Ultrasonic cliff detection and depth estimation using tilted sensors

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12265186
APP PUB NO 20230152434A1
SERIAL NO

17987304

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
INVENSENSE INC1745 TECHNOLOGY DRIVE SUITE 200 SAN JOSE CA 95110

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hall, Daniela Eybens, FR 16 170
Lei, Tony San Francisco, US 8 155
Li, Zhongyang Noyarey, FR 4 0
Youssef, Joe Noyarey, FR 23 106

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