公开(公告)号：US12265186B2

公开(公告)日：2025-04-01

申请号：US17987304

申请日：2022-11-15

Applicant: InvenSense, Inc.

Inventor： Daniela Hall ,  Tony Lei ,  Zhongyang Li ,  Joe Youssef

IPC: G01S7/521 ,  B06B1/02 ,  G01S15/931

Abstract: A robotic cleaning appliance includes a housing to which is coupled a surface treatment item and a sensor assembly with first and second transducers and an acoustic interface. The first sonic transducer transmits sonic signals through an acoustic interface and out of a first acoustic opening toward a surface beneath the robotic cleaning appliance. The sonic signals reflect from the surface as corresponding returned signals received by the second sonic transducer via a second acoustic opening port of the acoustic interface. A first annular ring is defined around the first acoustic opening port and a second annular rings is defined around the second acoustic opening port. The annular ring attenuate direct path echoes between the acoustic opening ports. The first and second acoustic opening ports are coupled the first and sonic transducers, respectively, via first and second horns; and the horns are tilted from orthogonal with the surface.

公开(公告)号：US20210033421A1

公开(公告)日：2021-02-04

申请号：US16944493

申请日：2020-07-31

Applicant: InvenSense, Inc.

Inventor： Zhongyang Li ,  Joe Youssef ,  Abbas Ataya ,  Sinan Karahan ,  Sankalp Dayal

IPC: G01C25/00 ,  G01C21/20 ,  G05D1/02 ,  G06N20/00 ,  G06N5/04

Abstract: A mobile robotic device has a motion sensor assembly configured to provide data for deriving a navigation solution for the mobile robotic device. The mobile robotic device temperature is determined for at least two different epochs so that an accumulated heading error of the navigation solution can be estimated based on the determined temperature at the at least two different epochs. A calibration procedure is then performed for at least one sensor of the motion sensor assembly when the estimated accumulated heading error is outside a desired range.

公开(公告)号：US11680823B2

公开(公告)日：2023-06-20

申请号：US16944493

申请日：2020-07-31

Applicant: InvenSense, Inc.

Inventor： Zhongyang Li ,  Joe Youssef ,  Abbas Ataya ,  Sinan Karahan ,  Sankalp Dayal

IPC: G01C25/00 ,  G01C21/20 ,  G06N20/00 ,  G06N5/04 ,  G05D1/02

CPC classification number: G01C25/00 ,  G01C21/20 ,  G05D1/0212 ,  G06N5/04 ,  G06N20/00 ,  G05D2201/0203

Abstract: A mobile robotic device has a motion sensor assembly configured to provide data for deriving a navigation solution for the mobile robotic device. The mobile robotic device temperature is determined for at least two different epochs so that an accumulated heading error of the navigation solution can be estimated based on the determined temperature at the at least two different epochs. A calibration procedure is then performed for at least one sensor of the motion sensor assembly when the estimated accumulated heading error is outside a desired range.