以从响应站接收消息M2，并且可以包括来自当前和/或一个或多个先前的ToF消息交换的定时测量信息。

    Communication station and method for time-of-flight positioning using cooperating stations
    57.
    发明授权
    Communication station and method for time-of-flight positioning using cooperating stations 有权
    使用合作站的通信站和飞行时间定位方法

    公开(公告)号：US09404997B2

    公开(公告)日：2016-08-02

    申请号：US13790432

    申请日：2013-03-08

    Applicant: Intel Corporation

    Inventor： Yuval Amizur ,  Leor Banin ,  Uri Schatzberg ,  Alexander Sirotkin

    IPC: G01S1/24 ,  G01S5/14 ,  G01S5/00 ,  G01S13/76 ,  G01S13/87

    CPC classification number: G01S5/14 ,  G01S5/0072 ,  G01S5/0236 ,  G01S5/0289 ,  G01S13/765 ,  G01S13/876

    Abstract: Embodiments of a communication station and method for time-of-flight (ToF) positioning in a wireless network are generally described herein. In some embodiments, a ToF cooperation table may be received by a positioning station from an access point. The ToF cooperation table may identify one or more cooperating stations and may include information about each cooperating station for ToF positioning. A ToF positioning protocol may be performed with at least some of the cooperating stations identified in the ToF cooperation table using the information in the ToF cooperation table. During the ToF positioning protocol, a current position and a station positional accuracy may be received from each cooperating station. The current position may be a position when ToF is measured. A location of the positioning station may be determined based on the current positions and the ranges to each of the cooperating stations determined from the ToF positioning protocol.

    Abstract translation: 通常在这里描述用于无线网络中的飞行时间（ToF）定位的通信站和方法的实施例。 在一些实施例中，ToF协作表可以由定位站从接入点接收。 ToF协作表可以识别一个或多个协作站，并且可以包括关于ToF定位的每个协作站的信息。 ToF定位协议可以使用ToF协作表中的信息在ToF协作表中标识的至少一些协作站进行。 在ToF定位协议期间，可以从每个协作站接收当前位置和站位置精度。 当前位置可以是测量ToF时的位置。 可以基于从ToF定位协议确定的每个协作站的当前位置和范围来确定定位站的位置。

    Wireless station and methods for TOF positioning using reverse-direction grant
    59.
    发明授权
    Wireless station and methods for TOF positioning using reverse-direction grant 有权
    无线站和TOF定位方法采用逆向授权

    公开(公告)号：US09313811B2

    公开(公告)日：2016-04-12

    申请号：US14124444

    申请日：2013-06-28

    Applicant: Intel Corporation

    Inventor： Adrian P. Stephens ,  Yuval Amizur ,  Jonathan Segev

    IPC: H04W74/08 ,  H04L1/16

    CPC classification number: H04W74/0891 ,  H04L1/1664 ,  H04L1/1678

    Abstract: Embodiments of a communication station (STA) and method for time-of-flight (ToF) positioning in a wireless network are generally described herein. In some embodiments, an initiating station may transmit a message M1 carrying a high-throughput control (HTC) field that includes a reverse direction grant (RDG) bit. The RDG indication grants permission to a responding station to send information back to the initiating station. The message M1 may be a timing measurement action frame. An ACK frame may be received from the responding station to acknowledge receipt of the message M1. The ACK frame may optionally carry an HTC field that includes a more PPDU indication to indicate whether a PPDU (e.g., contained in message M2) is to follow the ACK frame. The message M2 may be received from the responding station and may include timing measurement information from a current and/or one or more previous ToF message exchanges.

    Abstract translation: 通常在这里描述在无线网络中的通信站（STA）和用于飞行时间（ToF）定位的方法的实施例。 在一些实施例中，发起站可以发送携带包括反向授权（RDG）位的高吞吐量控制（HTC）字段的消息M1。 RDG指示允许响应站将信息发送回发起站。 消息M1可以是定时测量动作帧。 可以从响应站接收ACK帧以确认消息M1的接收。 ACK帧可以可选地携带包括更多PPDU指示的HTC字段，以指示PPDU（例如，包含在消息M2中）是否遵循ACK帧。 可以从响应站接收消息M2，并且可以包括来自当前和/或一个或多个先前的ToF消息交换的定时测量信息。

    Systems and methods of reducing timing measurement error due to clock offset
    60.
    发明授权
    Systems and methods of reducing timing measurement error due to clock offset 有权
    降低由于时钟偏移引起的定时测量误差的系统和方法

    公开(公告)号：US09222785B2

    公开(公告)日：2015-12-29

    申请号：US13926314

    申请日：2013-06-25

    Applicant: Intel Corporation

    Inventor： Leor Banin ,  Yuval Amizur ,  Uri Schatzberg ,  Adrian P Stephens

    IPC: G05D1/02 ,  G06F17/10 ,  G06G7/78 ,  G01C21/20 ,  G01S5/02 ,  G01S5/14

    CPC classification number: G01C21/206 ,  G01S5/021 ,  G01S5/14

    Abstract: Navigation systems for use in indoor environments may include a navigation system that can calculate a time of flight of signals between a navigation device and a WiFi® Access Point. Such a calculation can be more accurate not just by using more accurate oscillators in devices, but by correcting a relative error between two devices. This relative error may be found by determining a timing offset correction, a difference in accuracy between the navigation device and the WiFi® Access Point. This may be performed by performing a fine frequency estimation on a long training field or by receiving a parts per million (ppm) offset from another device. Once the ppm offset is determined, the accuracy of the navigation device can be improved by a factor of 50 using a series of equations described in the disclosure.

    Abstract translation: 用于室内环境的导航系统可以包括可以计算导航装置和WiFi接入点之间的信号的飞行时间的导航系统。 这样的计算不仅可以通过在设备中使用更精确的振荡器，而且通过校正两个设备之间的相对误差来更准确。 可以通过确定定时偏移校正，导航装置和WiFi接入点之间的精度差来确定该相对误差。 这可以通过在长训练场上执行精细频率估计或者通过接收来自另一设备的百万分之一（ppm）的偏移来执行。 一旦确定了ppm偏移，则可以使用本公开中描述的一系列等式将导航装置的精度提高50倍。

Patent Agency Ranking