公开(公告)号：US11989026B1

公开(公告)日：2024-05-21

申请号：US17303044

申请日：2021-05-19

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Chen Wang ,  Lei Zhu ,  Miro Yakov Shverdin ,  Yue Hu ,  Isabella Talley Lewis ,  Bruce Robert Woodley ,  Daimian Wang

IPC: G05D1/02 ,  G01S17/42 ,  G01S17/58 ,  G01S17/86 ,  G05D1/00

CPC classification number: G05D1/0223 ,  G01S17/42 ,  G01S17/58 ,  G01S17/86 ,  G05D1/027

Abstract: An autonomous mobile device (AMD) may perform tasks within a physical space. The AMD may move over ramps, bumps, or navigate around obstacles. The AMD may have an inertial measurement unit (IMU) and distance sensors. The IMU provides tilt information indicative of the AMD being on a flat surface or a ramp. The distance sensors provide information on distances between the AMD and surrounding obstacles. Using IMU measurements, the AMD determines a first speed limit that is safe given the tilt of the AMD. Using the distance sensors, the AMD determines a second speed limit that is safe given a distance to an obstacle. The AMD determines a maximum speed based on the first and second speed limits. Based on the maximum speed, the AMD determines whether to adjust a current speed and by how much.

公开(公告)号：US12007406B1

公开(公告)日：2024-06-11

申请号：US17036993

申请日：2020-09-29

Applicant: Amazon Technologies, Inc.

Inventor： Miro Yakov Shverdin

IPC: G01P13/00 ,  G01P15/08 ,  H04B1/3827 ,  H04L67/50 ,  H04S7/00

CPC classification number: G01P13/00 ,  G01P15/08 ,  H04B1/385 ,  H04L67/535 ,  H04S7/303

Abstract: Devices, systems, and methods are provided for activity detections based on device orientation and user handedness. A method may include determining, by a wearable device, first and second accelerometer data, the first accelerometer data associated with a first axis, and the second accelerometer data associated with a second axis perpendicular to the first axis. The method may include determining a first mean acceleration value based on the first accelerometer data, and determining a second mean acceleration value based on the second accelerometer data. The method may include determining, based on the first mean acceleration value and the second mean acceleration value, an orientation of the wearable device, the orientation indicative of a user wearing the wearable device on a right limb or a left limb. The method may include sending an indication of the orientation to an application of the wearable device.

公开(公告)号：US11723564B1

公开(公告)日：2023-08-15

申请号：US17164353

申请日：2021-02-01

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Miro Yakov Shverdin ,  Nevzat Akin Kestelli

IPC: A61B5/1455 ,  A61B5/0205 ,  A61B5/00 ,  G01J3/51 ,  A61B5/024 ,  A61B5/332

CPC classification number: A61B5/14552 ,  A61B5/0205 ,  A61B5/7278 ,  G01J3/51 ,  A61B5/02433 ,  A61B5/332 ,  A61B5/681 ,  A61B2562/0238 ,  A61B2562/043 ,  A61B2562/185

Abstract: A compact optical sensor is used to determine heart rate, hemoglobin, hydration, peptides, or oxygen saturation using a light source and a single photodiode. The single photodiode has a first filter and a second filter. The first filter is closer to the light source and is transparent to green light and blocks red light. The second filter is farther from the light source and is transparent to red light and blocks green light. This arrangement of the filters facilitates acquisition of backscattered light from desired depths of measurement within the body of a user. At a first time, the light source emits red light and first output from the photodiode is determined. At a second time, the light source emits green light and second output from the photodiode is determined. The optical sensor determines oxygen saturation using the first output and heart rate using the second output.

公开(公告)号：US12216053B1

公开(公告)日：2025-02-04

申请号：US17354710

申请日：2021-06-22

Applicant: Amazon Technologies, Inc.

Inventor： Miro Yakov Shverdin ,  Annapurna Karicherla ,  Carla Alejandra Gimenez

IPC: G01N1/00 ,  C12Q1/70 ,  G01N21/64

Abstract: Systems and methods for testing a biological sample for each of two or more target pathogens employ fluorescence detection from a single fluorescence reading chamber. A method of testing a biological sample for each of two or more target pathogens includes forming a detection cycle liquid by combining detection cycle compounds with a biological sample liquid formed from a biological sample. The detection cycle compounds include respective CRISPR enzymes for each of the two or more target pathogens. The respective CRISPR enzymes are tagged with respective spectrally unique fluorescent probes. The detection cycle liquid is exposed to a multi-wavelength fluorescence excitation light. A multi-wavelength fluorescence light emission detection signal indicative of intensity of fluorescence light emitted by the detection cycle liquid over multiple wavelengths is processed to generate detection data indicative of presence or absence of each of the two or more target pathogens in the biological sample.