Location and range determination using broadcast messages

    公开(公告)号:US10938585B2

    公开(公告)日:2021-03-02

    申请号:US14848151

    申请日:2015-09-08

    Abstract: Disclosed are methods, devices, systems, apparatus, servers, computer-/processor-readable media, and other implementations, including a method of estimating a range between a first wireless device and a second wireless device that includes obtaining, at the first wireless device, first information related to a first broadcast message transmitted by the first wireless device, and obtaining, at the first wireless device, second information related to a second broadcast message transmitted by the second wireless device, with the second broadcast message including at least some of the first information. The method also includes determining the range between the first wireless device and the second wireless device based, at least in part, on the first information and the second information.

    Adaptive triggering of RTT ranging for enhanced position accuracy

    公开(公告)号:US10285010B2

    公开(公告)日:2019-05-07

    申请号:US15708011

    申请日:2017-09-18

    Abstract: A range between a first wireless device and a second wireless device is estimated using a first mechanism based on messages transmitted over a first communication channel. The first communication channel is associated with a first radio access technology capability of the wireless devices. One or more metrics indicative of an accuracy of the range estimates provided by the first mechanism are obtained. A second mechanism to estimate a range between the first wireless device and the second wireless device may be implemented in favor of the first mechanism when the metric fails to satisfy a criterion. The second mechanism is based on unicast messages transmitted over a second communication channel. The second communication channel is associated with a second radio access technology capability of the wireless devices and may be the same as, or different from, the first communication channel.

    Data Deduplication Using Multi-Chunk Predictive Encoding

    公开(公告)号:US20180196609A1

    公开(公告)日:2018-07-12

    申请号:US15603669

    申请日:2017-05-24

    Inventor: Urs Niesen

    CPC classification number: G06F3/0608 G06F3/0641 G06F3/0679 G06F16/1752

    Abstract: Various embodiments may include methods, devices, and non-transitory processor-readable media for performing data stream encoding by identifying a first data chunk and calculating a first hash value for the first data chunk. A device may determine whether the calculated first hash value is located within a hash table. If so, then the computing device may encode the first data chunk as the first hash value, but if the hash value is not stored in the hash table, a new entry for the hash value may be added to the hash table. A second data chunk may be identified and a hash value calculated. The device compares the second hash value to a next value stored in the hash table. If the second hash value matches the next hash value, the device encodes the second data chunk as a flag indicating that a predicted pattern of data chunks is being followed.

    Efficient encoding and decoding architecture for high-rate data transfer through a parallel bus

    公开(公告)号:US09984035B2

    公开(公告)日:2018-05-29

    申请号:US14837806

    申请日:2015-08-27

    CPC classification number: G06F13/4221 G06F13/4068 G06F13/4204

    Abstract: System, methods, and apparatus are described that facilitate transmission/reception of data over a multi-line parallel bus. In an example, the apparatus selects from a sequential series of data bits a plurality of data bits for transmission over a plurality of parallel bus lines. For each bus line of the plurality of parallel bus lines, the apparatus compares a state of a current data bit selected for transmission on a current bus line during a current clock cycle with one or more conditions related to the current bus line or at least one bus line adjacent to the current bus line, wherein the one or more conditions includes a state of two data bits respectively transmitted on two bus lines adjacent to the current bus line during a previous clock cycle, and determines whether to transmit the current data bit on the current bus line based on the comparison.

    EFFICIENT ENCODING AND DECODING ARCHITECTURE FOR HIGH-RATE DATA TRANSFER THROUGH A PARALLEL BUS
    15.
    发明申请
    EFFICIENT ENCODING AND DECODING ARCHITECTURE FOR HIGH-RATE DATA TRANSFER THROUGH A PARALLEL BUS 有权
    通过并行总线实现高速数据传输的有效编码和解码架构

    公开(公告)号:US20170060806A1

    公开(公告)日:2017-03-02

    申请号:US14837806

    申请日:2015-08-27

    CPC classification number: G06F13/4221 G06F13/4068 G06F13/4204

    Abstract: System, methods, and apparatus are described that facilitate transmission/reception of data over a multi-line parallel bus. In an example, the apparatus selects from a sequential series of data bits a plurality of data bits for transmission over a plurality of parallel bus lines. For each bus line of the plurality of parallel bus lines, the apparatus compares a state of a current data bit selected for transmission on a current bus line during a current clock cycle with one or more conditions related to the current bus line or at least one bus line adjacent to the current bus line, wherein the one or more conditions includes a state of two data bits respectively transmitted on two bus lines adjacent to the current bus line during a previous clock cycle, and determines whether to transmit the current data bit on the current bus line based on the comparison.

    Abstract translation: 描述了通过多线并行总线进行数据传输/接收的系统,方法和装置。 在一个示例中,该装置从连续的数据比特序列中选择多个数据比特,以便在多个并行总线上进行传输。 对于多条并行总线线路中的每条总线,该装置将当前时钟周期内当前总线上选择的用于传输的当前数据位的状态与与当前总线相关的一个或多个条件或至少一个 总线线路,其中所述一个或多个条件包括在先前时钟周期期间分别在与当前总线线路相邻的两条总线上传输的两个数据位的状态,并且确定是否将当前数据位传送到 目前公交线路基于比较。

    Radar-aided single image three-dimensional depth reconstruction

    公开(公告)号:US12141991B2

    公开(公告)日:2024-11-12

    申请号:US17678955

    申请日:2022-02-23

    Abstract: Disclosed are techniques for radar-aided single-image three-dimensional (3D) depth reconstruction. In an aspect, at least one processor of an on-board computer of an ego vehicle receives, from a radar sensor of the ego vehicle, at least one radar image of an environment of the ego vehicle, receives, from a camera sensor of the ego vehicle, at least one camera image of the environment of the ego vehicle, receives, from a light detection and ranging (LiDAR) sensor of the ego vehicle, at least one LiDAR image of the environment of the ego vehicle, and generates a depth image of the environment of the ego vehicle based on the at least one radar image, the at least one LiDAR image, and the at least one camera image.

    Ego-velocity estimation using radar or LIDAR beam steering

    公开(公告)号:US11914046B2

    公开(公告)日:2024-02-27

    申请号:US17107421

    申请日:2020-11-30

    CPC classification number: G01S17/931 G02B26/123 G01S7/4812

    Abstract: Methods, systems, computer-readable media, and apparatuses for radar or LIDAR measurement are presented. Some configurations include transmitting, via a transceiver, a first beam having a first frequency characteristic; calculating a distance between the transceiver and a moving object based on information from at least one reflection of the first beam; transmitting, via the transceiver, a second beam having a second frequency characteristic that is different than the first frequency characteristic, wherein the second beam is directed such that an axis of the second beam intersects a ground plane; and calculating an ego-velocity of the transceiver based on information from at least one reflection of the second beam. Applications relating to road vehicular (e.g., automobile) use are described.

    Radar aided visual inertial odometry outlier removal

    公开(公告)号:US10514456B2

    公开(公告)日:2019-12-24

    申请号:US15826556

    申请日:2017-11-29

    Inventor: Urs Niesen

    Abstract: Various embodiments disclose a device with one or more processors which may be configured to translate a RADAR velocity map in at least one image plane of at least one camera, to form a three-dimensional RADAR velocity image. The 3D RADAR velocity image includes a relative velocity of each pixel in the one or more images, and the relative velocity of each pixel is based on a RADAR velocity estimate in the three-dimensional RADAR velocity map. The one or more processors may be configured to determine whether visual features correspond to a moving object based on the relative velocity of each pixel determined, and may be configured to remove the visual features that correspond to a moving object, prior to providing them as an input into a state updater, in a RADAR-aided visual inertial odometer.

    Visual inertial odometry attitude drift calibration

    公开(公告)号:US10324195B2

    公开(公告)日:2019-06-18

    申请号:US15078862

    申请日:2016-03-23

    Abstract: Disclosed embodiments pertain to a method on a UE may comprise determining a first absolute position of the UE at a first time based on GNSS measurements from a set of satellites. At a second time subsequent to the first time, the UE may determine a first estimate of displacement of the UE relative to the first absolute position using non-GNSS measurements. Further, at the second time, the UE may also determine a second estimate of displacement relative to the first absolute position and/or a second absolute position of the UE based, in part, on: the GNSS carrier phase measurements at the first time from the set of satellites, and GNSS carrier phase measurements at the second time from a subset comprising two or more satellites of the set of satellites, and the first estimate of displacement of the UE.

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