System and device for a self orienting device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5935179
SERIAL NO

08998705

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention discloses a proximity sensing system and an autonomous device, like a vacuum-cleaner, being provided with a pair of independent driven wheels (17, 18). The device contains for the proximity orientation and guiding a microprocessor system and a sonar system which includes at least an ultrasonic transmitter and an ultrasonic receiver. An additional mechanical touch sensor is also used in the form of a forward directed bumper (16) carrying the transmitter as well as receiving microphone units. The mechanical bumper actuates at least one touch sensor if the device makes contact with an obstacle in the course of the moving device. The transmitter is a stripe-shaped ultrasound transducer (10) which is positioned at the front of the device and transmits ultrasonic waves with a narrow vertical distribution within a wide sector in front of the device. The receiver includes a number of microphone units (12) provided with hollow pipes (12a, 12b) for the sound. The microphone units (12) together with the transmitter form an efficient sonar system for detecting echoes reflected from objects in the forward course of the moving device.

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Patent Owner(s)

Patent OwnerAddress
AKTIEBOLAGET ELECTROLUX105 45 STOCKHOLM

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kleiner, Mendel Hov.ang.s, SE 1 221
Riise, Bjorn Sollentuna, SE 4 630

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