Inter-frequency signal aiding for tracking satellite navigation signals

    公开(公告)号:US12117539B2

    公开(公告)日:2024-10-15

    申请号:US17632088

    申请日:2019-08-01

    发明人: Rong Yang Yu Morton

    摘要: Various embodiments of the present technology generally relate to multi-frequency satellite navigation receiver technology. More specifically, some embodiments relate to an inter-frequency signal aiding technique for multi-frequency signal tracking in a multi-frequency receiver. The present technology enables a satellite navigation receiver (such as GPS) to continue operation, or to have improved performance, in environments where signals on one or more frequency bands experience fading. Some embodiments can estimate parameters of signal channels that experience fading based on measurements obtained from all or other less compromised frequency bands in linear operation by the receiver. Some embodiments can optimally estimate carrier parameters of navigation signals with consideration of relative measurement qualities. These parameters are used to construct the local reference signals, maintain lock on the fading signals, and obtain accurate positioning solutions and remote sensing observations.

    Gaze-operated point designation on a 3D object or scene

    公开(公告)号:US11902491B1

    公开(公告)日:2024-02-13

    申请号:US18497123

    申请日:2023-10-30

    申请人: Eyegaze Inc.

    IPC分类号: H04N13/117 G06F3/01 G06T7/70

    CPC分类号: H04N13/117 G06F3/013 G06T7/70

    摘要: A method for controlling the video display of a virtual 3D object or scene on a 2D display device is provided. A virtual video camera, controlled by a virtual-video-camera state variable consisting of camera control and location parameters, generates the 2D video of the object or scene. A target virtual camera state, representing an optimal view of a given surface point, is generated for each model surface point. A 2D coordinate of the image display is received from a user, either by looking at a point or selecting it with a mouse click. A corresponding 3D designated object point on the surface of the object is calculated from the received 2D display coordinate. The virtual camera is controlled to move its view toward the 3D designated object point with dynamics that allow the user to easily follow the motion of the designated object point as he watches the video.

    Classification of ST waves and ST segment type

    公开(公告)号:US11896381B1

    公开(公告)日:2024-02-13

    申请号:US17394494

    申请日:2021-08-05

    摘要: Electrical impulses are received from a beating heart. The electrical impulses are converted to an ECG waveform. The ECG waveform is converted to a frequency domain waveform, which, in turn, is separated into two or more different frequency domain waveforms, which, in turn, are converted into a plurality of time domain cardiac electrophysiological subwaveforms and discontinuity points between these subwaveforms. The plurality of subwaveforms and discontinuity points are compared to a database of subwaveforms and discontinuity points for normal and abnormal patients or to a set of rules developed from the database. An ST segment and one or more ST subwaveforms within the ST segment are identified from the plurality of subwaveforms and discontinuity points based on the comparison. The ECG waveform with the one or more ST subwaveforms within the ST segment is displayed.

    Solar collector pillar
    5.
    外观设计

    公开(公告)号:USD1011272S1

    公开(公告)日:2024-01-16

    申请号:US29744270

    申请日:2020-07-28

    摘要: FIG. 1 is an isometric view of a first embodiment of a solar collector pillar showing the new design;
    FIG. 2 is a right side view thereof;
    FIG. 3 is a left side view thereof;
    FIG. 4 is a front view thereof;
    FIG. 5 is a back view thereof;
    FIG. 6 is a top plan view thereof;
    FIG. 7 is a bottom plan view thereof;
    FIG. 8 is an isometric view of a second embodiment of a solar collector pillar showing the new design;
    FIG. 9 is a right side view thereof;
    FIG. 10 is a left side view thereof;
    FIG. 11 is a front view thereof;
    FIG. 12 is a back view thereof;
    FIG. 13 is a top plan view thereof;
    FIG. 14 is a bottom plan view thereof;
    FIG. 15 is another right side view thereof;
    FIG. 16 is a top cross-sectional view at the (H) position of FIG. 15;
    FIG. 17 is a top cross-sectional view at the (M) position of FIG. 15; and,
    FIG. 18 is a top cross-sectional view at the (L) position of FIG. 15.
    The broken lines are for environmental purposes only and form no part of the claimed design. The design shown is not to be limited to any particular size and may be scaled larger or smaller.

    Systems and methods for calculating protein confidence values

    公开(公告)号:US11875880B2

    公开(公告)日:2024-01-16

    申请号:US16679155

    申请日:2019-11-09

    发明人: Ignat V. Shilov

    摘要: A method is disclosed for calculating and recalculating protein confidence values by recalculating peptide confidence values in proteomic analysis. A plurality of scans are performed of a sample that is proteolytically digested into surrogate peptide analytes. A plurality of spectra are obtained, and a plurality of peptides are identified. A protein database is searched for proteins matching peptides from the plurality of peptides. Peptide confidence values are determined for the set of peptides. A protein confidence value is calculated for each protein in the set of proteins. A protein from the set of proteins with a largest protein confidence value is selected, the largest protein confidence value for the protein is saved, the protein from the set of proteins is removed, and peptides corresponding to the protein is removed from the set of peptides. The protein confidence value is recalculated for each protein in the set of proteins.

    TOF qualitative measures using a multichannel detector

    公开(公告)号:US11791150B2

    公开(公告)日:2023-10-17

    申请号:US17310959

    申请日:2020-04-15

    IPC分类号: H01J49/40 H01J49/00 H01J49/02

    摘要: The resolution of a TOF mass analyzer is maintained despite a loss of resolution in one or more channels of a multichannel ion detection system by selecting the highest resolution channels for qualitative analysis. Ion packets that impact a multichannel detector are converted into multiplied electrons and emitted from two or more segmented electrodes that correspond to impacts in different regions across a length of the detector. The electrons received by each electrode of the two or more segmented electrodes for each ion packet are converted into digital values in a channel of a multichannel digitizer, producing digital values for at least two or more channels. Qualitative information about the ion packets is calculated using digital values of a predetermined subset of one or more channels of the at least two or more channels known to provide the highest resolution.

    Microbial identification and quantitation using MS cleavable tags

    公开(公告)号:US11549944B2

    公开(公告)日:2023-01-10

    申请号:US16358533

    申请日:2019-03-19

    摘要: Systems and methods are provided for microbial identification using cleavable tags. Control information is sent to a mass spectrometer to fragment one or more nucleic acid primers labeled with a first tag and monitor for an intensity of the first tag in a mass spectrometry (MS) method. An ion source provides a beam of ions from a polymerase chain reaction amplified sample that includes one or more nucleic acid primers labeled with the first tag. The first tag binds to one or more nucleic acid primers of a known microbe and is cleaved from the nucleic acid primers during the MS method. The mass spectrometer receives the beam of ions and is adapted to perform the MS method on the beam of ions. If the intensity of the first tag received from the mass spectrometer exceeds a threshold value, the known microbe is identified in the sample.