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.:

US 8699947 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 15, 2014

Filed:

Sep. 03, 2010
Applicants:

Martin Nyström, Hörja, SE;

Magnus Helgstrand, Södra Sandby, SE;

Inventors:

Martin Nyström, Hörja, SE;

Magnus Helgstrand, Södra Sandby, SE;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); H04B 5/02 (2006.01);
U.S. Cl.
CPC ...
H04B 5/02 (2013.01); H04M 1/72519 (2013.01); H04M 1/72583 (2013.01); H04M 19/041 (2013.01); H04B 1/3833 (2013.01);
Abstract

The present invention relates to a method and arrangement for positioning at least two devices, a first and a second device relative each other. The method comprises: transmitting a number of magnetic pulses with the first device, detecting said pulses with the second device, based on said detected pulses generating a number of virtual planes, and determining a crossing line between said planes corresponding to a direction between said devices.


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