公开(公告)号：US20220326185A1

公开(公告)日：2022-10-13

申请号：US17226447

申请日：2021-04-09

Applicant: InvenSense, Inc.

Inventor： Mitchell H. KLINE ,  Joe YOUSSEF

IPC: G01N29/04 ,  A47L9/28 ,  B25J11/00 ,  G01N29/22

Abstract: A robotic cleaning appliance includes a sonic transducer and a processor coupled with a housing. The sonic transducer transmits sonic signals toward a surface within its ringdown distance and receives corresponding returned signals. Following cessation of the sonic signals, the processor samples the ringdown signal generated by the sonic transducer during an early portion before the corresponding returned signals have reflected back to the sonic transducer, and during a later portion which includes the corresponding returned signals. The processor utilizes the sampled early portion to estimate a void ringdown signal of which represents performance of the sonic transducer in absence of returned signals being received. The processor compares the estimated void ringdown signal to the later portion of the ringdown signal and generates a metric based on the comparison. The processor utilizes the metric to determine a type of the surface, out of a plurality of surface types.

公开(公告)号：US20230152434A1

公开(公告)日：2023-05-18

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 ,  G01S15/931 ,  B06B1/02

CPC classification number: G01S7/521 ,  G01S15/931 ,  B06B1/0261

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：US20180345128A1

公开(公告)日：2018-12-06

申请号：US15907379

申请日：2018-02-28

Applicant: InvenSense, Inc.

Inventor： Jibran AHMED ,  Karthik KATINGARI ,  Hemabh SHEKHAR ,  Joe YOUSSEF

IPC: A63F13/211 ,  A63F13/22 ,  A63F13/537

Abstract: In a method of motion sensor calibration, a motion with which to calibrate a motion sensor is determined. The motion sensor is controlled by a sensor processor and the motion sensor is comprised within a user interface that is coupled with a gaming engine. The sensor processor and the gaming engine coordinate regarding the motion. The sensor processor monitors the motion sensor for evidence of the motion made as a user input via the user interface in response to game content implemented by the gaming engine, based on the coordination, to incite the motion. The sensor processor calibrates the motion sensor with the motion.