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. 22, 2005
Filed:
Jan. 16, 2001
Alan Bensky, Rehovot, IL;
Shlomo Berliner, Rehovot, IL;
Uri Holzkaner, Rehovot, IL;
Edward Mirodin, Rehovot, IL;
Alan Bensky, Rehovot, IL;
Shlomo Berliner, Rehovot, IL;
Uri Holzkaner, Rehovot, IL;
Edward Mirodin, Rehovot, IL;
Bluesoft Ltd., Rehovot, IL;
Abstract
A system, apparatus, and method for determining the distance between two objects using an indirect propagation delay measurement is disclosed. A frequency hopping scheme (such as the Bluetooth™ technology) is used to measure the relative phase offset of the received signal between the various frequencies. For a given distance between the objects, the phase offset vs. frequency curve is a straight line with the slope dependent upon the measured distance. After the phase of the received signals is detected, the data is plotted on a curve and the slope is calculated.