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:
Apr. 22, 2008
Filed:
Dec. 02, 2003
Applicant:
Sverre Holm, Asker, NO;
Inventor:
Sverre Holm, Asker, NO;
Assignee:
Sonitor Technologies AS, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 3/808 (2006.01); G01S 5/30 (2006.01); G01S 11/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method and a system for monitoring and position determination of objects and/or living beings within an area, such as, e.g. a room in a building or a road tunnel. The system comprises a plurality of identification tags equipped with an ultrasonic receiver and radio transmitter which is attached to the objects that have to be monitored. The identification tags receive ultrasonic signals whose arrival time they measure. This information together with the identification tags'ID code are transmitted by radio waves to a central unit which calculates the position of each of the identification tags.