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:
Aug. 15, 1989
Filed:
Sep. 26, 1985
Applicant:
Inventor:
Per K Hansen, Burlington, VT (US);
Assignee:
Position Orientation Systems, Inc., Burlington, VT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
367103 ; 367900 ; 367905 ;
Abstract
Disclosed herein is an omnidirectional distance measurement system which transmits and receives ultrasound waves using as many as four transmitting-receiving transducers having specially shaped beamwidths. Through the use of four such ultrasonic transducers, the system may be set up to obtain any beamwidth from 5.degree. up to 360.degree. in both the horizontal and vertical planes. In the preferred embodiment, the present invention is able to detect the distance and direction to up to four objects in a prescribed work area at any one time and may also detect the speed of any one of the objects if desired.