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:
Feb. 26, 2008
Filed:
Jan. 28, 2005
Applicant:
Sverre Holm, Asker, NO;
Inventor:
Sverre Holm, Asker, NO;
Assignee:
Sonitor Technologies AS, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 3/80 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for obtaining an increased update rate in an indoor acoustic positioning system for determining the position of one or more identification tags, comprising transmitting from an identification tag an acoustic spread spectrum sequence that is unique to the identification tag, receiving the spread spectrum sequence in a detector unit and recording the arrival time of the spectrum sequence, and comparing the spectrum sequence with stored values of the spectrum sequences used by all the identification tags in the positioning system.