The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1998
Filed:
Jul. 22, 1996
Joon-Young Jeong, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A self-propelled steerable robot emits ultrasonic waves in forward, rightward and leftward directions. On the basis of detecting those waves after being reflected from the walls, a controller on the robot determines an angle of travel of the robot relative to a wall of a room, enabling the robot to be turned and oriented parallel to opposite walls of the room. By then emitting waves toward those opposite walls and detecting the waves reflected therefrom, respective distances of the robot to those opposite walls can be determined. By turning the robot toward the longer of the two distances, and repeating the above steps, the robot can eventually become disposed at a center of the room. Then the robot advances from the center until reaching one of four known points in the room where the respective distances between both opposite walls changes. This enables the controller to determine where in the room the robot is located. The robot then travels along a predetermined path from that point.